Lead Simulation Engineer

The role

This senior technical leadership role owns the architecture, standards, and delivery of simulation technologies. You will manage a team of 4+ engineers and oversee real-time XR training experiences and physics-based engineering models.

What you will do

• Take full responsibility for technical direction, project implementation, and team leadership across the Simulation team.
• Design the architecture for scalable, real-time simulation systems.
• Lead development of reusable components shared across XR/VR training and physics-based engineering models.
• Own technology-stack decisions for the simulation layer.
• Design solutions for client projects and oversee their implementation.
• Advise product and design on what is technically feasible.
• Set technical direction and standards for simulation code.
• Manage and mentor a team of 4+ simulation engineers.
• Oversee work from team augmentation and outsourcing partners.
• Set the roadmap for shared code, common ways of working, and productivity metrics.

Required qualifications

• 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 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.
• Experience with other engines (e.g. Unreal) and scalable application architectures.

Benefits

• Private healthcare with AXA
• A fully serviced, modern office in Central London
• Work-from-home budget to build a setup that works for you
• 25 days holiday + bank holidays, increasing 1 day per year up to 30 days
• A perks package

About the company

Fundamental XR builds immersive training solutions for the med-tech, medical device, and life sciences industries. They work with names such as Philips, Johnson & Johnson, AbbVie, Abiomed, Novartis, and Orbis International.