VoIP Engineer

Bandwidth • Raleigh, NC

6h

About The Position

At Bandwidth, we shape how the world connects. We're the global communications software company and Tier 1 network operator with global reach. The voice, messaging, and emergency services infrastructure behind the brands and apps you're using every day. Because we own the network we build on, the problems you'll solve here are bigger, more complex, and more impactful. And as communications shifts to AI, we're the infrastructure layer making it possible. We call ourselves BANDmates because building something this big takes collaboration, different perspectives, and the freedom to bring your authentic self to the table. We're experts who speak like humans. Ready to build what's next? #JoinTheBand We are seeking a VoIP Engineer with a modern engineering mindset to join Bandwidth's Network Operations team. You possess expertise in SIP and carrier-grade environments, and are driven to maintain the highest levels of quality. This role is critical for ensuring reliable, secure SIP connectivity across multiple carrier platforms and enterprise environments.

Requirements

• 2-3 years of hands-on VoIP engineering experience, with a heavy emphasis on carrier-grade SIP environments.
• Expert-level knowledge of SIP signaling (INVITE, BYE, etc.), SDP negotiation, and RTP/RTCP.
• 1-3 years of proficiency in Python, Bash, Ansible, or Github for automating provisioning and troubleshooting workflows.
• Hands-on experience with maintaining and upgrading traditional SBCs (i.e. Ribbon), along with familiarity with open-source technologies (e.g., Kamailio, OpenSIPS).
• Proficiency with diagnostic tools such as Empirix, Wireshark, SIPP, sngrep, and Homer/HEP.

Nice To Haves

• Direct experience with carrier-to-carrier SIP interconnects and carrier-grade voice network design.
• Experience with Least Cost Routing and complex routing logic.
• Familiarity with TLS, SRTP, and regulatory compliance including STIR/SHAKEN and E911.
• Experience deploying voice services in containerized or cloud-native environments.
• Solid knowledge of IP, DNS, and routing protocols.

Responsibilities

• Test, deploy, and maintain SIP solutions with global carriers to ensure reliability, compliance, and optimal routing.
• Collaborate with R&D teams to integrate SIP services from SBC edge to custom voice core.
• Deploy, Upgrade, and Maintain our Core Voice infrastructure, including our SBC’s and policy servers.
• Serve in an on-call rotation for urgent, high visibility issues.
• Build and implement scripts to reduce operational burden, replacing manual workflows.
• Maintain "Documentation as Code," including SIP call flow diagrams, as well as troubleshooting and other functional procedures.
• Act as an escalation point for complex SIP/RTP problems.
• Use advanced tools like Empirix, Wireshark, SIPp, and HEPIC to analyze call flows and media streams.

Benefits

• 100% company-paid Medical, Vision, & Dental coverage for you and your family with low deductibles and low out-of-pocket expenses.
• All new hires receive four weeks of PTO.
• PTO Embargo. When you take time off (of any kind!) you’re embargoed from working. Bandmates and managers are not allowed to interrupt your PTO – not even with email.
• Additional PTO can be earned throughout the year through volunteer hours and Bandwidth challenges.
• “Mahalo moments” program grants additional time off for life’s most important moments like graduations, buying a first home, getting married, wedding anniversaries (every five years), and the birth of a grandchild.
• 90-Minute Workout Lunches and unlimited meetings with our very own nutritionist.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed