Telephony Engineer - Remote

Retell AI
San Francisco, India, Ukraine, Brazil, Argentina, Romania, Poland, Serbia
Workplace: RemoteContractUSD 6,000 - 7,500 monthlyFunction: Software EngineeringSkills: ["Troubleshooting","Technical communication","Customer guidance"]

Own Retell’s telephony integrations and be the first technical line of defense for advanced enterprise support. You’ll troubleshoot call failures using SIP traces, PCAP analysis, RTP/voice quality debugging, and carrier logs, while collaborating with customers and internal teams to improve reliability. Partner with CCaaS/CPaaS platforms (e.g., Twilio, Amazon Connect, Genesys) and translate customer friction into actionable product improvements for AI voice infrastructure.

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FursaFursa
Retell AI
Retell AI
2 days ago

Telephony Engineer - Remote

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 8 hours agoStatus: Live

Job Summary

Own Retell’s telephony integrations and be the first technical line of defense for advanced enterprise support. You’ll troubleshoot call failures using SIP traces, PCAP analysis, RTP/voice quality debugging, and carrier logs, while collaborating with customers and internal teams to improve reliability. Partner with CCaaS/CPaaS platforms (e.g., Twilio, Amazon Connect, Genesys) and translate customer friction into actionable product improvements for AI voice infrastructure.
Location: San Francisco, India, Ukraine, Brazil, Argentina, Romania, Poland, Serbia
Workplace: Remote
Employment Type: Contract
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Own and collaborate on complex SIP integrations with CCaaS/CPaaS platforms and drive future platform integrations.
  • •Investigate and debug call failures using PCAP analysis, SIP traces, and carrier logs to improve reliability.
  • •Serve as the primary technical point of contact for enterprise clients post-onboarding.
  • •Translate customer technical feedback and friction points into actionable product improvements.
  • •Help define the gold standard for AI voice infrastructure by improving call quality and customer experience.

Pay and Benefits

Salary: USD 6,000 - 7,500 monthly

Key Requirements

  • •5+ years as a Telephony Engineer, VoIP Engineer, or equivalent low-latency networking role.
  • •Deep understanding of SIP (RFC 3261) and RTP debugging voice quality issues using PCAPs and trace tools like Wireshark/TShark.
  • •Strong networking fundamentals including TCP/IP/TLS, DNS, and Firewalls.
  • •Familiarity with CPaaS/cloud communication platforms such as Twilio, Plivo, and Telnyx.
  • •Ability to write or modify basic scripts (Python, Bash, or JavaScript) to automate troubleshooting; familiarity with Asterisk/FreeSWITCH/Kamailio is a plus.
Experience:VoIPTelephonyEnterprise supportLow-latency networkingCPaaSSIPVoice AI
Skills:TroubleshootingTechnical communicationCustomer guidance
Tech Stack:SIPRFC 3261RTPPCAPWiresharkTSharkTCP/IPTLSDNSFirewallsSIP tracesCarrier logsPythonBashJavaScriptNiCEFive9AvayaGenesysAmazon Connect

Company Brief

Retell AI
Provides an AI-powered platform for creating personalized, high-quality video content from text or templates, enabling businesses and creators to scale video production and engage audiences with automated, customizable video generation tools.
Industry: Digital Media
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