Romania onlyAbout the company
Sizeless turns smartphone videos into high-accuracy digital twins of buildings and infrastructure — no special hardware needed. Their mission: digitize the built world and provide a unified data layer that empowers architects, engineers, and energy consultants to make smarter, faster decisions — unlocking new insights and AI-driven applications.They are a small, high-energy, YC-backed team delivering outsized impact. You will work directly with their founder & CTO, push the boundaries of computer vision and 3D reconstruction, and spatial intelligence. All roles tackle the same core challenge: turning smartphone video into reliable, structured spatial data.
You’ll Work On
They are looking for a Mobile / Web Developer to help build and scale their mobile capture experience and 3D visualization stack. You will work on production systems that turn real-world environments into usable digital building data. This role sits at the intersection of mobile development, web front-end, and 3D visualization. While you will interface with computer vision and spatial data, the focus is on product, UX, and reliable delivery.
Your Profile
- Strong experience in mobile or web development (iOS / Swift and/or modern web frontend)
- Solid frontend fundamentals and product-oriented thinking
- Experience with or strong interest in 3D visualization (e.g. Three.js, WebGL, interactive 3D UIs)
- Comfortable working with complex datasets and performance-sensitive applications
- You enjoy ownership, fast iteration, and working in small, high-impact teams
- Experience with spatial applications, AR, or 3D viewers
- Exposure to geometry, mapping, or visualization-heavy products
- Build and improve the mobile capture experience (iOS), including: reliable video acquisition, smooth scanning flows, error handling and real-time user feedback
- Contribute to processing and visualization pipelines, integrating reconstructed geometry and large spatial datasets
- Develop and extend the web-based 3D Viewer using Three.js / WebGL
- Implement interactive tools such as camera controls, measurements, and UX improvements
- Collaborate closely with backend and algorithm teams to integrate new features into production
- Ensure performance, usability, and reliability across devices
- Take ownership of features through implementation, deployment, and iteration
- (Optional) Collaborate with the AI / algorithm team to integrate new spatial or geometry-related capabilities into the product
- Tackle unique technical challenges in computer vision, 3D reconstruction, and spatial intelligence
- Be part of a small, high-impact team backed by Y Combinator and world-leading investors
- Shape the future of digital twins and spatial data for buildings
- Familial working atmosphere in an open-minded multinational team
- Working remotely (from Romania)
- All necessary equipment – up to you to decide what you prefer
- A budget for professional improvement (courses, conferences, books)
- A budget for multi-benefits platform (meal tickets, private pension, etc.)
- Premium private medical subscription with nationwide coverage
- Budget for mastering English and German
- Skilled and senior co-workers
- Opportunities to build products that really make a difference
- Opportunities to learn and grow with us
Serbia
CH and GB only
AL, AD + 48 more
BE, BG + 18 more
