Companies GR8 Tech Middle Java Developer for Stream Data Processing Tech

About the role

GR8 Tech · 🌍 Worldwide remote

GR8_TECH builds B2B iGaming platforms for operators who play to lead.

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.

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.

Our ambition drives us. Our people make it real.

If you’re a challenger in spirit and a champion in action — join us.

Why this role exists:

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.

What you’ll drive:

Streaming pipelines & data flow
  • Build and maintain data pipelines using Apache Kafka, including topics, partitions, and consumer group tuning.
  • Implement and manage Kafka Connect source and sink connectors for integrations.
Streaming application development
  • Design and develop stateful streaming applications using Kafka Streams or Flink with Java (and Scala where applicable).
  • Ensure data consistency and schema evolution using Schema Registry (Avro).
Quality & testing
  • Write and maintain unit and integration tests for streaming topologies.

What makes you a GR8 fit:

Must-have

  • Commercial experience in software engineering with strong proficiency in Java (Scala is a plus).
  • Understanding of Apache Kafka architecture and internals.
  • Experience working with Apache Flink.
  • Experience with Schema Registry and schema evolution strategies.
  • Knowledge of serialization formats such as Avro and JSON.
  • Experience using SQL for processing large datasets.

Nice-to-have

  • Experience running Kafka and/or Flink on Kubernetes.
  • Familiarity with monitoring tools such as Prometheus and Grafana for streaming metrics.
  • Understanding of stream processing semantics.
  • Experience with CI/CD pipelines for streaming applications.

Why you’ll love working here: 

Benefits Cafeteria — annual budget you allocate to:

Sports • Medical • Mental health • Home office • Languages.

Work-life & support

  • Paid maternity/paternity leave + monthly childcare allowance.
  • 20+ vacation days, unlimited sick leave, emergency time off.
  • Remote-first + tech support + coworking compensation.
  • Team events (online/offline/offsite).
  • Learning culture with internal courses + growth programs.

Our culture & core values:

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.

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.

Ready to apply to GR8 Tech?
Apply to GR8 Tech
Apply now
🤖

Whoa — hold up

JobsRadar was built for real people having a rough time in their job search — not for automated requests. You're clicking way too fast and you're now temporarily blocked.

Come back later. If you're genuinely job hunting, we've got your back — just act like a human.

Catch your next role the second it’s posted.

Create a free account and we’ll watch the boards for you — the instant a job matches your search, it lands in your inbox or Telegram. No digging, no refreshing.

Create free account

Free forever · takes 30 seconds · already have one?

Get the worldwide-remote edge.

Join our Telegram channel for the stuff that helps you land the role — salary benchmarks, the weekly market pulse, and new-feature drops. No spam, just signal.

Join the channel — it's free