Idt
Idt5mo ago

Senior/Lead VoIP (Asterisk) Engineer

Warsaw,WarsawRemoteApp Developersenior
OtherEngineer
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Quick Summary

Overview

We’re looking for a Senior/Lead Asterisk Developer to help us build and scale a cloud PBX solution based on Asterisk. The team is building a cloud PBX solution based on Asterisk. We expect you to have strong problem-solving skills, be self-motivated, initiative, and responsible.

Technical Tools
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We’re looking for a Senior/Lead Asterisk Developer to help us build and scale a cloud PBX solution based on Asterisk.
 
The team is building a cloud PBX solution based on Asterisk. We expect you to have strong problem-solving skills, be self-motivated, initiative, and responsible.
 
Your daily duties will include implementing different SIP proxy features using Asterisk with respect to high availability and scalability.
You are not limited to Asterisk — we welcome you to be involved in all parts of a large ecosystem built around Asterisk.
 
You will work with automated CI/CD processes and get a chance to improve your knowledge in cloud infrastructure and networks.
  • 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.
  • Have at least 7+ years of production experience with large-scale deployments (call servers with 60k+ active users).
  • Have contributions in https://github.com/asterisk/asterisk/.
  • Have experience with CI/CD, clouds, Linux & networking.
  • Have a good level of English (B2 or higher).
  • (For Lead level) Are ready to act as the technical lead for the Asterisk domain.
  • (For Lead level) Can work cross-team with backend developers, infra/DevOps, QA, and product owners.
  • (For Lead level) Own best practices, code quality, and documentation.
  • Remote work flexibility – work from anywhere.
  • B2B contract with competitive gross compensation in USD.
  • Stable job with long-term growth perspective.
  • Really good hardware.
  • An exciting and challenging job with talented people around.
  • Continuous learning and career growth opportunities with annual performance review.
  • Compensation for professional training, seminars, and conferences.
  • Referral program – get rewarded for helping us grow the team with talented people.
  • Company-supported English classes to enhance your professional growth.

    • Location & Eligibility

    Where is the job
    Worldwide
    Fully remote, anywhere in the world
    Who can apply
    Open to applicants worldwide
    Listed under
    Worldwide

    Listing Details

    Posted
    November 19, 2025
    First seen
    March 26, 2026
    Last seen
    May 12, 2026

    Posting Health

    Days active
    47
    Repost count
    0
    Trust Level
    32%
    Scored at
    May 12, 2026

    Signal breakdown

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    Idt
    Idt
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    Employees
    5
    Founded
    2019
    Domain
    id-tech.tech
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    IdtSenior/Lead VoIP (Asterisk) Engineer
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