Backend Engineer
Java Services Engineer
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This role is being recruited through Reelu, a talent platform that connects top candidates with leading companies in iGaming, fintech, and sportsbook.
We are currently seeking a Java Services Engineer, remote in Warsaw, for one of our client companies.
Reelu helps you showcase your experience through a short Storyboard and match with opportunities that fit your skills.
Java Services Engineer
The ideal candidate is a skilled Java backend engineer who thrives on building high-performance, scalable systems. You enjoy solving complex technical challenges, optimizing distributed services, and turning mathematical models into reliable backend solutions. With a strong foundation in modern Java and backend architecture, you're passionate about writing clean, efficient code and collaborating with cross-functional teams to deliver exceptional gaming experiences. If you're analytical, detail-oriented, and excited to work in a fast-moving, international environment where your work directly impacts millions of players worldwide, you'll fit right in.
Responsibilities
- Design, develop, and optimize scalable, high-performance backend game services using
Modern Java (Java 17/21+)
. - Build low-latency APIs and distributed services capable of handling high volumes of concurrent transactions.
- Collaborate with game designers, mathematicians, product teams, and client developers to transform game specifications into robust backend solutions.
- Standardize core business logic and calculation engines into reusable backend components.
- Write comprehensive unit tests and continuously optimize service performance, reliability, and scalability.
- Participate in code reviews, share engineering best practices, and contribute to a collaborative development culture.
- Work closely with engineering teams across multiple international studios to build next-generation gaming platforms.
Qualifications
- 2+ years of professional software development experience.
- Strong expertise in
Modern Java (Java 17/21+)
. - Experience designing, building, and optimizing scalable, high-throughput backend services.
- Strong analytical and problem-solving skills with exceptional attention to detail.
- Upper-Intermediate English or higher, with the ability to collaborate effectively in an international team.
Nice to Have
- Background in probability, statistics, or mathematical modeling.
- Experience with relational databases (MySQL) and NoSQL databases.
- Familiarity with scripting languages for automation, validation, or data processing.
- Experience using AI-assisted development tools such as GitHub Copilot or LLM-powered coding assistants.
Why Join Us?
- Remote-first culture
– Work from wherever you do your best work with the flexibility to maintain a healthy work-life balance. - Creative ownership
– Bring ideas to life and play a key role in shaping our global brand and marketing presence. - Learning & development
– Dedicated learning budgets and development days to help you stay ahead of the latest marketing and AI trends. - Health & wellbeing
– Medical coverage and wellness benefits designed to support your physical and mental wellbeing. - Performance bonuses
– Be rewarded for your contributions through an annual company bonus. - Career progression
– Grow your career through both vertical and cross-functional opportunities. - Global team
– Collaborate with talented colleagues from around the world in a diverse, innovative, and supportive environment.
How to Apply
Register to Reelu Talent
community and get matched today!
- Enter your email
- Upload your CV
- Create your
Storyboard - Once your Storyboard is live,
apply to this role in the “Jobs” tab
Joining Reelu also means you may be considered for future opportunities with our partner companies.
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