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Senior/Lead VoIP (Asterisk) Engineer

2 months ago
France, Serbia, Spain, Mexico, Brazil, Paraguay, Costa Rica, Georgia, Belarus, Greece, Moldova, Montenegro, Poland, Romania, Israel
Contract
Lead
DevOps Engineer
Software Development
AWS C C++ CI/CD Linux
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IDT

IDT

IDT Corporation provides innovative communications and payment services, connecting families, friends, and businesses globally with pioneering technologies and solutions.

Diversified Telecommunication Services
1K-5K
Founded 1990
View All Jobs 9

Description

  • Implement SIP proxy features in Asterisk with a focus on high availability and scalability.
  • Design and implement advanced Asterisk dialplans.
  • Debug and fix issues in the Asterisk core, modules, and C-based extensions.
  • Analyze stack traces, crashes, memory issues, and performance bottlenecks.
  • Implement patches, backports, and enhancements in Asterisk source code.
  • Develop custom C/C++ modules when needed.
  • Work with SIP signaling, RTP, SDP negotiation, codecs, and NAT traversal.
  • Troubleshoot SIP flows, trunk groups, carriers, PSTN routing, and failover logic.
  • Work with Linux systems, including systemd, networking, tuning, and kernel parameters.
  • Participate in architecture decisions for resilient and scalable telephony clusters.

Requirements

  • 7+ years of production experience with large-scale deployments, including call servers with 60k+ active users.
  • Contributions to the Asterisk project on GitHub.
  • Experience with CI/CD, cloud platforms, Linux, and networking.
  • Strong English communication skills, with B2 level or higher.
  • For Lead level, readiness to act as the technical lead for the Asterisk domain.
  • For Lead level, ability to work cross-functionally with backend developers, infra/DevOps, QA, and product owners.
  • For Lead level, ownership of best practices, code quality, and documentation.
  • AWS experience is preferred.
  • Strong problem-solving, self-motivation, initiative, and accountability.

Benefits

  • Remote work flexibility with the ability to work from anywhere.
  • B2B contract with competitive gross compensation in USD.
  • Stable long-term role with growth prospects.
  • High-quality hardware provided by the company.
  • Continuous learning and career growth with annual performance reviews.
  • Compensation for professional training, seminars, and conferences.
  • Referral program with rewards for helping hire talented people.
  • Company-supported English classes.

Interested in this position?

Apply directly on the company website

Apply Now

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