Voice Network Engineer

The AEGIS Sector at Leidos is seeking a highly skilled Voice Network Engineer to support NASA's enterprise communications environment. This position plays a critical role in the architecture, design, integration, testing, and deployment of voice and collaboration technologies across the agency. The successful candidate will help drive the strategic evolution of NASA's voice services while ensuring reliability, security, and operational excellence throughout the enterprise.

This position is located at Goddard Space Flight Center.

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit

• Collaborate with Network Architects to develop and advance NASA's enterprise voice and collaboration architecture.
• Partner with AEGIS engineering teams across NASA centers to modernize voice network services in accordance with established standards and best practices.
• Evaluate, test, and validate approved voice and collaboration technologies for deployment within the NICS contract environment.
• Administer and support NASA's enterprise SIP infrastructure, including:
  Session Manager Edition (SME) Cisco Unified Communications Manager (CUCM) Cisco Unity Connection (CUC) Cisco Unified Presence Server (CUPS) Cisco Unified Border Element (CUBE) Analog voice gateways MS Teams Telephony.
• Design and implement integration strategies for emerging technologies that enhance user experience and operational efficiency.
• Conduct comprehensive lab testing and validation of system upgrades, software releases, and architectural changes prior to production deployment.
• Develop detailed Release and Deployment Packages (RDPs) and implementation documentation for engineering and operations teams.
• Partner with cybersecurity personnel to maintain system security documentation and develop remediation strategies for identified vulnerabilities.
• Provide advanced Tier 3 engineering support to voice services teams throughout the NASA enterprise.
• Develop transition and migration plans supporting the adoption of next-generation communication technologies.

• Bachelors degree and 12 years of experience in network engineering.
• Excellent written and verbal communication skills with the ability to present technical information to both technical and non-technical audiences.
• Extensive experience supporting Cisco Unified Communications environments.
• Strong understanding of:
  Session Initiation Protocol (SIP) Voice over IP (VoIP) technologies Enterprise voice network design VMware virtualization platforms Telecommunications standards and protocols MS Teams Telephony.
• Proven ability to work independently in a dynamic, fast-paced environment.
• Experience developing technical documentation, engineering standards, and operational procedures.
• Demonstrated ability to manage multiple projects while meeting customer requirements and project deadlines.

U.S. Citizenship is required. Ability to obtain and maintain a Public Trust.

• Cisco certifications such as CCNA, CCNP Collaboration.
• Experience deploying and supporting Microsoft Teams Telephony solutions.
• Power Shell scripting and automation experience.
• Advanced knowledge of Cisco Collaboration platforms, applications, and hardware.
• Experience supporting large-scale enterprise voice networks in a complex, multi-site environment.
• Familiarity with government, aerospace, or large enterprise communications infrastructures.

The ideal candidate is a…