Senior Voice Engineer

Job Title: Senior Voice Engineer Location: Arlington, VA Type: Contract Contractor Work Model: Hybrid u2013 onsite and remote Responsibilities + Configure, test, deploy, maintain, and troubleshoot cloud and on-premise telecom solutions and services + Monitor system performance and call quality, leading efforts to resolve performance issues + Integrate third-party applications with Teams Phone, Five9, and other County voice services + Assess impacts and risks of scheduled and unplanned service updates and alerts + Serve as a technical subject matter expert for large technical initiatives + Provide Tier 3 response and support for complex service impacting incidents and problems + Work closely with internal staff (security, network, AD) and managed service providers for solution implementation and issue resolution + Recommend, evaluate, develop, and implement new products to enhance service offerings + Lead the implementation of changes to existing solutions + Review and approve technical changes submitted through the formal change management process + Contribute to the development of long-term strategy Requirements + 10+ years of telecommunications and networking experience with PSTN, VoIP, call centers, IVR, UCaaS, CCaaS, SIP, SBCs, QoS, cloud + Direct experience with Cisco Call Manager and Teams Phone + Preference for experience with Five9 or similar CCaaS product + Experience working in federal, state, or local government environments + Excellent troubleshooting and analytical skills + Strong collaboration and communication skills Ref: #851-Rockville-S1 System One, and its subsidiaries including Joulu00e9, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

Created: 2026-04-30