Hard problems, great people, and life-changing outcomes.
Dex is a leading AI start-up focused on changing the way that Talent and Opportunity connect at scale.
Hiring is broken. 46% of new hires fail or quit in 18 months and 72% of candidates say that the recruitment process harms their mental health.
New tools in the market are making the problem worse. AI-written job descriptions and CVs and secret interview co-pilots are not the answer. It’s creating an AI arms race where everyone loses.
We believe there is a better way, and that’s why we’re building Dex.
We've been backed by a16z speedrun and Concept ventures and are now building out a small but might team. You can read more about us in tech crunch https://techcrunch.com/2025/04/29/a16z-backs-uk-startup-dex-to-scale-ai-talent-agent-and-recruitment-matchmaker/
We’re looking for an exceptional engineer with the ability and interest to work across the full stack. This role would suit a person that is motivated by breadth style challenges. Where what you are working on can change regularly, where you’ll have to use & learn new technologies regularly.
The kind of person that will love this role is someone that favours speed over all else, who focussed on “how do we get something working now” and worries about perfecting it later.
In an ideal world, you’ll have a broad range of skills across AI and prompt engineering, backend engineering (we’re using Go), and data engineering, with a keen eye for what makes a great product experience. We know this is a wide range of skills and don’t expect you to have all of them, so we love hearing about where you have particularly deep expertise or interest.
This is a place for extremely talented, kind people that want to hustle and take a shot at a life-changing outcome.
We don’t care about titles, years of experience, what school you went to or where you’re from.
What we care about is your ability and your attitude.
As an early employee you’ll have access and insight into as much of the wider business as you want, from sales to growth, ops, fundraising and anything else you are interested in. This kind of environment is well-suited for individuals that may want to found their own start-up in the future and are looking to gain exposure to what early-stage start-ups are like.
It won’t be easy. There will be jobs that will ask less of you and pay you more. What we can offer is a high trust, pace and accountability environment, with colleagues that want you to succeed. With no politics, games or time wasting and a shot at a life changing outcome if we are successful.
Interview process
1) 30 minute Intro with Paddy Lambros CEO
2) 45 Technical Screen with Harry Uglow CTO
3) 45 minute pair coding exercise (Remote)
4a) 60 technical design exercise with Harry (ideally in person)
4b) 30 minute Final Interview with Paddy (ideally in person)