Senior Java Developer (Backend)

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💥 We’re hiring a Senior Java Developer (Warsaw)

💡 What you’ll do:
• Design and develop high-load backend microservices.
• Maintain and gradually migrate the existing codebase to a new tech stack.
• Optimize performance and reliability of backend services.
• Collaborate with the OPS team to investigate and resolve production issues.

🛠 Tech stack:
Java 17–21, Spring, MySQL, Kafka, Redis, REST, Protobuf, GitLab CI

🎯 What we expect:
• 8+ years of experience with Java backend development.
• Strong knowledge of microservice architecture patterns.
• Experience with SQL and schema design.
• Experience writing clean, maintainable, and well-tested code (Mockito, Wiremock, Testcontainers).
• CI/CD experience and strong problem-solving skills.
• English — intermediate+.

🎁 What we offer:
• 💸 Competitive salary + stock options.
• 🏢 Hybrid format: 4 days office / 1 day remote in Warsaw.
• 🍴 Free lunches in the office.
• 🏥 Medical insurance (75% coverage for family).
• 🅿️ Parking + Multisport card.
• 🎉 Friendly team and great office atmosphere.

📌 Work format: onsite (office in Warsaw)

If this sounds interesting — please text me in direct messages.