Principal Programmer

Principal Programmer (Generalist) C++ UE4/5 – Daresbury – Hybrid role, 3 days onsite

Applicants must have an unrestricted right to work in the UK.

This role requires eligibility for UK Security Clearance.

Salary to £80k plus benefits

Join MTX Solutions and help shape the future of defence technology, simulation, and digital engineering. Working alongside experienced engineers, ex-military specialists, and technology experts, you'll contribute to cutting-edge projects across video games, software engineering, AI, modelling and simulation, digital platforms, and advanced visualisation technologies.

MTX brings together expertise from both the defence and video games industries, applying the creativity, pace, and technical excellence of game development to solve complex real-world challenges. Whether you're developing immersive simulation environments, mission-critical software, or next-generation digital capabilities, you'll be part of agile teams delivering innovative solutions that make a real impact while working with the latest technology and retaining a strong engineering culture.

We’re looking for a Principal Programmer with strong Unreal Engine experience. We’re seeking a capable generalist who enjoys working across multiple areas of development and solving a broad range of technical challenges.

• Develop and maintain gameplay and core systems in Unreal Engine
• Optimise performance across CPU, GPU, memory, and load times
• Build custom tools to improve team workflows
• Mentor and support other programmers
• Collaborate closely with design and art teams

• Significant professional experience with Unreal Engine (UE4/UE5)
• Experience with optimisation and performance profiling
• Experience creating custom tools and pipelines
• Broad technical knowledge across gameplay and engine systems