Senior Telecommunications Engineering Specialist, Unified Communications

General information

Requisition # R67490 Locations USA-Remote Work Posting Date 04/30/2026 Security Clearance Required Secret Remote Type Fully Remote Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!

***This is for a future opportunity***

MANTECH seeks a motivated, career and customer-oriented Senior Telecommunications Engineering Specialist, Unified Communications to join our CASTLE-NET Program team.  This is a remote position.    

Be a part of an agile team to provide the U.S Army Corps of Engineers (USACE) OCIO/G-6 with agile, innovative, customer focused, and cost-effective integrated enterprise IT support services in support of the USACE vision of engineering solutions for the Nation’s toughest challenges.  

Responsibilities include but are not limited to:

• Providing administrative, operational, and management support for the CASTLE-NET unified communications infrastructure, including voice and video conferencing systems.

• Leading a team to support current infrastructure systems, platforms, tools, and components while maintaining standardized setups.

• Assisting customers with virtual instruction on communication systems and installing and configuring handsets and video endpoints.

• Planning and leading major technology assignments while evaluating performance results to recommend changes affecting project success.

• Delivering world-class IT services and responsive customer support to exceed the expectations of USACE OCIO/G-6 IT end-users.

• Functioning as a technical expert across multiple project assignments and supervising staff to ensure technical requirements are met.

Minimum Qualifications:

• Bachelor’s degree in Telecommunications, IT, or a related field; or an Associate degree with 2+ years of experience; or 4+ years of relevant experience.

• 8+ years of experience in unified communications, with at least 3 years in a leadership role.

• Extensive knowledge of UC technologies such as VoIP, SIP, Microsoft Teams, and Cisco WebEx.

• Proficiency in installing and configuring telephony and video endpoints, network protocols, and security best practices.

• Must possess and maintain a 8140 IAT Level II certification.

Preferred Qualifications:

• Relevant certifications such as CCNP Collaboration or Microsoft Certified: Teams Administrator.

• Familiarity with the USACE IT environment, regulatory requirements, and data