Lead Java Developer (with C background)
idt
Warsaw
Posted Aug 13, 2026
- Other
- N2P
Job description
We’re looking for a **Lead Java Developer** **with C background** to help us build and scale a cloud PBX solution. 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 , 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.