Key Facts

Remote From:

Serbia

Category: Back-End Developer

Freelance

Senior (5-10 years)

English

Hard Skills

C (Programming Language) Rust (Programming Language) Rust (Programming Language) C++ (Programming Language) High Performance Computing Network Programming Video Game Development Massively Multiplayer Online Game Distributed Computing Network Protocols +4 more

Other Skills

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Communication
•
Teamwork
•
Problem Solving

Roles & Responsibilities

Strong proficiency in Rust and C/C++
Experience in game development, particularly multiplayer and online projects
Solid understanding of multiplayer architecture, networking, and distributed systems
At least 5 years of professional experience specifically in multiplayer game development or real-time distributed networks

Requirements:

Participate in the development and evolution of backend technologies for scalable virtual worlds
Work with high-load distributed systems
Integrate gameplay systems with backend infrastructure
Optimize project performance and scalability

Job description

ABOUT YOU

We are looking for passionate C/C++ and Rust developers with at least 5 years of experience in network programming for multiplayer/MMO games in fast-paced development environments, as well as hands-on experience with industry-standard game engines such as Unreal Engine 5, Unity, or proprietary AAA engines.

ABOUT US

Xsolla is a global commerce company with robust tools and services to help developers solve the inherent challenges of the video game industry. From indie to AAA, companies partner with Xsolla to help them fund, distribute, market, and monetize their games. Grounded in the belief in the future of video games, Xsolla is resolute in the mission to bring opportunities together, and continually make new resources available to creators. Headquartered and incorporated in Los Angeles, California, Xsolla operates as the merchant of record and has helped over 1,500+ game developers to reach more players and grow their businesses around the world. With more paths to profits and ways to win, developers have all the things needed to enjoy the game.

For more information, visit xsolla.com.

RESPONSIBILITIES

Participate in the development and evolution of backend technologies for scalable virtual worlds

Work with high-load distributed systems

Integrate gameplay systems with backend infrastructure

Optimize project performance and scalability

Contribute to the development of multiplayer and large-scale online systems

Collaborate closely with game project teams and support the implementation of gameplay systems

Participate in architectural decisions and the technical evolution of the platform

Research and implement modern technologies for distributed simulation and large-scale multiplayer environments

Develop integrations with modern game engines and online services

REQUIREMENTS

Strong proficiency in Rust and C/C++

Experience in game development, particularly multiplayer and online projects

Solid understanding of multiplayer architecture, networking, and distributed systems

Strong expertise in low-level high-performance programming

Good understanding of network protocols and client-server architecture

Experience optimizing performance and scalability of high-load systems

Understanding of real-time networking and latency-sensitive systems

Experience with industry-standard game engines such as Unreal Engine, Unity, or similar

Understanding of cloud infrastructure, distributed environments, and multi-cloud architectures

Strong knowledge of data structures and algorithms

Strong debugging, profiling, and problem-solving skills

Interest in modern networking technologies and distributed simulation systems

Strong communication skills and ability to work effectively in a team environment

At least 5 years of professional experience specifically in multiplayer game development or real-time distributed networks

Nice to Have

Experience working on MMO or large-scale multiplayer projects

Experience with low-level network optimization

Knowledge of QUIC, UDP/TCP internals, or modern networking approaches

Experience with eBPF/XDP, DPDK, or similar performance-oriented technologies

Experience developing distributed backend infrastructure for games or real-time systems

Benefits

We are passionate about fostering a supportive environment for our team, so we prioritize the physical, mental, and emotional well-being of our employees through a comprehensive Benefits Program. This includes unlimited Flexible Time Off and a personalized career roadmap for each employee. By investing in professional development through training and educational opportunities, we ensure that our team thrives both personally and professionally. Together, we’re not just building a business; we’re cultivating a community that values creativity, collaboration, and the transformative power of play.

The duties and responsibilities of this position may evolve over time to support the organization’s goals and individual growth. This job description is intended to outline the general nature and level of work being performed and is not intended to be an exhaustive list of all duties, responsibilities, and qualifications required.

By submitting your application, you consent to Xsolla conducting background checks, where permitted by law, after the final interview stage. All checks will comply with local regulations, and your information will be handled confidentially.

Xsolla takes your privacy seriously and will not sell or externally distribute any personal data received during the hiring process. In accordance with applicable data protection laws, Xsolla is committed to protecting your personal information and respecting your privacy.

For any inquiries related to data privacy, please contact: careers@xsolla.com

Explore more opportunities at: https://xsolla.com/careers

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