Founding Operator

About the job

The basics: £55K-£75K base + meaningful founding equity. Hoxton, London. In-office 5 days a week. Travel to customer branches across the UK. PLEASE DO NOT APPLY IF YOU ARE NOT IN THE UK!

This will be the hardest job you've ever had. We're hiring our Founding Operator. The person who sits between our engineering team and our customers and makes sure neither one gets pulled into the wrong things. You'll be CS-trained but you don't want to be an engineer anymore. You can read our codebase, write SQL against the data warehouse, pull your own analytics, and debug a production customer issue down to the line. But the majority of your time, you'll be in front of customers. Onboarding agency staff. Training negotiators. Sitting in branches. Walking MDs through how Letty actually works. The engineering team builds. You make sure customers actually use what they built.

What we're building: Our starting point is selling to real estate agencies, where we're replacing manual workflows with AI employees that handle tenant engagement, landlord outreach, compliance, and maintenance autonomously. Property is one of the most important parts of people's lives, and the experience of buying, selling or renting one is still terrible. Nobody has built the definitive AI agent layer for real estate yet. That's what we're doing.

About us: Backed by Entrepreneurs First and top-tier VCs. Live with agencies across the UK with early US traction. Building AI agents that don't just assist. They do the work. Based in Hoxton, London. In-office 6 days a week.

What you'll do:

• Most days, you're customer-facing. Take new agency customers from signed contract to fully live branch in 7 days or less.
• Sit inside branch offices. Watch negotiators work. Map their daily workflows. Configure Letty to fit.
• Train branch staff (negotiators, managers, MDs) on every Letty workflow they touch. In person. Hands-on.
• Build the training curriculum from scratch. Docs, videos, certification paths, refresher modules.
• Own the adoption metric. Daily active usage per branch is your north star.
• Some days, you're technical. Triage customer issues yourself instead of opening an engineering ticket. SQL queries, log inspection, config changes.
• You handle most of it without pulling engineering in. Pull your own analytics. You don't wait for someone to build you a dashboard.
• Read the codebase well enough to file useful, specific bug reports.
• Stand up internal tooling for the customer team. Scripts, dashboards, automations.
• Every day, you're the bridge. Surface product feedback to engineering with specifics, repro steps, and prioritisation.
• Block engineering from being interrupted by customer questions you should answer.
• Translate between MD-speak and engineer-speak, in both directions.

You'll be a great fit if:

• You have a CS background. Degree or equivalent self-taught depth. You can read Python, FastAPI, TypeScript, SQL. You understand how the systems we run actually work.
• You don't want to be an engineer. You've done the engineering thing. You'd rather solve customer problems than ship features.
• You like being with customers. Branch offices, on the phone, at viewings, in their world.
• You're fluent in SQL. You don't ask the data team for numbers. You write the query, you check the output, you make the call.
• Structurally minded. You can take a messy implementation and turn it into a repeatable playbook by customer #3.
• Teacher's instinct. You can read the room when a 55-year-old branch manager isn't getting it. You break things into steps.
• AI-native. Cursor, Claude, Lovable. You ship docs, internal tools, and training materials 10x faster than people who don't use them.

Bonus points:

• Ex-engineer, ex-founder, or ex-forward-deployed engineer at a B2B SaaS or AI startup.
• Prior customer-facing work on a solutions or implementation team.
• Comfortable on UK rail. You'll be on trains to branches across the country regularly.

This role isn't for you if:

• You actually want to be an engineer (we're hiring engineers separately, this isn't the path).
• You want to onboard customers from behind a screen.
• You think customer-facing work is beneath your skill set.
• You optimise for predictable hours or work-life balance.
• Six days a week (in-office plus customer sites) sounds exhausting rather than energising.

How we work: We work hard. Six days a week, intense. On customer sites when launches are live, sometimes seven days a week. We're rebuilding a $1T+ industry and we don't think that happens on a 9-to-5. We're also having fun. The team is sharp, ambitious, and genuinely enjoys the work. If 'six days a week' sounds exhausting rather than energising, this isn't the role for you.

What we offer:

• £55K-£75K base depending on experience.
• Meaningful founding equity.
• Private health insurance.
• Uber home when you're working late.
• DoorDash dinners in the office.
• Monthly home clean.
• Brand new MacBook.
• Travel covered for customer site visits.

But the real offer is ownership. You define what the operator role is at Letty. You build the playbook. You decide what good looks like. No waiting for permission.

Interview process:

• 15-min screen with our Founder's Associate.
• 20-min screen with the CTO.
• Technical/operator screen with the CEO.
• Day trial in the office.
• Offer.