[Remote] Sr. Network Operations VoIP Engineer (Platform & SRE)
Note: The job is a remote job and is open to candidates in USA. Bandwidth Inc. is a global software company that helps enterprises deliver exceptional experiences through voice, messaging, and emergency services. They are seeking a Senior VoIP Engineer to join their Network Operations team, focusing on ensuring reliable, secure, and automated SIP connectivity across multiple carrier platforms and enterprise environments.
Responsibilities
- Design and implement automation to reduce operational burden, replacing manual workflows with scripting and Infrastructure as Code (IaC)
- Use tools like Ansible/AWX and Terraform to automate the provisioning and scaling of voice services and carrier interconnects
- Conduct detailed interoperability testing between carrier platforms and open-source SIP implementations (e.g., Kamailio, OpenSIPS), resolving signaling mismatches and codec issues
- Design and maintain SIP trunking solutions with multiple carriers to ensure reliability, compliance, and optimal routing
- Act as the highest-level escalation point for complex SIP/RTP problems. Use advanced tools like Wireshark, SIPp, and HEPIC/Homer to analyze call flows and media streams
- Collaborate with network and security teams to integrate SIP services through proxy servers and modern routing policies
- Maintain 'Documentation as Code,' including SIP call flow diagrams and interconnect standards, while providing guidance to junior staff on modern troubleshooting methodologies
Skills
- 5+ 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
- 3+ years of proficiency in Python, Bash, or Ansible for automating provisioning and troubleshooting workflows
- Experience using IaC tools to manage infrastructure at scale
- Hands-on experience with open-source SIP proxies (e.g., Kamailio, OpenSIPS) alongside traditional SBCs (e.g., Ribbon, Oracle/Acme Packet)
- Strong Linux administration skills for VoIP application performance and system troubleshooting
- Proficiency with diagnostic tools such as Wireshark, sngrep, and Homer/HEP
- Direct experience with carrier-to-carrier SIP interconnects and SS7-to-SIP interworking
- Experience with ENUM, LNP, 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
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.
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