Sr Network Engineer SME

Job Description Job Description

Sr Network Engineer SME

100% ONSITE in NW Washington DC 20006 (New York Ave)

Per Federal contract U.S. Citizenship Required

Must be able to pass enhanced FBI background screening (criminal, financial and finger printing) for Public Trust clearance

Performance Period:Aug 2026- Dec , with the possibility of multi-year extension based on performance

W-2 or C2C

Must Apply before July 14th 12:00pm

MUST have proven, hands-on experience in complex routing environments with in depth experience in BGP and OSPF routing (design, deployment, and troubleshooting)

This role supports the stability, performance, and security of enterprise and data center network infrastructure. The position is responsible for managing Cisco-based networking environments including Cisco Catalyst and Nexus platforms, wireless networks, ISE, and IPS, while ensuring high availability, security compliance, and continuous operations. The ideal candidate is not only a subject matter expert in BGP, OSPF and VXLANs, but also a well-rounded network engineer who can support day-to-day operations, contribute to security and visibility platforms, and drive innovative improvements across the network.

Key Responsibilities

• Design, implement, and maintain internal and external network infrastructure supporting critical business applications.
• Support day-to-day network operations and ongoing initiatives, including routing and switching troubleshooting, maintenance activities, and operational support.
• Develop and implement new network designs and improvements to enhance performance, resiliency, and scalability.
• Plan and execute network upgrades in collaboration with internal teams.
• Proactively monitor and analyze network health using enterprise monitoring and management platforms.
• Participate in cloud migration and hybrid network initiatives.
• Ensure network availability, security, and compliance with enterprise standards.

Required Qualifications

• Minimum of 10 years of experience supporting enterprise grade routers and switches in large data center environments.
• Expert-level knowledge of BGP and OSPF, including traffic engineering, route optimization, and failover design.
• Strong expertise in TCP/IP troubleshooting and packet analysis.
• Hands-on experience configuring and supporting:
• • BGP, OSPF, and STP on Cisco NX-OS and IOS-XE platforms
  • CiscoNexus (9K, 7K)and Catalyst switches and routers
• Proven experience designing, planning, testing, implementing, and troubleshooting large-scale data center networks.
• Experience with network management and monitoring tools, such as SolarWinds and Cisco Catalyst Center.
• Experience with cloud networking and hybrid network architectures.

Candidates should be able to clearly articulate and provide examples of:

• Designing and implementing BGP and/or OSPF routing architectures
• Troubleshooting complex routing issues in production environments
• Supporting or leading data center network deployments or migrations
• Real-world scenarios involving failover, convergence, and traffic optimization

Company Description System One is a leading provider of specialized, highly technical services and solutions to critical infrastructure, technology, life sciences, and government sectors. We partner with large private and public organizations who trust us to execute their complex, mission-critical initiatives through our outsourced services and workforce solutions. Company Description System One is a leading provider of specialized, highly technical services and solutions to critical infrastructure, technology, life sciences, and government sectors. We partner with large private and public organizations who trust us to execute their complex, mission-critical initiatives through our outsourced services and workforce solutions.