Product Builder

HappyClient; Oost-Vlaanderen; Hybrid; EUR 60,000 - 90,000; Full time

Job summary

HappyClient in Ghent is hiring a Product Builder to own the UI, frontend, and the client experience end-to-end. You’ll work directly with marketers at large companies to ship value through the user interface and the AI-enabled workflow powering our video delivery.

You will sit in client calls, shape the outcome, and ensure the frontend delivers tangible value. The role blends product thinking with hands-on UI work, from design details to implementation.

Responsibilities

• Own the client experience end to end, no handoffs
• Ship UI and frontend our clients actually feel
• Sit in client calls, not just standups
• Let AI agents do the typing, you steer the value
• Junior or senior, mindset beats resume

Job description

Engineering 1.0
Builder 2.0 .
Wanna switch?

We’re hiring one builder. Not the kind that hides behind the stack. The kind that owns the client experience - the UI, the front, the whole story our clients see - and wakes up asking one question: how do I create value for our clients?

The job changed. A lot of teams are pretending it didn't.

Pick a stack, write code.

• Code by hand all day
• Deep in the backend, far from clients
• Tickets, sprints, narrow scope
• UI is someone else's job
• Success = code merged
• Engineering behind a wall

Builder 2.0

Own the client, ship the value.

• Code is generated, you shape it
• In client calls, owning the outcome
• Systems thinking, full ownership
• The UI and the front story are yours
• Engineering is the easy part

1 role, 1 mission

The role

Product Builder

+ Client ownership

You own what our clients see and touch: the UI, the frontend, the experience around every video we deliver. Our clients are marketers at bigger companies - your job is making them successful. AI agents do the heavy lifting; you make it land as value.

UI / Frontend TypeScript React Agents Client calls

• Own the client experience end to end, no handoffs
• Ship UI and frontend our clients actually feel
• Sit in client calls, not just standups
• Let AI agents do the typing, you steer the value
• Junior or senior, mindset beats resume

Engineering is the floor, not the point. The question we hire for: how do I help this company succeed and create value for its clients? If that question already lives in your head, apply.

The honest filter

Who this is for. And who it absolutely is not.

This is you

• You wake up thinking about the client. Our clients are marketers at bigger companies. Your first question: what makes them successful this week?
• You sweat the front. UI, flow, copy, detail. You care how it feels, not just that it works.
• You think in systems, not tickets. When something breaks twice, you fix the system.
• You go where the value is. If a client call moves the company more than a sprint, you take the call.
• You want a seat at the table. Product, design, sales, client calls. All of it.

This is not you

• You want to be left alone with a Jira board.
• You see the UI as someone else's problem.
• You'd rather perfect the model than talk to a client.
• You want a senior title to coast on.
• You want a remote-only role with zero office days.
• You live in Belgium. The role is hybrid from our Ghent office.
• Dutch is a strong plus. Our clients and our team use it every day.

Quick answers

The things you would have asked. Saved you a DM.