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Middle Data Engineer

GR8 Tech
Warsaw, województwo mazowieckie
1 dzień temu

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!

Our team builds and maintains high-performance recommendation systems that serve millions of users with minimal latency. We focus on developing scalable applications and advancing machine learning models to deliver personalized experiences. Our work directly impacts user engagement and business growth through intelligent content discovery and recommendation algorithms.

What You'll Be Driving:

  • Designing, developing, testing, and maintaining features for recommendation systems and supporting applications;
  • Building and optimizing high-throughput, low-latency services capable of handling significant traffic loads;
  • Creating and maintaining comprehensive automated testing suites (unit, integration, and functional tests)
  • Collaborating with ML engineers to implement and optimize recommendation algorithms;
  • Participating in code reviews and providing constructive technical feedback to team members;
  • Engaging in on-call rotation to support production systems and resolve critical issues;
  • Partnering with product management to translate business requirements into technical solutions;
  • Providing technical guidance on implementation complexity, feasibility, and alternative approaches;
  • Contributing to system architecture decisions and technical roadmap planning.

What Makes You a GR8 Fit:

  • 2+ years of professional Python development experience with demonstrated ability to write clean, maintainable, and high-performance code;
  • Advanced SQL query writing and optimization skills, with strong knowledge of PostgreSQL or similar relational databases;
  • Hands-on experience with frameworks such as FastAPI, Django, or Flask;
  • Experience with relational and non-relational databases;
  • Practical experience with Kubernetes and Helm for application deployment and management;
  • Basic knowledge of Apache Airflow for data pipeline orchestration;
  • Strong foundation in object-oriented design, data structures, algorithms, and computational complexity analysis;
  • Self-motivated with strong ownership mentality and ability to deliver results independently;
  • Excellent problem-solving skills and attention to detail;
  • Strong communication skills for cross-functional collaboration;
  • Eagerness to learn new technologies and adapt to evolving requirements;
  • Experience participating in agile development processes.

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.

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