About the role Insight Xcite is seeking senior- and expert-level Voice / VoIP Engineers in Herndon, Virginia, to design, implement, and troubleshoot secure enterprise voice and video solutions. Key Responsibilities Design, configure, and support enterprise voice, video, and unified-communications services. Troubleshoot call quality, signaling, routing, interoperability, and network-performance issues. Work with SIP, RTP, H.323, QoS, session border controllers, call routing, encryption, firewalls, and VPNs. Integrate voice services with LAN/WAN, cloud, and other enterprise infrastructure. Produce diagrams, operating procedures, test plans, and technical documentation. Required Qualifications Significant enterprise VoIP or unified-communications engineering experience. Strong knowledge of TCP/IP, voice protocols, call routing, and troubleshooting methods. Experience with Cisco voice platforms or comparable enterprise technologies. Preferred Qualifications Experience supporting secure government or mission environments. Experience with automation, monitoring, cloud connectivity, or voice-security controls. Relevant Cisco or networking certifications. Clearance Requirement Due to the nature of our work, Insight Xcite does not sponsor or process security clearances at this time. Applicants must currently possess an active TS/SCI with Full-Scope Polygraph (FSP) to be considered for employment. Please do not apply if you do not currently hold this level of clearance. Work Location Requirement All Insight Xcite positions are onsite. We do not offer remote or hybrid opportunities. Applicants must be willing and able to work in person at the designated customer location. What We Offer At Insight Xcite, we believe exceptional employees deserve meaningful support, competitive compensation, and benefits that make a real difference. We are committed to investing in our team both professionally and personally. 100% employer-paid medical, dental, and vision coverage for employees Flexible paid time off, subject to manager approval and business needs, plus annual Flex Bonus earning opportunities Annual compensation and performance review process, including opportunities for salary increases 401(k) with immediate vesting and company contributions with no employee match requirement Flexible scheduling options Insight Essentials lifestyle and wellness benefit Company-supported pet insurance Employee referral bonus program Professional development and career growth support Opportunity to support impactful national security missions in a highly collaborative environment Additional employee programs and benefits available Candidate Authenticity and Use of AI AI tools may be used to help format or draft application materials; however, all submitted information must accurately represent the candidate's own experience, qualifications, and work history. Candidates should be prepared to discuss and verify the information provided About Insight Xcite Insight Xcite is a mission-focused consulting firm supporting critical government programs through data-driven engineering, technology, cybersecurity, analytics, and operational expertise. We partner with customers across the national security community to deliver innovative solutions in highly secure, fast-paced environments. Our teams are composed of experienced professionals who thrive on collaboration, accountability, and supporting mission success. We value technical excellence, integrity, and employees who are committed to solving complex challenges and making an impact. The pay range for this role is: 175,000 - 220,000 USD per year(Government Client Site - Herndon VA)