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The role
The next generation of AI learns through experience, not just static datasets. This lab builds interactive, resettable digital environments where AI agents navigate software, complete tasks, fail, and improve. Data here is a fundamental input to how those AI systems and training environments get built, not a supporting analytics function.
You'll join the Platform team, a data specialisation within software engineering, not a separate analytics silo. This is end-to-end ownership: framing, architecture, implementation, and production operation for the core data problem. You won't inherit a mature platform or be handed detailed specs; you'll shape foundational systems and own the outcomes.
The work
- Design and build scalable systems for acquiring, ingesting, and integrating large, messy, and varied datasets.
- Develop robust validation, sanitisation, and PII-removal layers to ensure data safety and quality.
- Tackle complex data problems: duplication, corruption, inconsistent formats, and provenance.
- Make critical architectural decisions across storage, reliability, observability, security, and cost.
- Ensure reliable, high-quality data availability for AI training environment engineers.
What You Bring
- Built and operated substantial production data systems end-to-end, owning architecture, implementation, and production behaviour.
- Strong software engineering fundamentals; deeply hands-on with code, beyond configuring tools.
- Experience with large, complex, or messy datasets (unstructured text, web, machine-generated data), and can articulate the challenges.
- Sound judgement across storage, processing, reliability, scalability, and cost; able to discuss trade-offs.
- Comfortable with cloud infrastructure and debugging complex production systems.
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Senior Data Engineer, Platform (up to £200k) employer: Dex
At Dex, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration. Our London-based team enjoys a hybrid working model, competitive benefits, and ample opportunities for professional growth, all while contributing to cutting-edge technology in the healthcare sector. Join us to make a meaningful impact in real-time systems and edge deployment, surrounded by a supportive team dedicated to excellence.
