Lead Java Developer (with C background)

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.