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Game Server Developer (Java C#)

Playnetic


Job Location:

Warsaw - Poland

Monthly Salary: Not provided by the employer
Posted: 16 September 2026 (Yesterday)
Application Deadline: 14 December 2026
Vacancies: 1 Vacancy

Job Summary

Job Title: Game Server Developer (Java / C#)
Location: Hungary - Remote / Sofia Bulgaria - Hybrid / Poland - Remote
Employment Type: Full-time Employment
Division: Technology
Reports to: Game Server Development Team Lead

With a global mindset were committed to building engaging products and an inspiring workplace where teams can thrive.

Job Summary

We are looking for a Middle Java Game Server Developer to build and support backend services for real-money casino games. You will work on core server-side logic game round processing integrations and performance improvements to ensure stable secure and scalable gameplay. This role is a great fit for an engineer who writes clean Java code works well in cross-functional teams and takes ownership from development through release.

Key Responsibilities:

  • Implement and maintain game server logic based on product and math/design requirements.

  • Build resilient maintainable Java code for core backend services and APIs.

  • Ensure correctness of game rounds bonus flows and server-side state transitions.

  • Perform development verification code reviews and test coverage improvements.

  • Fix bugs optimize performance and support production stability.

  • Work according to Agile principles from planning to release (standups grooming retrospectives).

  • Collaborate closely with client product QA and platform teams.

Required Skills & Experience

  • 3 years of backend development experience with Java.

  • Strong knowledge of Java Core OOP collections and multithreading basics.

  • Experience building and supporting REST APIs.

  • Good understanding of SQL and transactional data handling.

  • Familiarity with Git/GitLab Maven and CI/CD workflows.

  • Strong English communication skills.

  • Willingness to learn curiosity and ability to work with feedback.

Preferred Qualifications

  • Experience in iGaming/casino games fintech or other high-reliability domains.

  • Understanding of algorithms design patterns and SOLID principles.

  • Experience with high-load backend services and performance tuning.

  • Familiarity with observability/logging tools.

  • Basic knowledge of TypeScript is a plus.

What we offer:

  • Real Impact: Were small enough that your voice is heard your contributions directly shape how we build and youll have real opportunities to make your mark.

  • Autonomy & Ownership: We trust your expertise and give you the ownership to do your best work your way with no micromanagement.

  • Supportive Leadership & Flat Hierarchy: A collaborative open environment led by accessible managers who prioritize mentorship psychological safety and removing blockers.

  • Fast-Track Growth: As we scale your career scales with us we actively support professional development training and progression.

  • Competitive Compensation: Competitive salary and extra holiday for well-being.