1The role
A medicine can now be designed for a single patient. But in medicine nothing ships without proof—the methods, records and sign-offs that show a dose was made right—and that proof still takes years. Seal turns it into software.
The work is real. Medicines are manufactured on our platform, and the records it produces inform whether a batch can be released. You can read our mission.
You will own the primitives everything else stands on: the data model, the automation engine, the AI interfaces. Seal works like a developer platform for scientists—everything is version-controlled, and configuration ships in change sets that work like pull requests for scientific processes. Customers compose their own operating systems from what you develop, so each capability has to be designed one abstraction deeper than the feature it enables.
The platform is TypeScript, AI-native from the start. Today Neil investigates across a customer’s records and proposes process configurations for people to review and approve. Your next problem is putting it into the runtime: agents that reason over the data the platform captures, flag risks and propose the decisions people then make.
We are a tiny team with an extremely high bar. There are no tickets. Each week we argue about what matters, and you take one problem end to end: the spec, the architecture, the code, the ship.
There is no customer success layer. You talk to customers directly, share an on-call rota covering US time zones and fly on site when it matters—wherever in the world that is. You are the person who hears when something breaks. That is the point.
You think from first principles and care pathologically about product—able to hold the aesthetic of a UI in your head while designing the primitives beneath it. What languages you know matters far less than how you think and how hard you go.
This is an in-person role in London. We sponsor visas for the right person. If this compels you rather than intimidates you, join us.
224-hour hiring process
- Fill out the form. The application takes under 60 seconds. Give us three concise bullets with evidence of excellence. Do not prioritise related experience.
- Short interview with a founder. If we see a potential fit, we’ll message you the same day to arrange an interview. Do not prepare. The format of the interview is unusual and direct: we are trying to figure out as quickly as possible why it might not be a fit. We’ll end the call as soon as we think it isn’t; most interviews last under five minutes. Otherwise, we’ll leave time for your questions and may follow up by phone or WhatsApp with more questions.
- Offer or work trial. If it’s a yes, we’ll make an offer. Application to decision in under 24 hours, including screening, interview and follow-up questions; if you’re not currently in a role, the decision may be a work trial. Real urgency is our first principle, and we’ll expect you to match it.