Lead Java Engineer

We’re looking for a Lead Java Engineer 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.

• Have experience with CI/CD, clouds, Linux & networking.

• Experience with CI/CD tools such as GitHub Actions, Jenkins, Ar go CD, and Maven.

• Proficiency with relational databases, particularly MySQL, including schema design, migrations, and query optimization.

• Have a go od 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.

• Hands-on experience with C - Nice to have!

We offer you:

• Modern office with free parking in the very…