Junior Java Developer

Are you ready to launch your software engineering career on a project that powers some of the world's most critical infrastructure? We're looking for a Junior Java Developer to join a passionate, international team building systems essential to the operation of large-scale Data Centers — from constructing new facilities and designing racks, to hardware demand planning, logistics, and ongoing maintenance.

Our client is a global technology leader operating at a massive scale, where reliability, performance, and innovation are at the heart of everything they do. You'll be joining a team of world-class engineers and architects to build a scalable, high-performance platform that empowers external customers to create the next generation of applications and solutions.

This is a fantastic opportunity to grow as an engineer in a modern, self-governing team culture that values transparency, autonomy, and continuous learning. Ready to launch your career in cloud engineering? Apply now and join our global team! This role offers a hybrid model, with 3 days per week spent working from the client's office in Kraków, Gdańsk, or Wrocław in Poland.

Responsibilities

Develop new features and refine existing code to make it cleaner, more readable, and more efficient Contribute to the full development lifecycle — from analysis and design through implementation, testing, and ongoing support Communicate directly with the client on a daily basis, building strong stakeholder relationships Collaborate with experienced engineers and architects on a scalable, high-performance platform Continuously learn the project domain and explore new technologies Take ownership of your tasks and deliver high-quality solutions on time Requirements 1+ years of experience developing and integrating software through the full system implementation lifecycle (analyze, design, implement, build, test, support) 1+ years of hands-on experience with Java Solid knowledge of JUnit, Mockito, and SQL Strong self-management and prioritization skills A proactive, self-starter mindset with a focus on quality and timely delivery Excellent English communication skills and confidence in client-facing interactions (you'll be speaking with stakeholders directly!)

Nice to have Experience with Google Cloud Platform (GCP) Familiarity with TypeScript Knowledge of Guice and Protocol Buffers