c3

We're building a spatial intelligence data layer to guard the real world.

c3 is a software company building a data intelligence layer for the real world, based in London and Kyiv. We are building a technical team to focus on research and development of our proprietary systems.

Open Roles

  • Data Scientist Kyiv

    • You'll own the quality of our training data - labelling and cleaning the spatial, image and sensor data our SLAM capture pipeline produces
    • Rigorous about annotation consistency, dataset quality and edge-case coverage - you know a model is only ever as good as the data it learns from
    • Comfortable working with large volumes of real-world, messy, unstructured capture data, and building the tooling and processes that make it trustworthy
    • You measure what you improve - labelling guidelines, inter-annotator agreement, and a tight loop between data issues and model performance

  • Senior ML / Computer Vision Engineer Kyiv

    • Commercial experience building and deploying computer vision and spatial reasoning systems in production - this is not a research role
    • You've worked with real-world physical data at scale - unstructured, messy, and captured in conditions you didn't control
    • Strong fundamentals in model evaluation, dataset quality, and output explainability - you know that trustworthy ML is harder than accurate ML
    • You're motivated by the idea that the physical world is underrepresented in data - and that fixing that is a genuinely hard, genuinely important problem

  • Senior Backend Engineer Kyiv

    • Deep experience designing systems where data integrity is non-negotiable - immutable records, verifiable state, and audit-trail architecture
    • Commercial experience with blockchain integration and anchoring patterns - you understand why cryptographic proof matters for real-world data systems
    • Strong AWS-native infrastructure background - you've shipped distributed pipelines that handle failure, scale, and consistency without compromise
    • You build for longevity, not velocity - you understand that a data layer is only as valuable as the trust placed in it

  • Founding Partnerships Associate London

    This role is available exclusively to real estate students at Henley Business School.

c3 is a trading name of C3 INTELLIGENCE LTD, a company registered in England and Wales under Company number 17026866

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