Mirigos

About Us

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're 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.

About the Product

We are building a VR training platform that uses generative AI and learning engineering to deliver personalized, hands-on skills training.
 

The product runs immersive training simulations on Meta Quest. A backend service owns the authoritative simulation state and business logic, while the Unity client renders the experience, manages device-side services, and communicates with the backend through defined APIs.

This is a platform engineering role, not a one-off game or simulation project.

The Role

We are looking for a hands-on Senior Unity Engineer to own major parts of the client platform architecture.

You will build reusable Unity infrastructure that supports multiple training simulations and content teams. You will work closely with backend engineers to define API contracts, integrate server-controlled behavior, and ensure that the VR client remains reliable and performant on Meta Quest.

This role is best suited for someone who has built or substantially refactored complex Unity applications and enjoys creating systems that other developers build upon.
 

What You Will Do

• Design and implement reusable Unity client architecture for multiple VR training simulations.
• Build the integration layer between the Unity client and the server, including API contracts, data models, state synchronization, error handling, and recovery behavior.
• Develop device-side services and shared components used across simulations.
• Build Unity Editor tools and workflows for developers and content creators.
• Profile and optimize CPU, GPU, memory, loading, and runtime performance on Meta Quest.
• Establish practical engineering standards for testing, validation, maintainability, and releases.
• Collaborate directly with backend, product, learning, and content-development teams.
• Use AI coding tools where they improve engineering productivity, while maintaining appropriate review and validation standards.
• Make pragmatic technical decisions in an early-stage product environment.
   

Required Experience

• VR development for Android within the last five years, Meta Quest strongly preferred.
• 5 or more years of professional Unity and C# development experience.
• Experience architecting, modernizing, or substantially refactoring a complex Unity codebase.
• Professional experience developing VR applications for Meta Quest.
• Strong understanding of Unity performance optimization for standalone VR hardware.
• Experience designing reusable frameworks, shared services, SDKs, or platform components.
• Experience integrating Unity applications with backend services and structured APIs.
• Strong understanding of software architecture, dependency management, asynchronous programming, error handling, and maintainable C# design.
• Ability to work independently and communicate technical decisions clearly in English.
• English at B2 level or higher.
   

Nice to Have

• Experience with WebGL or additional Unity deployment targets.
• Experience with reactive, event-driven, ECS, or other data-driven architectures.
• Experience building Unity Editor extensions or content-authoring pipelines.
• Experience with automated testing, CI/CD, Addressables, remote content, or release automation.
• Experience with educational technology, simulations, or enterprise training.
   

What Makes This Role Different

• You will build the shared client foundation, not just individual features.
• You will have meaningful ownership of Unity architecture and engineering standards.
• Your work will directly affect multiple simulations, content teams, and future client platforms.
• You will work with a European R&D team on a fully remote schedule.
• European working hours are supported. Regular US-hour work is not required.