Senior Unity VR Engineer, Client Platform Infrastructure

Senior Unity VR Engineer, Client Platform Infrastructure The Company: We are a US-founded early stage start-up with an R&D team located in Europe. Our mission is to make learning accessible, relevant, and individualized to keep up with the changing world. We are developing a personalized virtual trainer experience, integrating generative AI and learning engineering to build a VR simulator for immersive hands-on skills training. Our learning engineering approach customizes content and feedback in real-time, directly improving learning outcomes. We are looking for a Senior Unity engineer to help build the client-side infrastructure of our training platform. This is not just one-off application work. You will build the client foundation that powers VR training simulations today, and additional client targets over time, connecting it to our server according to a defined client-server architecture. The role demands strong application architecture, on-device services, and performance optimization skills. The Role: This is a hands-on individual contributor role focused on building and evolving key components of our platform's client-side architecture. You will build client infrastructure against a defined server-client architecture in which the server owns authoritative simulation state and logic, connecting the client to the server per spec and reflecting server-owned behavior faithfully on the device. Key Responsibilities: Own and drive key components of the Unity VR client architecture so they generalize across training simulations and, over time, additional client targets, rather than serving a single application. Build client-side infrastructure that connects to the server according to defined contracts and reflects server-owned state and behavior on the device. Co-design the client-server API with the backend, defining the data contracts. Develop tooling that supports content creators and other developers working on the platform. Use AI coding assistants as part of day-to-day development, and build and maintain the pipelines and validation that make their output reliable. Make pragmatic architectural decisions and manage technical priorities effectively in a fast-paced, ambiguous startup environment. Requirements: Demonstrated professional Unity and C# experience, ideally 5+ years, with a track record of shipping complex applications or products. A portfolio demonstrating experience architecting and refactoring large-scale Unity projects. Direct experience building for VR, in particular Meta Quest. A track record of building generic, reusable infrastructure and frameworks, not just one- off features. Comfort working within a defined client-server architecture and with established API contracts. A proactive and adaptable mindset suited for the dynamic and evolving environment of an early-stage startup. Excellent communication and collaboration skills in English, with experience working effectively in a remote, culturally diverse team. A genuine interest in using technology to enhance learning and education. Nice To Have: Experience targeting additional client platforms such as WebGL. Experience with data-driven or reactive component systems. What We Offer: A high-ownership role with direct influence on product direction, architecture, and user experience, and on company culture. A senior opportunity to build a platform from the ground up and contribute to its growth and commercialization. The flexibility of a fully remote position, with working hours flexible across European time zones rather than tied to US hours. Locations Europe Remote status Fully Remote