Principal Engineer

Senior Java Engineer – Build Fast, Think Deep, Scale Smart

You're not here to patch legacy code.

You’re here to build something important —something scalable, performant, and architecturally beautiful.

We’re a lean, hungry team delivering cutting-edge analytics software to some of Europe’s biggest organizations. Our solution processes hundreds of millions of data points in memory—and that’s exactly where you come in.

This is a chance to join a highly technical, product-centric environment where speed and precision aren’t opposites—they’re a team.

What You’ll Own

• Designing and implementing backend systems with Java 17+
• Architecting for performance and memory optimization at scale
• Developing secure, robust features with Spring Boot & Spring Security
• Owning architectural patterns like DDD, CQRS, and Clean / Hexagonal Architecture
• Collaborating with a tight-knit dev team that ships fast, learns faster
• Working hands-on with AWS, Docker, Terraform , and modern cloud infra
• Optionally, contributing across the stack with React / Redux

Your Superpowers

• You dream in O(log n) and your instinct is to reach for Eclipse Collections or PCollections
• You’ve built secure APIs, set up JWT auth in your sleep, and know how to lock down your endpoints
• You’re curious, ambitious, and allergic to spaghetti code
• You’ve dabbled (or dominated) with tools like Apache Parquet, Arrow, DuckDB, MonetDB, Cassandra
• You automate everything. Bash, Python, Terraform—it’s all fair game.

Your Toolbox

• Spring Boot, Spring Security
• AWS (CloudFormation, Lambda, S3, you name it)
• Docker
• REST APIs
• Column-based DBs, SQL & NoSQL

Why You'll Stay

This is a startup soul inside an established business brain. We move fast but think long-term. The work is hard. The architecture is ambitious. The people? Supportive, talented, and genuinely stoked to solve hard problems.

We ship. We refactor. We improve. Always.

Ready to build tech that matters—with people who care?

Apply now. Let’s push Java to its limits—together.