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XsollaXS

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

Xsolla is a global video game commerce company that provides developers and publishers with tools and services for funding, marketing, launching, and monetizing games across multiple platforms.

Xsolla

Employee count: 501-1000

Serbia only

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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

About the job

Apply before

Posted on

Job type

Contractor

Experience level

Senior

Experience

5 years minimum

Location requirements

Serbia

Hiring timezones

Serbia +/- 0 hours

Job categories

Backend DevelopmentGame DevelopmentMultiplayer Game DevelopmentRust DevelopmentC DevelopmentNetwork programmingReal Time Systems

Skills

RustC C++Network programmingMultiplayer Game DevelopmentDistributed SystemsUnreal Engine 5UnityGame Engine ArchitectureClient Server ArchitectureNetwork ProtocolsReal Time CommunicationsLow Level Systems ProgrammingCloud InfrastructureData StructuresDPDKMakeUnreal EngineeBPF

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About Xsolla

Learn more about Xsolla and their company culture.

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Xsolla is a global video game commerce company with a robust and powerful set of tools and services designed specifically for the video game industry. Founded in 2005 by Aleksandr Agapitov, the company empowers game developers and publishers to market, sell, connect, and optimize their games globally. Xsolla's solutions address the inherent complexities of global distribution, funding, marketing, and monetization, enabling partners to expand their audience, increase engagement, and boost revenue. The company's headquarters are located in Sherman Oaks, Los Angeles, California, with additional offices in various cities worldwide, including Berlin, Seoul, Kuala Lumpur, and Beijing. This global presence allows Xsolla to serve a diverse range of clients, from indie developers to AAA studios, and operate effectively in numerous international markets.

Xsolla's comprehensive suite of products includes Xsolla Pay Station, which supports over 700 payment methods in more than 200 countries and territories and over 130 currencies. Other key offerings include Xsolla Web Shop for Mobile Games, which allows developers to create their own branded online stores, and Xsolla Funding, which provides resources and opportunities for game financing. The company is committed to innovation and continuously adapts its offerings to meet the evolving needs of the gaming industry. This includes solutions for multiplatform delivery, secure global payments, cloud gaming services, and direct-to-consumer strategies. Xsolla partners with major industry players such as Valve, Twitch, Epic Games, KRAFTON, NetEase, and miHoYo, underscoring its significant role and reputation within the global gaming ecosystem. The company's mission is to level the playing field, ensuring that all creators have the opportunity to succeed and share their passion with a worldwide audience.

Employee benefits

Learn about the employee benefits and perks provided at Xsolla.

View benefits

Competitive salary

Offers competitive salary.

Flexible working conditions

Provides flexible working conditions.

Comprehensive medical coverage

Offers comprehensive medical coverage.

Career development

Offers career development opportunities.

View Xsolla's employee benefits
Claim this profileXsolla logoXS

Xsolla

Company size

501-1000 employees

Founded in

2005

Chief executive officer

Aleksandr Agapitov

Markets

Game MonetizationCloud GamingMobile GamingVideo Game IndustryDirect to Consumer PlatformsGame PublishingDigital PaymentsDeveloper ToolsFunding and InvestmentEcommerce

Employees live in

United States
View company profile

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