Lead Simulation Engineer

Fundamental XR builds immersive training solutions for the med-tech, medical device, and life sciences industries. We're VC-backed and our market position is unique. We work with some of the biggest names in the industry: Philips, Johnson & Johnson, AbbVie, Abiomed, Novartis, Orbis International, among others. This is a senior technical leadership role at the heart of our engineering organisation, owning the architecture, standards, and delivery of everything simulation-related, from real-time XR training experiences to physics and engineering modeling. Reports to the CPTO and is directly responsible for all Simulation technologies, managing a team of 4+ engineers.

Responsibilities

Own technical direction for Simulation, including project implementation and team leadership; Design the architecture for scalable, real-time simulation systems and lead development of reusable components shared across XR/VR training and physics-based engineering models; Lead estimation and delivery of client work, designing solutions and overseeing implementation; Raise the bar for engineering standards with focus on performance, accuracy, and maintainability; Lead and mentor a team of 4+ simulation engineers, including oversight of team augmentation and outsourcing partners; Own developer productivity, setting the roadmap for shared code, ways of working, and productivity metrics, and accelerate adoption of agentic coding techniques

Requirements

Proven experience building real-time simulation or XR systems in Unity, including creating and delivering major architecture strategies; Strong hands-on Unity experience; A track record of technical leadership, mentoring, and managing team performance; Current knowledge of agentic coding (Codex, Claude Code) and other AI-assisted tools and methods for software engineering, simulation creation and asset generation; Experience with Meta Quest (Horizon OS) and comparable XR platforms across VR, Mixed Reality and Web

Nice to have

Experience with other engines (e.g. Unreal) and scalable application architectures; Experience with data-powered digital twinning technologies and techniques; Domain experience in training/simulation for industry (rather than strictly gaming) applications; Performance profiling experience on constrained hardware (mobile/standalone XR); Prior experience leading teams in high-performance environments

Benefits

Private healthcare with AXA; A fully serviced, modern office in Central London; Work-from-home budget; 25 days holiday + bank holidays, increasing 1 day per year up to 30 days; A perks package