Hey! We’re Semaloop 👋

Late last year, we stuck a bunch of iPhones in Charlie’s shed, connected them to a computer, and began building. Now, a few months later, we’ve secured over $3m in funding from investors and operators behind companies like Lovable, ElevenLabs, Hugging Face, Linear and Dropbox - and we’re already relied on daily by cutting-edge companies like Granola and Gopuff.

Sema-who?

We saw first-hand how building apps was being slowed by checks and balances. Whether at early-stage startups or tech-giants like Apple (where Rory previously worked), flaky tests blocked releases and QA slowed cycle time. Automating UI testing has been brittle and slow ever since the first smartphone came out in 2007.

We’re on a mission to change that by building agents that test apps like humans do: through sight, sound and touch. By solving for the human interfaces, developers don’t have to maintain special APIs, accessibility IDs or integrate new libraries (if you’re a mobile developer, we hope we haven’t triggered you!).

Instead, teams like Granola just describe how their app should work in plain English. When they ship new builds, Semaloop does the heavy lifting: verifying that the app works, and if not, figuring out what’s broken. That means an end to manual testing, and hours of time back per day for developers.

Crafting a truly magical experience for developers means building some category-defining technology. That’s why we’re assembling an all-star team here in London, with the ambition to truly change how software is made. If you’re excited by the idea of teaching computers to understand, reason and interact with digital interfaces, you belong on this mission with us.

Join our Talent Pool

Don’t see the right role right now? Stay on our radar for future opportunities at Semaloop.

What is it?

Our Talent Pool is a simple way to register your interest in working with us. When new roles open up, it helps us quickly find people who might be a great fit.

How it works

We don’t actively review every submission straight away, but it’s one of the first places we look when we start hiring. You only need to join once, and we’ll take care of matching you to relevant opportunities.

Who’s it for?

It’s open to everyone, regardless of role, background, or level of experience.

Will I hear about roles early?

Often, yes! We will reach out to people in our Talent Pool before roles are advertised more widely.

Can I speak to someone from the team?

We’d love to, but we’re not always able to speak with everyone. If there’s a strong potential fit, we’ll be in touch to set up a conversation.

How to join

Simply “Apply for this job”, upload your CV, add a few details about yourself, and you’re all set.

What we offer

Competitive salary + equity
28 days holiday + bank holidays
Private medical & dental (Bupa)
Generous parental leave
Pension matched up to 10% (Penfold)
Life assurance, critical illness & income protection