Product Engineer, UK in London

Partly is connecting the world's parts by building the AI infrastructure layer for the global repair industry, starting with the $2tn automotive market. Our frontier model, Interpreter, is the world's first AI purpose-built to understand vehicle damage and the parts needed to fix it. Thousands of businesses across the global repair supply chain already rely on it.

This is a product-builder role, not a ticket-taking one. You own a product surface end to end: you talk to the customer, form the idea, build it, ship it, measure it, and decide what happens next. The same person who understands the repairer writes the code. There is no handoff for product quality to leak through.

You'll build at the center of a multi-trillion-dollar industry that still runs on phone calls, spreadsheets, and tribal knowledge. Replacement parts is one of the largest physical markets on earth and one of the least digitized, and there is no established playbook to copy. Partly is creating the category.

Our moat is Interpreter, a domain-specific AI model that understands parts, vehicles, and the messy real-world relationships between them in ways general-purpose models cannot. It is what lets software finally make sense of a physical, offline industry, and it is the engine underneath everything you build.

And what you build is changing shape. We are not bolting AI onto old screens. We are creating genuinely new agentic experiences for a broad spectrum of users, from estimators and parts managers to accountants and suppliers, where people express intent and supervise outcomes while agents handle the mechanical work. Designing how that trust is earned, surface by surface, while each one still delivers value today, is the heart of the role.

You'll work at an inflection point in how software itself gets built. AI-assisted development has collapsed the distance between an idea and a working version of it. The builders we want already work this way: they prototype in an afternoon, put it in front of real customers within days, and read the signal themselves. We want someone who works like that now, or is visibly building toward it.

What will you do

• Build, not just specify. Prototype new product iterations yourself using AI-assisted and LLM-assisted tooling, fast, disposable, real.
• Stay close to customers. Spend time where the work happens. Understand what estimators, parts managers, and others actually do, where they lose time, and what better would feel like.
• Reconcile signal. Combine what you see with what the data says, and reconcile the two when they disagree.
• Own the outcome. Steer by your surface's metrics; adoption and value delivered are yours.
• Make the trade-off. Weigh product impact against engineering effort in the same breath, and find the cheaper path to the same outcome.
• Build the agentic experience. Move your surface from manual operation toward supervised delegation.
• Hold the craft. The surface feels fast, clear, and considered.
• Raise the bar. Pair with SW Engineers on the harder systems work behind your surface.

Your skills

• You ship end to end: a track record of taking features from idea to production, code included, with clear accountability for whether they worked.
• Genuine customer obsession: a real habit of spending time with users in their work context.
• Product taste and craft: experiences that feel effortless to time-pressured, non-technical users.
• A point of view on agentic product design: how an experience moves from manual operation to supervised delegation.
• You build rapid prototypes yourself, with AI-assisted tools as a first instinct for testing an idea.
• Solid full-stack engineering with a frontend lean.
• Trade-off fluency: you weigh product impact against engineering effort.
• Strong analytical instinct: you define the metric, build the view, read it, and act.
• You operate well in ambiguity and autonomy.

Strong signals we look for

• Shipped AI-assisted or agent-driven features in production.
• Built for a multi-persona, operational, or workflow-heavy B2B product.
• Founder background, or early employee at a startup that scaled materially.
• You've killed or radically changed something you personally believed in, and can explain why.

Bonus

• Domain knowledge in automotive, the parts aftermarket, repair, or insurance claims.
• Marketplace or network experience, from the demand or supply side.
• Rust, or genuine eagerness to learn it.

Benefits

• Competitive base salary + equity.
• Annual global offsite in New Zealand.
• Parental leave: Primary caregivers receive 3 months of fully paid parental leave.
• Team lunches: Lunch provided daily (Monday to Friday) in the office.
• Flexible working hours: We have flexible working hours and default to working from the office.
• Season openers & events: We host regular events, including quarterly "season openers" for our UK/EU team.
• Healthy body, healthy mind: Every team member gets a £750 annual wellness allowance.