> Markdown version of [/jobs/ext/14994-core-qualifications](https://www.wearedevelopers.com/jobs/ext/14994-core-qualifications). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Core Qualifications - **Company:** Cybernetic Walrus - **Location:** Antwerpen, Belgium - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** C Sharp (Programming Language), Video Game Development, Computer Networking Systems, Backend - **Published:** May 13, 2026 - **Apply:** https://be.indeed.com/viewjob?jk=56dae04dfe3b73ae ## About the Role Do you have experience in Unity?, * Minimum 5 years of professional Unity experience * Experience working in a professional game development team of approximately 5-10 people * Experience working in an agile game development environment * Shipped at least one commercial game (preferably multiple) * Strong experience with Photon networking solutions * Strong C# programming skills * Experience optimizing multiplayer gameplay performance, synchronization, and networking systems * Able to work independently within a flat studio structure * Comfortable taking ownership and responsibility without heavy management layers * Able to work onsite in our Antwerp studio at least 3 days per week * Bonus Points * Experience shipping multiplayer co-op games * Experience with console development, especially Xbox and PlayStation platforms * Familiarity with backend services and online systems ## Description As a Senior Multiplayer Programmer, you will play a key role in designing, implementing, and maintaining robust multiplayer systems in Unity using Photon., * Develop and maintain multiplayer gameplay systems using Unity and Photon * Work closely with designers, artists, and gameplay programmers in a multidisciplinary team * Help architect scalable and maintainable networking solutions * Optimize synchronization, prediction, replication, and multiplayer performance * Solve complex gameplay and networking challenges for co-op experiences * Take ownership of systems and contribute to technical decision-making * Support multiplayer features across PC and potentially console platforms ## Related Videos - [WeAreDevelopers LIVE - "Fun and games - and all that comes with it", Back to BASIC & more](https://www.wearedevelopers.com/videos/1719-wearedevelopers-live-fun-and-games-and-all-that-comes-with-it-back-to-basic-more) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [What AI Can, Can’t, and Shouldn’t do for Games](https://www.wearedevelopers.com/videos/997-what-ai-can-can-t-and-shouldn-t-do-for-games) - [A Hitchhikers Guide to Container Security - Automotive Edition 2024](https://www.wearedevelopers.com/videos/1119-a-hitchhikers-guide-to-container-security-automotive-edition-2024) - [The Future Past of Technology - A Game Developers POV](https://www.wearedevelopers.com/videos/1386-the-future-past-of-technology-a-game-developers-pov) - [Winning talents through play - Corporate Gaming with AKEYI](https://www.wearedevelopers.com/videos/1062-winning-talents-through-play-corporate-gaming-with-akeyi) ## Related Articles - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 105 - Security First](https://www.wearedevelopers.com/magazine/393-dev-digest-105-security-first) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Jobs in Tech: The State of the European Market](https://www.wearedevelopers.com/magazine/575-jobs-in-tech-the-state-of-the-european-market) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)