Founding Engineer (£240k+ ) in London

What we are building? The last major technological shift - the rise of the consumer internet - created LinkedIn as the networked winner in recruitment. The next great shift is here. AI is transforming how people and companies connect and it will redefine the global labor market. At Jack & Jill, we are building the company that leads this transformation. We are 9 months old, have released two agentic products (Jack and Jill), have built a brilliant team of Europe’s best engineers, operators and ex-founders, are run rating over £1m revenue and have raised $20M, led by tier-1 VC Creandum. In the coming years, every knowledge worker will have an AI agent managing their career, and every company will have an AI agent helping them hire. By connecting those agents, we are building a new infrastructure for the future of the labour market itself. If that vision excites you, come help us build it.

Meet Jack & Jill. We are not putting a thin AI layer on broken processes. We are rebuilding from first principles with two dedicated agents who work for their users:

• Jack, for candidates: An always-on career co-pilot. Jack starts with a deep conversation to understand who you are and what you really want. He provides market insights, coaching, and companionship.
• Jill, for companies: A true AI talent partner. Jill goes far beyond a job description to deeply understand your company, your culture, and the real context behind a role. She sources candidates, reviews inbound applicants, conducts first-pass screening calls, and acts as a strategic thought partner.

Jack & Jill will not just disrupt the existing recruitment software market, but also the 10x bigger recruitment services market. We are moving at breakneck speed. We have already built two remarkable products, have 100,000+ candidates using Jack, hundreds of paying customers signed up to Jill and built a spectacular early team. The technology is ready and 10x better than the status quo – we need to build and execute at a relentless speed to build on this early momentum and bring it to the world as fast as we can.

Who are we looking for? We are looking for Founding Engineers to help us build Jack & Jill into the default way people find jobs!

You’ll be a great fit if:

• You’re smart. We are building at pace in an ambiguous, changing environment. We believe that general intelligence correlates highly with performance, particularly in such a context.
• You’re product-focused. You want to make a real difference in how millions of people spend most of their lives! We are building at the bleeding edge of AI, but we are not academics. Regardless of whether it’s by using the latest AI models or by simply talking to a customer; it’s the impact that matters to you, and you’re able to think about the customer, the product and the technology simultaneously.
• You’re an ambitious overachiever. You’ll have shown your ambition and excellence in your life. Whether that’s academically, professionally, in a sporting context, or in whatever else you’ve done. We want people that hold themselves to a high bar and are exceptional.
• You want to move fast. We are looking for people who want to move fast. We are determined to become the default way people find jobs and we won’t get there by moving slowly. That means the hours may be long and we’ll have to make smart trade-offs, but we’ll change the world whilst doing it!
• You’re high agency. We are looking for people to take ownership, who don’t need to be told what to do, but like being given hard, complex problems and finding creative solutions.
• You’re a good team player. We need to be excellent individually, but a small team of exceptional people is so much more than the sum of its parts. We are going to be spending a lot of time together and we have no space on the team for brilliant jerks.

Our team is founded by two experienced serial founders: Matt (CEO) - previous company grew to a $600m valuation in 3 years before exiting to Deel; Saaras (CTO) went 0→ $3m ARR in a year as founder/CTO YC AI sales startup Kular.ai. We are a 15-person, founder-heavy team (10 ex-founders).

Our tech Stack: Next.js + Typescript, Python (FastAPI), PostgreSQL (But we are stack agnostic – we believe the best engineers can pick up any tech stack...)

And there are also the perks.... We are building a high-performance environment. You’ll work hard, and we want to clear your plate to make sure that you have everything you need to be able to perform at your very best!

Total Compensation for this role of £240k + (we let you choose your cash : equity split). Private health insurance with Bupa, Uber home if you’re working late, Deliveroo dinners in the office, fortnightly home clean, brand new MacBook.