Network engineer jobs in Illinois

Your Work Shapes the World at Caterpillar Inc. When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. As a Data Center Network Engineer, you will contribute to the success of Caterpillar's state-of-the-art data center network architecture and network solutions. In this role, you will be part of a team responsible for the complete lifecycle of the Data Center Network. This includes planning, creating design solutions, deploying, and monitoring to ensure the Data Center Network operates at maximum reliability, scalability, and efficiency. What You Will Do: * Design, document, deploy, and manage Data Center Network solutions through all phases of lifecycle management for Cisco ACI & Nexus equipment and Radware Load Balancers deployed at enterprise hosting locations and local facilities. * Support infrastructure and deployment projects across multiple regions and locations. * Partner with hardware, software, and vendor teams on the development of data center solutions. * Provide project participation, advice, and counsel to IT personnel, management, and project teams on various aspects of enterprise Data Center Network hardware and software. * Establish and implement global security and operational best practices and adhere to IT Controls. * Adhere to IT Service Management processes, instruction, and procedural documentation. * Work with application support teams/customer/operations management to develop plans to minimize the technical and/or business impact of network environment changes. * Participate in an on-call rotation to support the global datacenter network infrastructure 24x7. * Monitor, troubleshoot and resolve complex problems within the enterprise Data Center networks. What You Have: * Problem Solving: Extensive knowledge of approaches, tools, techniques for recognizing, anticipating, and resolving organizational, operational or process problems; ability to apply knowledge of problem solving appropriately to diverse situations. * Technical Troubleshooting: Extensive knowledge of technical troubleshooting approaches, tools and techniques; ability to anticipate, recognize, and resolve technical issues on Data Center and Networking Hardware * Technical Excellence: Knowledge of a given technology and various application methods; ability to develop and provide solutions to significant technical challenges. * Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of data center and networking projects. * System Testing: Knowledge of network, system and software testing; ability to design, plan and execute system testing strategies and tactics to ensure the quality of software at all stages of the system life cycle. * Technical Writing/Documentation: Knowledge of technical writing; ability to write technical documents such as manuals, reports, guidelines or documents on standards, processes and applications. Top Candidates Will Also Have: * Bachelor's degree in Computer Science, Computer Engineering, or related field. * Three to six years of experience designing, deploying, and operating large-scale networks. * Cisco Certified Network Associate (CCNA) or equivalent. * Strong communication, teamwork, analytical, interpersonal, and customer service skills * Ability to communicate service interruptions is critical; management and impacted customer base must be aware of the situation and anticipated recovery time. * Experience working on multiple projects simultaneously and delivering against deadlines in a complex global environment. * Hands-on experience with the following: * Cisco Nexus Network Switches and NX-OS * Cisco Application Centric Infrastructure (ACI) * Application Delivery Controller (Network Load Balancer) * Radware Alteon Additional Info: * The ideal location for this role is East Peoria-IL, Nashville-TN, Irving-TX * This position may require 10% travel. About Caterpillar - Caterpillar Inc. is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we've been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed. Summary Pay Range: $95,640.00 - $155,400.00 Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar. Benefits: Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits. * Medical, dental, and vision benefits* * Paid time off plan (Vacation, Holidays, Volunteer, etc.)* * 401(k) savings plans* * Health Savings Account (HSA)* * Flexible Spending Accounts (FSAs)* * Health Lifestyle Programs* * Employee Assistance Program* * Voluntary Benefits and Employee Discounts* * Career Development* * Incentive bonus* * Disability benefits * Life Insurance * Parental leave * Adoption benefits * Tuition Reimbursement * These benefits also apply to part-time employees This position requires working onsite five days a week. Relocation is available for this position. Visa Sponsorship is not available for this position. This employer is not currently hiring foreign national applicants that require or will require sponsorship tied to a specific employer, such as, H, L, TN, F, J, E, O. As a global company, Caterpillar offers many job opportunities outside of the U.S which can be found through our employment website at **************************** Posting Dates: December 8, 2025 - December 21, 2025 Any offer of employment is conditioned upon the successful completion of a drug screen. Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply. Not ready to apply? Join our Talent Community.

Job Details Scott Air Force Base - Scott AFB, IL Full Time 4 Year Degree $90000.00 - $150000.00 Salary/year Description FEDITC, LLC is a fast-growing business supporting DoD and other intelligence agencies worldwide. FEDITC develops mission critical national security systems throughout the world directly supporting the Warfighter, DoD Leadership, & the country. We are proud & honored to provide these services. Overview of position: FEDITC is seeking a Network Engineer III to work on-site at Scott AFB. Shall provide network analysis and design services to engineer, evaluate, and recommend new technologies to meet requirements and optimize network/system performance. A Secret clearance and be a US citizen to be considered for the position. Responsibilities: Responsible for enterprise network designs, solutions, installation, configuration, operations, and maintenance of a variety of network equipment and architectures. (i.e. Network analysis and design, system integration. Responsible for troubleshooting, testing, scripting, TCP/IPv4/6, Ethernet, ISDN/BRI/PRI, commercial SATCOM, and various other communications and network protocols, VLANs, VPN.) Maintains data encryption, network management, information systems/network security, routers, switches, TCP accelerators, VoIP devices, Voice Exchange Appliances, firewalls, Windows and Linux/Unix servers, virtualized environments (VMWare). Qualifications Equipment/Tool Familiarity: Cisco routers and switches Sonus/Ribbon VX appliances (SHOUT) General Dynamics TACLANE KG 175 series Palo Alto Cisco voice technologies - Cisco CUCM/Cisco CUBE/Call manager express Network monitoring and auditing - Splunk/Solar winds Cisco WAAS data accelerators VPN's, Sourcefire network defense sensors, Intrusion Prevention system, VMWare servers Cisco Identity Services Engine (ISE) Spectra com Secure Sync (NTP Servers) Technical Skills: Experience with complex hub and spoke networks (DMVPN, P2P Tunnels) Routing protocols - BGP/OSPF/EIGRP MPLS familiarity and concepts - L3VPN/L2VPN Encryption - IPSEC Tunnels Ability to document and diagram network architectures Voice protocols - SIP/RTP Network design Desired - Experience with network automation - Python/Ansible/Nornir Education: BA/BS+ 7 years of experience Certifications: CCNP Required IAT II certification required Desired: CCIE, CISSP, Palo Alto certifications, Cisco voice/security certifications Clearance: A Secret clearance and U.S. Citizenship are required to be considered for the position. FEDITC, LLC. provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex (including pregnancy), sexual orientation, gender identity or expression, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. FEDITC, LLC. complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities Benefits: Medical Dental Vision 401K Paid Time Off (PTO) Life and Disability Insurance Employee Assistance Program Flexible Spending Accounts (FSA) Dependent Care Reimbursement Program Group Term Life Insurance Supplemental Life and A&D Insurance Short & Long Term Disability Life Discount Program

Established in 1991, Collabera has been a leader in IT staffing for over 22 years and is one of the largest diversity IT staffing firms in the industry. As a half a billion dollar IT company, with more than 9,000 professionals across 30+ offices, Collabera offers comprehensive, cost-effective IT staffing & IT Services. We provide services to Fortune 500 and mid-size companies to meet their talent needs with high quality IT resources through Staff Augmentation, Global Talent Management, Value Added Services through CLASS (Competency Leveraged Advanced Staffing & Solutions) Permanent Placement Services and Vendor Management Programs. Collabera recognizes true potential of human capital and provides people the right opportunities for growth and professional excellence. Job Description Spanish Speaking experience is must A minimum of 3 years experience in a high technology network, systems administration position, specializing in communications systems and technology (such as IP, TDM or radio) Ability to obtain necessary security clearance as required by government contract Strong troubleshooting, problem-solving and analytical skills, with Wireshark and Putty a plus Experience with IP Routing and Switching required Information Security theory and best practices Firewall, WAN, LAN, and Router Architecture and configuration Communication networks and RF Trunking system knowledge Knowledge of protocols (TCP/IP, OSPF, Frame Relay, PPP, etc.) General working knowledge of Windows Server, Active Directory, UNIX, Linux, VMware Experience in providing technical support to remote customers Knowledge of VoIP and IP telephony Qualifications Spanish experience is must Firewall, WAN, LAN, and Router Architecture and configuration Additional Information If you want to apply and want to know more, please contact: Vipul Sannad ***************************** ************

Connection Services is seeking a Lead Network Engineer / Architect to join our Technical Staffing Division for a contract opportunity onsite in Niles, IL. This is a contract opportunity with benefits. We are seeking a highly skilled Lead Network Engineer / Architect to design, implement, and manage a global enterprise network infrastructure centered around Cisco technologies. The ideal candidate will demonstrate a balance of technical depth, strategic vision, and leadership, ensuring a secure, scalable, and high-performing network environment that supports global business operations. What We Do We calm the confusion of IT by guiding the connection between people and technology. If a customer is looking for a better way to manage their warehouse inventory, equip their workforce, or secure their data, we make it happen. All it takes is finding the right combination of tech hardware, software, cloud solutions, and support services. That's what we do. We're the IT Department's IT Department. Who We Are Our team is made stronger by a multitude of backgrounds, experiences, and perspectives. It's what makes Connection unique-what drives us to innovate and create technology solutions that stand apart from the crowd. We'd love for you to be a part of that fabric, to share your ideas and experiences with a team that thrives on fresh thinking, creativity, and helping others. Why You Should Join Us You'll find supportive teammates and a rewarding career at Connection-plus great benefits. We take pride in supporting employees with a total rewards package that provides financial, emotional, and physical resources for you and your family. Our compensation, 401k plans, medical insurance, and other benefits are progressive and competitive. We value the importance of our employees' emotional wellbeing. To support employees, we provide free therapy visits, mental health coaching and tools, and meditation resources. You'll also enjoy a generous paid time off package that includes not only vacation and sick time, but also Wellness and Volunteer Time Off days. Applicants must be authorized to work for any employer in the U.S. We are unable to sponsor or take over sponsorship of an employment visa at this time. Responsibilities Lead the architecture, design, and deployment of Cisco enterprise network solutions, including routers, switches, and firewalls (IOS, NX-OS, ASA/FTD). Architect and administer Cisco Meraki environments across MX, MS, and MR platforms, with a focus on SD-WAN design, policy enforcement, and cloud-based management. Design and integrate Cisco Identity Services Engine (ISE) for advanced authentication, authorization, and accounting across wired and wireless infrastructures. Manage and optimize Cisco Umbrella and other cloud-delivered security platforms to enhance enterprise protection and compliance. Oversee Cisco Unified Communications Manager (CUCM) systems, ensuring performance, resiliency, and seamless VoIP operations. Perform complex troubleshooting, packet analysis, and root cause diagnostics to maintain optimal uptime and reliability. Collaborate with cross-functional teams to execute infrastructure modernization, migration, and network upgrade projects. Maintain comprehensive network documentation, topology diagrams, and configuration standards. Provide technical mentorship to junior engineers and contribute to architectural roadmaps and best practices. Enforce network and security compliance standards across all environments. Min USD $69.00/Hr. Max USD $83.00/Hr. Qualifications Required Skills & Qualifications: 8+ years of progressive experience in enterprise network engineering and architecture. Expert-level knowledge of Cisco IOS, NX-OS, ASA/FTD, and Meraki platforms. Proven hands-on experience with Cisco ISE (policy creation, profiling, AD/LDAP integration). Strong understanding of Cisco Umbrella and cloud security models. In-depth experience with CUCM, VoIP, and unified communications. Proficiency in routing and switching protocols (BGP, OSPF, EIGRP, VLANs, STP, Layer 2/3). Familiarity with network performance monitoring tools (SolarWinds, NetFlow, etc.). Relevant Cisco certifications such as CCNP or CCIE strongly preferred. Excellent analytical, communication, and documentation abilities. Preferred Qualifications: Experience with network automation and scripting (Python, Ansible). Exposure to cloud networking (AWS, Azure). Familiarity with SD-Access, Software-Defined Networking (SDN), and modern enterprise architectures. Understanding of ITIL frameworks and change management processes

Description Impact is a leading national managed services provider, specializing in: IT & Cloud, Cybersecurity, Digital Transformation & AI, Integrated Marketing, and Print & Document Management. Our partnerships are defined by thoughtful business strategy, solutions architecture, technology deployment, and ongoing support -with a driving focus to bring enterprise-level resources to the SMB and midmarket. We are committed to customer-centric excellence, delivering tailored solutions that enhance client value and drive sustainable growth. Join our team of experts and be part of an innovative culture that puts customers at the heart of everything we do. Overview The TOC Network Engineer will be part of the Impact Networking MIT organization under Service Operations and will provide world-class customer support and technical expertise for Impact Networking customer environments. Customer support will center around network issues following Impact's incident, request, and change management processes. Experience in IT support, effective team participation, as well as a demonstrated ability to understand customer needs, drive business practices, and work collaboratively in a fast-paced, dynamic environment where customer service skills are utilized daily are expected. The ideal candidate will be expected to: analyze Core and LAN/WAN systems to determine existing and available capacity; prepare reports communicating available capacity to stakeholders; design and execute capacity and life-cycle augmentation projects; maintain and update network documentation and diagrams, and prepare business proposals in support of capacity and life-cycle augmentation recommendations in conjunction with a Technical Account Manager if one exists on the customer account; and identify root cause for core level crisis events and provide potential short/long term preventive actions in a timely manner using retroactive, reactive, and proactive means. Watch the video below to learn more about our Managed IT division! 💻 How Impact's MIT and Cloud Solutions Help Businesses Responsibilities Provide world-class customer support and technical expertise for Impact Networking customer environments Manage network incidents through to service restoration, resolution, and closure. Engage customers, additional internal teams, and external vendors as required Handle layer 1-3 incidents, change orders, and service requests with routers, switches, firewalls, load balancers, and DNS Customer and core infrastructure monitoring: Learn alarm management platforms, functions, and terminology Verify validity of alarms and follow troubleshooting procedures as outlined Work with remote locations on verification and resolution of alarms Follow outlined procedures for customer notification, escalation, and technical network interfaces, building familiarity with the client base (customer intimacy) Review network requirements and engineering concerns associated with customer requests such as equipment configuration, and operational impact Perform network configuration changes, root cause analyses, and proactive measures to address chronic and emerging network problems Act as a technical training resource and escalation point for peers and internal teams while maintaining accurate technical documentation and network diagrams Review logs and performance reports to identify potential problems and take proactive measures to mitigate them Maintain technical expertise and required industry certifications and stay current with new and emerging networking technologies Things We Are Looking For Minimum of 3 years of industry experience in a production support role for an enterprise or managed service provider (MSP) environment Solid operational support experience and technical troubleshooting skills Working knowledge of routing protocols including BGP4, OSPF, ISIS and knowledge of the Internet concepts and routing architectures is required Working knowledge of spanning tree and layer two switching concepts is required Demonstrated experience: ITIL and Service Management, preferred Experience with N-Able RMM, preferred Knowledge of HaloPSA Platform, preferred Proficiency with documentation management platforms Must have working knowledge of event and incident management systems including support for Incident, Change, and Request for Information requirements Strong communication skills and customer-service focus Excellent time-management skills Excellent writing and verbal communications skills Ability to communicate and work directly with customers to identify and resolve technical issues Ability to execute sound judgment and take initiative Ability to work under pressure and manage multiple priorities Desirable Education/Certifications Cisco Certified Network Associate (CCNA) or Cisco Meraki Network Associate (CMNA) preferred Microsoft Certified: Azure Network Engineer Associate CompTIA Network+ CompTIA Security+ Working knowledge of load balancing, routers/routing protocols, firewalls, switches, and DNS. Bachelor's degree in business management, Computer Science, or equivalent work experience Why Join Us? Our purpose is people. We empower them to innovate, grow, and succeed. That's how we change the world - one person, one company, one community at a time. At the heart of everything we do are our core values, which guide how we work, grow, and succeed together: Innovation: We embrace change because innovation lives outside the comfort zone. Passion: We are driven by purpose, fueled by passion, and obsessed with making an impact. Honesty: We are fiercely transparent and consistently honest. Fun: We fuel work with fun, knowing life's too short for boring. Low Ego: We champion ideas over titles, because brilliance knows no rank. One Team: We win as a team, we lose as a team, we are one team. Benefits Up to 20 days of PTO Up to 7 Paid Sick Days 12+ paid holidays Paid Parental Leave Comprehensive Health, Disability Life, Dental and Vision Plans 401(K) & retirement plans Tenure incentives at 5- (Tiffany & Co. Gift Card), 10- (Rolex watch), and 20- ($20,000 check) year mark(s) Continued education reimbursement On-going training & development opportunities The wage range for this role takes into account the wide range of factors that are considered in making compensation decisions including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs. At Impact, compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current salary range is $80,000-$100,000. Join us at Impact, where your ideas matter, your growth is supported, and your work creates real change. Let's build something incredible together! #LI-Onsite

Who we are: At the United Center, we bring excitement to life through sports, entertainment, and community. Home to the Chicago Bulls (NBA) and Chicago Blackhawks (NHL), we've welcomed over 70 million fans and host more than 200 events annually, from premier sporting events and concerts to family shows and special industry events. In the role as Information Security Analyst I you will help our team bring the next round of stories to life on the United Center campus. Ready to take center stage? The Network Engineer II will manage a complex campus network encompassing broadcast-focused LAN, WAN, wireless, and security systems. In this role, you will ensure reliable connectivity for live productions and events while supporting all broadcast network operations. You will also collaborate with the Event Support Group to seamlessly integrate network and broadcast infrastructure for major events. What you'll do: Manage the design, installation, configuration and maintenance of all network switching, routing, wireless hardware, and remote connectivity, ensuring both broadcast and IT security. Provide real-time troubleshooting for live sports broadcasts and ensure seamless video-over-IP transmission workflows. Monitor and diagnose performance issues across broadcast workflows, including SMPTE 2210, NDI, SRT, and Dante. Define, document, and enforce broadcast and IT network standards. Stay current with industry advancements through ongoing training and certifications. Act as liaison between vendors, consultants, and business partners to ensure broadcast network requirements are met. Support high-profile live broadcasts by managing third-party service providers, troubleshooting network issues, and ensuring transmission reliability through redundancy testing and disaster recovery planning. What you'll need: Bachelor's degree in computer science, Information Technology, Broadcast Engineering, Telecommunications, or a related field. 6+ years of network experience with a focus on broadcast environments. Experience with SMPTE 2110, video-over-IP, and High-Density Wireless installations Proven experience managing live production networks and media transport systems. Competence in Broadcast and IT network integration. SMPTE 2110 Suite of Standards is preferred. CCNA, CCNP, CCIE or equivalent broadcast IT certifications are nice to have. AWS Cloud Practitioner (or equivalent cloud networking certification) preferred. The pay range for this role is $90,000-95,000 annually. Actual compensation packages are based on several factors that are unique to each candidate, including but not limited to skill set, depth of experience, certifications, and specific work location. The total compensation package for this position may also include annual performance bonus, 401K retirement plan with company match, paid time off and commuter benefits. Additional perks include access to our state-of-the-art gym with free fitness classes, catered meals, fun events and free parking.

FES- Further Enterprise Solutions a leading provider of engineering services, turnkey solutions, and software solutions, Founded in 2002 by wireless industry veterans, FES has rapidly grown to become a leading provider of innovative solutions to leading telecommunications providers and equipment manufacturers. FES is headquartered in Philadelphia, PA with branch offices through the U.S. and Canada to ensure a rapid response and face to face contact with our clients and staff. Job Description Integration, Commissioning, and Datafill Engineers with experience on the NSN UMTS/GSM platform for consulting positions in Chicago. Tasks Include: Commission and integrate NSN Node B & GSM Flexi remotely from BSC/RNC/OSS. Create SCF & load 2G / 3G datafill to BSC/RNC as per CIQ. Troubleshoot I & C related issues. Provide technical support to field teams for installation, integration & commissioning. Alarm & performance monitoring post swap. Technical support for the RNC which includes routine RNC O&M and troubleshootin Qualifications Requirements: Candidate should have hands on working experience on NSN RNC/OSS with Node-B TRS, Commissioning file generation & execution. Creation of sites and neighbors (both UTRAN and GSM) Understand Protocol analysis and call flow messaging Understand protocol analyzer setup and output Understand the parameters for Air interface algorithms (Power control / Admission control / Handover control / etc.) Create KPI & monitor Alarm on the OSS application ATM/IMA knowledge and implementation Additional InformationAll your information will be kept confidential according to EEO guidelines.

Job Description Who We Are Founded in 1980 as Aardvark Financial, TransMarket Group (TMG) is a privately held global markets proprietary trading firm in Chicago. We use next-generation technology to capture opportunities around the world and manage risk in financial markets. Our mission is to bless others through the services we provide and through the generous stewardship of the wealth we create. TMG is a well-established and profitable business as a respected member of the global financial system for over 40 years, but also is like a startup because the potential of our group is at least one order of magnitude greater than what we are currently producing. We have an entrepreneurial culture and collaboratively develop our business with patience and discipline; we work hard, learn constantly, and relentlessly improve our expertise. Responsibilities Design network solutions for TMG's automated trading infrastructure Implement and maintain a high availability, low latency network infrastructure Troubleshoot network and network related issues Collaborate with other team members on new technology solutions Work with other teams within the firm to address technological issues Proactively monitor the network and provide capacity planning Participate in the on-call support rotation and some weekend work Mentor junior engineers from a technical perspective Requirements Seasoned engineer, ideally with a CCIE, experience building and maintaining production financial/trading networks Experience with multicast and unicast routing protocols (TCP/IP, PIM, BGP, OSPF) Experience with the design, deployment, and operation of modern IP multicast networks Working knowledge of low latency networking concepts Experience with firewall administration and site to site VPN Some hands-on required for data center work Deep understanding of the TCP/IP stack Experience with packet capture and tcpdump analysis tools Knowledge of high accuracy timing protocols Experience with network management software and tools Scripting language experience such as python for network automation, testing, and troubleshooting Effective communication and interpersonal skills This position requires physical presence and is onsite (no remote work) Benefits We offer one of the most generous profit sharing programs in the industry because we believe our employees should be able to take part in our rapid growth and success. We are proud to offer more world-class benefits for our full-time employees and their families. TransMarket Group is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, gender, sexual orientation, gender identity or expression, religion, national origin, marital status, age, disability, veteran status, genetic information, or any other protected status.

We are seeking a junior network engineer to join our dynamic IT team. This person will be responsible for planning, building, and maintaining both physical and virtual networks, including LANs, WANs, and cloud-based systems. This involves configuring devices like routers and switches, troubleshooting connectivity issues, and optimizing network performance. Primary Responsibilities Perform administration and configuration of all network equipment, including but not limited to firewalls, switches, and wireless access points. Participate in planning design, technical review and implementation for new network infrastructure hardware and network operating systems for voice and data communication networks. Design solutions with other teams to support new or updated technologies. Monitor and assist in managing network infrastructure (firewalls, routers, switches, wireless access points). Desktop support person in a Windows environment with some network. Assist in implementing and maintaining network and security policies, procedures, and configurations. Support incident response efforts by identifying, analyzing, and escalating potential security threats. Maintain user access controls, permissions, and authentication systems. Perform basic vulnerability scans and support patch management. Monitor network and security logs for unusual or unauthorized activity. Assist in maintaining documentation for network diagrams, configurations, and standard procedures. Support internal audits and compliance efforts (e.g., HIPAA, PCI, or ISO 27001 if applicable). Collaborate with senior security analysts/administrators to remediate system vulnerabilities. Skills/Qualifications 1+ years of hands-on experience or strong academic background in networking and/or security (internships acceptable). Desktop support person in a Windows environment with some network. Basic understanding of TCP/IP, DNS, DHCP, VPNs, and firewalls. Familiarity with security concepts such as authentication, encryption, and endpoint protection. Strong troubleshooting skills and willingness to learn new technologies. Ability to analyze network performance data and identify areas for improvement. Ability to work under direction and escalate issues appropriately. Excellent problem-solving, organizational skills, and detailed orientated. Strong communication skills and interpersonal skills, with ability to collaborate, convey technical concepts to non-technical stakeholders. Results oriented with high attention to detail, ability to multi-task, and meet deadlines in a dynamic, fast-paced team environment. Benefits Summary: Healthcare coverage starting at $0 out of pocket for individuals HSA with annual company contribution ($200/individual, $350/family) Vision and Dental offered Deep discounts on supplemental plans (LTD, Critical illness, Hospital stay and Accident) $50K life and AD&D coverage at no charge 401K with 100% match for first 3% and 50% match for the next 2% contributed (up to a 5% match) Unlimited PTO policy Compensation: $60,000-$80,000/yr

Junior Network AdministratorLocation: Chicago, IL Monitor and assist in managing network infrastructure (firewalls, routers, switches, wireless access points) Desktop support person in a Windows environment with some network Assist in implementing and maintaining network and security policies, procedures, and configurations Support incident response efforts by identifying, analyzing, and escalating potential security threats Maintain user access controls, permissions, and authentication systems Perform basic vulnerability scans and support patch management Monitor network and security logs for unusual or unauthorized activity Assist in maintaining documentation for network diagrams, configurations, and standard procedures Support internal audits and compliance efforts (e.g., HIPAA, PCI, or ISO 27001 if applicable) Collaborate with senior administrators to remediate system vulnerabilities Required Qualifications: 1+ years of hands-on experience or strong academic background in networking and/or security (internships acceptable) Desktop support person in a Windows environment with some network Basic understanding of TCP/IP, DNS, DHCP, VPNs, and firewalls Familiarity with security concepts such as authentication, encryption, and endpoint protection Strong troubleshooting skills and willingness to learn new technologies Ability to work under direction and escalate issues appropriately SALARY AND BENEFITS The leadership of our Company believes in attracting and retaining exceptional talent committed to serving our clients. We offer a generous benefits package including health insurance, paid vacation, disability, and life insurance, and more. Please visit our Careers page for additional information. Salary and benefits information will be available to applicants, when and if an offer is made. HOW TO APPLY All applications must be completed online. We do not accept paper submissions. Please visit our Careers Page to review all current job postings, and instructions on the application process. As an Equal Employment Opportunity (EEO) Employer, Cycurion, Inc. and our Subsidiaries prohibit discriminatory employment actions against and treatment of its employees and applicants for employment based on actual or perceived race or color, size (including bone structure, body size, height, shape, and weight), religion or creed, alienage or citizenship status, sex (including pregnancy), national origin, age, sexual orientation, gender identity (one's internal deeply-held sense of one's gender which may be the same or different from one's sex assigned at birth; one's gender identity may be male, female, neither or both, e.g., non-binary), gender expression (the representation of gender as expressed through, for example, one's name, choice of pronouns, clothing, haircut, behavior, voice, or body characteristics; gender expression may not be distinctively male or female and may not conform to traditional gender-based stereotypes assigned to specific gender identities), disability, marital status, relationship and family structure (including domestic partnerships, polyamorous families and individuals, chosen family, platonic co-parents, and multigenerational families), genetic information or predisposing genetic characteristics, military status, domestic violence victim status, arrest or pre-employment conviction record, credit history, unemployment status, caregiver status, salary history, or any other characteristic protected by law.

Network Troubleshooting, and Configuration Routing, Switch, Cisco experience More focus will be on troubleshooting than design aspect On call requirement Heavy industry exp. Is plus (Steel Industry exp. Will be preferred) Control systems (PLC) experience Self-Starter who requires limited direction Travel within local area of the plant (Sometime may be to Gary IN).

Virtus is dedicated to the success of employees and helping everyone on our team achieve their goals. We are a dynamic, fast-growing organization with the resources of a large firm and the innovative environment of an entrepreneurial company that promotes collaboration and employee engagement. Every member of our team is empowered to make a tangible impact in offering clients high-quality investment strategies to meet their financial needs and delivering value for our shareholders. We are an organization where employees can thrive personally and professionally. Professional development opportunities help employees enhance their skills and grow in their careers. Meaningful financial rewards and a comprehensive package of benefits support employees at every stage of life and encourage work-life balance, and physical, emotional and mental well-being. We believe in the value of a diverse, inclusive, and respectful work environment and are committed to making a positive impact in the communities where we live and work. Job Description The IT Network Engineer is responsible for installing, maintaining, and optimizing network hardware and software across multiple platforms, including Cisco, Aruba, and Palo Alto. This role ensures reliable network performance through proactive monitoring, troubleshooting, and regular maintenance. The engineer collaborates with telecom providers and internal teams to resolve connectivity issues, supports project implementations, and maintains thorough documentation of all network activities to drive operational efficiency and cost reduction. This role is hybrid, 1 day remote/ 4 days in office and can be located in Hartford, New York City or Chicago. Primary Job Responsibilities: * Install, configure, and maintain network hardware/software, including regular maintenance, patching and upgrades. * Document network configurations, changes, and maintenance activities. * Monitor network performance alerts and resolve or escalate issues as needed. * Collaborate with telecommunications providers and internal teams to resolve connectivity and project issues. * Assist in planning and implementing network projects and upgrades. Ideal Qualifications: * Bachelor's degree in computer science, MIS or equivalent years of experience and certifications. * Five to seven years of Information Technology Infrastructure experience. * Hands-on experience with routers, switches, and voice platforms. * Strong troubleshooting skills with the ability to handle complex issues independently. * Relevant industry certification, such as Cisco CCNP, is preferred. * Experience with high-performance trading and financial infrastructure for market connectivity, quantitative analysis, data processing, and operations. * Excellent communication skills and ability to collaborate effectively with business. The salary range is $96,477 to $117,917 The starting salary offer will vary based on the applicant's education, experience, skills, abilities, geographic location, internal equity, and alignment with market data. This position is also eligible to participate in the annual incentive plan.

Job description We are a rapidly growing IT Managed Service Provider located in the Westchester. We provide outsourced IT services to clients in the Chicago area, including industries such as Healthcare, Legal, Financial, Manufacturing, Federal Government, and many more. We are very fast paced and this position requires quick thinking and a "can do" attitude. We are looking for an eager, hungry, and motivated individual for full time salaried employment who is willing to work hard and be a team player. In this systems engineer opportunity, the ideal candidate will be responsible for providing expert level Windows and network based technical support on a variety of issues, as well as work towards maintaining and administering our client IT environment networks, servers, and cloud. Most technical support will be either from our office or on-site at client locations in the Chicago area. This support will involve responding to escalated technical service requests, and then identifying, researching, and resolving technical problems with client environments. You will also be involved in scoping, designing, deploying, and monitoring of client environments with both systems and network devices. A high level of attention to detail, prioritization of tasks, vendor management, support for company management, and assisting junior staff in all aspects of support is required. Requirements: Strong with VMware ESXi and Hyper-V Strong cloud experience with Microsoft Azure Strong with Windows Server 2016-2019, Active Directory, Group Policy and knowledge of networking Working with a ticketing and monitoring systems Testing and evaluating network systems to eliminate problems and make improvements Supporting and administration of tier III issues. Recommending and building systems and efficiencies for end-user and overall client site support both remotely and on-site Strong written and verbal communication and documentation skills Local travel to client sites required as needed, but is minimal. Must be self-directed and have the ability to solve complex problems. Must have ability to be disciplined and self sufficient. Preferred to have Managed Service Provider experience Compensation: You will learn an immense number of things at our company. Background will be checked. Please send your resume and contact information, and one recent IT project you completed. This will be a W2 position. Professional working environment Please, no recruiters! Please, do not call us about this position! **posting will be deleted only once the position has been filed. if posting still up, job still available** Job Type: Full-time Powered by JazzHR gAh2DqsW3b

The ideal candidate will be responsible for designing, implementing, managing, and supporting our organization's network and firewall infrastructure. The IT Network Engineer will collaborate with cross-functional teams to ensure stability, security, and optimal performance of our network systems. This role requires a strong understanding of networking principles, protocols, and technologies, as well as the ability to troubleshoot complex issues and implement effective solutions. Essential Functions: Network Design and Implementation: Design, plan, and implement scalable and reliable network architectures to meet the organization's requirements. Deploy and configure network hardware, including routers, switches, firewalls, and other devices. Conduct network capacity planning and recommend improvements to support future growth. Meraki, Cisco and Fortinet experience preferred Network Security: Implement and maintain network security measures to protect the organization's data and infrastructure. Regulate and enhance our security posture through firewall updates Monitor network traffic for security breaches and promptly respond to security incidents. Stay updated on industry best practices and emerging security threats. Network Maintenance and Troubleshooting: Perform routine network maintenance tasks, including updates, patches, and backups. Diagnose and resolve network issues promptly, minimizing downtime and ensuring optimal performance. Diagnose and provide timely resolution to user-reported network problems. End User Support: Monitor and maintain the employee Help Desk for all IT issues Coordinate the assigning and resolution of all Help Desk tickets. Create and maintain Help Desk reporting for management Communicate technical information effectively to non-technical stakeholders Diagnose and resolve stakeholders' issues in a timely manner Escalate issues promptly as required to Sr Engineers. Performance Monitoring and Optimization: Monitor network performance and analyze key metrics to identify areas for improvement. Optimize network configurations for maximum efficiency and reliability. Implement performance tuning measures to enhance overall network performance. Documentation: Maintain accurate and up-to-date documentation of network configurations, processes, and procedures. Maintain accurate and up-to-date documentation for firewalls Create and update network diagrams to aid in troubleshooting and future planning. Collaboration and Communication: Work closely with cross-functional teams, including system administrators, security professionals, and software developers. Work closely with Advanced level support vendors Communicate technical information effectively to non-technical stakeholders. Qualifications & Experience: Bachelor's degree in Computer Science, Information Technology, or related field. Proven experience as a Network Engineer or similar role. In-depth knowledge of networking protocols, technologies, and best practices. Hands-on experience with network hardware and software, including routers, switches, firewalls, and intrusion detection/prevention systems. Strong understanding of network security principles and practices. Excellent troubleshooting and problem-solving skills. Relevant certifications (e.g., Cisco CCNA, CompTIA Network+, etc.) are a plus. Strong communication and collaboration skills. Minimum of 2 years of experience Work Environment: The IT Network Engineer will primarily work in a climate-controlled office environment, providing both on-site and remote support with frequent customer interactions. Typical working hours (7.5 per day) will be between 8am and 6pm. Occasional evening or weekend work might be required for system maintenance or urgent support needs. Incumbent must be able to sit at a desk for more than 4 hours at a time and be able to move throughout all areas of the organization. * Pay is competitive and commensurate with experience Equal Opportunity Employer: /Individuals with Disabilities/Protected Veteran

Senior Network EngineerEmployment Type: Full TimeDepartment: Information Technology CGS is seeking an experienced Senior Lead Network Engineer to join a team focused on the evaluation, enhancement, and maintenance of a large-scale network project that includes both wired and wireless network infrastructure and related hardware & software. The project's objectives are to evaluate the current setup of existing disparate networks and design & implement a network infrastructure that encompasses the wireless, wired, and software network requirements. The project will also include consultation regarding hardware and software necessary to facilitate the proper support for this encompassing infrastructure, and the associated systems testing, vulnerability assessments, and quality assurance needed to implement the new setup. This Network Engineer will interface with state and local governmental personnel, internal stakeholders, subject matter experts, and vendor(s) who will provide development services. CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to government innovation, appreciate collaboration, and can anticipate the needs of others. Here at CGS, we offer an environment in which our employees feel supported, and we encourage professional growth through various learning opportunities. Skills and attributes for success:- Operate and manage NPS network infrastructure;- Improve infrastructure monitoring and reporting capabilities based on the deployment of network management software;- Develop, maintain and deliver infrastructure documentation relating to the network infrastructure within the NPS environment;- Review current best practices and provide recommendations for architecture, design, management and operation of the network infrastructure;- Administration of the Cloudpath (or equivalent) onboarding process, monitoring and troubleshooting of wireless network health, maintenance of wireless network infrastructure, implementation of network security patches and software/firmware updates, from 0800 to 1700 PST, Monday-Friday;- Assess the NPS network infrastructure and make recommendations on improvement and optimization;- Define and conduct testing procedures for new infrastructure projects;- Implement technology solutions within the NPS network environment;- Provide design guidance on network solutions within NPS infrastructure projects;- Provide informal training and knowledge transfer to NPS resources on best practices and theory of operation relating to network products. Qualifications:- Bachelor's Degree from an accredited college or university in Engineering, Computer Science, Business, Information systems or a related discipline.- Strong documentation skills including updating JIRA Tickets, Wiki Pages and Network Diagrams- Ability to communicate with end users, cross-organizational staff and technical assistance center.- CWNA Certification or equivalent- BCNE Certification or equivalent- Experience utilizing (RF) site survey tools such as Ekahau, RF Scanners and Wireshark packet capture software- Strong knowledge of layer 2 switching and layer 3 routing protocols; including VLANs, 802.1w, OSPF and VRRP- Strong knowledge of network security including; 802.1x, MAC Authentication, ACLs, RADIUS and Certificate of Authority (CA)- Strong knowledge of troubleshooting RF and LAN issues- Working knowledge of LINUX, MS Server 2013, VMware, etc.- A Master's Degree in Engineering, Computer Science, Business, Information systems or a related discipline- At least 3 years experience with disaster recovery plan creation / implementation testing or projects - Experience with penetration testing, vulnerability assessment, and vulnerability testing- Experience with cyber threat information collection and analysis- Working knowledge of Agile/SCUM project management methodologies- Additional Industry certifications/licences Our Commitment:Contact Government Services (CGS) strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources. We combine cutting-edge technology with world-class personnel to deliver customized solutions that fit our client's specific needs. We are committed to solving the most challenging and dynamic problems. For the past seven years, we've been growing our government-contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come. We care about our employees. Therefore, we offer a comprehensive benefits package.- Health, Dental, and Vision- Life Insurance- 401k- Flexible Spending Account (Health, Dependent Care, and Commuter)- Paid Time Off and Observance of State/Federal Holidays Contact Government Services, LLC is an Equal Opportunity Employer. Applicants will be considered without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran. Join our team and become part of government innovation!Explore additional job opportunities with CGS on our Job Board:**************************************** more information about CGS please visit: ************************** or contact:Email: ******************* #CJ

**Your Work Shapes the World at Caterpillar Inc.** When you join Caterpillar, you're joining a global team who cares not just about the work we do - but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here - we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it. As a Data Center Network Engineer, you will contribute to the success of Caterpillar's state-of-the-art data center network architecture and network solutions. In this role, you will be part of a team responsible for the complete lifecycle of the Data Center Network. This includes planning, creating design solutions, deploying, and monitoring to ensure the Data Center Network operates at maximum reliability, scalability, and efficiency. **What You Will Do:** + Design, document, deploy, and manage Data Center Network solutions through all phases of lifecycle management for Cisco ACI & Nexus equipment and Radware Load Balancers deployed at enterprise hosting locations and local facilities. + Support infrastructure and deployment projects across multiple regions and locations. + Partner with hardware, software, and vendor teams on the development of data center solutions. + Provide project participation, advice, and counsel to IT personnel, management, and project teams on various aspects of enterprise Data Center Network hardware and software. + Establish and implement global security and operational best practices and adhere to IT Controls. + Adhere to IT Service Management processes, instruction, and procedural documentation. + Work with application support teams/customer/operations management to develop plans to minimize the technical and/or business impact of network environment changes. + Participate in an on-call rotation to support the global datacenter network infrastructure 24x7. + Monitor, troubleshoot and resolve complex problems within the enterprise Data Center networks. **What You Have:** + Problem Solving: Extensive knowledge of approaches, tools, techniques for recognizing, anticipating, and resolving organizational, operational or process problems; ability to apply knowledge of problem solving appropriately to diverse situations. + Technical Troubleshooting: Extensive knowledge of technical troubleshooting approaches, tools and techniques; ability to anticipate, recognize, and resolve technical issues on Data Center and Networking Hardware + Technical Excellence: Knowledge of a given technology and various application methods; ability to develop and provide solutions to significant technical challenges. + Requirements Analysis: Knowledge of tools, methods, and techniques of requirement analysis; ability to elicit, analyze and record required business functionality and non-functionality requirements to ensure the success of data center and networking projects. + System Testing: Knowledge of network, system and software testing; ability to design, plan and execute system testing strategies and tactics to ensure the quality of software at all stages of the system life cycle. + Technical Writing/Documentation: Knowledge of technical writing; ability to write technical documents such as manuals, reports, guidelines or documents on standards, processes and applications. **Top Candidates Will Also Have:** + Bachelor's degree in Computer Science, Computer Engineering, or related field. + Three to six years of experience designing, deploying, and operating large-scale networks. + Cisco Certified Network Associate (CCNA) or equivalent. + Strong communication, teamwork, analytical, interpersonal, and customer service skills + Ability to communicate service interruptions is critical; management and impacted customer base must be aware of the situation and anticipated recovery time. + Experience working on multiple projects simultaneously and delivering against deadlines in a complex global environment. + Hands-on experience with the following: + Cisco Nexus Network Switches and NX-OS + Cisco Application Centric Infrastructure (ACI) + Application Delivery Controller (Network Load Balancer) + Radware Alteon **Additional Info** : + The ideal location for this role is East Peoria-IL, Nashville-TN, Irving-TX + This position may require 10% travel. **About Caterpillar -** Caterpillar Inc. is the world's leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we've been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed. **Summary Pay Range:** $95,640.00 - $155,400.00 Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar. **Benefits:** Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits. + Medical, dental, and vision benefits* + Paid time off plan (Vacation, Holidays, Volunteer, etc.)* + 401(k) savings plans* + Health Savings Account (HSA)* + Flexible Spending Accounts (FSAs)* + Health Lifestyle Programs* + Employee Assistance Program* + Voluntary Benefits and Employee Discounts* + Career Development* + Incentive bonus* + Disability benefits + Life Insurance + Parental leave + Adoption benefits + Tuition Reimbursement * These benefits also apply to part-time employees This position requires working onsite five days a week. Relocation is available for this position. Visa Sponsorship is not available for this position. This employer is not currently hiring foreign national applicants that require or will require sponsorship tied to a specific employer, such as, H, L, TN, F, J, E, O. As a global company, Caterpillar offers many job opportunities outside of the U.S which can be found through our employment website at **************************** **Posting Dates:** December 8, 2025 - December 21, 2025 Any offer of employment is conditioned upon the successful completion of a drug screen. Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply. Not ready to apply? Join our Talent Community (*********************************************** .

Job Description We are seeking a junior network engineer to join our dynamic IT team. This person will be responsible for planning, building, and maintaining both physical and virtual networks, including LANs, WANs, and cloud-based systems. This involves configuring devices like routers and switches, troubleshooting connectivity issues, and optimizing network performance. Primary Responsibilities Perform administration and configuration of all network equipment, including but not limited to firewalls, switches, and wireless access points. Participate in planning design, technical review and implementation for new network infrastructure hardware and network operating systems for voice and data communication networks. Design solutions with other teams to support new or updated technologies. Monitor and assist in managing network infrastructure (firewalls, routers, switches, wireless access points). Desktop support person in a Windows environment with some network. Assist in implementing and maintaining network and security policies, procedures, and configurations. Support incident response efforts by identifying, analyzing, and escalating potential security threats. Maintain user access controls, permissions, and authentication systems. Perform basic vulnerability scans and support patch management. Monitor network and security logs for unusual or unauthorized activity. Assist in maintaining documentation for network diagrams, configurations, and standard procedures. Support internal audits and compliance efforts (e.g., HIPAA, PCI, or ISO 27001 if applicable). Collaborate with senior security analysts/administrators to remediate system vulnerabilities. Skills/Qualifications 1+ years of hands-on experience or strong academic background in networking and/or security (internships acceptable). Desktop support person in a Windows environment with some network. Basic understanding of TCP/IP, DNS, DHCP, VPNs, and firewalls. Familiarity with security concepts such as authentication, encryption, and endpoint protection. Strong troubleshooting skills and willingness to learn new technologies. Ability to analyze network performance data and identify areas for improvement. Ability to work under direction and escalate issues appropriately. Excellent problem-solving, organizational skills, and detailed orientated. Strong communication skills and interpersonal skills, with ability to collaborate, convey technical concepts to non-technical stakeholders. Results oriented with high attention to detail, ability to multi-task, and meet deadlines in a dynamic, fast-paced team environment. Benefits Summary: Healthcare coverage starting at $0 out of pocket for individuals HSA with annual company contribution ($200/individual, $350/family) Vision and Dental offered Deep discounts on supplemental plans (LTD, Critical illness, Hospital stay and Accident) $50K life and AD&D coverage at no charge 401K with 100% match for first 3% and 50% match for the next 2% contributed (up to a 5% match) Unlimited PTO policy Compensation: $60,000-$80,000/yr Powered by JazzHR 2LNGReTY2f

Job DescriptionJunior Network AdministratorLocation: Chicago, IL Monitor and assist in managing network infrastructure (firewalls, routers, switches, wireless access points) Desktop support person in a Windows environment with some network Assist in implementing and maintaining network and security policies, procedures, and configurations Support incident response efforts by identifying, analyzing, and escalating potential security threats Maintain user access controls, permissions, and authentication systems Perform basic vulnerability scans and support patch management Monitor network and security logs for unusual or unauthorized activity Assist in maintaining documentation for network diagrams, configurations, and standard procedures Support internal audits and compliance efforts (e.g., HIPAA, PCI, or ISO 27001 if applicable) Collaborate with senior administrators to remediate system vulnerabilities Required Qualifications: 1+ years of hands-on experience or strong academic background in networking and/or security (internships acceptable) Desktop support person in a Windows environment with some network Basic understanding of TCP/IP, DNS, DHCP, VPNs, and firewalls Familiarity with security concepts such as authentication, encryption, and endpoint protection Strong troubleshooting skills and willingness to learn new technologies Ability to work under direction and escalate issues appropriately SALARY AND BENEFITS The leadership of our Company believes in attracting and retaining exceptional talent committed to serving our clients. We offer a generous benefits package including health insurance, paid vacation, disability, and life insurance, and more. Please visit our Careers page for additional information. Salary and benefits information will be available to applicants, when and if an offer is made. HOW TO APPLY All applications must be completed online. We do not accept paper submissions. Please visit our Careers Page to review all current job postings, and instructions on the application process. As an Equal Employment Opportunity (EEO) Employer, Cycurion, Inc. and our Subsidiaries prohibit discriminatory employment actions against and treatment of its employees and applicants for employment based on actual or perceived race or color, size (including bone structure, body size, height, shape, and weight), religion or creed, alienage or citizenship status, sex (including pregnancy), national origin, age, sexual orientation, gender identity (one's internal deeply-held sense of one's gender which may be the same or different from one's sex assigned at birth; one's gender identity may be male, female, neither or both, e.g., non-binary), gender expression (the representation of gender as expressed through, for example, one's name, choice of pronouns, clothing, haircut, behavior, voice, or body characteristics; gender expression may not be distinctively male or female and may not conform to traditional gender-based stereotypes assigned to specific gender identities), disability, marital status, relationship and family structure (including domestic partnerships, polyamorous families and individuals, chosen family, platonic co-parents, and multigenerational families), genetic information or predisposing genetic characteristics, military status, domestic violence victim status, arrest or pre-employment conviction record, credit history, unemployment status, caregiver status, salary history, or any other characteristic protected by law. Powered by JazzHR 2nazkLe7EU

Introduction Elegant solutions to sophisticated problems. That's what you deliver. Surround yourself with the team, resources, and support you need to design and build world-class IT solutions. Connection Services is seeking a Lead Network Engineer/Architect to join our Technical Staffing Division for a contract opportunity onsite in Niles, IL. This is a contract opportunity with benefits. We are seeking a highly skilled Lead Network Engineer/Architect to design, implement, and manage a global enterprise network infrastructure centered around Cisco technologies. The ideal candidate will demonstrate a balance of technical depth, strategic vision, and leadership, ensuring a secure, scalable, and high-performing network environment that supports global business operations. What We Do: We calm the confusion of IT by guiding the connection between people and technology. If a customer is looking for a better way to manage their warehouse inventory, equip their workforce, or secure their data, we make it happen. All it takes is finding the right combination of tech hardware, software, cloud solutions, and support services. That's what we do. We're the IT Department's IT Department. Who We Are: Our team is made stronger by a multitude of backgrounds, experiences, and perspectives. It's what makes Connection unique-what drives us to innovate and create technology solutions that stand apart from the crowd. We'd love for you to be a part of that fabric, to share your ideas and experiences with a team that thrives on fresh thinking, creativity, and helping others. Why You Should Join Us: You'll find supportive teammates and a rewarding career at Connection-plus great benefits. We take pride in supporting employees with a total rewards package that provides financial, emotional, and physical resources for you and your family. Our compensation, 401k plans, medical insurance, and other benefits are progressive and competitive. We value the importance of our employees' emotional well-being. To support employees, we provide free therapy visits, mental health coaching and tools, and meditation resources. You'll also enjoy a generous paid time off package that includes not only vacation and sick time, but also Wellness and Volunteer Time Off days. Responsibilities * Lead the architecture, design, and deployment of Cisco enterprise network solutions, including routers, switches, and firewalls (IOS, NX-OS, ASA/FTD). * Architect and administer Cisco Meraki environments across MX, MS, and MR platforms, with a focus on SD-WAN design, policy enforcement, and cloud-based management. * Design and integrate Cisco Identity Services Engine (ISE) for advanced authentication, authorization, and accounting across wired and wireless infrastructures. * Manage and optimize Cisco Umbrella and other cloud-delivered security platforms to enhance enterprise protection and compliance. * Oversee Cisco Unified Communications Manager (CUCM) systems, ensuring performance, resiliency, and seamless VoIP operations. * Perform complex troubleshooting, packet analysis, and root cause diagnostics to maintain optimal uptime and reliability. * Collaborate with cross-functional teams to execute infrastructure modernization, migration, and network upgrade projects. * Maintain comprehensive network documentation, topology diagrams, and configuration standards. * Provide technical mentorship to junior engineers and contribute to architectural roadmaps and best practices. * Enforce network and security compliance standards across all environments. Requirements * 8+ years of progressive experience in enterprise network engineering and architecture. * Expert-level knowledge of Cisco IOS, NX-OS, ASA/FTD, and Meraki platforms. * Proven hands-on experience with Cisco ISE (policy creation, profiling, AD/LDAP integration). * Strong understanding of Cisco Umbrella and cloud security models. * In-depth experience with CUCM, VoIP, and unified communications. * Proficiency in routing and switching protocols (BGP, OSPF, EIGRP, VLANs, STP, Layer 2/3). * Familiarity with network performance monitoring tools (SolarWinds, NetFlow, etc.). * Relevant Cisco certifications such as CCNP or CCIE strongly preferred. * Excellent analytical, communication, and documentation abilities. Preferred Qualifications: * Experience with network automation and scripting (Python, Ansible). * Exposure to cloud networking (AWS, Azure). * Familiarity with SD-Access, Software-Defined Networking (SDN), and modern enterprise architectures. * Understanding of ITIL frameworks and change management processes.