Senior Java Developer (Backend)

TL;DR

Senior Java Developer (Backend): Design and develop high-load backend microservices for a live-streaming platform with an accent on performance optimization and microservice architecture patterns. Focus on maintaining and rewriting the existing codebase, optimizing code for better performance, and addressing production issues with the OPS team.

Location: Warsaw, on-site position with 4 days from office, 1 day remote

Company

Market-leading live-streaming platform with 450+ million registered users and 500+ global employees focused on video technology and content monetization.

What you will do

• Design and develop high-load backend microservices.
• Maintain the existing codebase and gradually rewrite it to a new technology stack.
• Optimize code to achieve better performance.
• Collaborate with the OPS team to address production issues.

Requirements

• 8+ years of experience as a Java Developer
• Solid experience with Java 17-21
• Experience with MySQL, Kafka, Redis
• Understanding of microservice architecture patterns
• Good knowledge of Spring framework
• Experience with REST, protobuf
• Hands-on experience with SQL and schema design
• Basic experience with CI/CD (Gitlab CI)
• Code coverage with tests (mockito, wiremock, testcontainers)
• Intermediate+ English
• Work in an Agile team

Culture & Benefits

• Stock options grant
• Competitive salary
• Medical insurance for you and 75% off for relatives
• Free lunches and parking
• Multisport card
• Cheerful team spirit and fun office atmosphere