IDT

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

Diversified Telecommunication Services

Telecommunication Services

1K-5K (1690)

Founded 1990

10 open positions

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Senior/Lead VoIP (Asterisk) Engineer

2 months, 3 weeks 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

Apply Now

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 10

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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