Middle Java Developer for Stream Data Processing Tech

<div class="content-intro"><p data-renderer-start-pos="243"><strong data-renderer-mark="true"><span class="acronym-highlight">GR8</span>_TECH builds B2B iGaming platforms for operators who play to lead.</strong></p> <p data-renderer-start-pos="328">We deliver full-cycle, high-impact tech designed to scale — from seamless integrations and expert consulting to long-term operational support. Our platform powers millions of active players and drives real business growth. Call it what it is: the iGaming Platform for Champions.</p> <p data-renderer-start-pos="608">With 1000+ GR8 people across locations and time zones, we don’t just ship technology — we help operators build success stories across brands, markets, and geos.</p> <p data-renderer-start-pos="770"><strong data-renderer-mark="true">Our ambition drives us. Our people make it real.</strong></p> <p data-renderer-start-pos="820">If you’re a challenger in spirit and a champion in action — join us.</p></div><h2 data-section-id="1o8yinf" data-start="0" data-end="24">Why this role exists:</h2> <p data-start="25" data-end="434">This role exists to design, build, and maintain streaming data solutions based on Apache Kafka and related technologies, ensuring reliable data processing, integration, and testing of streaming applications.</p> <h2 data-section-id="9w8fs3" data-start="436" data-end="457">What you’ll drive:</h2> <div><strong>Streaming pipelines &amp; data flow</strong></div> <ul> <li>Build and maintain data pipelines using Apache Kafka, including topics, partitions, and consumer group tuning.</li> <li>Implement and manage Kafka Connect source and sink connectors for integrations.</li> </ul> <div><strong>Streaming application development</strong></div> <ul> <li>Design and develop stateful streaming applications using Kafka Streams or Flink with Java (and Scala where applicable).</li> <li>Ensure data consistency and schema evolution using Schema Registry (Avro).</li> </ul> <div><strong>Quality &amp; testing</strong></div> <ul> <li>Write and maintain unit and integration tests for streaming topologies.</li> </ul> <h2 data-section-id="1qzsyb4" data-start="1801" data-end="1829">What makes you a GR8 fit:</h2> <p data-start="1830" data-end="1843"><strong data-start="1830" data-end="1843">Must-have</strong></p> <ul data-start="1845" data-end="2764"> <li>Commercial experience in software engineering with strong proficiency in Java (Scala is a plus).</li> <li>Understanding of Apache Kafka architecture and internals.</li> <li>Experience working with Apache Flink.</li> <li>Experience with Schema Registry and schema evolution strategies.</li> <li>Knowledge of serialization formats such as Avro and JSON.</li> <li>Experience using SQL for processing large datasets.</li> </ul> <p data-start="2766" data-end="2782"><strong data-start="2766" data-end="2782">Nice-to-have</strong></p> <ul data-start="2784" data-end="2857" data-is-last-node="" data-is-only-node=""> <li>Experience running Kafka and/or Flink on Kubernetes.</li> <li>Familiarity with monitoring tools such as Prometheus and Grafana for streaming metrics.</li> <li>Understanding of stream processing semantics.</li> <li>Experience with CI/CD pipelines for streaming applications.</li> </ul><div class="content-conclusion"><h2 data-renderer-start-pos="906"><strong data-renderer-mark="true">Why you’ll love working here:&nbsp;</strong></h2> <p data-renderer-start-pos="958"><strong data-renderer-mark="true">Benefits Cafeteria</strong> — annual budget you allocate to:</p> <p data-renderer-start-pos="1011">Sports • Medical • Mental health • Home office • Languages.</p> <p data-renderer-start-pos="1072"><strong data-renderer-mark="true">Work-life &amp; support</strong></p> <ul> <li data-renderer-start-pos="1095">Paid maternity/paternity leave + monthly childcare allowance.</li> <li data-renderer-start-pos="1160">20+ vacation days, unlimited sick leave, emergency time off.</li> <li data-renderer-start-pos="1224">Remote-first + tech support + coworking compensation.</li> <li data-renderer-start-pos="1281">Team events (online/offline/offsite).</li> <li data-renderer-start-pos="1322">Learning culture with internal courses + growth programs.</li> </ul> <h2 data-renderer-start-pos="1383"><strong data-renderer-mark="true">Our culture &amp; core values:</strong></h2> <p data-renderer-start-pos="1411">GR8_TECH culture is how we win — through trust, ownership, and a growth mindset. We move fast, stay curious, and keep it real, with open feedback, room to experiment, and a team that’s got your back.</p> <p data-renderer-start-pos="1612"><strong data-renderer-mark="true">FUELLED BY TRUST</strong>: we’re open, honest, and have each other’s backs.</p> <p data-renderer-start-pos="1680"><strong data-renderer-mark="true">OWN YOUR GAME</strong>: we take initiative and own what we do.</p> <p data-renderer-start-pos="1735"><strong data-renderer-mark="true">ACCELER8</strong>: we move fast, focus smart, and keep it simple.</p> <p data-renderer-start-pos="1793"><strong data-renderer-mark="true">CHALLENGE ACCEPTED</strong>: we grow through challenges and stay curious.</p> <p data-renderer-start-pos="1859"><strong data-renderer-mark="true">BULLETPROOF</strong>: we’re resilient, ready, and always have a plan.</p></div>