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Senior Network Engineer (Enterprise & Data Center Networking)
Status: US Citizenship required
Duration: 1 year plus extensions
Location: Washington, DC
Position Overview
We are seeking a highly experienced Senior Network Engineer to support the stability, performance, and security of enterprise and data center network infrastructure. This role requires deep, hands-on expertise in complex routing environments, with a strong focus on BGP (Border Gateway Protocol) and OSPF (Open Shortest Path First) design, deployment, and troubleshooting.
Important: Candidates must demonstrate proven, real-world experience managing and optimizing large-scale routing environments. Profiles with only theoretical knowledge or limited exposure will not be considered.
Key Responsibilities
- Design, implement, and maintain internal and external network infrastructure supporting critical business applications
- Manage and support Cisco-based environments, including Catalyst and Nexus platforms, wireless networks, ISE, and IPS
- Perform advanced routing and switching troubleshooting, including production issue resolution
- Develop and implement network designs to improve performance, resiliency, and scalability
- Plan and execute network upgrades and migrations in coordination with cross-functional teams
- Proactively monitor and analyze network health using enterprise monitoring tools
- Support data center and hybrid/cloud networking initiatives
- Ensure high availability, security compliance, and continuous network operations
Required Qualifications
- 10+ years of hands-on experience supporting enterprise-grade network infrastructure in large data center environments
- Expert-level knowledge of BGP and OSPF, including:
- Traffic engineering
- Route optimization
- Failover and convergence design
- Advanced expertise in TCP/IP troubleshooting and packet analysis
- Strong hands-on experience with:
- Cisco NX-OS and IOS-XE platforms
- Cisco Nexus (9K, 7K) and Catalyst switches/routers
- BGP, OSPF, and STP configuration and troubleshooting
- Proven experience in designing, planning, testing, implementing, and supporting large-scale data center networks
- Experience with network monitoring and management tools such as SolarWinds and Cisco Catalyst Center
- Exposure to cloud networking and hybrid architectures
Required Experience (Must Demonstrate)
Candidates must be able to clearly articulate and provide real-world examples of:
- Designing and implementing BGP and/or OSPF routing architectures in production environments
- Troubleshooting complex routing issues impacting business-critical systems
- Leading or supporting data center network deployments, upgrades, or migrations
- Implementing failover strategies, convergence tuning, and traffic optimization in large-scale networks
What We’re Looking For
- Engineers with deep, hands-on routing expertise, not just keyword familiarity
- Strong problem-solvers who have worked in complex, high-availability environments
- Candidates who can confidently discuss real production scenarios and outcomes
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