New

Network Engineer

Modern Technology Solutions, Inc.
401(k)
United States, Virginia, Alexandria
5285 Shawnee Road (Show on map)
Jul 16, 2026
Modern Technology Solutions, Inc. (MTSI) is searching for aNetwork Engineer. Day-to-day responsibilities include managing and supporting enterprise network infrastructure across classified and unclassified systems. As a mid-level Network Engineer, you will be hands-on with the networking equipment from day 1.You will leverage your Cisco network equipment experience to design and optimize onpremises network architectures, integrate them with cloud environments. You will configure secure network hardware/software across Cisco routing, switching, and firewall platforms currently deployed in our environment. Then monitor performance, identify connectivity and/or security issues, and rapidly implement fixes to maintain network fidelity. You will work closely with cybersecurity teams, cloud engineers, and system administrators to ensure compliance with DoD standards and support evolving mission requirements. Attention to detail, strong troubleshooting skills, and the ability to operate effectively in highly secure onsite environments are critical. How you will contribute to our National Security and Defense mission: You will design, implement, and maintain secure and reliable networks aligned with DoD and government cybersecurity requirements. This includes hands-on configuration of Cisco networking platforms, cloud networking integration, and ensuring seamless connectivity across missioncritical systems. You will oversee network configuration, troubleshooting, and implementation of scalable solutions that support operations in both onpremises and cloud-based environments. You'll be a great fit for this role if: You have a passion for modernizing network and cybersecurity infrastructure. You understand DoD reference and STIG compliance architectures. You have experience with cloud systems, on-prem networks. You excel at diagnosing complex networking issues quickly and effectively. You communicate clearly and collaborate well with cross-functional teams. Responsibilities: Design, develop, and maintain secure network architectures for classified and unclassified environments. Configure, manage, and optimize Cisco firewalls, routers, and switches in alignment with existing enterprise standards. Assist in planning and designing large-scale network projects, including cloud integration efforts. Monitor network performance proactively; identify bottlenecks and improve reliability. Diagnose and resolve network-related issues while ensuring minimal downtime. Deploy and manage network security protocols per DoD requirements, including RMF and STIG compliance. Implement networking solutions that integrate on-premises systems with AWS, Azure, or other cloud environments. Prepare documentation, conduct audits, and support regulatory compliance efforts. Collaborate with cybersecurity teams to align operations with organizational security goals. Qualifications Required: 5-8+ years of hands-on network engineering experience (mid-level). Strong experience designing enterprise networks and integrating them with cloud environments. Practical expertise with Cisco routing, switching, and firewall platforms used in our environment. Experience installing, configuring, and managing network hardware (switches, routers, firewalls). Proficiency with networking fundamentals: IP addressing, DNS, VLANs, VPNs, BGP, TCP/IP. Experience with cloud networking technologies (Azure, Nutanix, etc.). Familiarity with DoD compliance frameworks such as RMF and STIGs. Experience with enterprise network monitoring and management tools. Proficient in both on-premises and cloud-based networking services. Education: Bachelor's degree from an accredited university in an IT-related field such as Computer Networking, Computer Science, Computer Engineering, Information Technology, Information Systems, or a related field. Industry certifications such as CCNA, CCNP, CISSP, or AWS/Azure networking certifications are highly desirable. Clearance Requirements: Must have a Secret DoD Security Clearance. Must be a US Citizen. The pay range for this position in Virginia is $120,000/year to $160,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-MS1 #LI-Onsite Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry. 100% Employee Owned: We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year. Great Benefits - Most Full-Time Staff Are Eligible for: Starting PTO accrual of 20 days PTO/year + 10 holidays/year Flexible schedules 6% 401k match with immediate vesting up to $9k annually Semi-annual bonus eligibility (July and December) Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account Up to $10,000 in annual educational reimbursement Other company funded benefits, like life and disability insurance Optional zero deductible Blue Cross/Blue Shield health insurance plan Track Record of Success: We have grown every year since our founding in 1993. Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.