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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr. Network Engineer III (6776) - **Company:** MetroStar Systems - **Location:** Washington, DC, United States - **Experience:** Expert - **Salary:** $230,000.0 - $342,000.0 - **Contract:** Permanent contract - **Skills:** Automatic Call Distributor, Agile Methodology, VoIP, Cisco Unified Communications Manager, Collaborative Software, Jabber, Cisco WebEx, Computer Network Operations, Cisco - **Published:** August 5, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9077918/sr-network-engineer-iii-6776 ## About the Role * Active U.S. Government Issued Top Secret security clearance (or higher level classification). * Bachelor's degree in a technical field is preferred. Relevant experience may substitute for education requirements. * Possess DoD 8140 certification aligned to the 441 Network Operations Specialist work role, such as Network+, Security+, Cloud+, SSCP, CASP+, CISSP, or CCNP Security. * 10+ years of experience leading or assisting in review, design, and implementation of network engineering solutions, with deep hands-on expertise supporting enterprise Unified Communications environments. * Demonstrated subject matter expertise designing, implementing, and troubleshooting complex voice, video, and collaboration platforms, including Cisco Unified Communications Manager, Webex, and Microsoft Teams. * Hands-on experience supporting session border controllers, voice gateways, call routing, and ensuring Quality of Service for real-time traffic. * Hands-on experience with VQ Conference Manager, Jabber, Cisco telephony endpoints, and Cisco Expressway. * Proven ability to troubleshoot and resolve operational voice and video issues in mission-critical environments with minimal ramp-up. * Ability to contribute immediately in a mission-critical operational environment. ## Description As a Sr. Network Engineer III, you'll serve as a technical authority for voice, video, and collaboration platforms, contributing immediately as a subject matter expert within a fast-paced operational environment. Success requires deep technical expertise, proactive problem solving, and strong team collaboration. This role provides senior unified communications engineering support for a highly visible, security-sensitive customer., * Work as part of a collaborative, high-performing team delivering technical solutions supporting the highest levels of the federal government. * Design, implement, and troubleshoot enterprise voice, video, and collaboration (Unified Communications) platforms. * Configure and support SBCs, voice gateways, dial plans, and QoS to ensure high-quality real-time voice and video traffic. * Serve as a technical Subject Matter Expert (SME), able to support operational issues with minimal ramp-up time. * Participate in Agile execution and contribute to collaborative problem-solving efforts. * Communicate technical issues, risks, and solutions clearly to both technical and non-technical stakeholders. * Proactively recommend technical improvements and architectural enhancements. * Actively contribute to team discussions, planning, and continuous improvement initiatives. * Support mission operations with urgency, accountability, and a strong sense of ownership. * Demonstrate the ability to contribute immediately in a fast-paced, mission-critical environment. * Establish and maintain a high level of customer trust and confidence through technical expertise and professionalism. * Apply creativity and innovation to deliver solutions that best fit customer needs and mission objectives. ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Getting under the skin: The Social Engineering techniques](https://www.wearedevelopers.com/videos/38-getting-under-the-skin-the-social-engineering-techniques) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [You’re a great coder? That alone won’t get you far: The soft skills secret in IT success](https://www.wearedevelopers.com/videos/1076-you-re-a-great-coder-that-alone-won-t-get-you-far-the-soft-skills-secret-in-it-success) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best US AI Conferences for CTOs in 2026: Build vs. Buy, Vendor Evaluation, and Peer Intelligence](https://www.wearedevelopers.com/magazine/736-best-us-ai-conferences-for-ctos-in-2026-build-vs-buy-vendor-evaluation-and-peer-intelligence) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Attend a Developer Event in 2026?](https://www.wearedevelopers.com/magazine/688-why-attend-a-developer-event-in-2026)