Systems administrator jobs in Knoxville, TN

This is a full time/Perm position. The client will not sponsor a visa so candidates must be US Cit or Green Card Must have Oracle or Service Now experience The Solution Administration Lead is responsible for managing, mentoring, and supporting our Oracle ERP solution admin team. As the Solution Administrator Lead, your time will be spent defining and implementing proactive processes for supporting the Oracle ERP implementation, providing end user support, and owning the identity access management process. This position will also be responsible for identifying root cause analysis on issues and identifying trends in support incidents. An ideal candidate enjoys digging into a problem and setting up systems for others to follow with assisting team members. About The Team The Solution Administrator Lead will manage support for our Oracle Could Applications. This Team works closely with Technology Development Teams, Risk Analysts, ETO Engineering Teams and Security to ensure the Oracle environment is being supported effectively for the enterprise. This team interacts regularly with various teams in technology to help quickly address and resolve issues related to application release, Environment refresh, testing availability, and support. Primary Qualifications Excellent interpersonal, verbal, and written communication skills and the ability to interact with a diverse group of team members, including executives, managers, and IT professionals Excellent analytical problem-solving skills with the ability to think outside of the box Keen attention to detail, organized, and ability to articulate and document potential solutions Proven ability to work independently, effectively within time constraints and changing priorities Is the Primary delegate to see through completion of Business-Critical requests escalated outside of normal processes Proven ability to mentor and coach the team, create personal development plans and conduct frequent 1:1s with team members Leading personnel management, including staff recruitment, performance assessment and training Proficient in determining underlying causes and relevant system key performance indicators (KPIs) Partnering with Major Incident team and providing updates on incident progress, notifying service desk team of impending changes or agreed outages, etc. Oversee the responsibilities contained in the Maintenance Runbooks Collaborate with the ERP Support on knowledge management matters, including policy decisions on tiered support, article content, strategy etc. Role Responsibilities Design systems to support continuous delivery and adapt test environment management to support on-demand, self-service automation Develop process to track test environments required for QA Create plans to deliver environments to support sprint-based development Represent ERP activities to release engineers to automate the deployment and configuration of applications to test environments and production Monitor and guarantee uptime of Oracle environments Coordinate with appropriate Teams to Provide ongoing support for Oracle environments Communicate test environment availability to project management and quality assurance Develop KPIs to track efficacy of test environment delivery efforts Resolve conflicts between teams competing for limited testing resources Produce monthly reports on the Operational Health of team & present to Leadership Frequent review of key metrics and processes to determine process optimizations Escalation point for leadership incidents/service requests that they cannot resolve within agreed timescales, and partnering to provide a viable solution Desired Skills Experience in supporting and/or interacting within a large corporate environment Proficiency in leading both in-person and remote teams Experience in dealing with third-party-provided services In-depth knowledge of escalation procedures, incident management, and other disciplines related to service delivery Mastery of ITIL (Information Technology Infrastructure Library) principles Strong analytical, problem solving and project management skills Strong ability to work effectively within time constraints, changing priorities, and independently. Proven experience in project management, group facilitation, and data gathering Strong ability to manage assigned projects or programs that are aligned to operations and strategic objectives Experience with Application release and CI/CD tools. Understanding of DevSecOps fundamentals Familiar with configuration practices in the Oracle environment. Serve as a mentor to other team members. Bachelor's degree or equivalent technical and business experience.

The Intune / Mobile Device Management Administrator will provide Tier III IT operations support across the Office of Information Management (OIM) and SC mission systems, focusing on endpoint security, mobile device lifecycle management, and compliance. This role is responsible for operating and maintaining Microsoft Intune, Endpoint Manager, and related MDM infrastructure to ensure secure, reliable, and compliant device management in alignment with DOE directives and federal IT standards. The ideal candidate will have strong expertise in mobile device management, policy enforcement, and automation, while supporting hybrid environments and evolving enterprise service delivery models. Administer and maintain Microsoft Intune / Endpoint Manager, including device enrollment, compliance policies, configuration profiles, and application deployment. Manage Windows, mac OS, iOS, and Android endpoints, ensuring secure baselines and compliance with organizational policies. Implement and enforce conditional access, MFA, and mobile security policies through Azure AD and Intune. Support BYOD and corporate-owned device programs, ensuring proper separation of personal and corporate data. Provide Tier III support for endpoint troubleshooting, enrollment issues, and policy conflicts. Oversee the provisioning, deployment, and retirement of mobile devices across the enterprise. Maintain accurate records of device inventories, compliance status, and lifecycle tracking. Support application packaging and deployment for mobile platforms. Collaborate with cybersecurity teams to remediate vulnerabilities identified through mobile compliance gaps. Continuously monitor endpoint health, compliance, and Intune infrastructure performance. Generate and deliver compliance and audit reports to leadership and stakeholders. Detect and resolve device compliance failures, policy conflicts, and outages in line with SLAs. Track and report on license utilization, resource consumption, and Intune/Azure cost usage. Maintain and update the Configuration Management Database (CMDB) with endpoint and Intune configuration items. Submit all changes via the OIM-approved change management system in accordance with the Change Control Review (CCR) process. Evaluate proposed changes for technical and cybersecurity risk, ensuring compliance with secure baselines. Document and maintain Intune policies, SOPs, and configuration records, reviewed quarterly or after major changes. Minimum Qualifications US Citizen with a Bachelor's Degree in Information Technology, Computer Science or a related field or equivalent relevant experience; Master's Degree preferred. Demonstrated technical proficiency equivalent to industry-recognized certifications, such as: CompTIA Security+ or Network+ 5 + years of relevant work experience. Other Job Specific Skills Vendor-specific certifications in mobile security or endpoint platforms. Proficiency in PowerShell scripting, Azure CLI, and automation tools for Intune and endpoint management. Strong knowledge of Intune, Azure AD, conditional access, and mobile device security frameworks. Ability to support Windows, mac OS, iOS, and Android endpoints. Familiarity with federal IT compliance standards (e.g., FISMA, NIST SP 800-53). Preferred Skills Experience with hybrid endpoint management (Intune + SCCM). Familiarity with mobile application management (MAM) and mobile threat defense integrations. Strong troubleshooting skills for device enrollment, compliance failures, and policy conflicts. Excellent documentation and communication skills for compliance reporting and operational transparency. Knowledge of federal government IT best practices and standards. Ability to work under federal IT security protocols and procedures.

Job Description: Field IT Roles and Responsibilities: Detailed Primary Description of project/Requirement Description Installing, configuring, and maintaining desktop computers, peripheral equipment, and software/applications within established standards and guidelines. Working with OEM vendors for replacing spares, hardware repairs & troubleshooting Inventory management Imaging of Laptops & Desktops Printer Management Assistance in fixing issues for Conference room and working with Vendor for room setup Hardware/software troubleshooting and resolution Perform IMAC (Install, Move, Add, Change) services for IT assets, and support mobile phone and non-PC equipment such as scanners and printers. Offer VIP support with tailored, high-touch service and manage audio-visual, conferencing, and technologies Network & Sharing printer installation Knowledge of Office 365 support Coverage/compliance software installation and troubleshooting Good communication skill Good Knowledge of DHCP, DNS. Maintain IT inventory, coordinate vendor support, and assist with procurement Support Mac devices Strictly adhere to defined Service Level Agreements (SLA's) Support recurring meetings, events, and after-hours activities as required Documenting incidents, problems, and resolutions for future reference and for the knowledge base Profiles focused primarily on service desk or remote assistance are not suitable for this engagement. Good to have skills L1 level network troubleshooting and resolution for LAN Connectivity Hands & feet support to Backend team for Network/Server/application issue Working with vendor support contacts to resolve technical issues Labelling Racks & devices Server mounting/movement Hands & Feet Support for DC (Compute, Storage, Backup, Network.) Hands & feet Support Requirement for Physical Servers, Network Devices, Storage, etc Device reboot, console connection for remote access, cable/SFP removal/insert, cable replacement, racking/stacking, etc.

Job DescriptionInfrastructure Operations Center Systems Administrator Overview: A Department of Energy facility is hiring an Infrastructure Operations Center Systems Administrator! The position is on the Enterprise Operations Team which exists to provide compute and storage infrastructure for the enterprise operations of the Lab. Additionally they provide a 24/7 monitoring operation for the Critical Systems run by the Laboratory. This role is shiftwork and rotational enabling our team to be staffed 24/7/365.Major Duties/Responsibilities: Document team processes including work instructions and maintain a living knowledge base. Monitor infrastructure equipment and servers for uptime as well as performance. Assist in Backup Administration and Restore requests. Assist in Enterprise Server Patching. Assist in Server Vulnerability management. Work with a Data Center Infrastructure Management System (DCIM) to help track assets and connections. Work with other system engineers and vendors to troubleshoot and resolve hardware and software issues. Provide off-hours support, troubleshooting, and escalation. Provide suggestions for process improvement and implement when required. Install and configure software, both commercial packages and various open-source packages. Support data storage systems and backup services. Derive results for metrics on technical performance as requested. Engage with engineers to automate workflows. Locate and execute automation/self-healing solutions. Deliver mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote diversity, equity, inclusion, and accessibility by fostering a respectful workplace - in how we treat one another, work together, and measure success. Basic Qualifications: An Associates degree in Information Technology or a related technical field of study and five (5) to seven (7) years of experience. An overall combination of equivalent experience may be considered. Experience in the following areas: PowerShell and Scripting via other tools Backup architecture and operations SCCM and server patching Managing a virtualized environment including tuning and maintenance Windows and Linux Server Platforms Enterprise class backup solutions Basic understanding of network communication and demonstrated troubleshooting techniques. Basic understanding of virtualization environments and operations. Excellent interpersonal skills suitable for user support and ability to work well with peer system administrators. Preferred Qualifications: Enterprise automated VM Cluster installation/configuration/management experience. Previous experience working in a government, scientific, or other highly technical environment. Demonstrated ability to perform job tasks while considering cyber security risk of those tasks, and consulting with security professionals when necessary. Experience in an environment requiring change control processes. Excellent written and oral communication skills. Motivated self-starter with the ability to work independently and to participate creatively in collaborative teams across the laboratory. Ability to function well in a fast-paced research environment, set priorities to accomplish multiple tasks within deadlines, and adapt to ever changing needs.

Job Details US TN IIQ 001 Knoxville TN Office - Knoxville, TNDescription About Inhabit Inhabit operates a unique collective of tech-forward companies serving the residential, commercial, and short-term rental industries. Our team members deliver best-in-class software solutions and services while fostering innovation and collaboration with business leaders and industry experts. Inhabit believes that property managers are central to the success of the residential and short-term rental markets and delivers products built to empower them, their investors, and communities. Come help build the company you want to Inhabit. To learn more, visit inhabit.com. Job Description StreamlineVRS is looking for a System Administrator / DevOps with extensive PostgreSQL, AWS Cloud and Kubernetes experience. In this role you will work in close cooperation with the development teams. You will be responsible for smooth and reliable operation of the developer and production environments in the Cloud. What You'll Do (Functions & Responsibilities) Maintenance, configuration, deployment and reliable operation of computer systems, network services, and virtualization Management of virtual servers in the Cloud, integration and automation of CI/CD processes Management of Hi-Load PostgreSQL database clusters, responsibility for capacity, storage planning and performance thereof Management of Kubernetes clusters and local Docker development environments Management of NoSQL databases: Redis, AWS ElastiCache Management of other AWS services Management of CloudFlare CDN, DNS and caching services Monitoring and observability with Zabbix, Prometheus, Loki and Grafana Troubleshooting of hardware and software errors by running diagnostics, documenting problems and resolutions, prioritizing problems, and assessing impact of issues Regular backup and archiving operations, implementation of data protection processes, disaster recovery, and failover procedures Documenting system administration practices Installation and upgrade of computer components and software Technical support of the development team Qualifications What We're Looking For (Minimum qualifications) 10 years of system administration experience with strong preference for UNIX/Linux 5 years of network administration experience, IPv4 and IPv6 services 2 years of microservice, containerization and CI/CD experience, Kubernetes preferred AWS certification at least AWS Cloud Practitioner level, AWS Sysop/Architect preferred PostgreSQL certification at least “Professional” level, “Expert” level preferred 3 years of experience with High Load applications and clusterization 3 years of experience with server automation tools, Ansible preferred Ability to travel to the U.S. / Mexico. Soft Skills: Teamwork, Problem-solving skills, Good Communication, Adaptability, Attention to detail, Proactive, Time management. Open to work with a team distributed between different time zones. Education Requirements Bachelor's degree in Computer Science or similar technical field of study or equivalent practical experience. DBA courses (PostgresSQL/Oracle) and certification for Professional level. AWS certification Kubernetes certification on the Certified Kubernetes Administrator (CKA) level or above Type Salaried, Exempt, Full-Time Location Knoxville, TN Benefits Include Competitive Pay Health Insurance: Medical, Dental, Vision and Prescription Plans Health Savings Accounts Retirement Savings Plan (401K) with discretionary company match Short- and Long-Term Disability Company Paid $25,000.00 life insurance Supplemental Life and AD&D Insurance Employee Assistance Program Paid Holidays Paid Vacation Paid Volunteer Time Inhabit Employee Discount Programs Our Company is an Equal Opportunity Employer and complies with all federal, state, and local laws, including providing reasonable accommodations to applicants.

The Network Engineer is a hybrid operations and engineering role responsible for both the day-to-day administration of the Department of Energy (DOE) Office of Science's network infrastructure and the design and execution of enterprise network modernization efforts. Based in Oak Ridge, TN, this position plays a critical role in both maintaining secure, high-performance connectivity and leading infrastructure projects such as core network redesign, cloud integration, and security architecture improvements. The ideal candidate combines deep technical skills with the ability to lead, plan, and execute at an engineering level. + Serve in a dual-capacity role that balances high-level network design and architecture responsibilities with day-to-day operational support and device configuration across enterprise environments. + Administer and maintain a multi-site enterprise network, including the configuration and lifecycle management of routers, switches, firewalls, VPNs, wireless infrastructure, and load balancing technologies. + Develop scalable and resilient network architectures that support high availability, fault tolerance, and future growth, with an emphasis on alignment with DOE enterprise IT strategy and security policies. + Engineer and support complex routing strategies involving protocols such as EIGRP, OSPF, and BGP; ensure optimal route redistribution, convergence, and path selection across hybrid connectivity models including DMVPN and MPLS. + Firewall and Security Integration: Implement and manage next-generation firewall platforms (e.g., Palo Alto), including high availability configuration, SSL decryption, policy optimization, IDS/IPS system configurations, and integration with cloud and on-premises security architectures. + Design, deploy, and manage hybrid network topologies within Microsoft Azure, including Virtual Networks (VNets), ExpressRoute, peering, NAT Gateway, and firewall solutions to ensure secure and performant cross-premise connectivity. + Support the implementation and management of NAC solutions such as Cisco ISE, including potential integration with Microsoft Intune to enforce endpoint compliance and identity-based access control. + Lead and execute infrastructure modernization initiatives, including the planning, implementation, and validation of new networking technologies or the re-architecture of existing environments. + Leverage network performance tools such as Catalyst Center, SolarWinds and Azure Network Watcher to monitor availability, perform root cause analysis, and implement performance enhancements. + Maintain accurate technical documentation including topology diagrams, configuration baselines, IP address management, and change control records to support audit readiness and operational continuity. + Partner with adjacent IT disciplines-including cloud, systems, security-to deliver integrated solutions; provide mentorship and technical leadership to junior technical staff as needed. **Minimum Qualifications** + Bachelor's Degree in Computer Science, Information Technology, or related field or equivalent experience. Master's Degree preferred. + Cisco CCNP (Routing & Switching or Enterprise). Microsoft AZ-700: Designing and Implementing Microsoft Azure Networking Solutions, and Microsoft AZ-104: Azure Administrator. + 7+ years of experience. **Other Job Specific Skills** + Expert knowledge of TCP/IP, BGP, OSPF, DMVPN, DNS, DHCP. + Cisco routing/switching with Nexus 9K, Catalyst, ISR, and C8500 series. + Strong Palo Alto experience including SSL decryption, HA configuration, and IPS tuning. + Azure networking including ExpressRoute, NSGs, virtual WAN, peering, VPNs. + Familiarity with Cisco ACI or willingness to rapidly train up for deployment. + Experience leading physical buildouts and Data Center Moves: rack layout, cable management, port planning. + PowerShell or Python scripting for automation and config deployment. **Preferred Qualifications** + CCIE, PCNSE, or additional Azure network/security certs. + Experience with Cisco ISE, DNA Center, and SD-WAN. + Experience in a federal or DOE environment. + Prior Engineering leadership in large-scale infrastructure projects to include Data Center Moves. + Experience implementing Azure Front Door, WAF, Private Link, or NAT Gateway. + Experience working for the Federal Government as an IT Contractor. **Compensation Ranges** Compensation ranges for ASM Research positions vary depending on multiple factors; including but not limited to, location, skill set, level of education, certifications, client requirements, contract-specific affordability, government clearance and investigation level, and years of experience. The compensation displayed for this role is a general guideline based on these factors and is unique to each role. Monetary compensation is one component of ASM's overall compensation and benefits package for employees. **EEO Requirements** It is the policy of ASM that an individual's race, color, religion, sex, disability, age, sexual orientation or national origin are not and will not be considered in any personnel or management decisions. We affirm our commitment to these fundamental policies. All recruiting, hiring, training, and promoting for all job classifications is done without regard to race, color, religion, sex, disability, or age. All decisions on employment are made to abide by the principle of equal employment. Physical Requirements The physical requirements described in "Knowledge, Skills and Abilities" above are representative of those which must be met by an employee to successfully perform the primary functions of this job. (For example, "light office duties' or "lifting up to 50 pounds" or "some travel" required.) Reasonable accommodations may be made to enable individuals with qualifying disabilities, who are otherwise qualified, to perform the primary functions. **Disclaimer** The preceding job description has been designed to indicate the general nature and level of work performed by employees within this classification. It is not designed to contain or be interpreted as a comprehensive inventory of all duties, responsibilities and qualifications required of employees assigned to this job. $80,100 - $122k EEO Requirements It is the policy of ASM that an individual's race, color, religion, sex, disability, age, gender identity, veteran status, sexual orientation or national origin are not and will not be considered in any personnel or management decisions. We affirm our commitment to these fundamental policies. All recruiting, hiring, training, and promoting for all job classifications is done without regard to race, color, religion, sex, veteran status, disability, gender identity, or age. All decisions on employment are made to abide by the principle of equal employment.

Job Description GIG System Integration / Generation Industrial & Government is not eligible for recruiting or sourcing by outside parties. Disclaimer: Be cautious and only respond to emails from our “mesainc.com” domain. We will never ask for sensitive information, such as bank account details, SSN, etc., via email. If you receive any communication asking for such information, it is not from Mesa. For any concerns, or to verify the authenticity of a message, please contact us through our official channels. We've got the power to energize your career and spark YOUR work/life balance through professional development and exceptional benefits. Don't delay, plug in today for an inclusive and meaningful career. Mesa Associates, Inc. is a woman/minority-owned full service engineering, procurement, & construction management firm covering power, defense, aerospace, industrial, commercial and municipal entities. We specialize in power generation and delivery services including electrical high-voltage, substations, switchyard, transmission line, & distribution design. We have been in the top 10 of EC&M's Top 40 Electrical Design Firms since 2012. With over 1,000 associates, we are big enough to perform, but small enough to care! Work closely with other system integrators to develop and implement PLC, HMI, and SCADA projects. Work will often include coordination with electrical engineers and designers as well as panel fabricators. The most frequent systems that we work with are Allen Bradley and Schneider. Work will largely be in industrial environments. Some potential aspect may include working with client to understand process, interpreting functional description and control narratives, configuring complete controls system, developing communication networks, integrating multiple systems and vendor equipment into a complete system, developing PLC and HMI code. Good communication skills and relationship building with clients is a requirement. Some additional responsibilities include leading software reviews with clients, testing of the designed systems, and field commissioning and startup of designed systems. Applicant must possess willingness to accept responsibility and work as necessary to meet schedules and commitments. Education/Experience: 2 or 4 year electrical, computer or networking related degree 2-5 Responsibilities: Work with other system integrator to develop PLC and HMI projects Help develop and execute SCADA, OSI Pi and other similar projects Support commissioning, testing, and outages for projects that we have done the integration. Assist as needed to support BD and estimating efforts Notice to External Search Firms: Mesa Associates, Inc. and its subsidiaries do not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Mesa Associates, Inc. Talent Acquisition engages with approved search firms directly for specific hiring needs.

The Senior Network Engineer is a hybrid operations and engineering role responsible for both the day-to-day administration of the network infrastructure and the design and execution of enterprise network modernization efforts. Based in Oak Ridge, TN, this position plays a critical role in both maintaining secure, high-performance connectivity and leading infrastructure projects such as core network redesign, cloud integration, and security architecture improvements. The ideal candidate combines deep technical skills with the ability to lead, plan, and execute at an engineering level. Key Responsibilities • Hybrid Engineering and Administration: Serve in a dual-capacity role that balances high-level network design and architecture responsibilities with day-to-day operational support and device configuration across enterprise environments. • Network Infrastructure Management: Administer and maintain a multi-site enterprise network, including the configuration and lifecycle management of routers, switches, firewalls, VPNs, wireless infrastructure, and load balancing technologies. • Architecture and Design: Develop scalable and resilient network architectures that support high availability, fault tolerance, and future growth, with an emphasis on alignment with DOE enterprise IT strategy and security policies. • Routing and Protocol Engineering: Engineer and support complex routing strategies involving protocols such as EIGRP, OSPF, and BGP; ensure optimal route redistribution, convergence, and path selection across hybrid connectivity models including DMVPN and MPLS. • Firewall and Security Integration: Implement and manage next-generation firewall platforms (e.g., Palo Alto), including high availability configuration, SSL decryption, policy optimization, IDS/IPS system configurations, and integration with cloud and on-premises security architectures. • Cloud and Hybrid Networking: Design, deploy, and manage hybrid network topologies within Microsoft Azure, including Virtual Networks (VNets), ExpressRoute, peering, NAT Gateway, and firewall solutions to ensure secure and performant cross-premise connectivity. • Network Access Control (NAC): Support the implementation and management of NAC solutions such as Cisco ISE, including potential integration with Microsoft Intune to enforce endpoint compliance and identity-based access control. • Project Leadership: Lead and execute infrastructure modernization initiatives, including the planning, implementation, and validation of new networking technologies or the re-architecture of existing environments. • Monitoring and Performance Optimization: Leverage network performance tools such as Catalyst Center, SolarWinds and Azure Network Watcher to monitor availability, perform root cause analysis, and implement performance enhancements. • Documentation and Standards Compliance: Maintain accurate technical documentation including topology diagrams, configuration baselines, IP address management, and change control records to support audit readiness and operational continuity. • Cross-Functional Collaboration and Mentorship: Partner with adjacent IT disciplines-including cloud, systems, security-to deliver integrated solutions; provide mentorship and technical leadership to junior technical staff as needed. Required Qualifications • Education : Bachelor's degree in Information Technology or related field • Experience: Atleast 7 years of relevant experience Certifications (Required): o Cisco CCNP (Routing & Switching or Enterprise) o Microsoft AZ-700: Designing and Implementing Microsoft Azure Networking Solutions o Microsoft AZ-104: Azure Administrator Technical Competencies: o Expert knowledge of TCP/IP, BGP, OSPF, DMVPN, DNS, DHCP o Cisco routing/switching with Nexus 9K, Catalyst, ISR, and C8500 series o Strong Palo Alto experience including SSL decryption, HA configuration, and IPS tuning o Azure networking including ExpressRoute, NSGs, virtual WAN, peering, VPNs o Familiarity with Cisco ACI or willingness to rapidly train up for deployment o Experience leading physical buildouts and Data Center Moves: rack layout, cable management, port planning o PowerShell or Python scripting for automation and config deployment Preferred Qualifications • CCIE, PCNSE, or additional Azure network/security certs • Experience with Cisco ISE, DNA Center, and SD-WAN • Experience in a federal or DOE environment • Prior Engineering leadership in large-scale infrastructure projects to include Data Center Moves • Experience implementing Azure Front Door, WAF, Private Link, or NAT Gateway • Experience working for the Federal Government as an IT Contractor Must be a US Citizen Must have minimum of a Bachelor's Degree Must be able to pass a full background check and drug screening *No third party recruiters*

Senior HPC Linux Systems Engineer Founded in 1999 in the beautiful Smoky Mountains of East Tennessee, Cadre5 provides innovative technical solutions to our customers locally and nationally. Our Cadre5 Lab Partners division has partnered with The High-Performance Computing Systems Section within the National Center for Computational Sciences (NCCS) at Oak Ridge National Laboratory (ORNL) to recruit a qualified Senior HPC Linux Systems Engineer. NCCS Provides state-of-the-art computational and data science infrastructure coupled with dedicated technical and scientific professionals tackling large-scale problems across a broad range of scientific domains for accelerating scientific discovery and engineering advances. NCCS hosts the Oak Ridge Leadership Computing Facility (OLCF), one of the Department of Energy's (DOE) National User Facilities which operates Frontier, the nation's first exascale supercomputer. ORNL delivers scientific discoveries and technical breakthroughs needed to realize solutions in energy and national security and provides economic benefit to the nation. This premier research institution located near Knoxville in Oak Ridge, TN, addresses national needs through impactful research and world-leading research centers. This is a full-time, permanent position that can telecommute. Occasional travel to the Oak Ridge facility may be required. Why Cadre5? Working with highly talented team members 3 weeks' vacation Excellent medical insurance, including employer-paid benefits Job Responsibilities: Systems Administration: Lead the architecture and deployment of HPC-scale services Create and maintain internal documentation of system architectures, configurations and procedures Serve as the highest tier of support for complex issues, providing quick and efficient resolution Virtualization and Automation: Design, deploy and manage resources in the NCCS VMware environment Identify potential automation targets and lead efforts to automate processes Define policies and procedures for automation and configuration management for the team and organization as a whole Identity Management and Security: Design and administration of RSA SecureID and PingFederate servers Deploy, configure and support identity and access management services such as single-sign on (SSO), OAuth, two-factor auth, zero trust, etc… Project Management and Leadership: Lead Infrastructure projects through all phases from planning to design, implementation and support Mentor and train junior staff, creating training documentation, holding knowledge sharing sessions, and fostering skill growth throughout the team Propose and implement improvements to existing Infrastructure systems as well as new systems, processes and procedures Basic Qualifications: Bachelor's degree in computer science or closely relate field and a minimum of 8 years of experience in Linux systems administration, or a Master's Degree and a minimum of 4 year of experience in Linux systems administration. An equivalent combination of education and experience will be considered. The ability to obtain and maintain a Department of Energy "Q" clearance is required. This requires US Citizenship. Preferred Qualifications: Excellent interpersonal/communication skills and the ability to work within a team Strong experience in Identity Management, supporting SSO, OAuth, two-factor authentication primarily in PingFederate and RSA SecureID. Entra ID experience a bonus. Strong working knowledge of Linux system fundamentals and common network protocols Programming and scripting skills in common languages such as Python and bash Understanding of versioning and code review tools like GitHub and GitLab Experience implementing and supporting highly available systems and services Experience with configuration management tools such as Puppet or Ansible Experience deploying and maintaining virtual environments using VMWare Experience deploying, maintaining and troubleshooting a variety of infrastructure services such as OpenLDAP, DNS, DHCP, etc. Ability to plan, prioritize and complete assigned projects with minimal supervision Benefits Cadre5 offers excellent pay and benefits, to include full medical, dental, and vision coverage coupled with 401K match, 15 days PTO, and 10 holidays. Cadre5 is an equal opportunity employer. All qualified applicants, including individuals with

The Network Engineer is a hybrid operations and engineering role responsible for both the day-to-day administration of the Department of Energy (DOE) Office of Science's network infrastructure and the design and execution of enterprise network modernization efforts. Based in Oak Ridge, TN, this position plays a critical role in both maintaining secure, high-performance connectivity and leading infrastructure projects such as core network redesign, cloud integration, and security architecture improvements. The ideal candidate combines deep technical skills with the ability to lead, plan, and execute at an engineering level. Serve in a dual-capacity role that balances high-level network design and architecture responsibilities with day-to-day operational support and device configuration across enterprise environments. Administer and maintain a multi-site enterprise network, including the configuration and lifecycle management of routers, switches, firewalls, VPNs, wireless infrastructure, and load balancing technologies. Develop scalable and resilient network architectures that support high availability, fault tolerance, and future growth, with an emphasis on alignment with DOE enterprise IT strategy and security policies. Engineer and support complex routing strategies involving protocols such as EIGRP, OSPF, and BGP; ensure optimal route redistribution, convergence, and path selection across hybrid connectivity models including DMVPN and MPLS. Firewall and Security Integration: Implement and manage next-generation firewall platforms (e.g., Palo Alto), including high availability configuration, SSL decryption, policy optimization, IDS/IPS system configurations, and integration with cloud and on-premises security architectures. Design, deploy, and manage hybrid network topologies within Microsoft Azure, including Virtual Networks (VNets), ExpressRoute, peering, NAT Gateway, and firewall solutions to ensure secure and performant cross-premise connectivity. Support the implementation and management of NAC solutions such as Cisco ISE, including potential integration with Microsoft Intune to enforce endpoint compliance and identity-based access control. Lead and execute infrastructure modernization initiatives, including the planning, implementation, and validation of new networking technologies or the re-architecture of existing environments. Leverage network performance tools such as Catalyst Center, SolarWinds and Azure Network Watcher to monitor availability, perform root cause analysis, and implement performance enhancements. Maintain accurate technical documentation including topology diagrams, configuration baselines, IP address management, and change control records to support audit readiness and operational continuity. Partner with adjacent IT disciplines-including cloud, systems, security-to deliver integrated solutions; provide mentorship and technical leadership to junior technical staff as needed. Minimum Qualifications Bachelor's Degree in Computer Science, Information Technology, or related field or equivalent experience. Master's Degree preferred. Cisco CCNP (Routing & Switching or Enterprise). Microsoft AZ-700: Designing and Implementing Microsoft Azure Networking Solutions, and Microsoft AZ-104: Azure Administrator. 7+ years of experience. Other Job Specific Skills Expert knowledge of TCP/IP, BGP, OSPF, DMVPN, DNS, DHCP. Cisco routing/switching with Nexus 9K, Catalyst, ISR, and C8500 series. Strong Palo Alto experience including SSL decryption, HA configuration, and IPS tuning. Azure networking including ExpressRoute, NSGs, virtual WAN, peering, VPNs. Familiarity with Cisco ACI or willingness to rapidly train up for deployment. Experience leading physical buildouts and Data Center Moves: rack layout, cable management, port planning. PowerShell or Python scripting for automation and config deployment. Preferred Qualifications CCIE, PCNSE, or additional Azure network/security certs. Experience with Cisco ISE, DNA Center, and SD-WAN. Experience in a federal or DOE environment. Prior Engineering leadership in large-scale infrastructure projects to include Data Center Moves. Experience implementing Azure Front Door, WAF, Private Link, or NAT Gateway. Experience working for the Federal Government as an IT Contractor.

Please note this posting is to advertise potential job opportunities. This exact role may not be open today but could open in the near future. When you apply, a Cisco representative may contact you directly if a relevant position opens. Applications are accepted until further notice. Meet the Team Our dedicated team members are engineering the foundation of Cisco's core technologies across the globe, including teams in Engineering like Common Hardware Group, Network Product Eng, Infrastructure & Security. You will be an essential contributor to the development of next-generation innovations in operating systems, firmware, networking stacks, and security infrastructure. Working on these teams, you will gain hands-on experience with hardware-software integration and low-level networking technologies that power Cisco's critical products. Discover the possibilities when deep technical expertise meets creativity and help build solutions that transform how the world connects and communicates. Your Impact You are a passionate engineer skilled in low-level programming, networking protocols, and hardware-software integration, with strong communication and collaboration abilities. You thrive in solving complex challenges through innovation and precision, while being highly organized and process-driven. Your work develops and maintains critical software and tools that ensure hardware compatibility, network performance, and security for Cisco's core products like operating systems, firmware, and networking stacks. By effectively managing your time and streamlining processes, you deliver high-quality solutions that embed resilience and efficiency into global communications infrastructure, directly contributing to Cisco's leadership in trusted, scalable networking technologies. Minimum Qualifications * Currently enrolled in an undergraduate degree program. Relevant fields include: Computer Science, Software Engineering, Computer Engineering, Information Technology, Data Science, Mathematics, Statistics, Electrical Engineering, or related technical fields. * Proficiency in C programming and experience with embedded Linux, including a solid understanding of operating system fundamentals. * Familiarity with network principles & concepts, routing protocols, and general networking concepts. * Hands-on experience with automation tools and scripting languages (such as Python or Bash), along with knowledge of CI/CD pipelines (e.g., Jenkins, GitHub Actions). * Understanding of DevSecOps practices and their application in software development workflows. Preferred Quals: * Conceptual understanding or hands-on experience with AI/ML. * Understanding of cybersecurity principles and security protocols. * Experience with FPGA development. * Knowledge of signal and power integrity, and PCB design. Why Cisco? At Cisco, we're revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We've been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you'll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada: Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees are offered benefits, subject to Cisco's plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time. U.S. employees are eligible for paid time away as described below, subject to Cisco's policies: * 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees * 1 paid day off for employee's birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco * Non-exempt employees receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees * Exempt employees participate in Cisco's flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) * 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next * Additional paid time away may be requested to deal with critical or emergency issues for family members * Optional 10 paid days per full calendar year to volunteer For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco's policies. Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows: * .75% of incentive target for each 1% of revenue attainment up to 50% of quota; * 1.5% of incentive target for each 1% of attainment between 50% and 75%; * 1% of incentive target for each 1% of attainment between 75% and 100%; and * Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation. For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid. The applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $44,000.00 - $185,000.00 Non-Metro New York state & Washington state: $44,000.00 - $185,000.00 * For quota-based sales roles on Cisco's sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

XCEL Engineering, Inc. is an award-winning small business that provides trusted information technology, engineering, consulting and project management solutions and services to federal agencies and organizations. Originally founded in 1971 by professional engineers at the University of Tennessee, XCEL was acquired in 2003 by U.S. Army and Navy veterans and in 2023 became a MartinFed company. XCEL Engineering is a part of IT Lab Partners (ITLP) which was created to support a leading research facility in the East Tennessee region in recruiting the best and the brightest technical talent. Considering joining our impressive team today! JOB OVERVIEW Xcel Engineering is seeking a Senior HPC Storage Systems Engineer to design, operate and maintain clusters, servers, and workstations storage supporting services where science happens at ORNL! This position resides in the Emerging Technologies & Computing team in the Research Computing group in the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL). The Emerging Technology Computational Group facilitates goals through HPC systems engineering, integration, and support for the research community. By providing design, deployment, optimization, monitoring, and tooling support across multiple clustered storage infrastructures, we facilitate Lab-wide R&D projects. Our HPC clusters range in scope from just a handful of nodes to over fifty-thousand cores. We partner with ORNL research organizations to enable research excellence and delivery. We work with other clustered computing and HPC groups to help research programs identify the best solutions for their needs. When we build our customer's environments, our team collaborates to design, implement, and maintain the systems from inception to retirement. ESSENTIAL FUNCTIONS Architect, deploy, and manage large-scale HPC storage systems, including parallel file systems such as Lustre, GPFS/Spectrum Scale, BeeGFS and WEKA Design, implement, and operate large-scale Ceph storage clusters for HPC and research workloads, delivering reliable, high-performance object, block, and file storage services. Ensure the availability, performance, scalability, and security of production storage environments. Administer and optimize enterprise storage platforms such as Qumulo and NetApp in support of HPC and research workloads. Design, deploy, and maintain archival storage solutions including Spectra Logic BlackPearl and large-scale tape libraries to ensure long-term data preservation and accessibility. Integrate high-performance, enterprise, and archival storage layers into cohesive tiered storage architectures that balance cost, scalability, and performance for diverse scientific workflows. Leverage automation and monitoring solutions to minimize day-to-day maintenance while identifying opportunities to optimize system performance and management. Collaborate with researchers and technical POCs to support large data workflows and optimize I/O performance for scientific workloads. Automate storage provisioning, monitoring, and maintenance using scripting and configuration management tools. Diagnose and resolve complex storage and I/O-related issues in high-throughput, low-latency HPC environments. Evaluate emerging storage technologies (NVMe, object storage, hierarchical storage management, burst buffers) and contribute to strategic planning for future HPC systems. Work with 24/7 operations staff to streamline monitoring and troubleshooting, significantly reducing the need for off-hours support. Deliver ORNL's mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace. BASIC QUALIFICATIONS A BS degree in computer science, computer engineering, information technology, information systems, science, engineering, or related discipline and 8-12 years of relevant professional experience; or an equivalent combination of education and experience. Master's degree holders: 7-10 years of relevant experience. PhD holders: 4-6 years of relevant experience. Five (5) or more years managing UNIX/Linux systems. Demonstrated experience managing HPC storage and large-scale enterprise storage systems. Three (3) or more years working with configuration management and automation tools such as Git, Jenkins, Ansible, or Puppet. Proficiency with at least one scripting language (Bash, Python, Perl, etc.). Strong Linux administration and advanced troubleshooting experience. Experience supporting large data systems and/or HPC scientific workloads. Strong desire to innovate and evaluate new technologies for HPC and storage environments. Collaborative approach and ability to become a trusted advisor to research teams. DESIRED QUALIFICATIONS Active DOE Q, DoD Top Secret, or TS/SCI clearance is strongly preferred. Solid understanding of multiple operating systems and HPC cluster technologies. Experience with Rocky/CentOS/RHEL, Ubuntu, VMware. Understanding of HPC job schedulers (SLURM) and user support workflows. Experience with container technologies in HPC environments. Experience with multiple system deployment mechanisms (Warewulf, PXEboot, Cobbler, Bright). Experience with GPU clusters (NVIDIA, AMD) for AI/ML and scientific workloads. Deep expertise with high-performance parallel file systems (Lustre, GPFS/Spectrum Scale, BeeGFS, WEKA). Knowledge of storage networking (Infiniband, NVMe-oF, SAN/NAS architectures). Familiarity with RAID, ZFS, and object storage technologies. Strong background in performance monitoring, benchmarking, and I/O optimization. Experience with monitoring systems such as Grafana, CheckMK, Nagios, Zabbix, Ganglia. Previous experience working in a government, scientific, or other highly technical environment. Strong documentation skills and ability to prepare web-based documentation. PHYSICAL REQUIREMENTS & ENVIRONMENTAL CONDITIONS Inside office environment. Working on a computer for long periods of time. May involve long period of sitting at a desk. The work environment is fast-paced and sometimes involves extreme deadline pressures. OTHER DUTIES This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. Xcel Engineering is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, religious creed, gender, sexual orientation, gender identity, gender expression, transgender, pregnancy, marital status, national origin, ancestry, citizenship status, age, disability, protected Veteran Status, genetics or any other characteristics protected by applicable federal, state or local law. If you are a qualified individual with a disability or disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Xcel Engineering's current openings as a result of your disability. You can request reasonable accommodations by calling ************. Thank you for your interest in Xcel Engineering. All positions at Xcel Engineering, Inc. are contingent upon passing both a background check and drug screening prior to a start date and are subject to random drug screenings during the employment period. In addition, Xcel Engineering is an E-Verify employer. Job Posted by ApplicantPro

Requisition Id 15559 Oak Ridge National Laboratory (ORNL) is seeking a Senior HPC Linux Systems Engineer to serve as a technical leader supporting some of the most advanced computing environments in the world. This evergreen posting represents multiple potential openings for senior-level roles across ORNL's high-performance computing ecosystem. Senior HPC Linux Systems Engineers are recognized experts who lead the design, implementation, and optimization of complex HPC infrastructure. They manage large-scale technical projects, guide technical direction for their teams, and serve as trusted advisors to scientific and operational leadership across ORNL. Major Duties and Responsibilities * Provide technical leadership in the design, integration, and administration of large-scale Linux-based HPC clusters, high-speed networks, and storage systems. * Lead medium to large technical projects, coordinating requirements, schedules, and deliverables across internal and external stakeholders. * Architect and deploy advanced infrastructure solutions supporting exascale-class and mission-critical computing environments. * Serve as a technical mentor for HPC engineers, guiding best practices in automation, performance tuning, and system security. * Develop, implement, and maintain configuration management and automation frameworks (e.g., Ansible, Puppet, Salt) to enhance reliability and reproducibility. * Perform advanced system performance analysis, troubleshooting, and optimization, ensuring system scalability and long-term sustainability. * Manage critical vendor and partner relationships, representing ORNL's technical requirements during procurement, integration, and system acceptance. * Contribute to strategic planning and technology roadmaps, influencing unit goals and technical direction. * Collaborate closely with scientists, researchers, and IT specialists to align infrastructure capabilities with research and security objectives. * Ensure compliance with DOE cybersecurity standards, configuration baselines, and operational policies. * Author technical documentation, present internal briefings, and communicate complex issues and resolutions to management and stakeholders. * Participate in on-call rotations, maintenance windows, and incident response as needed to support 24x7 operations. Basic Qualifications * Bachelor's degree in computer science, engineering, or a related technical field. * A minimum of 8 years of relevant experience in Linux systems administration or HPC systems engineering. Preferred Qualifications * Demonstrated experience leading the design and deployment of HPC or large-scale distributed computing systems. * Expertise with batch schedulers (SLURM, PBS, LSF) and parallel file systems (Lustre, GPFS/Spectrum Scale). * Proven ability to lead technical projects from concept through implementation, balancing technical depth with project delivery. * Strong proficiency in automation and infrastructure-as-code frameworks (Ansible, Puppet, Salt). * Advanced scripting or programming skills (Python, Bash, Go) for automation and operational tooling. * In-depth understanding of high-speed interconnects (InfiniBand, Slingshot, Ethernet) and storage architectures. * Experience managing identity and access management systems, including MFA, SSO, and zero-trust frameworks (PingFederate, RSA SecureID, Entra ID). * Experience integrating virtualization or containerization solutions (VMware, KVM, Apptainer, Podman) into HPC environments. * Ability to manage client and stakeholder relationships across multiple directorates and technical disciplines. * Excellent written and verbal communication skills, including the ability to present complex technical concepts to diverse audiences. * Proven ability to influence technical strategy and mentor staff in a collaborative research environment. Special Requirement This position requires the ability to obtain and maintain clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program. About ORNL As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation's most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive scientific breakthroughs and translate them into solutions for energy, environmental, and security challenges facing the nation. Why Join Us * Work on the world's most powerful supercomputers, including Frontier, the first system to achieve exascale performance. * Enable breakthrough science in fields like fusion energy, climate modeling, AI, and national security. * Collaborate with diverse teams of scientists, engineers, and technologists from across the DOE complex and academia. * Grow your career in a mission-driven, innovation-focused environment with access to professional development and leadership opportunities. * Enjoy life in East Tennessee, with a thriving research community, scenic outdoor recreation, and a high quality of life. This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired. We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment. If you have trouble applying for a position, please email ***********************. ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. UT-Battelle is an E-Verify employer. Nearest Major Market: Knoxville

MTI - Panel / Panel Build is not eligible for recruiting or sourcing by outside parties. Disclaimer: Be cautious and only respond to emails from our “mesainc.com” domain. We will never ask for sensitive information, such as bank account details, SSN, etc., via email. If you receive any communication asking for such information, it is not from Mesa. For any concerns, or to verify the authenticity of a message, please contact us through our official channels. Mesa Technologies, Inc. seeks a Systems Integrator for our machine build group. The ideal candidate will be responsible for completing the electrical design and control programs for custom automation as well as: Must have background in the use of CAD design software and a wide array of PLC, HMI, robot, and machine vision software. Must have a working knowledge of best design practices for design and operation of custom equipment. It is preferred that applicants have experience working for a machine builder or automation provider. Notice to External Search Firms: Mesa Associates, Inc. and its subsidiaries do not accept unsolicited resumes and will not be obligated to pay a placement fee for unsolicited resumes. Mesa Associates, Inc. Talent Acquisition engages with approved search firms directly for specific hiring needs.

Job DescriptionNetwork Administrator Qualifications2+ years experience in a network administration role Network Administration of Cisco, Arista, and Palo Alto network platforms Light System Administration Solid Troubleshooting and problem-solving skills Network Security knowledge and experience is a plus Excellent communication and collaboration skills Strong attention to detail and organizational skills Relevant certifications such as CCNA, CompTIA Network+, etc. Required Skills & AbilitiesKnowledge of networking concepts: TCP/IP, DNS, DHCP, STP, LAN, WANKnowledge of routing protocols. ex. BGP, OSPFKnowledge of Cisco, Arista, and Palo Alto network platforms Knowledge of network monitoring product(s) Must be able to work independently or as part of a team Must be able to identify technology needs/inefficiencies and address without supervision or technical guidance Must be able to prioritize assignments and effectively manage their time Excellent customer service skills to communicate with internal teams and external customers ResponsibilitiesAs a Network Administrator, you will be responsible for managing the ticket queue for the network infrastructure team. This will include troubleshooting network issues and providing technical support for network-related problems. Knowing when to escalate a problem/issue to a higher level so SLAs are not breached. Small projects will be assigned at times to help grow into a higher-level position.

Linux Systems Engineer Founded in 1999 in the beautiful Smoky Mountains of East Tennessee, Cadre5 provides innovative technical solutions to our customers locally and nationally. Our Cadre5 Lab Partners division has partnered with the Emerging Technologies, AI & Computing group in the Research Computing Support division in the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL) to recruit a qualified Linux Systems Engineer who will focus on supporting the technological needs of ORNL researchers. ORNL delivers scientific discoveries and technical breakthroughs needed to realize solutions in energy and national security and provides economic benefit to the nation. This premier research institution located near Knoxville in Oak Ridge, TN, addresses national needs through impactful research and world-leading research centers. #CJ This is a full-time, permanent position that requires on-site work. Why Cadre5? Working with highly talented team members 3 weeks' vacation Excellent medical insurance, including employer-paid benefits Overview: This role advocates and promotes Linux systems to researchers who process large data sets and/or develop code as a part of their project. This includes ensuring the availability, performance, scalability, and security of production systems. The ETAC Group frequently uses automation and monitoring solutions to minimize our day-to-day maintenance and are always looking for opportunities to optimize system management practices or system performance. As the primary domain experts for these systems, you will work with technical staff to install and help tune the performance of various scientific toolsets. Job Responsibilities: · Develop and document system and service diagrams, procedures, and software build/install notes. · Create observability metrics and dashboards and assist in ongoing documentation efforts. · Install, configure, customize, and maintain Linux software including building software from source. · Collaborate with researchers, developers, and other engineers to develop creative solutions and solve complex challenges. · Create and foster partnerships with research at ORNL to encourage outstanding delivery of services. · Translate project deliverables, milestones, and timelines into predictable team output and tasks. · Provide consulting in the selection and purchase of hardware and software systems. · Ensure configuration management using tools such as Git, Jenkins, Ansible, Puppet, etc. · Ensure the secure and effective operation of systems through compliance with ORNL procedures and IT Internal Operating Procedures. · Develop, architect, and engineer systems and related application software solutions, including research projects. This includes: o Monitoring for system issues o Guiding project tasks through the engineering processes and ensuring that standard methodologies are implemented continuously and consistently o Managing backup services o Troubleshooting and resolving system problems quickly and effectively o Working with other systems engineers and vendors to resolve hardware and software issues Basic Qualifications: A BS degree in computer science, computer engineering, information technology, information systems, science, engineering, business, or a related discipline and a minimum of five (5) to seven (7) years of aligned professional experience is required for consideration. An overall combination of equivalent education and experience may be considered. o Masters and PhD degree holders in the same fields of study are also encouraged to apply: Masters' holders should have a minimum of four (4) to six (6) years of relevant and aligned experience. PhD holders should have up to three (3) years of relevant and aligned experience. Strong knowledge of Enterprise Linux distributions and enterprise class server/storage hardware. Experience monitoring and maintaining hardware and software including, but not limited to, InfiniBand, Slurm, Lustre, RDMA, Weka, and related technologies central to this team's work. Experience with configuration management and automation tools such as Git, Jenkins, Ansible, Puppet. Experience managing a virtualized environment including tuning and maintenance. Strong working knowledge of system design. Ability to obtain and maintain a security clearance is required. Experience creating scripts using Bash, Python, etc. Experience with on premises cloud native platforms (OpenStack, VMware, or others). Experience with work planning and documentation tools (such as Jira, Confluence, etc.) The ability to obtain and maintain a Department of Energy "Q" clearance is required. This requires US Citizenship. Preferred Qualifications: · Experience supporting AI-enabled systems and software for model training is preferred. · Understanding of platforms to support users with job submissions and troubleshooting. · Excellent interpersonal skills suitable for communication with customers and management. · Effective written, presentation, and verbal communication skills. · Experience with Centos/RHEL, Ubuntu, VMware. · Experience building and running containerized applications in an environment. Knowledge of Apptainer, Warewulf, Fuzzball. · Experience managing systems using GPU/CUDA clusters for AI/ML and/or image processing. · Proven ability to work in a dynamic environment and support large data systems. · Effective documentation skills, including ability to prepare simple documentation web pages. Benefits Cadre5 offers excellent pay and benefits, to include full medical, dental, and vision coverage coupled with 401K match, 15 days PTO, and 10 holidays. Cadre5 is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. Cadre5 is an E-Verify Employer.

XCEL Engineering, Inc. is an award-winning small business that provides trusted information technology, engineering, consulting and project management solutions and services to federal agencies and organizations. Originally founded in 1971 by professional engineers at the University of Tennessee, XCEL was acquired in 2003 by U.S. Army and Navy veterans and in 2023 became a MartinFed company. XCEL Engineering is a part of IT Lab Partners (ITLP) which was created to support a leading research facility in the East Tennessee region in recruiting the best and the brightest technical talent. Considering joining our impressive team today! JOB OVERVIEW Xcel Engineering is seeking a Senior HPC Storage Systems Engineer to design, operate and maintain clusters, servers, and workstations storage supporting services where science happens at ORNL! This position resides in the Emerging Technologies & Computing team in the Research Computing group in the Information Technology Services Directorate at Oak Ridge National Laboratory (ORNL). The Emerging Technology Computational Group facilitates goals through HPC systems engineering, integration, and support for the research community. By providing design, deployment, optimization, monitoring, and tooling support across multiple clustered storage infrastructures, we facilitate Lab-wide R&D projects. Our HPC clusters range in scope from just a handful of nodes to over fifty-thousand cores. We partner with ORNL research organizations to enable research excellence and delivery. We work with other clustered computing and HPC groups to help research programs identify the best solutions for their needs. When we build our customer's environments, our team collaborates to design, implement, and maintain the systems from inception to retirement. ESSENTIAL FUNCTIONS Architect, deploy, and manage large-scale HPC storage systems, including parallel file systems such as Lustre, GPFS/Spectrum Scale, BeeGFS and WEKA Design, implement, and operate large-scale Ceph storage clusters for HPC and research workloads, delivering reliable, high-performance object, block, and file storage services. Ensure the availability, performance, scalability, and security of production storage environments. Administer and optimize enterprise storage platforms such as Qumulo and NetApp in support of HPC and research workloads. Design, deploy, and maintain archival storage solutions including Spectra Logic BlackPearl and large-scale tape libraries to ensure long-term data preservation and accessibility. Integrate high-performance, enterprise, and archival storage layers into cohesive tiered storage architectures that balance cost, scalability, and performance for diverse scientific workflows. Leverage automation and monitoring solutions to minimize day-to-day maintenance while identifying opportunities to optimize system performance and management. Collaborate with researchers and technical POCs to support large data workflows and optimize I/O performance for scientific workloads. Automate storage provisioning, monitoring, and maintenance using scripting and configuration management tools. Diagnose and resolve complex storage and I/O-related issues in high-throughput, low-latency HPC environments. Evaluate emerging storage technologies (NVMe, object storage, hierarchical storage management, burst buffers) and contribute to strategic planning for future HPC systems. Work with 24/7 operations staff to streamline monitoring and troubleshooting, significantly reducing the need for off-hours support. Deliver ORNL's mission by aligning behaviors, priorities, and interactions with our core values of Impact, Integrity, Teamwork, Safety, and Service. Promote equal opportunity by fostering a respectful workplace. BASIC QUALIFICATIONS A BS degree in computer science, computer engineering, information technology, information systems, science, engineering, or related discipline and 8-12 years of relevant professional experience; or an equivalent combination of education and experience. Master's degree holders: 7-10 years of relevant experience. PhD holders: 4-6 years of relevant experience. Five (5) or more years managing UNIX/Linux systems. Demonstrated experience managing HPC storage and large-scale enterprise storage systems. Three (3) or more years working with configuration management and automation tools such as Git, Jenkins, Ansible, or Puppet. Proficiency with at least one scripting language (Bash, Python, Perl, etc.). Strong Linux administration and advanced troubleshooting experience. Experience supporting large data systems and/or HPC scientific workloads. Strong desire to innovate and evaluate new technologies for HPC and storage environments. Collaborative approach and ability to become a trusted advisor to research teams. DESIRED QUALIFICATIONS Active DOE Q, DoD Top Secret, or TS/SCI clearance is strongly preferred. Solid understanding of multiple operating systems and HPC cluster technologies. Experience with Rocky/CentOS/RHEL, Ubuntu, VMware. Understanding of HPC job schedulers (SLURM) and user support workflows. Experience with container technologies in HPC environments. Experience with multiple system deployment mechanisms (Warewulf, PXEboot, Cobbler, Bright). Experience with GPU clusters (NVIDIA, AMD) for AI/ML and scientific workloads. Deep expertise with high-performance parallel file systems (Lustre, GPFS/Spectrum Scale, BeeGFS, WEKA). Knowledge of storage networking (Infiniband, NVMe-oF, SAN/NAS architectures). Familiarity with RAID, ZFS, and object storage technologies. Strong background in performance monitoring, benchmarking, and I/O optimization. Experience with monitoring systems such as Grafana, CheckMK, Nagios, Zabbix, Ganglia. Previous experience working in a government, scientific, or other highly technical environment. Strong documentation skills and ability to prepare web-based documentation. PHYSICAL REQUIREMENTS & ENVIRONMENTAL CONDITIONS Inside office environment. Working on a computer for long periods of time. May involve long period of sitting at a desk. The work environment is fast-paced and sometimes involves extreme deadline pressures. OTHER DUTIES This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. Xcel Engineering is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regards to race, color, religion, religious creed, gender, sexual orientation, gender identity, gender expression, transgender, pregnancy, marital status, national origin, ancestry, citizenship status, age, disability, protected Veteran Status, genetics or any other characteristics protected by applicable federal, state or local law. If you are a qualified individual with a disability or disabled veteran, you have the right to request a reasonable accommodation if you are unable or limited in your ability to use or access Xcel Engineering's current openings as a result of your disability. You can request reasonable accommodations by calling ************. Thank you for your interest in Xcel Engineering. All positions at Xcel Engineering, Inc. are contingent upon passing both a background check and drug screening prior to a start date and are subject to random drug screenings during the employment period. In addition, Xcel Engineering is an E-Verify employer.

Please note this posting is to advertise potential job opportunities. This exact role may not be open today but could open in the near future. When you apply, a Cisco representative may contact you directly if a relevant position opens. Applications are accepted until further notice. Meet the Team Our dedicated team members are engineering the foundation of Cisco's core technologies across the globe, including teams in Engineering like Common Hardware Group, Network Product Eng, Infrastructure & Security. You will be an essential contributor to the development of next-generation innovations in operating systems, firmware, networking stacks, and security infrastructure. Working on these teams, you will gain hands-on experience with hardware-software integration and low-level networking technologies that power Cisco's critical products. Discover the possibilities when deep technical expertise meets creativity and help build solutions that transform how the world connects and communicates. Your Impact You are a passionate engineer skilled in low-level programming, networking protocols, and hardware-software integration, with strong communication and collaboration abilities. You thrive in solving complex challenges through innovation and precision, while being highly organized and process-driven. Your work develops and maintains critical software and tools that ensure hardware compatibility, network performance, and security for Cisco's core products like operating systems, firmware, and networking stacks. By effectively managing your time and streamlining processes, you deliver high-quality solutions that embed resilience and efficiency into global communications infrastructure, directly contributing to Cisco's leadership in trusted, scalable networking technologies. Minimum Qualifications * Completion within the past 3 years, or current enrollment with expected completion within 12 months, of a certification or relevant degree program (e.g., Associate's, Apprenticeship, Boot Camp, or Certification in a specialized program + 1 year of relevant experience, High School Diploma + 2 years of relevant experience) or Bachelor's + 0 years of relevant experience. * Proficiency in C programming and experience with embedded Linux, including a solid understanding of operating system fundamentals. * Familiarity with network principles & concepts, routing protocols, and general networking concepts. * Hands-on experience with automation tools and scripting languages (such as Python or Bash), along with knowledge of CI/CD pipelines (e.g., Jenkins, GitHub Actions). * Understanding of DevSecOps practices and their application in software development workflows. Preferred Quals: * Conceptual understanding or hands-on experience with AI/ML. * Understanding of cybersecurity principles and security protocols. * Experience with FPGA development. * Knowledge of signal and power integrity, and PCB design. Why Cisco? At Cisco, we're revolutionizing how data and infrastructure connect and protect organizations in the AI era - and beyond. We've been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint. Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you'll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere. We are Cisco, and our power starts with you. Message to applicants applying to work in the U.S. and/or Canada: Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process. U.S. employees are offered benefits, subject to Cisco's plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time. U.S. employees are eligible for paid time away as described below, subject to Cisco's policies: * 10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees * 1 paid day off for employee's birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco * Non-exempt employees receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees * Exempt employees participate in Cisco's flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations) * 80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next * Additional paid time away may be requested to deal with critical or emergency issues for family members * Optional 10 paid days per full calendar year to volunteer For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco's policies. Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows: * .75% of incentive target for each 1% of revenue attainment up to 50% of quota; * 1.5% of incentive target for each 1% of attainment between 50% and 75%; * 1% of incentive target for each 1% of attainment between 75% and 100%; and * Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation. For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid. The applicable full salary ranges for this position, by specific state, are listed below: New York City Metro Area: $104,700.00 - $153,000.00 Non-Metro New York state & Washington state: $92,100.00 - $136,000.00 * For quota-based sales roles on Cisco's sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined. Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

Requisition Id 15558 Oak Ridge National Laboratory (ORNL) is seeking highly motivated HPC Linux Systems Engineers to join teams operating some of the most advanced computing environments in the world. This evergreen posting represents multiple potential openings across ORNL's high-performance computing ecosystem. Successful candidates will help architect, deploy, and maintain HPC systems that accelerate discovery across open science, laboratory research, and secure computing missions. Applications are reviewed on a continual basis as new opportunities arise. Major Duties and Responsibilities * Install, integrate, and administer Linux-based HPC clusters, storage systems, and high-speed networks. * Monitor and optimize system performance, reliability, and scalability for large-scale computational workloads. * Diagnose complex hardware and software issues, coordinating with vendors and internal engineering teams to implement solutions. * Participate in system design, deployment, acceptance testing, and upgrades for leadership-class and research computing systems. * Develop and maintain automation, configuration management, and monitoring solutions using tools such as Ansible, Puppet, Bash, or Python. * Collaborate with scientists, researchers, and technical staff to ensure HPC resources effectively support scientific and mission objectives. * Support identity management, authentication, and access control frameworks to maintain secure and compliant environments. * Document system architectures, processes, and best practices, and contribute to internal knowledge sharing. * Participate in on-call rotations and off-hours maintenance windows as required to support 24x7 operations. Basic Qualifications * Bachelor's degree in computer science, engineering, or a related field. * A minimum of 5 years of experience in Linux systems administration, or an equivalent combination of education and experience Preferred Qualifications * Experience administering HPC clusters or large-scale Linux computing environments. * Familiarity with batch schedulers (e.g., SLURM, PBS, LSF) and parallel file systems (Lustre, GPFS/Spectrum Scale). * Experience implementing and managing automation and configuration management frameworks (Ansible, Puppet, Salt). * Proficiency in scripting or programming (Python, Bash, Go). * Understanding of networking fundamentals and high-speed interconnects (InfiniBand, Ethernet). * Experience deploying or supporting identity management and multi-factor authentication systems (PingFederate, RSA SecureID, Entra ID). * Familiarity with virtualization or containerization technologies (VMware, KVM, Podman, Apptainer). * Experience troubleshooting and tuning high-performance storage, networking, and compute systems. * Excellent communication, collaboration, and problem-solving skills. * Demonstrated ability to lead or contribute to complex technical projects with minimal supervision. Special Requirement This position requires the ability to obtain and maintain clearance from the Department of Energy. As such, this position is a Workplace Substance Abuse (WSAP) testing designated position. WSAP positions require passing a pre-placement drug test and participation in an ongoing random drug testing program. About ORNL As a U.S. Department of Energy (DOE) Office of Science national laboratory, ORNL has an impressive 80-year legacy of addressing the nation's most pressing challenges. Our team is made up of over 7,000 dedicated and innovative individuals! Our goal is to create an environment where a variety of perspectives and backgrounds are valued, ensuring ORNL is known as a top choice for employment. These principles are essential for supporting our broader mission to drive scientific breakthroughs and translate them into solutions for energy, environmental, and security challenges facing the nation. Why Join Us * Work on the world's most powerful supercomputers, including Frontier, the first system to achieve exascale performance. * Enable breakthrough science in fields like fusion energy, climate modeling, AI, and national security. * Collaborate with diverse teams of scientists, engineers, and technologists from across the DOE complex and academia. * Grow your career in a mission-driven, innovation-focused environment with access to professional development and leadership opportunities. * Enjoy life in East Tennessee, with a thriving research community, scenic outdoor recreation, and a high quality of life. This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired. We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment. If you have trouble applying for a position, please email ***********************. ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply. UT-Battelle is an E-Verify employer. Nearest Major Market: Knoxville