A broad role on purpose. You would build across the whole of Seisa: getting a firm’s data in, turning it into facts that can be trusted, answering questions and drafting work from those facts, and the app people use every day.
Why this role, why now
You would be one of the first engineers. The calls you make on how Seisa reads, links and answers will shape the product for years, and you will see them in front of the investment teams who use it.
What you will do
Ingestion and connectors
Microsoft 365 (SharePoint, OneDrive, Outlook) and other sources, and parsing messy PDFs, spreadsheets and email.
The knowledge graph
Extraction, entity resolution and versioned facts, kept fast and correct as a firm’s data grows.
Retrieval, agents and workflows
Turning a question into a cited answer, or into a drafted memo.
Evaluation
Knowing, with evidence, whether a change made things better.
The app
A Next.js and TypeScript front end on Python services.
Time with the firms
Sitting with an investment team during a pilot when their setup needs it.
What we look for
- You have shipped production software and owned something that would break if you left.
- You have built with language models beyond a demo, for extraction, retrieval or agents, and dealt with them failing.
- Range across the stack, and comfort making calls without a full spec.
- Interest in the domain. You do not need a finance background; we will send you a primer.
- Probably two to eight years of hands-on engineering.
Stack
Python, TypeScript and Next.js, Neo4j, Postgres on Supabase, GCP (Cloud Run, Cloud Tasks, Vertex AI), Langfuse. We use Claude Code and similar tools every day.
How we hire
- 01
Intro
30 minutes, a call
What you have built, what you want next, and what Seisa is.
- 02
Technical
1 hour, in Paddington
With two of our engineers: something you shipped end to end, and a short entity-resolution exercise.
- 03
Half-day build
With the team
Half a day on a real-shaped problem, using your normal tools.
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Founding Engineer Engineering · London (Paddington), hybrid Read employer: Seisa
Seisa provides a unique opportunity for professionals to engage in meaningful work that directly impacts the investment community. Employees enjoy a collaborative culture that encourages innovation and personal growth.
