We’re looking for a Senior/Lead Java Developer with C background 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 Java/C and Asterisk with respect to high availability and scalability.
Responsibilities:
- Collaborate with business stakeholders and actively participate in product planning and sprint backlog meetings.
- Take responsibility for the full software development lifecycle, from understanding business requirements through coding, deployment, and maintenance.
- Develop and maintain technical design, architecture, and troubleshooting documentation.
- Demonstrate a technology-agnostic mindset and continuously explore new technologies and approaches.
- 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), when needed.
- Work with Linux systems (systemd, networking, tuning, kernel parameters).
- Work with cloud environments (GCP preferred).
- Participate in architecture decisions.
- Design and implement Asterisk dialplans.
Requirements:
- Have at least 7+ years of production experience with large-scale deployments.
- Strong hands-on experience with Java.
- Hands-on experience with C.
- Have experience with CI/CD, clouds, Linux & networking.
- Experience with CI/CD tools such as GitHub Actions, Jenkins, ArgoCD, and Maven.
- Proficiency with relational databases, particularly MySQL, including schema design, migrations, and query optimization.
- Have a good level of English (B2 or higher).
- You are ready to act as the technical lead.
- Can work cross-team with backend developers, infra/DevOps, QA, and product owners.
- Own best practices, code quality, and documentation.
We are pleased to offer:
- Remote work as b2b contractor or on-site/hybrid employment (Belarus-Moldova) work opportunity!
- Stable job with long-term growth perspective.
- Competitive salary with annual performance review.
- Really good hardware.
- An exciting and challenging job with talented people around.
- Continuous learning and career growth opportunities.
- 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.
- More perks for the Minsk and Chisinau office employees.
Skills Required
- 7+ years production experience with large-scale deployments
- Strong hands-on experience with Java
- Hands-on experience with C
- Experience developing with Asterisk, including implementing patches, backports, and enhancements in source code
- Ability to develop custom Asterisk modules in C
- Experience implementing SIP proxy features and designing Asterisk dialplans
- Experience with CI/CD, cloud environments, Linux, and networking
- Experience with CI/CD tools: GitHub Actions, Jenkins, ArgoCD, and Maven
- Proficiency with relational databases, particularly MySQL (schema design, migrations, query optimization)
- Linux systems experience (systemd, networking, tuning, kernel parameters)
- Experience with cloud environments (GCP preferred)
- Good level of English (B2 or higher)
- Ready to act as the technical lead and work cross-team with backend, infra/DevOps, QA, and product owners
- Ownership of best practices, code quality, and documentation
IDT Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about IDT and has not been reviewed or approved by IDT.
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Healthcare Strength — Medical, dental, and vision coverage are included for full‑time employees, with published transparency files indicating employer‑sponsored health plans. This establishes a conventional benefits foundation across major coverage areas.
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Leave & Time Off Breadth — Paid vacation and sick time are characterized as generous, with illustrations of multi‑week vacation and defined sick‑leave allotments that can vary by team and tenure. This breadth provides a solid baseline for time away from work.
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Wellbeing & Lifestyle Benefits — Office amenities such as an on‑site gym, recreation spaces, free breakfast and coffee, and flexible work arrangements are highlighted. These wellbeing‑oriented perks augment the core package for in‑office and hybrid roles.
IDT Insights
What We Do
We know that you’ll have looked at quite a few company pages but IDT is different. We want people who want to make a big difference to our company with big ambitions. We’re a truly global team, with 1300 people working across all continents, apart from (at the moment!) Antarctica. But we are proud that despite our size, we encourage and support any in-house entrepreneurs to develop their ideas into business action. Our exciting growth plans make it a great time to join us. Our people are the reason for IDT’s passion for success. The IDT family is made up of people of all backgrounds, expertise, and interests, all with a relentless team spirit. We need people who share both our commitment to success and excitement about our journey. You won’t ever be bored or have to wonder how to fill your time. You’ll find the work challenging but you’ll get the support of a great team to help you beat those challenges. You will also be expected to support others as well as work hard, work well and work with a smile. If you want a join a company that will help you become your brilliant best and achieve amazing results, then you want to join IDT.
