Senior Backend Developer (Rust / C++), 6 months Contract (open to extension)

Serbia

Long Leap Games – Long Leap Games /

Contractor /

Remote

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: [email protected]

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

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

apply for this job

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

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

Senior Backend Developer (Rust / C++), 6 months Contract (open to extension)

Job Description