Mid Java/C# Game Server Engineer (Remote)

Playnetic; Warszawa; Remote; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Real Impact

Autonomy & Ownership

Flat Hierarchy

Fast-Track Growth

Competitive Compensation

Job summary

Playnetic is seeking a Middle Java Game Server Developer to build and support backend services for real-money casino games. You will focus on core server-side logic, game round processing, integrations, and performance improvements to ensure stable, secure, and scalable gameplay.

This role suits engineers who write clean Java, work well in cross-functional teams, and own development through release. The position is fully remote for Poland/Hungary and hybrid for Sofia, with cross-border

Qualifications

• 3+ years of backend development in Java.
• Strong knowledge of Java Core, OOP, collections and multithreading.
• 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.

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.

Skills

Java backend

Java core

REST APIs

SQL

Git/GitLab

Maven

CI/CD

English

Learning mindset

Tools

Git/GitLab

Maven

Job description

Playnetic is seeking a Middle Java Game Server Developer to build and support backend services for real-money casino games. You will focus on core server-side logic, game round processing, integrations, and performance improvements to ensure stable, secure, and scalable gameplay.

This role suits engineers who write clean Java, work well in cross-functional teams, and own development through release. The position is fully remote for Poland/Hungary and hybrid for Sofia, with cross-border