Mobile / Web Developer Intern for AI Spatial Products

**Join sizeless (YC S23) — Building the Data Layer of the Built World** At sizeless, we turn smartphone videos into high-accuracy **digital twins** of buildings and infrastructure — no special hardware needed. Our 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. We’re a **small, high-energy, YC-backed** team delivering outsized impact. Work directly with our 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** . Tasks **You’ll Work On** You’ll work directly with our CTO on the mobile capture and 3D visualization pipeline: turning smartphone video into reliable, structured spatial data that architects, engineers, and energy consultants can actually use. This is applied computer vision and 3D reconstruction with **immediate real-world impact** . **What you’ll do:** - Build and improve the mobile capture experience: reliable video acquisition, smooth scanning, error handling, and real-time feedback. - Optimize processing pipelines: reconstruction, feature tracking, and 3D model generation. - Work with CV & 3D geometry: tracking, depth estimation, and analytics. - Contribute to the web-based 3D Viewer: Three.js / WebGL implementation, interactive tools, and UX improvements. - (Optional/bonus) Collaborate with the AI/algorithm team to integrate new features or enhancements from the research side. Requirements **Who You Are** - You have experience in mobile or web development (React / iOS preferred) - You have strong problem-solving skills and curiosity for applied computer vision, 3D reconstruction, or spatial computing - You enjoy building end-to-end solutions and taking ownership - Bonus: Experience with 3D visualization, Three.js/WebGL, or AR/Spatial apps - You thrive in small teams, fast iteration, and high-impact environments Benefits **What We Offer** - Work directly with the founders & CTO, influencing core product and architecture - Tackle unique technical challenges in CV, 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 - Flexible work arrangements, autonomy, and a learning-first culture If AI, 3D tech, and real-world problem solving excite you, **come build the data layer of the built world with us** . Quelle: https://ch.linkedin.com/jobs/view/mobile-web-developer-intern-for-ai-spatial-products-at-sizeless-yc-s23-4350607207

Level: junior