Middle Java (Streaming) Developer

GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.

We deliver high-impact, full-cycle tech solutions designed to scale. From seamless integration and expert consulting to long-term operational support, our platform powers millions of active players and drives real business growth. It’s more than just a product — it’s the iGaming Platform for Champions, built for those who play to lead.

We know the game and how to take it to the next level. With 1000+ talented professionals on board, we don't just build tech — we build success stories for iGaming operators all over the world.

Our ambition drives us, our people make it real. Join us and be part of building champion-level success!

What You’ll Be Driving:

• Building and maintaining robust data pipelines with Apache Kafka (topics, partitions, consumer groups tuning);

• Designing and developing stateful streaming applications using Apache Kafka Streams/Flink and Java/Scala;

• Implementing and managing Kafka Connect source/sink connectors for various integration points;

• Ensuring data consistency and evolution using Schema Registry (Avro);

• Writing unit and integration tests for streaming topologies.

What Makes You a GR8 Fit:

• Commercial experience in Software Engineering with strong proficiency in Java (Scala is a plus);

• Understanding of Apache Kafka architecture and internals;

• Experience with Apache Flink;

• Experience with Schema Registry and schema evolution strategies;

• Knowledge of serialization formats (Avro, JSON);

• Experience with SQL in processing big datasets.

Nice to Have:

• Experience running Flink/Kafka on Kubernetes;

• Familiarity with monitoring tools (Prometheus, Grafana) for streaming metrics;

• Understanding of processing semantics;

• Experience with CI/CD pipelines for streaming applications.

Why You’ll Love Working Here:

Benefits Cafeteria

An annual fixed budget that you can use based on your needs and lifestyle. You decide how to allocate it:

• Sports – gym, yoga, or any activity to keep you active;

• Medical – insurance and wellness services;

• Mental health– therapy or coaching support;

• Home office – ergonomic furniture, gadgets, and tools;

• Languages – courses to improve or learn new skills.

Work-life

• Parental support with paid maternity/paternity leave and monthly childcare allowance;

• 20+ vacation days, unlimited sick leave, and emergency time off;

• Remote-first setup with full tech support and coworking compensation;

• Regular team events – online, offline, and offsite;

• Learning culture with internal courses, career development programs, and real growth opportunities.

Our Culture & Core Values

GR8 Tech culture is how we win. Behind every bold idea and breakthrough is a foundation of trust, ownership, and a growth mindset. We move fast, stay curious, and always keep it real, with open feedback, room to experiment, and a team that’s got your back.

• FUELLED BY TRUST: we’re open, honest, and have each other’s backs;

• OWN YOUR GAME: we take initiative and own what we do;

• ACCELER8: we move fast, focus smart, and keep it simple;

• CHALLENGE ACCEPTED: we grow through challenges and stay curious;

• BULLETPROOF: we’re resilient, ready, and always have a plan.

To keep things efficient, please apply only for roles that closely match your experience.