Lead Asterisk Cloud PBX Engineer (Remote)

IDT Corporation; France; Remote; EUR 107,000 - 169,000; Full time

Benefits offered by this job

Remote work flexibility

B2B contract (USD)

Stable long-term growth

Quality hardware

Challenging job with talented people

Annual performance review

Professional training, seminars, and会议

Referral program

Company-supported English classes

Job summary

IDT Corporation in France is seeking a Senior/Lead Asterisk Developer to help build and scale a cloud PBX solution based on Asterisk. You will design advanced dialplans, fix core issues, and contribute across a large ecosystem around Asterisk, with CI/CD and cloud infrastructure exposure.

You should have 7+ years in large deployments, experience in C/C++, SIP/RTP, and leadership capabilities to guide cross‑functional teams.

Qualifications

• 7+ years of production experience with large-scale deployments (call servers with 60k+ active users).
• Contributions to https://github.com/asterisk/asterisk/.
• Experience with CI/CD, clouds, Linux & networking.
• Good level of English (B2+).
• Lead level ready to act as the technical lead for the Asterisk domain.
• Lead level can work cross-team with backend developers, infra/DevOps, QA, and product owners.
• Lead level owns best practices, code quality, and documentation.

Responsibilities

• Design and implement advanced Asterisk dialplans.
• Debug and fix issues inside Asterisk core, modules, and C-based extensions.
• Analyze and interpret stack traces, crashes, memory issues, and performance bottlenecks.
• Implement patches, backports, or enhancements directly in Asterisk source code.
• Develop custom modules (C/C++), when needed.
• Apply deep understanding of SIP signaling, RTP, SDP negotiation, codecs, and NAT traversal.
• Troubleshoot SIP flows.
• Work with trunk groups, carriers, PSTN routing, and failover logic.
• Work with Linux systems (systemd, networking, tuning, kernel parameters).
• Work with Asterisk in cloud environments (AWS preferred).
• Participate in architecture decisions for resilient and scalable telephony clusters.

Skills

Asterisk

CI/CD

Linux

Networking

SIP signaling

English (B2+)

Leadership

Tools

C/C++

GitHub

AWS

Job description

IDT Corporation in France is seeking a Senior/Lead Asterisk Developer to help build and scale a cloud PBX solution based on Asterisk. You will design advanced dialplans, fix core issues, and contribute across a large ecosystem around Asterisk, with CI/CD and cloud infrastructure exposure.

You should have 7+ years in large deployments, experience in C/C++, SIP/RTP, and leadership capabilities to guide cross‑functional teams.