Middle/Senior Front End Developer for Sportsbook
Warsaw, Masovian Voivodeshi...
Job Description
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:
- Designing and implementing scalable and efficient software architectures;
- Writing, testing, and debugging complex code for new and existing software applications;
- Providing guidance and mentorship to junior engineers and team members;
- Conducting thorough code reviews to ensure code quality, security, and adherence to best practices;
- Creating and maintaining comprehensive technical documentation for software development and system design;
- Leading and managing software development projects (shared responsibility with the Delivery Manager) to ensure timely delivery and quality;
- Collaborating with cross-functional teams, including product management, design, and operations, to align development efforts with business goals;
- Researching and implementing new technologies and methodologies to enhance software performance and streamline development processes;
- Identifying and resolving complex software issues and technical challenges;
- Developing and enforcing testing protocols to ensure software reliability and performance;
- Driving continuous improvement in software development practices and processes;
- Communicating effectively with stakeholders, including presenting technical concepts and project updates;
- Delivering code to production in a timely manner according to business expectations.
What Makes You a GR8 Fit:
- 3+ years of experience in automation testing;
- Expertise in React and TypeScript — strong understanding of component architecture, hooks, and type safety;
- Experience building scalable front-end solutions (multi-brand or modular architecture, shared component libraries);
- Proficiency in front-end performance optimization — bundle analysis, caching, code-splitting, and rendering efficiency;
- Practical experience with testing frameworks (Jest, React Testing Library);
- Strong collaboration skills — ability to work closely with QA, backend, and product teams in Agile environments;
- Ability to take ownership of complex features or domains and deliver end-to-end solutions;
- Fluent in Ukrainian;
- Intermediate level of English.
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.