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Telephony/VOIP Engineer - Remote

Retell AIRemoteOperations
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Salary
Not listed
Job type
Contract
Work mode
Remote
Posted
26 Aug 2026
Status
Open · checked 7d ago

About this role

Retell AI seeks a remote Telephony/VOIP Engineer to manage telephony integrations and provide advanced technical support for enterprise clients. This contract position suits experienced networking professionals who want to drive reliability and call quality at a fast-growing voice AI startup.

Role Overview

The Telephony/VOIP Engineer owns the technical success of telephony integrations and serves as the primary contact for advanced enterprise support after onboarding. This remote role involves collaborating directly with customers and resolving complex technical issues to guarantee high call reliability. Candidates must be available for hours that overlap with the Pacific Time team and client base.

Key Responsibilities

Manage and collaborate with clients on complex SIP integrations across CCaaS and CPaaS platforms like Five9, NiCE, Avaya, Genesys, Amazon Connect, Twilio, and Telnyx while expanding future platform connections.
Debug call failures and enhance system reliability using carrier logs, SIP traces, and PCAP analysis.
Serve as the primary technical contact for enterprise clients following the onboarding process.
Convert customer feedback and friction points into clear product enhancements for the development teams.

Requirements

Minimum of 5 years of professional experience working as a VoIP Engineer, Telephony Engineer, or within a similar low-latency networking function.
Comprehensive knowledge of the SIP Protocol (RFC 3261), RTP media, and debugging voice quality problems through PCAPs.
Solid foundation in networking concepts including TCP/IP, TLS, DNS, and firewalls.
Practical familiarity with cloud communication and CPaaS platforms such as Telnyx, Plivo, and Twilio.
Capability to create or edit basic scripts using Python, Bash, or JavaScript to automate standard diagnostic tasks.
Outstanding client-facing communication skills to guide premium organizations through intricate configurations.

Nice to Have

Prior exposure to SIP proxies, SIP servers, Kamailio, Asterisk, or FreeSWITCH.

Skills and Tools

Python
JavaScript
Bash
SIP Protocol (RFC 3261)
RTP
TCP/IP, TLS, DNS, and Firewalls
PCAP Analysis and SIP Traces
CCaaS and CPaaS Platforms (Twilio, Telnyx, Five9, Genesys, Amazon Connect, Avaya, NiCE)

Salary and Benefits

Compensation ranges from $6000 to $7500 USD per month, determined by prior experience.
Employment type is a 1099 Contractor arrangement, available on a full-time or part-time basis.

About the Company

Retell AI reimagines call centers using first principles and cutting-edge voice AI. Thousands of businesses utilize the company's AI voice agents to manage sales, support, and logistics interactions. Backed by prominent investors like Y Combinator and Alt Capital, Retell AI has scaled rapidly to $60M ARR with a 40-person team. Recognized on the a16z top AI apps list and Brex's fast-growing software vendors list, the company builds intelligent AI workers that function as frontline agents, managers, and QA analysts.

How to Apply

Interested candidates should visit the official Retell AI careers page to submit an application for this remote telephony role.

Skills and tech stack

Questions candidates ask

What is the employment type for this role?

This position is offered as a full-time or part-time 1099 Contractor role.

What is the monthly salary range?

Compensation is between $6,000 and $7,500 USD per month, depending on experience.

Is this position fully remote?

Yes, this is a remote position, though applicants must be open to working some hours that overlap with Pacific Time.

How many years of experience are required?

Candidates must have 5 or more years of experience as a Telephony Engineer, VoIP Engineer, or in an equivalent low-latency networking role.

What programming or scripting languages are needed?

The role requires the ability to write or modify basic scripts using Python, Bash, or JavaScript.

Ready to apply?

The application is on the official Retell AI careers page.

Apply on company site