Senior Data Engineer for Data Streaming Platform
Remote, Kraków +4 Locations
GR8 Tech
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!
As Senior Developer in the BI&AP Streaming Team, you will play a critical role in designing, developing, and maintaining our real-time data streaming platform. You will be responsible for the implementation of mission-critical use cases from real-time analytics to personalized user experiences, by building scalable, low-latency data pipelines using Kafka Streams, Flink, and the JVM ecosystem (Java/Scala).
What You’ll Be Driving:
Designing and implementing real-time streaming pipelines using Kafka, Flink, and Kafka Streams;
Leading architecture and design decisions for the event-driven data platform;
Mentoring junior engineers and fostering best practices in stream processing;
Collaborating with product & project managers to translate business requirements into robust data systems;
Ensuring data quality, observability, and reliability in streaming data;
Championing performance, fault tolerance, and exactly-once semantics in streaming jobs;
Evaluating and adopting new technologies to drive innovation;
Enforcing quality assurance standards and ensuring thorough testing before release;
Maintaining comprehensive documentation for system architecture and technical designs.
What Makes You a GR8 Fit:
At least 5 years of experience in a similar role with a strong track record of leadership and successful project delivery;
Proven expertise with Apache Kafka and hands-on experience with Flink, Kafka Streams, or similar real-time systems;
Strong programming skills in Java, Scala, Python;
In-depth understanding of distributed systems, data consistency models, and streaming semantics;
Experience with CI/CD, containerization, and infrastructure-as-code tools is a plus;
Communicate effectively with stakeholders, including presenting technical concepts and project updates.
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.
GR8 Tech is a leading B2B provider of iGaming solutions that empowers operators to grow, lead, and win.<br /><br />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.<br /><br />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.<br />