Senior Unified Communications Engineer

Amentum; Warrenton (VA); On-site; USD 179,000 - 242,000; Full time

Benefits offered by this job

Health, dental, and vision insurance

Paid time off and holidays

401(k) matching

Job summary

Amentum is seeking a Principal Unified Communications Engineer to design, implement, and support advanced UC solutions across the enterprise. The role emphasizes VoIP, video conferencing, collaboration platforms, and secure integration with network and cloud services.

Ideal candidates hold a Top-Secret clearance (SCI eligible) with extensive Cisco UC expertise, including Manager/Expressway and SIP signaling, and can operate independently or in a team to meet demanding schedules and security

Qualifications

• Active Top-Secret clearance or ability to acquire SCI
• 12+ years of telecom/UC engineering experience
• Expertise with Cisco Unified Communications Manager and related Cisco UC tools
• Experience with SIP signaling and Cisco call flow
• Knowledge of network security, firewalls, and STIGs/FIPS
• Participation in server and dial plan deployments across UC ecosystems

Responsibilities

• Develop and implement scalable unified communications solutions
• Install and configure UC systems (VoIP, video, IM, collaboration)
• Monitor performance and apply maintenance and security patches
• Integrate UC with network, AD, and cloud services
• Implement security controls for communication channels and endpoints
• Provide end-user support and training on UC systems
• Create and maintain documentation for UC environments
• Coordinate with vendors for hardware, software, and services
• Develop disaster recovery plans for UC services

Skills

Top-Secret clearance

12+ years experience

Cisco UC

SIP signaling

Networking fundamentals

ESXi/Nutanix/Docker

DISA STIGs/FIPS

VTC/UC appliances

Team/independent work

Education

High School Diploma

Tools

Cisco UC appliances

Cisco UC Manager/Expressway/IM&P

ESXi/Nutanix/Docker

MS SQL/ELK/NetScout

Job description

Amentum is seeking a Principal Unified Communications Engineer to design, implement, and support advanced UC solutions across the enterprise. The role emphasizes VoIP, video conferencing, collaboration platforms, and secure integration with network and cloud services.

Ideal candidates hold a Top-Secret clearance (SCI eligible) with extensive Cisco UC expertise, including Manager/Expressway and SIP signaling, and can operate independently or in a team to meet demanding schedules and security