Software Engineer - Simulation / Unreal Focus

All3 is transforming how buildings are conceived, developed, and delivered. We combine AI-powered design with robotic prefabrication and on-site assembly to build custom architecture at the cost and speed of mass production - unlocking even the most complex sites.

We’re currently seeking a Software Engineer – Simulation / Unreal Focus to join our team, focused on building a deterministic, physics-accurate simulation platform for multi-robot construction assembly. You will develop high-performance Unreal-based systems that replicate real-world robotic behaviour and enable large-scale autonomy testing.

• Building a scalable, headless, deterministic simulation platform for multi-robot on-site construction assembly;
• Simulating coordinated robotic systems operating in shared physical space. Including manipulation, contact, constraints, tolerances, and assembly sequencing;
• Implementing physically grounded sensor models (LiDAR, cameras, IMUs) to support autonomy and perception development;
• Designing high-performance data bridges between Unreal Engine and external C++/Python robotics stacks to enable large-scale scenario testing and AI validation.

• Experience (2 years+) delivering high-fidelity, performance-critical systems in Modern C++ and Unreal Engine;
• A strong foundation in mathematics and physics, with the ability to reason from first principles.
• Comfortable working inside complex real-time systems, writing clean, maintainable C++ within Unreal’s framework.
• A physics-first mindset: you think in forces, constraints, contact, timing, and determinism — and care about replicating real-world behaviour accurately in code.
• Experience shipping titles or deploying simulation products is highly valued.

• Chance to be a part of a large-scale project;
• Team driven by impactful cause;
• Hybrid format of work with the lab located in Park Royal;
• Private dental or full medical (dental treatments aren’t covered) insurance;
• Flexible working schedule;
• 28 days of annual leave.