Graphics Programmer

IO Interactive A/S; København; On-site; GBP 70,000 - 110,000; Full time

Job summary

IO Interactive in the United Kingdom seeks an experienced Graphics Programmer to own our rendering systems and drive the graphics pipeline across multiple projects, including console generations. You will inherit Glacier-based code and push stability, performance, and visual quality from day one.

You will write robust C++ code, profile and optimize for CPU and GPU, and collaborate with engine teams to improve data flow, memory management, and rendering integration.

Qualifications

• Shipped at least one AAA title as a graphics programmer.
• Strong C++ programming at engine level.
• Expertise with graphics APIs and shader programming.

Responsibilities

• Own and maintain rendering systems and graphics pipelines across multiple projects and console generations.
• Write robust, performant C++ code for Glacier engine core.
• Profile, debug, and optimize rendering performance on CPU and GPU.
• Collaborate with engine teams to improve data flow, memory management, and rendering integration.
• Implement and optimize advanced rendering techniques for complex scenes and effects.
• Maintain and strengthen rendering architecture as projects move to production.

Skills

AAA title experience

C++ expert

DirectX

Vulkan

Shader programming

Performance profiling

Cross-platform

Ownership

Job description

We're looking for an experienced Graphics Programmer to step in and own our rendering systems as we continue development on multiple high-profile projects. This is an immediate need, and we need someone who can take full ownership of complex rendering challenges from day one.

We have a strong foundation in place, but we need a skilled engineer to stabilize and advance our graphics pipeline as projects scale. This role is about stepping into a critical position, taking ownership of proven systems, and ensuring rendering performance and quality across our portfolio. You won't be building from scratch; you'll be inheriting well-architected systems and the responsibility to maintain, optimize, and evolve them as our projects demand. If you thrive on ownership, solving real problems under deadline, and delivering results on systems that matter, this is the role for you.

What you will do

• Own and maintain rendering systems and graphics pipelines across multiple projects and console generations

• Write robust, performant C++ code that forms the backbone of our proprietary Glacier engine

• Profile, debug, and optimize rendering performance across CPU and GPU, with deep focus on platform-specific constraints

• Collaborate with engine systems teams to improve data flow, memory management, and rendering feature integration

• Implement and optimize advanced rendering techniques for complex visual systems including cloth, crowds, terrain, weather, and environmental effects

• Maintain and strengthen rendering architecture as projects move into production

Who you are

• Shipped at least one AAA title as a Graphics/Rendering Programmer

• Strong C++ programmer with deep experience in engine-level graphics systems

• Proven expertise in graphics APIs (DirectX, Vulkan, or equivalent) and shader programming

• Experienced with performance profiling and optimization in large-scale codebases

• Strong grasp of GPU architecture, rendering pipelines, and graphics theory

• Comfortable working across multiple platforms with a focus on console development

• Excellent communicator who can work effectively in a distributed, multicultural team environment

• Able to step into established systems and take ownership quickly

Why join us

You'll join a team where your work is immediately impactful and your ownership is valued. We're not asking you to build something from scratch; we're asking you to step into a critical role, maintain excellence, and help drive our projects forward. If you're looking for a position where you can make a real difference in a high-pressure environment, this is it.

About IO Interactive

IO Interactive is an independent videogame development and publishing company with studios in Copenhagen, Malmö, Barcelona, 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. For us, being both in-office as well as connected across our studios helps us integrate our teams faster, strengthen relationships, and improve knowledge-sharing. We believe that the more time we spend together, the more quality and progress we achieve for our games and players.

We know that to achieve those goals, we need courage, talented people and a great working environment – and we do our utmost to have all of that. Across our multiple studios, we’re working on several projects. Crucially though, we’re all one team. We value the work and impact that each person brings to the table and we actively encourage new ideas, whilst listening to your insights along the way.

We have a dedicated team of People Managers, who look after you as an individual and as an employee. With more than 40 nationalities, we know that everyone is different and we are proud to have a reputation for being a friendly workplace with highly-talent people.

Learn more about our Glacier engine.