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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # VoIP Engineer - **Company:** TekSynap View all jobs - **Location:** Washington, DC, United States - **Experience:** Expert - **Salary:** $100,000.0 - $130,000.0 - **Contract:** Permanent contract - **Skills:** VoIP, Cisco Unified Communications Manager, Linux, Information Management, Instant Messaging Technology, Jabber, Routing, Cisco WebEx, Wi-Fi Technology, Data Logging, Internet Protocol Telephony, Firewalls (Computer Science), SC Clearance, Information Technology, Cisco - **Published:** August 13, 2026 - **Apply:** https://www.careerjet.com/job/usaa4ed3a7e9fb5ac714caf444ba9175fe/eaa ## About the Role * Active Secret Clearance (or higher). * Bachelor's degree in computer science, Engineering, Information Technology, Business Management, or a related field (or equivalent experience). * Minimum four (4) years of experience supporting enterprise VoIP and Video Teleconferencing (VTC) environments. * Must hold DoD 8570/8140-Compliant Certification * Experience administering enterprise VoIP and unified communications infrastructure. * Experience supporting: * VoIP call processors * Softphones * Wi-Fi phones * Voice gateways * E911 systems * Experience performing telecommunications Moves, Adds, and Changes (MAC). * Experience with Cisco Unified Communications Manager (CUCM), 15.0 preferred. * Experience with Cisco Unity Connection. * Experience with Cisco Jabber. * Strong understanding of voice networking, routing, switching, and telephony systems. * Ability to participate in an on-call rotation and occasional evening or weekend support., * Experience supporting federal government telecommunications environments. * Experience administering SIP trunk and voice gateways. * Experience with telecommunications security and voice firewalls. * Experience migrating VoIP systems in modernization efforts. * Experience in Teams Telephony or similar virtual cloud PBX solution (e.g. Webex, Broadworks), While performing the duties of this job, the employee is regularly required to use hands to grip, handle, or feel; reach with hands and arms; and talk or hear. The employee is regularly required to stand; walk; sit; climb or balance; and stoop, kneel, crouch, or crawl. The employee is regularly required to lift up to 10 pounds. The employee is frequently required to lift up to 25 pounds; and up to 50 pounds. The vision requirements include close vision, distance vision, peripheral vision, depth perception, and ability to adjust focus. WORK AUTHORIZATION/SECURITY CLEARANCE * U.S. Citizenship * Secret Clearance ## Description * Design, install, configure, maintain, and support enterprise VoIP and telephony infrastructure. * Work with Federal clients on migration to modern architecture (e.g. Teams telephony). * Perform operational support and sustaining engineering for analog, digital, and VoIP telephone systems. * Install, configure, and maintain telephone system hardware, cabling, software, and associated infrastructure. * Support Moves, Adds, and Changes (MAC) activities across multiple customer locations. * Configure and maintain VoIP phones, softphones, Wi-Fi phones, call processors, gateway systems, and E911 services. * Maintain VoIP system interfaces and perform programming to ensure seamless connectivity. * Administer telephone firewall logging, monitoring, and security policies. * Maintain E911 infrastructure and emergency call routing. * Maintain EBS (Emergency Broadcast System). * Provide translations and routing for cellular and remote VoIP 911 services. * Monitor trunk utilization and recommend capacity improvements. * Generate telephone call detail reports and provide near real-time reporting for authorized personnel. * Support voice mail platforms, automated attendants, announcements, broadcast lists, and user messaging services. * Configure and maintain enterprise telephony features including: * Call forwarding * Call transfer * Three-way and six-way conferencing * Hunt groups * Call park * Call pickup * Caller ID * Speed dial * Voicemail services * Develop user guides, operating procedures, and technical documentation. * Provide operator services, directory assistance, and conference call support. * Protect customer privacy and telecommunications security. * Participate in after-hours support, scheduled maintenance windows, and an on-call rotation. * Support major customer events requiring evening or weekend coverage., We are seeking a VoIP Engineer with an active Secret clearance for a full-time position as part of an ongoing contract in Washington, DC. The selected candidate will design, implement, maintain, and optimize enterprise voice communications infrastructure, including VoIP, unified communications, E911 services, and telephony systems supporting mission-critical federal operations throughout the Washington, DC metropolitan area. TekSynap is a fast-growing high-tech company that understands both the pace of technology today and the need to have a comprehensive well planned information management environment. "Technology moving at the speed of thought" embodies these principles - the need to nimbly utilize the best that information technology offers to meet the business needs of our Federal Government customers., By applying to a role at TekSynap you are providing consent to receive text messages regarding your interview and employment status. If at any time you would like to opt out of text messaging, respond "STOP". As part of the application process, you agree that TekSynap Corporation may retain and use your name, e-mail, and contact information for purposes related to employment consideration. Additional Job Information WORK ENVIRONMENT AND PHYSICAL DEMANDS The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of the job. Reasonable accommodation may be made to enable individuals with disabilities to perform the essential functions. * Location: Washington, D.C. * Type of environment: Varies * Noise level: Low * Work schedule: Schedule is day shift Monday - Friday. May be requested to work evenings and weekends to meet program and contract needs. * Amount of Travel: Less than 10%, Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice. TekSynap is a drug-free workplace. We reserve the right to conduct drug testing in accordance with federal, state, and local laws. All employees and candidates may be subject to drug screening if deemed necessary to ensure a safe and compliant working environment. Many positions require specific certifications and/or the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. Applicants who accept an offer of employment may be subject to investigations performed by TekSynap and/or the Government to verify the candidate meets the required qualifications and other eligibility requirements. EQUAL EMPLOYMENT OPPORTUNITY In order to provide equal employment and advancement opportunities to all individuals, employment decisions will be based on merit, qualifications, and abilities. TekSynap does not discriminate against any person because of race, color, creed, religion, sex, sexual orientation, gender identity, protected veteran status, national origin, disability, age, genetic information or any other characteristic protected by law (referred to as "protected status"). This nondiscrimination policy extends to all terms, conditions, and privileges of employment as well as the use of all company facilities, participation in all company-sponsored activities, and all employment actions such as promotions, compensation, benefits, and termination of employment. TekSynap is committed to ensuring that our online application process provides an equal employment opportunity to all job seekers, including individuals with disabilities. If you believe you need a reasonable accommodation in order to search for a job opening or to submit an application, please contact for assistance., MANTECH seeks a motivated, career and customer-oriented VoIP Systems Engineer to join our team in McLean, VA. In this role, you'll combine expertise in telephony systems, Linux ser… + 12 days ago, VoIP Engineer SME The Opportunity: Supports the development of new Voice over IP (VoIP) networks and enhancements to production networks. 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