Middle Java Back-end Developer (iGaming)

Requirements:
 

Commercial experience in Gambling / iGaming is required
Commercial GameDev experience is required (preferably slot games)
 

• 3+ years of experience in Java
• English — Upper-Intermediate (B2)
• Experience in math processing
• Experience with slot games
• Structured and analytical thinking
• Strong elaboration and communication skills
• Hands-on experience with AI tools as part of everyday work is a must

Strong knowledge of:

• Core Java, Collections, Streams, Lambdas
• Exception handling, Immutability, records
• Clean Code principles
• Spring Boot, Spring MVC (REST APIs), Spring Security (JWT)
• SQL, JPA
• JWT

Responsibilities:
 

• Development and support of backend services
• Participation in feature development and system improvements
• Close collaboration with game teams, QA, and product

Nice to have:
 

• JVM basics (heap/stack, GC, memory model)
• SOLID
• Spring MVC (filters, interceptors)
• Spring Security (filters, auth flow)
• Dependency Injection & IoC
• Validation (Bean Validation)
• API design (REST principles, versioning, error handling)
• Java concurrency fundamentals (basic understanding)
• Databases & Persistence: Transactions, Indexing basics, Hibernate
• Security: Secure coding practices, SQL injection prevention, OAuth2
• Testing: JUnit 5, Mockito, Integration testing basics
• DevOps & Tooling: Docker (basics, build/run), Git (branching, rebase), Maven / Gradle