VoIP Engineer – Secret Clearance Required

Reston Consulting Group, Inc.

VoIP Engineer with active Secret clearance responsible for managing voice communications infrastructure. Supporting federal clients in Washington, DC through design, implementation, and maintenance of systems.

Posted 8/3/2026full-timeWashington • District of Columbia, Washington • 🇺🇸 United StatesMid-LevelSenior💰 $130,000 - $145,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in designing, configuring, and maintaining enterprise VoIP and telephony systems, with a strong focus on operational support and security. Proficient in managing telecommunications infrastructure, including E911 services and unified communications, while ensuring compliance with DoD standards.

Highest-signal resume keywords

Enterprise VoIP SupportCisco Unified Communications Manager (CUCM)DoD 8570/8140-Compliant CertificationTelecommunications Moves, Adds, and Changes (MAC)E911 Systems Administration

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

VoIP System ConfigurationTelephony Infrastructure MaintenanceCall Processor ManagementSoftphone ConfigurationWi-Fi Phone SupportVoice Gateway AdministrationTelecommunications SecurityTechnical Documentation DevelopmentTroubleshooting Telephony SystemsCapacity Improvement Recommendations

Soft Skills

Analytical Problem-SolvingStrong Communication SkillsMulti-Priority ManagementTeam CollaborationCustomer Privacy Protection

Tools & Technologies

Cisco Unity ConnectionCisco JabberEmergency Broadcast System (EBS)Voicemail PlatformsCall Detail Reporting Tools

Certifications & Qualifications

Active Secret ClearanceBachelor's Degree in Related FieldDoD 8570/8140-Compliant Certification

Industry Keywords

VoIPVideo Teleconferencing (VTC)Unified CommunicationsTelephony SystemsEmergency Call Routing

Tech Stack

Tools & technologies

SwitchingUnityVoIP

About the role

Key responsibilities & impact

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

Requirements

What you’ll need

Active Secret Clearance (or higher)
U.S. Citizenship required
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
Excellent troubleshooting, analytical, and problem-solving skills
Strong written and verbal communication skills
Ability to manage multiple priorities in a fast-paced environment
Ability to participate in an on-call rotation and occasional evening or weekend support

Benefits

Comp & perks

Comprehensive benefits package including medical, dental, vision
Paid time off
Paid holidays
401(k) with company match
Opportunities for technical training and certification