Java engineer for cloud PBX

We’re looking for a Lead Java Engineer to help us build and scale a cloud PBX solution. A few words about us: IDT Corporation is a global communications company founded in 1990 and headquartered in Newark, New Jersey. We are industry leaders in prepaid communication and payment services and one of the largest international voice carriers. We are listed on the NYSE, employ over 1800 people across 20 countries, and have over $1.5 billion in revenues.

• Your daily duties will include implementing different SIP proxy features using Java/C , with respect to high availability and scalability.
• 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.

• We expect you to have strong problem-solving skills, be self-motivated, initiative, and responsible.
• 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, Argo CD, 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.
• Будет плюсом: Hands-on experience with C - Nice to have!

• Modern office with free parking in the very center of Minsk.
• Remote/ hybrid work opportunity!
• An exciting and challenging job with talented people around.
• Competitive salary and growth opportunities.
• Really good hardware.
• 26 vacation days & 5 fully covered sick days without sick leave required per year.
• Compensation for professional training, seminars, and conferences.
• Sports activities reimbursement and loyalty program.
• Medical insurance and sports reimbursement.
• Referral program – get rewarded for helping us grow the team with talented people.
• Company-supported English classes to enhance your professional growth.