Founding Product Engineer

My Data Value LIMITED; Greater London; Hybrid; GBP 81,000 - 99,000; Full time

Benefits offered by this job

Hybrid work in London

Salary up to £90k

Equity up to 1%

Job summary

My Data Value LIMITED is seeking a founding product engineer who operates above the code level to shape the system, talk to customers, and direct AI agents to build the right solution. You will own architecture, define data flows, and ensure the single source of truth across integrations with Booking platforms.

You will guide Claude Code and Codex sessions, review AI outputs for design quality, and ship features from customer insights to production in a high-impact, hybrid role based in London.

Qualifications

• Architectural thinking: boundaries, data flow, and good naming.
• Customer-facing design and judgement to translate requests into work items.
• AI-enabled delivery: writing precise briefs for agents and reviewing outputs for design quality.
• Ability to spot and fix root causes beyond surface fixes.
• Shippers simple, effective solutions that solve real problems.

Responsibilities

• Talk to Customers: join calls, identify real problems, decide what to build.
• Own the Architecture: define data flow, single source of truth, and system boundaries.
• Direct the Agents: craft briefs, run multiple AI agent sessions, review outcomes for design.
• Catch What the Agent Missed: detect misalignment, improve guides and checks.
• Ship to Production: deploy features from customer calls to live portfolios.

Skills

Architect

Product-minded

AI-native

Strong foundations

Pragmatic

Hotels/short-term rentals or dynamic &

Tools

Claude Code

Codex

Job description

Up to £90k · Up to 1% equity · Hybrid, 2 days a week in Canary Wharf

Our engineers no longer type most of the code. Claude Code and Codex do. The hard part now is knowing what to build, how it should fit together, and whether what the agent wrote is actually right.

We are looking for a founding product engineer who works at that level: you talk to customers, design the system, and direct AI agents to build it. We do not care which programming language you know.

The Role

You will work at the level above the code: what the customer needs, how the system should be shaped, and what the agents should build next.

• Talk to Customers: Join calls with property managers and revenue managers, find the real problem behind each request, and decide what we should build and what we should not.
• Own the Architecture: Decide where logic lives, how data flows, and which place is the single source of truth for each fact. Keep the system simple as it grows across Booking.com, Airbnb and PMS integrations.
• Direct the Agents: Turn a problem into a clear brief, run several Claude Code and Codex sessions in parallel, and review their output for design, not just passing tests.
• Catch What the Agent Missed: Spot the change that works but is wrong: duplicated logic, a fix in the wrong layer, a patch where the root cause needed fixing. Improve the guides and checks that keep our agents on track.
• Ship to Production: Take features from a customer call to live on real portfolios, then check they do what the customer needed.

The Logistics

• Hybrid: 2 days a week in our Canary Wharf office in London. The office days are mandatory.
• Salary: Up to £90k (depending on experience).
• Equity: Up to 1% in options (4-year vesting).

Who You Are

• Architect — You think in systems: boundaries, data flow, and the design patterns that keep a codebase simple. You can explain why a design is right, not just that it works.
• Product-minded — You enjoy talking to customers and turning a vague complaint into the right change. You care about revenue impact, not what is technically interesting.
• AI-native — You already ship most of your work by directing Claude Code, Codex or similar, often several agents at once. You write precise briefs and can tell when an agent is confidently wrong. If you do not already work this way, this is not the role for you.
• Strong foundations — Any language. You know the fundamentals, such as single source of truth, separation of concerns and good naming, well enough to notice when code you did not write breaks them.
• Pragmatic — You ship the simplest thing that solves the problem well.
• Big bonus — You have worked on hotels, short-term rentals or dynamic pricing before.

Interview Process

• 1. 30 minute non-technical call with the CTO.
• 2. 1 hour live session with the founding team. You walk us through something you shipped with AI agents, design the solution to a real customer problem from our codebase, write the brief you would give Claude Code or Codex, then review an AI-written change and tell us what it got wrong. No take-home.
• 3. Meet both founders in person at our Canary Wharf office.
• 4. Offer.

Why This Role?

• The Right Altitude: You spend your time on design, customers and judgement. The agents do the typing.
• Real Impact: Your work changes live prices and promotions on real customers' Booking.com and Airbnb listings.
• High Equity: 1% is a good chunk for our stage.
• Hard Problems: Booking.com and Airbnb private APIs, PMS integrations, an MCP connector for Claude and ChatGPT, and pricing decisions that move real money.