Mobile / Web Developer Intern for AI Spatial Products

vor 2 Wochen

Zürich, Zürich, Schweiz sizeless (YC S23) Vollzeit

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: / 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, , 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
.

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