Location: Old Street (4-5 office days/week)
About the company
This early stage start-up is processing hundreds of thousands of unstructured financial documents into clean, structured datasets for some of the world's largest financial institutions - producing the output of 50, with a team of 5.
Forecasting £1.5m revenue within their first 12 months, they have an immense potential - not based on hype or inflated valuations, but rather achieving mega productivity through intelligent application of AI agents.
Their mid term goal is ~£50m revenue with a sub-30 person team. What's in it for you?
* Profit share. Cash in your account on regular basis - not a promise of a huge payout IF the company succeeds and sells.
About the role
You’ll own data infrastructure end-to-end – ingestion, transformation, storage, delivery.
The current agent system works. Your job is to scale it: more documents, more asset classes, more clients. You’ll make architecture decisions, push the boundaries of agentic tooling and ship data as a product to institutional buyers who rely on it for decisions that move millions.
Full ownership from day one, with a genuine progression trajectory for the right person.
This is a predominantly backend/infra DE role. No dashboards, no stakeholder reporting – just the engine that powers everything. You’ll be the most senior person in your domain from day one, with no one above you in this function – and a clear path to leadership later down the line.
Must have requirements
* Roughly 3-6 years experience building performant data pipelines and ML systems in production at a company where data is the core product, not a support function
* Genuinely AI-native experience: Claude Code, Cursor or equivalent as your daily environment – not occasional experiments
* Python, Postgres, async, queues – fluent and battle-tested
* Experience in a small team (2-30 people) where you owned the whole function without a safety net
* Data quality obsessive – inconsistencies bother you until they’re fixed, not flagged and forgotten
* Experience with LLMs in production / agentic workflow design
* Web scraping and document parsing at scale
* Staff/Principal-level IC ownership at a larger org
Visa sponsorship
VISA sponsorship is available if needed (but you need to be already living in the UK)
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