Retell AI Telephony Engineer India Hiring 2026

Retell AI Telephony Engineer India hiring is active on the company's official careers system. Retell AI is hiring a remote telephony engineer to support the calling infrastructure behind voice-AI products. The role requires strong SIP, RTP, networking, debugging, and customer support judgement. This guide uses the live employer listing and links directly to it.

The position is based in Remote; India is listed as an eligible applicant location. Full-time working US Eastern Time hours. Candidates should compare their recent work with the verified requirements before applying.

Retell AI Telephony Engineer India: Quick Facts

Company	Retell AI
Position	Telephony Engineer
Location	Remote; India is listed as an eligible applicant location
Employment	Full-time working US Eastern Time hours
Published or timing note	23 May 2026
Application deadline	Not stated on the official Ashby page

Salary and Employment Context

Official compensation: USD 25 to USD 45 per hour. Candidates should rely on the written offer for base pay, variable pay, equity, benefits, payroll entity, working hours, and notice terms.

The current role is described as full-time working us eastern time hours. The location information is Remote; India is listed as an eligible applicant location. Ask the recruiter to confirm office attendance, shift allowances, equipment, leave, and probation before accepting.

Who Can Apply?

The official listing is the eligibility source. The points below summarise the closest applicant profile without adding an unlisted degree, certification, or guarantee.

• The official listing asks for at least five years of telephony or VoIP experience.
• Deep SIP and RTP troubleshooting ability is expected.
• Candidates should know Wireshark, TShark, networking, and CPaaS systems.
• Python, Bash, or JavaScript scripting can help automate investigation and support work.

What Does a Telephony Engineer Do?

The work is practical and outcome-focused. A strong application should show where the candidate performed similar tasks, improved reliability, or solved a measurable problem.

• Investigate call setup, audio, routing, carrier, and network failures.
• Analyse SIP signalling and RTP media with packet-capture tools.
• Support customer integrations while documenting root cause and next actions.
• Improve telephony reliability through tooling, monitoring, and recurring-issue analysis.
• Coordinate with engineering and providers during high-impact calling incidents.

Skills to Highlight in the Resume

Use evidence instead of a long keyword list. Mention the system, your decision, the tool used, and the result. Keep confidential customer or employer information out.

• SIP methods, response codes, headers, dialogs, and common call-flow failures.
• RTP audio, codecs, NAT, firewalls, latency, packet loss, and one-way audio diagnosis.
• Wireshark or TShark filters for efficient packet-level investigation.
• CPaaS platforms, carriers, phone-number provisioning, and routing concepts.
• Python, Bash, or JavaScript for operational tooling and repetitive checks.

Application Fit Checklist

Before applying, compare the role with your last two years of work. A smaller number of strong matches is more useful than a resume filled with unrelated tools.

• Place the most relevant role, project, or production result in the top third of the resume.
• Quantify scale, reliability, delivery speed, customer impact, or quality improvement where evidence exists.
• State your current location and genuine availability for the listed office, remote, shift, or time-zone pattern.
• Remove skills that you cannot explain through a project, incident, design choice, or working example.
• Check that dates, titles, links, and contact details are current before submitting.

How to Apply on the Official Site

Open the official Retell AI job page, read the latest description, and check that the role still accepts applications. Tailor the resume to the verified work.

• Use an email address and mobile number that you check regularly.
• Upload a concise resume with relevant projects, impact, dates, and technologies.
• Answer screening questions accurately and do not inflate years of experience.
• Save the confirmation email or application reference for later follow-up.

Do not pay for an interview, referral, offer letter, or application link. Verify recruiter messages against the employer domain and the official job page.

Preparation Before the Interview

Start with the job description, then prepare short examples that match its main responsibilities. Use a clear situation, action, and result instead of memorised answers.

• Practise reading a SIP ladder and explain where a failed call should be investigated.
• Review RTP, codecs, NAT traversal, packet loss, and one-way audio causes.
• Prepare an incident example that shows customer communication and technical depth.

Check the role page again before the interview because status, location, and process can change. The employer decides shortlisting, assessment stages, compensation, and selection.

Frequently Asked Questions

Can candidates in India apply?

Yes. India is explicitly listed as an eligible applicant location.

What experience is expected?

The official listing asks for at least five years in telephony or VoIP.

What pay is published?

Retell AI lists USD 25 to USD 45 per hour.

Which working hours apply?

The role follows US Eastern Time hours.

What is the official source?

The source is the official Retell AI recruitment page at jobs.ashbyhq.com. Use that page for the current status.