Network engineer jobs in Germantown, MD

MANTECH is seeking a motivated, career and customer-oriented Senior Network Engineer to join our team in Chantilly, VA. This is a position requiring onsite work at customer locations within the local area (up to 10% travel). Responsibilities include but are not limited to: Designing and integrating comprehensive network, VoIP, VTC, and data center solutions, adhering to security guidelines and customer specifications to ensure robust and secure communication infrastructures. Managing the end-to-end integration of black and red networks, overseeing design, installation, maintenance, and coordination of a growing network with multiple external services to support operational needs. Manage a Cisco Unified Communications Manager (CUCM) environment and can setup and troubleshoot IP phones, Video Teleconferencing devices and solutions. Helps in diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance Diagnosing and resolving complex issues related to customer sites, telecommunications circuits, routing, switching, VoIP, VTC, network encryption devices, and Cisco data center/security to maintain network stability and performance. Developing and maintaining detailed documentation, diagrams, and standard operating procedures to facilitate knowledge sharing and efficient network management. Providing expert guidance, training, and support to network administrators, service desk personnel, and junior engineers to enhance team capabilities and operational effectiveness. Minimum Qualifications: Bachelor's degree in Computer Science, Network Engineering, or equivalent field, demonstrating a strong academic foundation in related disciplines. 1.5 years of experience is equivalent to 1 year of college. At least 5 years of experience in networking, including VoIP, VTC, data circuits, network encryption devices (e.g., General Dynamics TACLANE), and virtualization technologies. Proficiency in dynamic routing protocols such as OSPF and BGP, with a deep understanding of MPLS and DMVPN Hub and Spoke technology for efficient network routing. DoD 8140 IAT Level II certification: SecurityCE and Computing Environment (CE) certification in Cisco technology (CCNA Voice) required. Valid US Drivers License with the ability to travel up to 10% locally to customer sites. Preferred Qualifications: Cisco Collaboration, Data Center, or Security certifications, indicating advanced expertise and specialized knowledge in relevant Cisco technologies. Experience implementing or troubleshooting VMware NSX-T virtualized networking and security platform developed by VMware. It enables automated implementation of network policies, network objects, isolation, and micro-segmentation. Clearance Requirements: Must have an active DoD TS/SCI with the ability to obtain a polygraph. Physical Requirements: The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations

Job Title: Network Engineer (Top Secret/SCI Cleared) Duration: Permanent, Direct Hire Salary Range: $80-150,000 (negotiable based on experience) As a Network Engineer, you will review and evaluate IT infrastructure and systems to ensure adherence to organizational and mission requirements. You will design, implement, and maintain secure, high-performance network environments. Responsibilities: • Designing, planning, and building communications networks. • Configuring routers, switches, firewalls, and VPN concentrators for LAN/WAN systems using appropriate protocols. • Coordinating LAN/WAN hardware and software improvements or enhancements. • Monitoring network performance using industry-leading technologies. • Developing innovative engineering solutions and applying structured design methodologies. • Planning the implementation of network enhancements. • Analyzing requirements to develop technical solutions for complex challenges. • Performing maintenance and upgrades of network components, including servers, routers, switches, firewalls, and remote access systems. • Ensuring network integrity, connectivity, policy compliance, and system backup and recovery capability. • Supporting acquisition of hardware, software, and subcontractor services when necessary. • Creating plans and configurations for data communication networks. • Evaluating new communications technologies to improve network capabilities. • Maintaining current knowledge of assigned technologies and emerging trends. • Designing and integrating hardware and software components for enterprise networks. • Providing guidance and mentorship to less-experienced network personnel. Qualifications: • Bachelor's degree in information systems, engineering, or a related field (or equivalent work experience). • 5-8 years of experience in network administration. • Have an active DoD Top Secret clearance with SCI eligibility. • DoD 8570/8140 IAT Level II certification. • One of the following networking certifications: Brocade, Cisco (CCNA / CCNP), Juniper (JNCIA / JNCIS / JNCIP), Aruba • Hands-on experience with Aruba networking systems. • Experience with routing protocols. • Excellent verbal and written communication skills. • Willingness to learn and adapt in a fast-paced environment.

About you: The ideal candidate will have a minimum of 3+ years of Network Operations Center or comparable technology experience, preferably with a Bachelor's or Master's degree in a related field. Vendor certifications and/or experience may be considered as an alternative to the degrees. This position is on-site at our Ashburn, Virginia location and cannot be done remotely. The successful candidate will also have: Cisco Certified Network Associate (Compulsory), CCNP, CCIE etc. Hands on configuring and troubleshooting experience on router, switches / firewalls / multiplexer/ networking devices A solid understanding of the OSI or TCP/IP model A good understanding of, and experience with, most of the following network technologies: 802.1q, HSRP, OSPF, BGP, NAT, ACLs, IPSEC, and SNMP. Knowledge of MPLS, LDP, and VRFs strongly desired Excellent cross-team collaboration, technical skills, and clear communications are required Experience / knowledge on monitoring tools like SolarWinds, WhatsUp Gold etc. Good knowledge on SolarWinds tools NCM and NPM is a plus Flexibility to work on 24*7 environment The primary roles and responsibilities you'll have in this position: Maximize network performance by monitoring performance, troubleshooting network problems and outages, scheduling upgrades and coordination with partners on network optimization. Undertake data network fault investigations in network environments using information from multiple sources. Secure network systems by establishing and enforcing policies, defining and monitoring access To handle activation/installation/upgrade calls Provide remote troubleshooting and fault finding assistance and guidance if issues occur upon initial installation. Coordinate with vendors and update customer regarding network maintenances. Speak to customers via email and phone for requirements capture/update. Properly update notes to customer within given timeline. Proper coordination with vendors to resolve the issue, also, to initiate escalations as per the published Vendor SLAs and internal policies. Coordinate with vendor Service Managers proactively to maintain the network stability. The successful candidate will be able to understand and drive solid requirements and then use those to deploy, configure, test, and activate networks. Monitor customer network and coordinate proactively with customer and vendor to troubleshoot the issue(s). To prepare reports daily / monthly / quarterly and otherwise as required. Monitor video circuits on Nimbra Vision monitoring tool.

***Not Open to C2C*** Senior Network Engineer Clearance: Public Trust (OR being willing to obtain, U.S. Citizenship Required) Looking for a Senior Network Engineer to support a large U.S. Department of Justice (DOJ) program. The Antitrust Division of the U.S. Department of Justice (DOJ) is responsible for enforcing federal antitrust laws and promoting fair competition in the marketplace. The Network Engineer will be responsible for the design, configuration, monitoring, and troubleshooting of our enterprise network infrastructure. This includes utilizing tools such as Nagios for network monitoring, Cisco Prime for network management, Cisco Identity Services Engine (ISE) for access control, and Splunk for network logging and analysis. The ideal candidate will have a deep understanding of network technologies and security protocols, along with hands-on experience with the aforementioned tools to ensure our network environment is efficient, secure, and continuously available. Key Responsibilities: Lead the design, configuration, and maintenance of complex network environments, ensuring optimal performance, scalability, and security. Configure and manage Cisco routers, switches, and firewalls, ensuring they meet organizational needs and adhere to best practices. Implement network protocols such as OSPF, BGP, VLANs, QoS, and IPSec to support complex enterprise network architectures. Leverage Nagios to monitor the health, performance, and availability of network devices and services. Develop and implement proactive monitoring strategies using Nagios to detect network issues, alerting on performance degradation or downtime. Respond to network incidents, troubleshoot network issues, and provide timely resolution to minimize downtime and impact on the business. Manage network configuration, inventory, and performance using Cisco Prime Infrastructure. Optimize and automate network provisioning, configurations, and monitoring to enhance operational efficiency. Manage and configure Cisco Identity Services Engine (ISE) to enforce network access control policies for both wired and wireless environments. Integrate Cisco ISE with other network security tools to provide centralized authentication, authorization, and accounting (AAA). Troubleshoot and optimize Cisco ISE configurations to ensure smooth and secure access for end-users and devices. Develop custom Splunk dashboards and alerts for network-related incidents, performance issues, and security events. Maintain up-to-date documentation of network configurations, processes, troubleshooting procedures, and incident resolutions. Identify areas of the network infrastructure that require optimization and implement solutions to improve performance and scalability. Automate routine network management tasks (e.g., configuration backups, performance monitoring) to increase efficiency and reduce manual intervention. Qualifications: Bachelor's degree in Computer Science, Information Technology, Network Engineering, or a related field. Relevant certifications and work experience may be considered. 5+ years of hands-on experience in network engineering with a focus on large, enterprise environments. Strong experience with Nagios for network monitoring, alerting, and performance analysis. Expertise in Cisco Prime for network management, configuration, and automation. In-depth knowledge of Cisco Identity Services Engine (ISE) for access control, network security, and user/device authentication. Proficiency with Splunk for network log management, analysis, and creating custom dashboards and reports. Advanced knowledge of networking protocols (e.g., OSPF, BGP, MPLS, VLANs, QoS, IPSec). Hands-on experience with Cisco network devices, including routers, switches, and firewalls. Knowledge of network security best practices, including ACLs, VPNs, and IDS/IPS. Proficiency in scripting languages (e.g., Python, Bash) for network automation tasks. Strong analytical and troubleshooting skills with the ability to diagnose and resolve complex network issues. Excellent written and verbal communication skills to effectively collaborate with team members, management, and external stakeholders. Ability to work collaboratively in a team environment, providing guidance and mentorship to junior network engineers. Desirable Skills: Experience with cloud networking and integration of on-premise networks with AWS, Azure, or Google Cloud environments. Familiarity with SD-WAN solutions and network automation tools (e.g., Ansible, Terraform). Knowledge of ITIL or other IT service management frameworks. Certifications: Cisco Certified Network Professional (CCNP) or higher; Cisco Certified Internetwork Expert (CCIE) is a plus. Additional certifications in network security or network monitoring (e.g., CompTIA Network+, Splunk Certified Admin) are desirable

Job Title: Network Engineer Level I Duration: Long Term may require from 25% to 50% travel to various domestic customer locations Bachelor's degree or Higher and 3 years High School/GED 6 years Associates 3 year's master's 1 year. Description of Work: This is an excellent opportunity to learn, grow, and be a part of a first-class organization working on complex, leading edge network technology. Position is responsible for providing engineering expertise for complex multi-service networking. The network engineer is responsible for engineering, and supporting of the network design, deployment and operations for a large government customer located in Baltimore, Maryland. Emphasis is on implementing field installations and upgrades for nationwide deployments. This position may require from 25% to 50% travel to various domestic customer locations. Position requires regular on-site work at the customer location and warehouse. Duties and Responsibilities: · Survey network requirements of remote customer offices, campus buildings, and Data Centers. Define equipment, cables, adapters and configurations needed to upgrade buildings and sites to established standard Analyze current network configurations and determine implementation requirements Configure routing protocols, complex switch networks, and Fabric Path configurations Prepare network equipment for deployment by loading appropriate software and configuration setting according to pre-engineered design templates Assemble required equipment, cables, adapters, etc. and arrange delivery to site for installation Upgrade configuration of existing network equipment to support new features and functions Work with field installation contractors while they are on-site and provide all technical details to complete installations · Continually review the customer's network and practices looking for opportunities to enhance network functionality, performance and reliability Assist in the evaluation of potential network products or technical solutions Test LAN/WAN equipment software (i.e.: IOS, NXOS) · Contribute to the development of network documentation, including diagrams, standards, specifications and operating procedures Monitor for opportunities to enhance the customer network/system performance or reliability Monitor for opportunities to improve the customer service delivery practices Perform on-going management of network installation and upgrade projects and maintain deployment schedules Maintain and extend expertise in applicable areas of network and computer hardware and software technology. Basic Qualifications: Minimum knowledge, skills, abilities needed. Bachelor of Science Degree or Degree in a STEM discipline and 3 years of directly related experience or a master's degree and one year or relevant work experience; OR 6 years of relevant work experience in lieu of a degree · Cisco Certified Network Engineers must possess a Cisco CCNA or equivalent level of Cisco Certification and a minimum three (3) years of hands-on network experience configuring routing protocols and switching configuration in medium to large enterprise networks Minimum of 3 years' experience in network connectivity for Cisco LAN and WAN networking equipment and software Demonstrate strong oral and written communication skills, with the ability to communicate technical topics to management and non-technical audiences, as well as interface with the customer daily Preferred Qualifications: Candidates with these skills will be given preferential consideration. Passed the Cisco Certified Networking Profession (CCNP) Hands-on experience with Cisco NXOS Hands-on experience with Cisco IDS and IPS product Prior hands-on experience with Cisco networks automation such as Python scripting and Cisco PRIME Infrastructure Knowledge of Wide Area Network technologies Knowledge of Local Area Network technologies such as Ethernet, wireless LAN as well as the physical media and equipment associated with each Knowledge of IP routing protocols and implementations Ability to diagnose and resolve network problems

Cleared Network Engineer Full-time, Onsite (JBAB D.C.) An active TS/SCI security clearance is a must to apply! We're looking for an adept networking professional who is passionate about deploying and operating technologies that enable highly scalable and available resources for the applications users rely upon. Company POC is a senior-level technologist with direct experience in the environment. This perspective along with the long-term thinking at the company drives focus on the best all-around match for the customer, team member, and company. Responsibilities: Work within the networking team to administer the existing network environment Serve as an escalation point for network administrators Assist with planning of system design, layout and development of baseline configuration for an enterprise network Assist with developing test plans and procedures to implement and validate the organization's requirement for reliability and high availability. Deploy health monitoring and predictive alerts across all sites and networks. Analyze legacy infrastructure and provide recommendations for lifecycle, modernization, and migration strategies. Collaborate with security teams to ensure compliance with security controls Mentor other technical staff on the team Assist in the design and implementation to scale network automation and management Requirements: 6 years of relevant experience CCNP Infrastructure, Datacenter, or Security (but must be well versed in enterprise route/switch)

We're hiring a Network Engineer to help design, build, and support a secure, high-availability enterprise network spanning voice, collaboration, data, and wireless. You'll own projects end to end-from architecture and documentation through deployment and ongoing operations-partnering with internal teams and external vendors to deliver resilient, well-instrumented connectivity across a global footprint. What you'll do Lead and contribute to network projects Recommend solutions for strategy, performance, and security; design and operate voice, data, and wireless services. Engineer and standardize the network Develop specifications, standards, and reference architectures; drive improvements in scale, security, and manageability. Optimize and modernize Analyze current-state infrastructure to improve reliability, efficiency, and ROI; plan for capacity and growth. Vendor and SOW management Coordinate with vendors to ensure scopes of work are accurate and implementations meet requirements. Operate and support Troubleshoot and resolve incidents to minimize business impact; perform routine and emergency maintenance across networking gear. Performance and observability Define and track KPIs for network health; contribute to capacity planning and performance tuning. Resilience and continuity Support DR/BC strategies to achieve minimal downtime; participate in testing and documentation. Collaboration and escalation Partner with adjacent IT teams to diagnose and resolve cross-domain issues; document resolutions in the knowledge base. Ownership and delivery Take the lead on assigned projects, follow work plans, and meet deadlines; participate in on-call rotation for 24/7 coverage. What you'll bring Education/Experience Bachelor's degree preferred (or equivalent experience). 5+ years supporting large, Cisco-centric enterprise networks and voice environments. Experience in regulated, client-service-oriented industries preferred. CCNA/CCNP (or equivalent demonstrated expertise); CCIE is a plus. Technical skills Strong grounding in routing/switching and network architecture: SD-WAN, QoS, BGP, EIGRP, and core TCP/IP. Hands-on with Cisco technologies: SD-WAN, Identity Services (ISE), Nexus (NX-OS), Catalyst 9K/9400 series. Security and cloud networking exposure: next‑gen firewalls (e.g., Palo Alto), secure access (e.g., Prisma Access), major cloud networking (e.g., Azure). Scripting/automation familiarity: Linux and Ansible for network automation a plus. Proficiency with Windows environments and productivity tooling. Problem solving Ability to analyze complex issues, introduce fit-for-purpose solutions (technology or process), and drive to resolution. Experience balancing standardization with practical constraints in dynamic environments. Communication Translate complex technical topics for non-technical stakeholders; create clear reports, runbooks, and procedure docs. Confident presenting to managers, partners, and broader audiences. Professionalism Detail-oriented, discreet, and client-focused; comfortable in high-energy, fast-changing settings. Strong prioritization and time management across multiple concurrent initiatives. Why this role High ownership across a modern, global Cisco ecosystem Blend of architecture, implementation, and operations Opportunity to raise the bar on reliability, security, and automation

The Network Engineer's role is to ensure stability, integrity, and efficient operation by monitoring, maintaining, supporting, and optimizing all networked software and associated operating systems. Like the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description. The Network Engineer will apply proven communication, analytical, and problem-solving skills to help identify, communicate, and resolve issues with multiprotocol routers, multilayer switches, network security devices, and network management systems. xevrcyc This Network Engineer will also mentor and provide guidance to the Systems Engineer staff.

Travel: Up to 10% (site upgrades, maintenance, turn-ups) Team: Technology Services - Network Engineering Employment Type: Full-Time We are seeking an experienced and highly skilled Senior Network Engineer to join our Technology Services team at an award-winning organization with a global presence that has been recognized multiple times as one of the Best Places to Work. This role is well suited for a seasoned professional who thrives in a hands-on environment and takes ownership of implementing, maintaining, and optimizing modern enterprise network infrastructure. In this position, you will design, deploy, and support enterprise-grade network and security systems, including next-generation firewalls, campus switching, and enterprise wireless environments. Your expertise will directly impact network reliability, performance, and security through strong architectural design, automation, and disciplined change management practices across a dynamic, multi-site environment. This senior-level role requires deep technical expertise in networking and network security, with particular emphasis on Palo Alto Networks firewalls and Cisco/Meraki wired and wireless technologies, within a collaborative, high-performance culture that values innovation, technical excellence, and long-term career growth. Core Tools & Technologies Vendors / Operating Systems: Palo Alto Networks (PAN-OS, Panorama) Cisco (IOS) Meraki SonicWall (SonicOS, NSM) Ruckus Protocols & Networking Concepts: BGP, STP, LACP VLANs, Inter-VLAN Routing 802.1X (EAP) IPsec & SSL VPN QoS, DNS/DHCP, NAT, IPv6 EtherChannel, MC-LAGG / vPC Security Capabilities: Malware Prevention, Anti-Spyware, Antivirus Vulnerability Protection, File Blocking, Data Filtering DNS Security, DoS/DDoS & Zone Protection Micro-Segmentation / ACLs Zero Trust Networking (ZTNA) Key Responsibilities Network Implementation: Design, configure, and deploy LAN, WAN, and wireless networks, including switches, firewalls, access points, and supporting hardware and software. Wired & Wireless Network Management: Own the lifecycle of Cisco switching and Meraki wireless environments, including deployment, configuration, tuning, monitoring, and capacity planning. Troubleshooting & Performance: Act as a senior escalation point for network-related issues, performing advanced troubleshooting and root cause analysis (RCA) to maintain availability and performance. Firewall & Network Security: Manage and support Palo Alto Networks NGFWs and Panorama, implementing security policies, NAT rules, segmentation strategies, and threat prevention best practices. Documentation & Collaboration: Maintain accurate network documentation and collaborate cross-functionally to deliver projects, implement changes, and resolve issues effectively. Mandatory Qualifications (in order of importance) Cisco & Meraki Expertise Extensive hands-on experience with Cisco IOS switches and Meraki switches and access points. Deep experience designing, deploying, and operating Meraki MR wireless environments, including Dashboard administration, RF optimization, and 802.1X authentication. Strong mastery of enterprise networking fundamentals: VLANs, trunking, STP, inter-VLAN routing, LACP/EtherChannel, MC-LAGG/vPC, DHCP Snooping, and BPDU Guard. 7-10+ years of experience configuring and troubleshooting enterprise wired and wireless networks. Advanced Troubleshooting Skills Proven ability to diagnose complex network issues using tools such as Wireshark/TCPDump, ping, and traceroute. Strong preference for candidates with CCNP- or CCIE-level troubleshooting expertise, particularly in wireless environments. Demonstrated experience troubleshooting NGFW policies and advanced security features, including URL Filtering, DNS Security, Threat Prevention, Data Filtering, App-ID, and User-ID. Communication Skills Excellent written and verbal communication skills. Ability to clearly explain complex technical concepts to both technical stakeholders and non-technical audiences, including leadership. Palo Alto Networks Expertise Proven hands-on experience configuring, managing, and troubleshooting Palo Alto Networks NGFWs and Panorama. Strong knowledge of high availability (HA), device groups, templates, and best-practice implementation of full NGFW feature sets. 3-5+ years of experience operating Palo Alto Networks firewall environments. Desired Qualifications Certifications: Cisco Certified Network Professional (CCNP) Palo Alto Networks Certified Network Security Engineer (PCNSE) Additional Technical Experience: Familiarity with SonicWall firewalls and/or Ruckus wireless systems. Strong understanding of BGP, route maps, and route redistribution. Experience with Palo Alto Advanced Routing Engine (ARE) and multi-virtual router designs. Hands-on experience with 802.1X, RADIUS, PKI, DNS, and related services. Exposure to network automation and infrastructure-as-code tools such as Ansible, Terraform, Jinja2, and PAN-OS APIs. Why Join This Team You will be part of a small, high-impact engineering team responsible for mission-critical network and security infrastructure across multiple sites. This role provides the opportunity to work with modern technologies, influence architectural standards, and contribute to a secure, scalable, and high-performing enterprise network environment.

What this Job Entails: The Network Deployment Engineer II will design, develop, build and test systems and products based on optic, photonic and laser technologies. The position will interact with device, hardware and software design teams to assist in overall development of optical systems. The position will be responsible for specifying, selecting and qualifying active and passive optical components. The role will also assist with developing and benchmarking system performance models, developing and assisting with implementing test procedures and/or evaluating and selecting appropriate test instrumentation. Scope: Applies company policies and procedures to resolve a variety of issues Works on problems of moderate scope Receives general instructions on routine work and detailed instructions on new projects Your Roles and Responsibilities: Deploy, configure, and support a large-scale production and corporate network and server infrastructure in data centers and Point of Presence (POP) sites throughout the assigned region Calculate and document equipment power requirements and work with Engineering, Facilities Operations, and/or collocation vendors to meet these requirements Participate in project timelines to support network turn-up within expected completion intervals Responsible for asset management of networking gear in datacenter and POP sites Proactively contribute to documentation, automation and processes as they evolve Create network and server rack face elevations, floor plans, wiring diagrams, and detailed port maps for new deployments and documentation Create statements of work for vendors at the POP sites Prepare cage and rack designs, and understand the overall needs of POP infrastructure Document and follow RMA processes and procedures for all relevant vendors Follow, improve, and implement data center and POP best practices Provide necessary escalations to higher support tier; assist Sales and Customer Support with technical operations, and work with internal departments to ensure customer satisfaction Work closely with Network Engineering, Logistics, and equipment vendors as new equipment and technologies are integrated into the production network Use internal tools and scripts to configure, monitor, and repair servers and network equipment Detect and diagnose various error/failure conditions across an array of server types Other duties as required. This list is not meant to be a comprehensive inventory of all responsibilities assigned to this position Required Qualifications/Skills: Bachelor's degree (B.S/B.A) from four-college or university and 2 to 5 years' related experience and/or training; or equivalent combination of education and experience Builds productive internal and external working relationships Exercises judgment within defined procedures and practices to determine appropriate action Must have an understanding of data center network architecture and common issues related to data center networks Knowledgeable in data center practices (i.e. cable routing, calculating power usage and cooling) Experience with field-based work in POPs, carrier hotels, or central office environments Experience with enterprise and service provider network hardware platforms and architectures, including data center switching platforms Must have a sound and in-depth understanding of IP technologies such as MPLS, BGP, RSVP-TE, IS-IS Basic understanding of transmission technology and circuit troubleshooting techniques Solid understanding of fiber-optic technology including cable types, connector types, optic types, patch panels, and optical transport technologies Proficiency in various operating systems Ability to capture and analyze traffic Solid understanding of queue management for tasks and incidents, vendor engagement, and escalation and participation in ongoing POPs deployment projects Demonstrated ability to analyze complex situations and utilize troubleshooting skills, systems and tools, and creative problem solving abilities under pressure Excellent communication skills Experience in dealing with service providers and colocation facilities around the world Ability to work within a global team in a fast-paced and dynamic environment with limited supervision Strong attention to detail with excellent time management and organization skills 20% to 50% of travel required Preferred Qualifications: Understanding of various scripting languages is strongly desired Certification such as CCNA, JNCIA, RHCT, or equivalent experience Physical Demand & Work Environment: Must have the ability to lift/move 30-40 lbs. Must have the ability to perform office-related tasks which may include prolonged sitting or standing Must have the ability to move from place to place within an office environment Must be able to use a computer Must have the ability to communicate effectively Some positions may require occasional repetitive motion or movements of the wrists, hands, and/or fingers

The selected candidate will be responsible for the following: Support the ITP network infrastructure, perform all routine maintenance activities, provide guidance on upgrades and system recapitalization, perform availability/capacity management. Oversee High Speed Guard Cross Domain solution that supports the transfer of data between multiple classification domains. Support all documentation to effectively capture the configuration baseline. Design and support system recapitalization plans to account for capacity growth and changes as directed by the customer. Serve as the subject matter expert on all ITP network infrastructure. Basic Qualifications: Bachelors degree and (12)+ years of prior relevant experience or Masters with (10)+ years of prior relevant experience Prior leadership responsibilities Excellent written and oral communication skills Experienced and adept at developing and maintaining technical documents, analyses, and reports Experienced with preparing and presenting briefings to senior customer management, and customer stakeholders Working knowledge of defense-in-depth principles, network/HW/SW security architecture, network topology, IT device integrity, and common security elements Active Top Secret government security clearance; ability to obtain DHS EOD SCI Preferred Qualifications: Master's degree from an accredited college or university in IT Management, Engineering, or related field Proven experience (10+ years) in IT service delivery management Experience with User Activity Monitoring products and platforms Experience with Everfox High Speed Guard Platform Experience with Cisco, Juniper LAN/WAN network infrastructure Experience with Palo Alto Firewalls DHS Cleared preferred CCNP or Higher ForcePoint/FirePower Experience

Harmonia Holdings Group, LLC is an award-winning, rapidly growing federal government contractor committed to providing innovative, high-performing solutions to our government clients and focused on fostering a workplace that encourages growth, initiative, creativity, and employee satisfaction. SME Network Engineer Location: Lorton, VA (22079) Citizenship: U.S. Citizen (required for access to DHS IT systems) Clearance: Must be able to obtain and maintain DHS/ICE Fitness Determination (Public Trust), including a favorable preliminary Fitness and full NBIS eAPP investigation (SF-85P, OF-306, SSA-89, fingerprints, PREA questionnaire if required) Schedule: Full-time; business hours (7:00-5:30, M-F) with required 24/7 on-call availability Hybrid Work: Lorton, VA roles may telework up to 2 days per week; 3 days onsite required (subject to mission needs) Travel: Occasional CONUS travel; local travel within 50 miles is not reimbursable Role Overview Harmonia Holdings Group is seeking an experienced SME Network Engineer to support DHS ICE Homeland Security Investigations (HSI) Title III and Linguists Unit (T3LU) under the CALEA program. This role provides hands-on leadership across all network engineering functions, including architecture, routing, switching, firewall engineering, VPN and PKI integration, segmentation design, troubleshooting, and IA/accreditation-grade documentation. The SME ensures the integrity, resilience, and performance of mission-critical CALEA networks and collaborates closely with Systems, Virtualization, Storage, and Field Engineering teams to ensure end-to-end operational success. This position supports DHS's mission while contributing to Harmonia's overarching goals: delivering premier technology services, driving mission-focused innovation, sustaining organizational excellence, and being an employer of choice for skilled professionals. Responsibilities Network Architecture & Design Design, document, and maintain CALEA network architecture, including: Layer 2/Layer 3 topology IP address schema and subnetting VLAN/VRF segmentation Routing design (OSPF, BGP, EIGRP, static routing) Firewall zoning, NAT policies, and security segmentation VPN tunnels, encrypted transport paths, and PKI integrations COOP/DR network routing and failover paths Produce and maintain authoritative network diagrams, data flows, trust boundaries, and configuration baselines. Evaluate, recommend, and implement enhancements to improve security, availability, and performance. Network Operations & Troubleshooting Serve as the primary network engineer for diagnosing, resolving, and preventing outages across the CALEA enterprise. Perform packet-level analysis (Wireshark/tcpdump), flow analysis, and log correlation to identify and remediate issues. Lead network upgrades, configuration changes, ACL/policy adjustments, and planned maintenance. Monitor network performance and availability; tune routing, firewall, and VPN parameters as needed. Firewall, Security & Accreditation Support Engineer and maintain firewall policies and segmentation (Palo Alto preferred; Fortinet/Cisco ASA experience acceptable). Support security hardening, vulnerability remediation, and IA/ATO documentation requirements. Produce accreditation-ready artifacts, including boundary diagrams, data-flow representations, rule documentation, and enclave segmentation maps. Collaborate with ISSO and security teams to address findings and strengthen compliance posture. Interoperability & Cross-Domain Integration Document and support network dependencies across Active Directory, DNS/DHCP, VMware/vSphere, SAN/iSCSI/NFS storage, and application tiers. Validate end-to-end system functionality after network changes. Partner with Systems, Virtualization, Storage, and Field SMEs to maintain seamless operations across CALEA sites. COOP/DR & Lab Engineering Contribute to COOP/DR planning, design, and testing to ensure high availability and rapid failover capabilities. Support lab environment setup for replication, patch validation, and network simulation. Documentation & Mission Coordination Maintain technical documentation, diagrams, IP plans, SOPs, and configuration repositories. Coordinate with Harmonia and ICE technical leads to resolve issues, support field operations, and sustain mission readiness. Required Qualifications Bachelor's degree in IT, Engineering, or related field OR +5 years equivalent experience. 10+ years of enterprise network engineering experience with increasing responsibility. Technical Proficiency Deep hands-on experience with: Cisco routing/switching (3k-9k platforms) Palo Alto or Fortinet firewalls and policy design VPN architecture, IPsec tunneling, PKI integration Network segmentation using VLANs, VRFs, and security zones Packet capture and analysis Network monitoring and telemetry tools (SolarWinds, NetFlow, Splunk, etc.) Demonstrated ability to produce complete network diagrams and architecture documentation based solely on device configuration, logs, and analysis. Strong understanding of cross-domain interactions (DNS, AD, VMware networking, SAN connectivity). Preferred Certifications CCNA, CCNP Enterprise, or CCNP Security PCNSE Fortinet NSE4/NSE5 CCIE-level competency (or equivalent expertise) Additional certifications may be required after hire and must be obtained within designated timelines. Professional Competencies Excellent communication skills with both technical and non-technical stakeholders. Proven ability to work independently in high-pressure, mission-critical environments. Strong analytical, investigative, and documentation skills. Preferred Experience Experience supporting federal law enforcement IT systems or CALEA-aligned mission operations. Hands-on participation in COOP/DR architecture or failover site execution. Experience with VPN transitions, network segmentation, and multi-site resiliency. Familiarity with Kubernetes/container environments (e.g., JSI platforms). Experience supporting 24/7 high-availability operations. Soft Skills Strong initiative and attention to detail. Adaptability to evolving mission requirements and operational tempo. Collaborative approach with technical teams, vendors, and government partners. Alignment with Harmonia's principles of excellence, collaboration, curiosity, and integrity. Physical Demands / Work Environment Must regularly lift/move up to 50 lbs.; occasionally up to 80 lbs. using a hand truck or lift cart. Requires standing, kneeling, crouching, and navigating server-room environments. Normal vision and hearing required; moderate server-room noise.

Hybrid - remote allowed, but should live in driving proximity to Springfield, VA Travel: up to 25 percent mostly to Chicago and Atlanta** Direct Hire with Benefits In this role you will guide the security direction for a hybrid environment that spans on premises systems and cloud platforms including Microsoft Dynamics Microsoft 365 Azure directory and the Microsoft security ecosystem. You will also work hands on with firewalls support multi-site network uptime document standards train users and collaborate closely with software and security vendors. This position requires someone who enjoys being the subject matter expert who can see the big picture while also building and improving day to day systems. What you will do Lead security operations including assessment mitigation and incident response Support and maintain the network across multiple facilities with a focus on reliability and resilience Plan and implement architecture improvements for both on premises and cloud based environments Work with business and software vendors to evaluate tools resolve issues and drive enhancements Develop and maintain documentation playbooks and standards for network and security operations Provide user training on security best practices and new technologies Drive continuous improvement by exploring and recommending modern solutions What we are looking for Five or more years of hands on experience in security engineering or network security Experience supporting hybrid environments on premises and cloud Strong familiarity with Microsoft based ecosystems including Dynamics M365 Azure directory Sentinel Defender P2 and E5 Background working with firewalls pfsense or similar Ability to design troubleshoot and document network architectures Experience responding to security events and closing security gaps Comfort interacting with external vendors and internal teams Clear communication skills solid documentation habits and a growth mindset Candidates must be based in Virginia and open to regional travel up to 25 percent If you enjoy being the trusted expert for both networking and security and want the freedom to influence modern solutions this role offers the autonomy and impact you are looking for.

IT/ System Engineer (Level 2, 2.5, or 3) - Managed Services | Columbia, MD Salary: $85,000-$120,000 + Benefits (dependent on level of experience) A growing Managed Service Provider (MSP) in Columbia, MD is seeking a System Engineer to serve as the top escalation point for their help desk. This is a client-facing, support-focused role where you'll handle advanced troubleshooting, mentor junior techs, and provide onsite support at client locations (~25% local travel). This position is ideal for an experienced engineer who thrives in a fast-paced MSP environment, enjoys solving complex technical issues, and values both technical depth and customer interaction. What You'll Do: Act as the highest-level escalation point for inbound tickets and calls Own tickets end-to-end, escalating to vendors only when necessary Troubleshoot across a wide range of technologies, from desktops to advanced networking and cloud Configure and manage client backups Mentor L1 and L2 engineers, setting standards for documentation and client communication Provide onsite support for escalations, upgrades, and client visits (~25%) Maintain documentation and time entries in Autotask (or similar PSA) Partner with leadership to address recurring issues and improve processes What You Bring: MSP industry experience is required Microsoft 365 (Exchange Online, Teams, SharePoint, OneDrive, Entra ID/Azure AD) Windows Server & Virtual Servers Networking & Security (SonicWall firewalls, HP switches, VLANs, VPNs, routing basics) Experience with Autotask (or similar PSA/RMM tools) Excellent communication skills; able to simplify technical concepts for non-technical users Proven ability to mentor and support junior engineers Reliable transportation for local client visits (~25%) Must pass background check and drug screen Compensation & Benefits: Salary: $85K-$120K Benefits: Medical, Dental, Vision (partial coverage) + 401(k) PTO: 2 weeks PTO + 1 week sick Mileage reimbursement: $0.70 per mile

This position requires an active TS/SCI security clearance in order to be considered; clearance sponsorship is not available. As a Systems Engineer, you'll collaborate with other engineers to define system requirements, architecture, and design, with the goal to make an impact across the federal government. In supporting the program, you will be required to work 5 days/ per week onsite in the client's Washington, DC location. What you'll do: Collaborate with other engineers to define system requirements, architecture, and design Collaborate closely with key stakeholder partners and IT team to evaluate customer requests for new systems, applications, product standards, and services. Work on the core platform to create and optimize all functions needed to establish a strong platform infrastructure. Perform risk assessments and develop mitigation strategies and ensure compliance with industry standards and regulations. Analyze and validate system designs against requirements and specifications. What you'll need to succeed: 8-10 years of experience as a Systems Engineer provisioning, installing, and supporting on-premise mission critical systems Experience maintaining and managing a on-premise VMWare infrastructure In-depth experience with Infrastructure as Code (IaC), containerization, Kubernetes, Ubuntu, and CI/CD Automation Experience working in a DevSecOps environment Ability to work well on a team as well as individually Ability to think out of the box to help with troubleshooting issues and providing innovative solutions that fit customers' needs Ability to establish and maintain a high level of client trust and confidence with your skills A Bachelor's Degree Active TS//SCI clearance What will make you stand out: Experience with system monitoring tools such as SolarWinds, Grafana, and Prometheus Expertise with container orchestration tools (Rancher, OpenShift, etc.) Experience hardening and securing containers Previous experience with commercial cloud (e.g., AWS, Azure) Passion for learning new development concepts, methodologies, and technologies Like we said, we are big fans of our people. That's why we offer a generous benefits package, professional growth, and valuable time to recharge. Learn more about our company culture code and benefits. Plus, check out our accolades. What we want you to know: In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification form upon hire. MetroStar Systems is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties, and skills required of personnel so classified. Furthermore, they do not establish a contract for employment and are subject to change at the discretion of MetroStar Systems. Not ready to apply now? Sign up to join our newsletter here. "EEO IS THE LAW MetroStar Systems, LLC (MetroStar) invites any employee and/or applicant to review the Company's Affirmative Action Plan. This plan is available for inspection upon request by emailing *******************."

A successful candidate will implement, provide, and monitor technical support of customer environments, conduct, and maintain inventories of client systems, support operating systems, desktop peripherals, software, core desktop applications and imaging of computers. The Network Specialist will have an in-depth knowledge of Cisco, Palo Alto, F5 and the maintenance of computer systems and computer environments. Requirements: Install, configure, maintain, and optimize LAN and WAN infrastructure, including routers, switches, VPN appliances, load balancers, and security devices. Ensure timely application of security patches to all network infrastructure devices, including routers, switches, voice and video systems, and security appliances. Monitor and analyze network performance using network management tools, troubleshooting network issues, and optimizing performance based on industry best practices. Maintain an up-to-date inventory of network assets, including hardware and software components, and ensure efficient asset tracking and lifecycle management. Provide design recommendations, technical feedback, and support during engineering meetings to contribute to the planning and execution of network projects. Manage data center network infrastructure, assist with storage and virtualization systems, and collaborate with relevant teams on infrastructure expansion and improvements. Stay informed of emerging technologies, trends, and best practices in communications, networking devices, and system security. Troubleshoot and resolve network-related problems and outages, including those affecting voice, video, and data services, schedule necessary network upgrades and optimizations. Demonstrate expertise in routing, switching, and firewall configuration, supporting complex and secure LAN/WAN networks. Understand and support Linux/Unix and Windows operating systems, including system security management, to ensure smooth integration with network services. Submit detailed and accurate reports on network performance, incidents, upgrades, and infrastructure status as required. Act as the primary point of contact for clients, addressing software and hardware-related inquiries and troubleshooting issues promptly. Actively participate in team meetings to share updates, ideas, and solutions; lead or assist in network or related projects, ensuring timely completion and adherence to objectives. Lead or assist in the execution of network or system-related projects, ensuring proper planning, coordination, and adherence to timelines. Implement and enforce security protocols for network infrastructure and systems to prevent unauthorized access, malware, and other security threats. Work with the team to plan and implement backup and disaster recovery solutions to ensure the resilience of network and data services. Collaborate with cross-functional teams to troubleshoot complex technical issues, ensuring swift resolution or escalation when necessary. Perform additional tasks and duties as assigned, contributing to the overall success and functioning of the team and organization. Critical Skills: Excellent customer service skills complemented by an ability to listen to and interpret client requests Cisco Router and switch configuration?(IOS/NX-OS) Palo Alto NextGen Firewall and VPN configuration experience Experience with General Dynamics Taclanes and/or GEMOne?? F5 Load Balancer Knowledge GTM/Big DNS Knowledge Technically proficient and experienced with Windows and Unix/Linux operating systems, network security, network traffic analysis, incident response, vulnerability analysis, packet analysis, and systems hardening. Possesses proficient knowledge of layer 2 switching and layer 3 routing protocols, encryption protocols, communication protocols. Examples include but not limited to: TLS/SSL, IPsec, SSH, BGP, VLAN, LLDP, LACP, ARP, 802.1x, DNS, AES, NTP, etc. Network Design and Implementation Network Troubleshooting Network Performance Tuning Ability to identify, track and complete tasks for multiple projects under prescribed timeframes. Non-Negotiable Requirements: Top Secret with investigation current within the last 5 years On-site, no remote Technical Environment: Microsoft, Linux, Splunk, Ansible, Tenable, GEMS A notification to prospective applicants that reviews, and tests for the absence of any illegal drug as defined in 10 CFR 707.4, will be conducted by the employer and a background investigation by the Federal government may be required to obtain an access authorization prior to employment, and that subsequent reinvestigations may be required. If the position is covered by the Counterintelligence Evaluation Program regulations at 10 CFR part 709, the announcement should also alert applicants that successful completion of a counterintelligence evaluation may include a counterintelligence-scope polygraph examination. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or protected veteran status, or any other legally protected basis, in accordance with applicable law. In compliance with federal law, all persons hired will be required to verify identity and eligibility to work in the United States and to complete the required employment eligibility verification document form upon hire.

The Systems Engineer IV provides advanced engineering support for cloud and on-premise infrastructure, with a primary focus on architecting, deploying, and maintaining AWS environments. This role collaborates closely with internal IT teams to enhance infrastructure reliability, automate provisioning, and support enterprise-level systems operations. Key Responsibilities Architect, engineer, configure, and deploy AWS and related infrastructure technologies using approved organizational standards. System Engineer IV Partner with Systems Operations to build self-service infrastructure provisioning, CI/CD delivery pipelines, logging tools, and monitoring services. System Engineer IV Maintain and update system documentation as needed. System Engineer IV Collaborate with IT Operations Engineers to install, configure, and support physical and virtual server environments. System Engineer IV Continuously monitor, troubleshoot, and improve infrastructure performance and stability. System Engineer IV Operate enterprise monitoring, alerting, backup, antivirus, anti-spam, and malware protection tools, as well as offsite storage and data-mirroring systems. System Engineer IV Core Competencies Forward-thinking and able to anticipate operational needs. System Engineer IV Strong critical thinking and analytical problem-solving skills. Demonstrates adaptability, openness to innovation, and change. Communicates effectively across multiple channels with emotional intelligence. Performance-focused, with the ability to set and meet clear goals. Customer-oriented with a commitment to service excellence. Committed to continuous learning and developing self and others. Collaborative mindset with the ability to work across teams and stakeholders. System Engineer IV Required Skills & Experience 7-10 years of directly related IT systems engineering or administration experience. System Engineer IV Strong AWS cloud architecture experience, including CLI usage. Expertise in Shell scripting (Shell, Perl, Python). Hands-on experience with Unix/Linux installation, administration, operations, and maintenance. Proficiency with Unix/Linux security tools, ports, protocols, routing, and switching in firewalled WAN environments. Extensive experience with AWS services such as ECS, EC2, API Gateway, S3, Lambda, etc. System Engineer IV Experience managing Public Cloud infrastructure environments. Advanced skills in designing, developing, and troubleshooting new and existing scripts. Experience operating in a mature enterprise IT environment. Preferred/Bonus Skills Experience with RHEL Satellite Server. Experience with Puppet configuration management. Familiarity with Atlassian tools (e.g., Jira, Confluence). System Engineer IV Education & Certifications Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent work experience of 8+ years). System Engineer IV AWS Certification preferred. System Engineer IV Experience Requirement A minimum of 10 years of total professional experience performing related duties in systems engineering or similar roles.

• Developing software according to software development lifecycles (SDLCs), including DevOps, Agile, Lean, or Iterative. • Designing, deploying, and migrating secure and maintainable systems for Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) environments. • Become part of a team responsible for building a cloud business platform within the Federal Reserve Board • Partner with the cloud platform team and development team to build, manage, and enable the underlying cloud infrastructure and platforms in support of the business application development project. Qualifications: • 10 years of experience in the field of technology including application development, 5 of which focused on supporting cloud technologies. • Proficient in at least one high-level programming language such as Python, PowerShell, or Infrastructure as Code (AWS CloudFormation, AWS CDK, Terraform, etc.). • Python 3.x data engineering with pandas, Databricks, or SPARK preferred. • DevOps, CI/CD pipelines and automation, containers, and related best practices for cloud deployment. • Experience with GitLab or Azure DevOps preferred. • Experience with containerization as a strategy for cloud-enabling legacy applications such as Docker and Kubernetes (AWS EKS, ECS, or Fargate preferred) Include with resume submissions: • Resume including work experience for last ten (10) years.

SpaceNav is seeking a talented Systems Engineer to join our team. This full-time position will be based on-site at the NOAA Satellite Operations Facility located in Suitland, MD, and will support NOAA's Office of Space Commerce (OSC) in developing the Traffic Coordination System for Space (TraCSS). As a TraCSS Systems Engineer, you will be responsible for defining and managing TraCSS system requirements, anticipating future needs for the TraCSS system, and assessing SSA software vendors. A strong foundation in mathematics and engineering is required, along with a deep understanding of the mathematical principles underpinning key astrodynamics and SSA concepts - such as orbit determination, covariance realism, maneuver planning, and conjunction assessment. Responsibilities Manage the set of TraCSS system and software requirements Develop operational user scenarios and test cases that will be used in product validation and operational acceptance testing. Work with the Office of Space Commerce staff to evaluate, test, and onboard third-party SSA data products and services. Coordinate with DoD personnel, satellite operators, and other mission stakeholders in support of the SSA mission. Participate in technical discussions between government agencies and industry. Qualifications US citizenship required. Bachelor's degree in aerospace engineering, physics, mathematics, or related field. 2+ years of relevant work experience in satellite operations. Familiarity with cloud computing technologies. Experience with software development lifecycle and agile methodologies. The salary range for this role is $100,000 - $120,000 per year.