26-00048L-Senior Network Engineer
MBAcsi · Merrifield, Virginia, United States · Posted Jul 7, 2026
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MBA Consulting Services, Inc. (MBA CSi) is seeking a Senior Network Engineer to support the United States Postal Service (USPS) Mail Processing Network Infrastructure. In this role, you will design, implement, and maintain enterprise network infrastructure supporting mission-critical USPS operations. Working as part of a highly skilled engineering team, you will be responsible for network architecture, implementation, troubleshooting, and security while supporting large-scale federal IT initiatives.
This is an outstanding opportunity for an experienced network engineer to work on complex enterprise networking projects, strengthen critical federal infrastructure, and continue developing your technical expertise in a collaborative, mission-driven environment.
Responsibilities
Design, implement, and maintain enterprise network infrastructure supporting USPS Mail Processing Network environments.
Configure, deploy, and troubleshoot Cisco Catalyst switches , routers, and Layer 2 networking components.
Design and implement scalable network architectures for new and existing enterprise applications.
Manage IP address allocation, subnetting, routing protocols, and overall network infrastructure performance.
Install, configure, and support network security hardware and software.
Troubleshoot complex network issues using packet capture and analysis tools such as Wireshark .
Provide Tier 3 technical support for complex networking and multi-application connectivity issues.
Develop and maintain technical documentation including Statements of Work (SOWs), after-action reports, network diagrams, and technical presentations.
Collaborate with engineering teams to implement reliable, secure, and high-performing network solutions.
Support ongoing network optimization, performance tuning, and continuous process improvements.