Unified Communications Engineer

About Us:

VT-ARC a technical services and applied research company has built an organizational culture marked by four primary values: Teamwork Integrity Excellence and Service. Integral to our success is our staffs enthusiasm for solving tough problems by working together in teams to get the job done. We foster a culture where every employees contribution is valued and performed with integrity while maintaining a fun work environment. VT-ARC strives for excellence in all that is done for our clients and such achievement is recognized through service/merit awards. Moreover we promote a sense of community larger than VT-ARC alone where staff and institutional resources can be applied in service to our country.

We are proud to be the recipient of the Best Workplace in Defense Award by Emergent Magazine an honor that recognizes companies with positive cultures that not only impact their people but also make a meaningful difference in the community.

About You:

You are a Senior to Staff level Unified Communications Engineer with experience implementing integrating and modernizing secure voice video collaboration conferencing call control and mission communications capabilities in classified or high-assurance environments. You thrive in small highly capable engineering teams where ownership accountability and technical depth matter. You are comfortable taking a system from design through implementation and into operational sustainment and you enjoy working directly with architects engineers technicians and mission stakeholders to solve complex communications challenges.

You understand how UC services depend on WAN LAN QoS routing segmentation encryption identity certificates endpoint management session border control directory services and operational monitoring. You can translate communications requirements into deployable supportable UC solutions.

You are adaptable and comfortable working hands-on with UC platforms and coordinating closely across technical teams and individual contributors. You have a mission focus and take pride in building systems the right way and supporting them end-to-end.

Position Overview:

VT-ARC is seeking a Senior to Staff level Unified Communications Engineer to support secure UC engineering mission communications integration implementation and modernization for mission-critical programs within TS/SCI environments.

This role is focused on senior-level UC engineering across the full lifecycle from requirements interpretation and architecture input through detailed design implementation planning integration validation documentation and transition to operations. The role supports voice video collaboration call routing conferencing endpoint gateway and transport integration across classified multi-enclave and air-gapped environments.

The Unified Communications Engineer will partner with the programmatic and technical team to ensure UC capabilities are secure available interoperable and operationally supportable. You have a mission focus and take pride in building systems the right way and supporting them end-to-end.

Active Top Secret/SCI clearance is required.

Duties/Responsibilities:

• Support end-to-end UC engineering activities including architecture input detailed design implementation planning integration validation and operational transition.
• Design implement integrate and modernize secure voice video collaboration conferencing call control and mission communications capabilities across classified and high-assurance environments.
• Develop and validate UC designs that account for network transport QoS routing segmentation encryption identity certificates endpoint management high availability and sustainment.
• Implement and troubleshoot UC components such as call managers voice gateways session border controllers SIP trunks dial plans conferencing bridges VTC systems and collaboration endpoints.
• Coordinate UC transport requirements with WAN LAN crypto identity cybersecurity infrastructure and operations teams.
• Develop UC implementation plans call flow diagrams dial plans test procedures configuration standards and operational support documentation.
• Support lab validation proof-of-concept demonstrations technical pilots cutovers integration events and operational acceptance testing.
• Support RMF ATO STIG vulnerability remediation and cybersecurity compliance activities for UC infrastructure.
• Mentor junior UC engineers and promote engineering standards troubleshooting discipline and documentation quality.

Required Education Certification Skills Capabilities:

• Demonstrated senior-level experience implementing and supporting enterprise UC voice video collaboration conferencing or mission communications environments.
• Hands-on experience with UC platforms and technologies such as Cisco Unified Communications Manager voice gateways SIP SBC/CUBE VTC collaboration endpoints or equivalent systems.
• Strong practical knowledge of SIP RTP/SRTP QoS dial plans call routing certificates directory integration high availability and UC troubleshooting.
• Experience supporting classified TS/SCI multi-enclave internet-connected or air-gapped communications environments.
• Ability to coordinate technical dependencies across WAN LAN identity encryption cybersecurity endpoint and operations teams.
• Experience supporting RMF processes ATO documentation STIG compliance security controls or equivalent cybersecurity compliance activities for communications infrastructure.
• Ability to produce clear technical documentation diagrams implementation guides test procedures and operational support materials.

Desired Education Certification Skills Capabilities:

• Professional certifications such as CCNP Collaboration CCNP Enterprise Security CISSP Microsoft or equivalent technical credentials.
• Experience integrating UC services with Type 1 encryption classified networks video teleconferencing cross-domain dependencies or mission communications systems.
• Experience with Microsoft Teams Exchange identity federation certificate management or hybrid communications environments where applicable.
• Experience with UC monitoring call quality analytics packet capture voice/video troubleshooting and performance engineering tools.
• Familiarity with DoD UC security requirements STIGs E911 dependencies endpoint hardening and operational continuity planning.
• Experience developing migration plans cutover plans user transition plans and operational runbooks.

Primary Work Location: Work is expected to be fully onsite in Arlington VA.

Special Work Conditions: Occasional travel may be required; up to 10%

Security:

• Must be a U.S. Citizen
• Active Top Secret/SCI clearance is required

Competitive Salary: VT-ARC offers a competitive salary and benefits package designed to attract and retain senior technical talent supporting mission-critical programs.

Salary: $180000-$210000/yr. based on skills experience clearance technical depth and mission alignment.

Virginia Tech Applied Research Corporation: VT-ARC is a 501(c)(3) non-profit R&D organization affiliated with Virginia Polytechnic Institute and State University (Virginia Tech or VT). Our mission is to provide superior analytic and technology solutions across multiple domains by leveraging Virginia Techs multidisciplinary research and innovation ecosystem. With unique access to the broad and rich research enterprise found at Virginia Tech VT-ARC forms multi-disciplinary teams to apply innovative solutions to the real-world problems that strain our social political industrial and economic foundations.

To learn more about VT-ARCs Benefits Perks Culture & more visit our Careers page: Tech Applied Research Corporation is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race color religion sex sexual orientation gender identity national origin age disability veteran status or any other status protected by law. As a federal contractor we are committed to providing equal employment opportunity and affirmative action for qualified individuals with disabilities under Section503 of the Rehabilitation Act of 1973. If you need a reasonable accommodation to complete the application or interview process please contact Human Resources at

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