Unified Communications Engineer - Principal

Job description

In support of a challenging, critical, and rewarding program that provides integrated voice, video, and data services throughout the Information Technology lifecycle, Amentum is seeking a Unified Communications Engineer - Principal to join our dynamic team of IT professionals dedicated to fostering a positive and collaborative work environment. You must be a critical thinker, have a strong work ethic, and be able to work independently or as a member of a team in a dynamic environment. We value candidates who are detail-oriented while also being able to think and react quickly to emerging and unique problem sets. To be successful, you must be able to rapidly adapt and learn how to operate the front and back end of new products and processes.

Work Schedule

5 Days (Mon – Fri); 8 hrs/Day; 40 hrs/wkly

Essential Responsibilities

Develop and implement comprehensive unified communications solutions tailored to the specific needs of the organization, focusing on scalability, security, and optimal performance to ensure long-term effectiveness and adaptability to evolving business requirements

Install and set up unified communications systems, encompassing VoIP, video conferencing, instant messaging, and collaborative platforms, to ensure seamless integration and efficient functionality across the organization

Monitor and manage the performance and stability of unified communications infrastructure, proactively identifying and resolving issues, while conducting routine maintenance, updates, and security patches to maintain continuous, optimal operation

Integrate unified communications systems with other IT components, including network infrastructure, Active Directory, and cloud services, to create a cohesive and efficient technological environment that supports seamless communication and collaboration

Implement security protocols to safeguard communication channels, data, and endpoints, while adhering to security standards and regulations to maintain a secure and compliant environment

Offer technical support to end-users, troubleshoot and resolve communication-related issues, and provide training as needed to enhance user proficiency and system effectiveness

Develop and update comprehensive documentation for unified communications systems, covering configurations, procedures, and best practices to ensure clear guidance and consistency in system management and troubleshooting

Work closely with vendors and suppliers to acquire hardware, software, and services, while managing vendor relationships to maintain timely delivery, quality, and alignment with organizational needs

Create and uphold disaster recovery plans and procedures to maintain business continuity in the event of system failures

Minimum Requirements (Knowledge, Skills, and Abilities)

Must have active Top-Secret clearance with SCI or the ability to acquire Top Secret/SCI

At least 12 years of telecommunications technical experience installing, administering, and upgrading Cisco Unified Collaboration appliances and troubleshooting converged networks that leverage Cisco UC capabilities to interconnect Cisco, Tandberg, and Polycom endpoints, gateways, and teleconference bridge products

Knowledge in Cisco Unified Communications Manager, Cisco IM & Presence, Cisco Expressway, Cisco Video Teleconferencing Systems, and Cisco Session Border Controller, Cisco Meeting Server, Cisco Contact Center Express, VQ Conference Manager, Cisco Unity Connect, MS SQL Databases, Integrated Room Video Teleconferencing Control Systems, ELK Stack, and NetScout

Exceptional knowledge in Cisco Collaboration Call flow and SIP signaling

Knowledge of network fundamentals such as firewalls, ACLs, simple network monitoring protocol, dot1x authentication, and dynamic routing protocols

Experience with ESXi Virtualization, Nutanix, Docker.

Familiarity with DISA STIGs and FIPS publications

Must have the ability to independently deploy and maintain server-based dial plans, router-based dial plans, and the deployment and management of Cisco UC appliances

Experience configuring Cisco routers to act as VoIP gateways and demonstrate a strong understanding of Cisco IOS 12.X/15.X command syntax

Must be able to troubleshoot end-to-end performance issues associated with voice and video conferences involving IP and ISDN networks.

Must be able to work a 40-hour work week, normally Monday through Friday

Ability to work overtime during critical peaks and be available to meet last-minute requests for overtime if needed

Ability to travel (5-10%) primarily within 75 miles

Familiarity with MS Office applications such as Excel, Word, Outlook, SharePoint, Project and Visio

Exceptional attention to detail; excellent verbal and written communication skills; strong critical thinking, organizational, time-management, and problem-solving skills

Ability to work both independently and as part of a team in a dynamic environment

Security Clearance Required

Must have active Top-Secret clearance with SCI or TS with the ability to acquire SCI

Minimum Education

High School Diploma

Minimum Years of Experience

12 years of relevant experience

Required Certifications

Must possess a current Cisco Certified Network Associate (CCNA) Certification and one of the following 8140 IAT Level II or III baseline certifications:

Level II certs include – CCNA Security, GISCP, GSEC, Security+ CE, SSCP

Level III certs include – CASP CE, CCNP Security, CISA, CISSP (or Associate), GCED, GCIH

Preferred Qualifications

Bachelor’s degree in IT related field

Foundational knowledge and/or experience with Unified Messaging system, audio conference bridge systems and gateways, voice circuits, and crypto technologies for voice systems

Cisco Certified Network Professional (CCNP) Certification

Safety

Amentum enforces a safety culture whereby all employees have the responsibility for continuously developing and maintaining a safe work environment. As appropriate, each employee is responsible for completing all training requirements and fulfilling all self-aid/buddy aid responsibilities, participating in emergency response tasks and serving on safety committees and teams.

Quality

Quality is the foundation for the management of our business and the keystone to our goal of customer satisfaction. It is our policy to consistently provide services that meet customer expectations. Accordingly, each employee must conform to the Amentum Quality Policy and carry out job activities in compliance with applicable Amentum Quality System documents and customer contracts. Each employee must read and understand his/her Quality Management and Customer Satisfaction responsibilities.

Procedure Compliance

Each employee must read, understand and implement the general and specific operational, safety, quality and environmental requirements of all plans, procedures and policies pertaining to his/her job. Qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status.

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Compensation Details

The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.

Benefits Overview

Health, dental, and vision insurance

Paid time off and holidays

Retirement benefits (including 401(k) matching)

Educational reimbursement

Parental leave

Employee stock purchase plan

Tax-saving options

Disability and life insurance

Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.

Original Posting

07/24/2026 - Until Filled

Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.

Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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Worksite address

warrenton, VA, 22186, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.