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Senior VOIP Engineer
Washington, District of Columbia, United States
OnsiteFull Time
10+ YOE10+ years Cisco VoIP network engineering; 8+ years Cisco UCM; Security+; CCNP Voice; DoD Secret clearance; Bachelor's degree.
VoIP, Cisco UCM, Network Security, VPN, Encryption, STIGs, ServiceNow
1mo
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VoIP Engineer SME
Washington, District of Columbia, United States
$99k-$225k/yr OnsiteFull Time
10+ YOE10+ years implementing and maintaining Cisco VoIP infrastructure, 8+ years with Cisco UCM, ability to configure CUBE, Secret clearance, Bachelor\u0002s degree, Security+ and CCNP Voice and Collaboration certifications.
Cisco Unified Communications Manager (UCM), Cisco Unified Border Element (CUBE), ServiceNow, vIPER, STE, Definity, POTS, STIGS, DHCP, VPN, DNS
1w
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VoIP Engineer
Raleigh, North Carolina, United States
OnsiteFull Time
2+ YOEExpertise in carrier-grade SIP environments, SIP/RTP diagnostics, 2+ years VoIP experience, scripting (Python/Bash/Ansible/Github), SBC maintenance, and observability tooling.
Empirix, Wireshark, SIPp, HEPIC, Python, Bash, Ansible, Github, Ribbon, Kamailio, OpenSIPS, SIPP, sngrep, Homer/HEP
3w
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VoIP Engineer
Plano, Texas, United States
$285/day OnsiteFull Time
5+ YOE5+ years supporting enterprise VoIP/UC, experience with Cisco Webex Cloud Calling, SIP/RTP/SRTP, SIP trunking, networking fundamentals, E911, and strong communication skills.
Cisco Webex Cloud Calling, SIP, RTP/SRTP, SIP trunking, PSTN, TCP/IP, DNS/DHCP, VLANS, QoS, E911, ITIL
2mo
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VoIP Network Engineer (REMOTE)
United States
RemoteFull Time
Bachelor's degree; previous VoIP network engineer experience; knowledge of VoIP systems, IP protocols, and WAN/LAN; security awareness; strong troubleshooting and communication skills.
VoIP, Cisco Unity, Mitel, PBX, IP Protocols, Networking hardware, WAN, LAN, Security systems
4w
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Staff VoIP Engineer, Axon 911
New York, New York, United States
$171k-$228k/yr HybridFull Time
Deep experience with VoIP/UC and SIP, cloud platform experience (ideally AWS), familiarity with FreeSWITCH and Kamailio, production reliability focus, and willingness to participate in on-call rotations.
SIP, AWS, FreeSWITCH, Kamailio
3w
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Senior VoIP Engineer
Sacramento, California, United States
$9k-$17k/mo HybridFull Time
5+ YOEBachelor's or equivalent experience, valid California driver, 5+ years VoIP experience with enterprise Cisco voice/contact-center technologies, strong troubleshooting, design, and communication skills.
Cisco UCCE, Cisco PCCE, Cisco CUCM, Cisco UCCX, Cisco Unity, Cisco UCS, Calabrio, 2Ring, NEC Fusion
1w
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Lead VoIP Engineer – Voice Services Team Lead
Williamsport, Pennsylvania, United States
OnsiteFull Time
5+ YOEAssociate or Bachelor's in related technology or equivalent experience; strong VoIP, SIP, networking skills; leadership and project experience preferred; must obtain Pennsylvania Act 34, Act 151, and Act 114 clearances; valid driver’s license; able to lift 50 lbs.
VoIP, SIP
1mo
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VoIP Engineer SME
Washington, District of Columbia, United States
$99k-$225k/yr OnsiteFull Time
10+ YOE10+ years implementing Cisco VoIP infrastructure, 8+ years with Cisco UCM, experience with CUBE and SIP trunking, Secret clearance, Bachelor\u0002s degree, Security+ and CCNP Voice and Collaboration required.
Cisco Unified Communications Manager (UCM), Cisco Unified Border Element (CUBE), ServiceNow, DHCP, VPN, DNS, SIP, STIGS, STE, vIPER
1mo
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Sr. VOIP Engineer
Washington, District of Columbia, United States
$120k-$140k/yr OnsiteFull Time
10+ YOE10 years implementing and maintaining Cisco VoIP infrastructure, 8 years with Cisco Unified Communications Manager (UCM), ability to configure Cisco routers/switches/gateways, ServiceNow ticket support, Secret clearance, Bachelor's degree, Security+ and CCNP Voice and Collaboration.
Cisco Unified Communications Manager (UCM), ServiceNow, STIGS, STE, vIPER, Definity, POTS, Cisco routers, Cisco switches, Cisco gateways
2w
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Unified Communications VOIP Engineer
United States
RemoteFull Time
Must hold Secret clearance, have VoIP and government radio experience (LMR, PRC-117G, APX7500/8500, CM300/350), Linux and virtualization skills, and ability to travel ~25–35%. High school/GED required.
Mitel Unify OpenScape Voice, Mitel Unify Xpert Application, Cisco CUBE, Cisco Dial Peers, SIP, iDRAC, VMware vSphere/ESXi, RedHat KVM, SUSE, Debian, Ubuntu, PRC-117G, APX7500, APX8500, CM300, CM350
1mo
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Senior Voip Engineer
Quantico, Virginia, United States
OnsiteFull Time
5+ YOETop Secret/SCI clearance required; HS diploma; 5+ years communications systems experience with 3+ years on CUCM 12+; CCNP Collaboration or CLCOR; DoD 8570 IAT-II/IAM-II; experience with Cisco Unity/Presence/Emergency Responder/UCCX, SIP/SCCP/MGCP/DSN/PSTN/H.323; IPv4 routing.
Cisco Unified Communications Manager (CUCM), CUCM, Cisco Unity, Cisco Presences, Cisco Emergency Responder, Cisco UCCX, SIP, SCCP, MGCP, DSN, PSTN, H.323
1w
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Senior VOIP Engineer
Quantico, Virginia, United States
$80k-$115k/yr OnsiteFull Time
5+ YOE5+ years enterprise communications experience, 3+ years CUCM administration, Top Secret clearance with TS/SCI eligibility, CCNP Collaboration or CLCOR, DoD 8140 compliance, strong troubleshooting and documentation skills.
Cisco Unified Communications Manager (CUCM), Cisco Unity Connection, Cisco Finesse, Cisco IM&P, Unified Contact Center Express (UCCX), Cisco Emergency Responder, SIP, Session Border Controller (SBC), SCCP, MGCP, H.323, IPv4, STIGs
1mo
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Senior VoIP Operations & Reliability Engineer (Carrier-Class Voice Platform)
Newton, New Jersey, United States
OnsiteFull Time
Senior hands-on experience operating carrier-scale VoIP systems (SIP, Kamailio/OpenSIPS, Asterisk), reliability engineering, incident response, SLOs/SLIs, observability, and Linux automation.
Kamailio, Asterisk, OpenSIPS, Homer, HEP, sipp, sngrep, Wireshark, Prometheus, Grafana, Python, Lua, shell, CI/CD, PJSIP, ARI, AMI, FreeSWITCH, RADIUS, Diameter
1mo
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Senior VoIP Engineer - Level III (BAMC)
San Antonio, Texas, United States
OnsiteFull Time
6+ YOEUS citizen or permanent resident; Tier 3 federal background investigation; 6+ years progressive experience; Bachelor's degree or equivalent; IAT II and CE designation; at least one of CCNA Security, SSCP, CySA+, Security+ CE, GICSP, or GSEC required; DoD STIG and RMF experience.
Cisco Unified Communication Manager (CUCM), Cisco Unified Contact Center Express (UCCX), Cisco Unified Border Element (CUBE), SIP Trunks, H.323, MGCP, Session Border Controller (SBC), Survivable Remote Site Telephony (SRST), QoS, VLAN, 802.1X, E.164, DoD STIGs, Risk Management Framework (RMF), packet capture
2mo
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Network Operations Engineer - VoIP
United States
RemoteFull Time
2+ YOEVoIP engineer with 2+ years in VoIP systems; Linux, Asterisk, SIP/MGCP/H.323; scripting experience; able to lead projects and travel up to 20%.
Asterisk, PBX, SIP, H.323, MGCP, ISDN, RTP, Linux, Python, Bash, JavaScript, PHP
2d
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VTC/VOIP Systems Administration, Associate
Fort Huachuca, Arizona, United States
$51k-$82k/yr OnsiteFull Time
0+ YOEActive Secret clearance, Security+ within 90 days, experience provisioning/operating/troubleshooting multi-vendor VTC/VoIP systems, RMF/eMASS/STIG support, and technical documentation skills.
Video Teleconference (VTC), Application Aware Firewalls, Video Communication Servers (VCS), Cisco Meeting Server (CMS), Telepresence Management Suite (TMS), Polycom Multipoint Control Units (MCUs), Distributed Media Application (DMA), VTC codecs, RMF, eMASS, STIG
2d
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VTC/VOIP Systems Administration, Associate
Fort Huachuca, Arizona, United States
$51k-$82k/yr OnsiteFull Time
0+ YOEActive Secret clearance required; Security+ obtainable within 90 days. 0–4 years experience depending on degree. Expertise in provisioning, securing, operating, and troubleshooting multi-vendor VTC/VoIP technologies and DoD RMF compliance.
Video Teleconference (VTC), Application Aware Firewalls, Video Communication Servers (VCS), Cisco Meeting Server (CMS), Telepresence Management Suite (TMS), Polycom Multipoint Control Units (MCUs), Distributed Media Application (DMA), VTC codecs, eMASS, STIG, Risk Management Framework (RMF)
3w
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Senior Software Engineer – Core VoIP / SIP Backbone
Bellevue, Washington, United States
$150k-$180k/yr HybridFull Time
7+ YOE7+ years software development with 4+ years on large-scale VoIP/SIP systems; strong Golang; experience with Kamailio/OpenSIPS and FreeSWITCH/Asterisk; Linux, networking, packet-level debugging, and integration with databases/backends.
Golang, Kamailio, OpenSIPS, FreeSWITCH, Asterisk, SIP, RTP, SDP, TLS, SRTP, tcpdump, Wireshark, PostgreSQL, MariaDB, MySQL, Kubernetes, AWS, GCP, WebRTC, SIP over WebSockets
1w
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Senior Software Engineer – VoIP
Lehi, Utah, United States
HybridFull Time
6+ YOE6+ years building production systems, end-to-end ownership, VoIP platform experience (FreeSwitch/Kamailio/OpenSIPS/Asterisk), EM/AI tooling familiarity, strong communication and troubleshooting skills.
Claude Code, Codex, Cursor, Copilot, FreeSwitch, Kamailio, OpenSIPS, Asterisk, WebRTC
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