VoIP Engineer - Secret Clearance REQUIRED

Location: Washington, DC (100% On-Site)

Salary Range: $130,000 to $145,000

Work Schedule: Full-Time | 100% On-Site | Five (5) Days per Week

Clearance Requirement:
Active Secret Clearance REQUIRED | U.S. Citizenship Required | DoD 8570/8140-Compliant Certification Required

Who We Are

RCG, Inc. is a growing federal contracting company proudly Certified™ as a Great Place to Work®. We are committed to fostering a culture of innovation, collaboration, and excellence while delivering high-quality technology solutions to our federal government clients.

The Opportunity

RCG is seeking a VoIP Engineer with an active Secret clearance to support an ongoing federal contract in Washington, DC
. This is a full-time, 100% on-site position requiring five (5) days per week in the office
. 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.

What You ll Do

• 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
• 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.

Required Qualifications

What We re Looking For

• 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.

Preferred Qualifications

• Experience supporting federal government telecommunications environments.
• Experience administering SIP trunk and voice gateways.
• Experience with telecommunications…