Rayon’s mission

• Rayon is building the next generation of architectural design software. More collaborative, simpler, smarter and more beautiful.
• The design of building and spaces has a huge impact on our lives. Climate change, affordable housing, sustainable urbanization, future of work: all of these challenges will require us to design a better and more efficient built environment.
• But, whereas architectural design is by essence a collaborative endeavor, the tools currently used by architects and designers are not made for collaboration and sharing knowledge. They are complex, they are expensive and they are stuck in an era pre-internet with desktop computers as their paradigm.
• We are building a browser based collaborative real time multiplayer floor plan editor in order to democratize architectural design and empower designers to create more efficient spaces and buildings.

Who are we?

• We are a small team of 35+ people passionate about web technology, architecture and the built environment. First and foremost, we love building amazing tools for creators.
• Rayon was co-founded in October 2021 by Bastien Dolla, an engineer (Polytechnique & Ponts et Chaussées) with 15 years of experience in tech and real estate, and Stanislas Chaillou, an engineer and an architect (EPFL & Harvard) with a background in ML research applied to architecture. Both have published research papers on AI algorithms applied to architectural design (for example here, here and here) and have already been co-founder or early employees of previous high growth startups at the crossroads of tech and real estate (habx.com, spacemakerai.com).
• Rayon is backed by world-class Investors (Seedcamp, 20VC, Foundamental, Kima) and amazing business Angels such as Ralph Gootee, co-founder of plangrid (acq. by Autodesk), Joe Thomas co-founder and CEO of Loom , Thibaud Elziere founder of eFounders, Nicolas Steegmann co-founder of Stupeflix, Riggs Kubiak founder of Honest buildings (acq. Procore), Jonathan Widawski founder & CEO of Maze.
• Rayon is a French company based in Paris. We are open to remote positions in time zones close to European Central Time.

What you will be doing

As a Senior Software Engineer, you will:

• Maintain and evolve Rayon’s Rust CAD engine, including the geometric kernel, rendering pipeline, and core performance-critical systems
• Work on WebAssembly execution (multi-threading, memory, performance, bindings design) to push the limits of what runs in the browser
• Collaborate closely with product and frontend engineers in your squad to deliver real-time collaborative experiences
• Contribute to architectural decisions to improve performance, scalability, and reliability
• Mentor other engineers and help raise the technical standards across the team

What are we looking for?

<aside> 💡 These points are here to give you an idea of what we think would be a good fit for the job. They are not hard requirements. If you do not fit them perfectly but feel like you would do the job well, do not hesitate to contact us!

</aside>

• First and foremost a passion for crafting tools for creators with the highest quality and performance