VoIP / UC Engineer, MSP Environment

Back Bay Networks

VoIP/Unified Communications Engineer supporting managed client base voice environments. Hands-on role focusing on VoIP systems, SIP communications, and call flow design.

Posted 7/8/2026full-timeDover • New Hampshire • 🇺🇸 United StatesJuniorMid-Level💰 $75,000 per yearWebsite

Tech Stack

Tools & technologies

FirewallsTCP/IPVoIP

About the role

Key responsibilities & impact

Design, configure, and support VoIP and UC systems across multiple client environments.
Build and maintain call flows, auto attendants, ring groups, hunt groups, and dial plans.
Deploy and support platforms such as Elevate UC, Teams Phone, RingCentral, and similar solutions.
Manage SIP trunks, number provisioning, failover routing, and voice services.
Diagnose and resolve call quality issues (latency, jitter, packet loss, one-way audio).
Analyze SIP signaling and call paths to identify and resolve issues.
Monitor system performance and implement improvements to ensure reliability.
Configure and troubleshoot VLANs, QoS, and network settings impacting voice traffic.
Work with firewalls and routers to ensure proper SIP/RTP handling (NAT, ACLs, QoS).
Collaborate with internal engineers on network-related VoIP issues.
Work directly with clients to implement solutions and resolve issues.
Handle adds, moves, and changes (AMCs) across customer environments.
Coordinate with carriers and vendors to resolve external voice and routing issues.
Maintain clear, accurate documentation of systems, call flows, and configurations.

Requirements

What you’ll need

2–5+ years of hands-on experience with VoIP or Unified Communications systems
Experience with at least one platform (Elevate UC, Teams Phone, RingCentral, Zoom Phone, etc.)
Strong understanding of SIP, call routing, and dial plans
Solid networking fundamentals (VLANs, QoS, TCP/IP)
Experience in troubleshooting call quality and connectivity issues
Ability to manage work across multiple clients or environments
Nice to Have
Experience with SBCs, media gateways, or ATAs
Microsoft Teams Voice or VoIP-related certifications
Firewall configuration for VoIP traffic (NAT, QoS rules, SIP handling)
Experience with call center features (ACD, reporting, analytics)
Prior experience in an MSP environment
Basic cabling or low-voltage experience

Benefits

Comp & perks

Health, dental, and vision insurance
Paid time off and holidays
Company Vehicle for client travel
Ongoing training and certification support

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

VoIP SystemsSIPCall RoutingDial PlansVLAN ConfigurationQoSTCP/IPCall Quality AnalysisFirewall ConfigurationMedia Gateways

Soft Skills

Client CollaborationProblem SolvingDocumentation

Certifications

Microsoft Teams Voice CertificationVoIP-Related Certifications