Senior Unified Communications Engineer - Onsite DC

Socket.dev; Washington (District of Columbia); On-site; USD 150,000 - 190,000; Full time

Job summary

NCC in Washington, D.C. is seeking an Unified Communications Engineer to lead the design, integration, and maintenance of voice, video, and data networks across enterprise platforms.

This onsite role requires deep expertise in Cisco CUCM, Unity Connection, Expressway, and Microsoft Teams Voice, with strong emphasis on security and performance. The successful candidate will drive SOPs, engineering documentation, and cross-functional collaboration while mentoring teammates and delivering

Qualifications

• Active Top Secret security clearance required, willingness to obtain TS/SCI CI Polygraph.
• Bachelor’s degree in a related field.
• 10+ years of enterprise telecommunications and Unified Communications engineering/administration experience.
• Expert knowledge of voice, video, collaboration systems, and supporting networks.
• Experience with Cisco CUCM, Unity Connection, IM & Presence, Expressway, and Microsoft Teams Voice.
• Strong knowledge of SIP, H.323, MGCP, UDP, RTP, SRTP, and TLS protocols.
• Experience with QoS, BGP, OSPF, MPLS, IPSEC, Cisco CUBE, Oracle SBC, and related network technologies.
• Experience with ESXi virtualization, Cisco UCS, and cloud environments (IaaS, PaaS, SaaS).
• Knowledge of security controls, certificates, and compliance standards such as DISA STIGs.
• Strong leadership, decision-making, and project management skills.
• Demonstrated attention to detail.
• Excellent communication, interpersonal, and emotional intelligence skills.
• Proven ability to collaborate cross-functionally and lead teams effectively.

Responsibilities

• Serve as the senior technical authority for enterprise Unified Communications environments, providing leadership on strategic initiatives and mission-critical assignments.
• Establish goals, roadmaps, and project plans aligned with organizational objectives.
• Design, engineer, integrate, and optimize enterprise voice, video, and collaboration platforms including Cisco CUCM, Unity Connection, Expressway, and Microsoft Teams Voice.
• Provide Tier 4 troubleshooting, root-cause analysis, and resolution for complex outages and performance issues.
• Analyze network performance, traffic flows, interfaces, and protocols to recommend improvements and modernization efforts.
• Integrate UC solutions with Active Directory, cloud services, virtualization platforms, and network infrastructure.
• Implement secure communications using TLS, SRTP, certificates, IPSEC, and ensure compliance with applicable standards such as DISA STIGs.
• Lead projects such as technology refreshes, data center migrations, and collaboration platform enhancements.
• Partner with clients and stakeholders to assess needs, analyze data, and recommend solutions.
• Develop and maintain SOPs, engineering documentation, diagrams, and technical standards.
• Mentor team members, advise leadership, delegate effectively, and collaborate across all organizational levels.
• Perform other duties as assigned.

Skills

Leadership

Project management

Communication

Interpersonal skills

Attention to detail

Collaboration

Education

Bachelor’s degree

Tools

Cisco CUCM

Unity Connection

Expressway

Microsoft Teams Voice

ESXi virtualization

Cisco UCS

Oracle SBC

Job description

NCC in Washington, D.C. is seeking an Unified Communications Engineer to lead the design, integration, and maintenance of voice, video, and data networks across enterprise platforms.

This onsite role requires deep expertise in Cisco CUCM, Unity Connection, Expressway, and Microsoft Teams Voice, with strong emphasis on security and performance. The successful candidate will drive SOPs, engineering documentation, and cross-functional collaboration while mentoring teammates and delivering