Game Server Developer (Java / C#)

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

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

Why Playnetic?

Playnetic is an innovative and fast-growing player in the iGaming industry. We create cutting-edge casino games and technology that entertain millions of players worldwide, combining creativity, quality, and innovation at every step. Our gaming content is built around our core values: quality gaming, dedicated customer service, and reliable delivery to our partners.

With a global mindset, we’re 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: We’re small enough that your voice is heard — your contributions directly shape how we build, and you’ll 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.