Online Programmer

Senior Online Programmer

Join to apply for the Senior Online Programmer role at IO Interactive. A passion for fantasy worlds has long been ingrained in our studio, and at last, we can announce that we have embarked on a journey into that beloved realm. With a party of veteran IOI guild members and new wizards and sorceresses of the industry, we are building an ambitious new IP for console and PC that will revolutionise the online fantasy RPG genre.

If you share a similar passion for creating welcoming, heartfelt, bold and impactful worlds, join us, and together we will write the next chapter in IOI's history.

This is a permanent position based in one of our studios, with the option to work from home 1 day per week.

• Plan and develop the online game features for the titles currently in production, in line with the overall online vision for each project.
• Maintain a prioritised backlog of online features.
• Align plans and solutions with your lead, other developers, and producers.
• Develop and maintain our online game technology and tools, as well as game‑specific code, on the server and on the client side.
• Optimise code and data structures to deliver the best possible performance.
• Help programmers and designers get the most out of the game systems.
• Collaborate with programmers and content providers from their own teams as well as other teams to make optimal solutions.

• One or more shipped online client/server products (games, web services, cloud solutions, etc).
• Strong knowledge of C++, but we would love it if you also have knowledge of C# and code design.
• Experience building and deploying cloud‑native solutions, eg. using Azure (preferred), AWS, or GCP services.
• Advanced understanding of TCP/IP, UDP, NAT, and in-depth knowledge of networking models.
• Excellent written and verbal communication skills in English.
• A collaborative attitude.

• Experience building game features using off‑the‑shelf cloud solutions, such as Play Fab (preferred), Game Lift or Pragma.

IO Interactive is an independent videogame development and publishing company with studios in Copenhagen, Malmö, Barcelona, Istanbul and Brighton. As the creative force behind some of the most talked‑about multiplatform video games in the last decade, we are committed to creating unforgettable characters and experiences – all powered by our award‑winning, proprietary Glacier technology. IOI is a studio that values in‑person collaboration.

Being together helps us focus our collective energy on our immediate goals, strengthens relationships, and improves knowledge‑sharing. We believe that the more time we spend together, the more quality and progress we achieve for our games and players.

• Mid‑Senior level

• Full‑time

• Engineering and Information Technology

• Computer Games

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