Principal Rendering Engineer

The Multiplayer Group; United Kingdom; Hybrid; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Flexible working

Mental health support

Strong pension plan

Minimum 25 days' holiday

Family-first parental leave

Annual learning budget

Job summary

The Multiplayer Group based in the United Kingdom is seeking an experienced rendering engineer to design and build high-performance rendering technology. You will work closely with the art team to turn their vision into reality, optimizing rendering systems for AAA games and simulations.

The ideal candidate will have a solid background in modern C++, experience with GPU-driven workflows, and a passion for creating scalable technology. Enjoy flexible working hours, comprehensive benefits, and opportunities for professional growth.

Qualifications

• Proven experience in rendering or engine engineering for high-performance systems.
• Deep knowledge of C++, shader authoring, and debugging.
• Experience with Metal, DirectX 12, and Vulkan, plus GPU-driven pipelines.

Responsibilities

• Transform artistic vision into scalable rendering technology.
• Design and maintain high-performance rendering backends.
• Profile and resolve GPU/CPU performance issues.
• Modernize rendering pipelines with advanced GPU techniques.

Skills

C++

Shader authoring

Rendering systems

GPU/CPU bottlenecks

3D maths

Job description

Qualifications

• An established track record in rendering or engine engineering, shipping high-performance rendering systems for AAA, film/VFX, XR or simulation across a number of products
• Deep experience with modern C++ and solid shader authoring and debugging (HLSL, MSL or GLSL)
• Production experience shipping with at least two of Metal, DirectX 12, Vulkan or GNM/GNMX
• Deep working knowledge of the full pipeline: rasterization, compute and hardware-accelerated ray tracing
• Fluency in modern rendering techniques: PBR, GI, ambient occlusion, volumetrics, and post-processing (AA, HDR, tone mapping, motion blur), with awareness of current GPU-driven pipelines, meshlet rendering, and real-time path tracing workflows
• Comfortable dropping into unfamiliar codebases and making sound architectural calls independently
• Solid applied 3D maths, plus technical writing other engineers actually want to read

Bonus Points

• Practical experience with mesh shading pipelines (DX12, Vulkan, Metal) to optimize geometry processing and reduce CPU overhead
• Familiarity with modern hardware variations, including console and Apple Silicon unified memory architectures
• Shipped ray tracing or heavily compute-driven rendering
• Extensive Unreal Engine source modifications

What You'll Do

• Turn the art team’s vision into shippable, scalable rendering technology
• Design, build and maintain high-performance rendering backends with clean abstractions across PC, console and Mac
• Profile and resolve deep GPU/CPU bottlenecks: occupancy, tile memory pressure, indirect dispatch overhead, bandwidth
• Modernize pipelines with GPU-driven culling, indirect command buffers and bindless architectures
• Design concurrent GPU memory management on modern API features and memory heaps
• Extend major engines (including Unreal source) and custom C++ architectures
• The opportunity to represent the studio externally through white papers or presenting at industry events

Our Benefits

• Flexible working: Remote-friendly long before it was the norm, with core hours that support both great work and real life.
• Support & wellbeing: Mental health first-aiders, therapy and coaching via Myndup, plus private medical insurance to help you stay healthy and supported.
• Pension & life cover: A strong pension plan and life insurance to support your future and protect your family.
• Time for you: Minimum 25 days’ holiday, a paid winter break, and 3 volunteering days each year to give back to causes you care about.
• Parental leave: Family-first policies that support parents and caregivers with flexibility and balance.
• Levelling up: Annual L&D budget, expert talks, game jams, and mentoring opportunities to help you grow your skills and career.

Keywords Studios is dedicated to following a well-established Equal Opportunities Policy. We endeavor to create a workplace which provides for equal opportunities for all employees and potential employees.

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