Mobile/Web Developer – AI Spatial Products
Posted 97ds ago
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Job Description
Mobile / Web Developer for Sizeless, a YC-backed startup digitizing buildings. Focus on mobile capture experience and 3D visualization.
Responsibilities:
- 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
Requirements:
- 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
- Bonus: Experience with spatial applications, AR, or 3D viewers
- Exposure to geometry, mapping, or visualization-heavy products
Benefits:
- 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
- All necessary equipment – up to you to decide what you prefer
- Opportunities to learn and grow with us
- Familial working atmosphere in an open-minded multinational team
- Shape the future of digital twins and spatial data for buildings
- Tackle unique technical challenges in computer vision, 3D reconstruction, and spatial intelligence












