Senior Product Designer (UX​/UI) - De Warmte

Location: The Hague

This job is with Rubio Impact Ventures, an inclusive employer and a member of my Gwork – the largest global platform for the LGBTQ+ business community. Please do not contact the recruiter directly.

Help shape the future of sustainable heating  At DeWarmte, we're making sustainable heating accessible for everyone. Our mission is simple: help households get off gas with smart, affordable heat pumps. To make that happen, we're not only building great hardware, we're also creating digital products that make the customer experience effortless from purchase to installation and beyond.

We're growing fast, which means you'll have the opportunity to make a real impact. We're looking for a Senior Product Designer who takes ownership, loves solving complex problems, and wants to help shape the future of our digital products.
Your impact  As our Senior Product Designer, you'll work across a growing portfolio of digital products, including our customer portal, customer app, internal tools, and more. Together, these products support the entire lifecycle of a DeWarmte heat pump: from purchase and installation to daily use and system management.

You'll define intuitive, industry-leading user experiences based on customer insights, while helping build a consistent visual language across all our digital products. You'll work closely with Product, Engineering, and other stakeholders to create products that customers, installers, and partners use every day.

As a scale-up, you'll also have plenty of room to improve the way we work, introduce new ideas, and help raise the bar for design across the company.
What you'll do    Own the UX and UI design across multiple digital products

Translate customer and business needs into intuitive user experiences

Create user journeys, user flows, wireframes, prototypes, and polished interfaces

Design high-quality user interfaces in Figma

Collaborate closely with Product Owners and Developers throughout the product lifecycle

Validate concepts through user research and usability testing where appropriate

Maintain and continuously improve our design system

Use modern AI tools to accelerate research, ideation, prototyping, content creation, and design workflows

Help establish design best practices across the company

What we're looking for  You'll thrive in this role if you:
Have 5+ years of professional product design experience (including 5+ years of UI and at least 3 years of UX design)

Have a strong portfolio showcasing end-to-end product design work

Have experience building and maintaining design systems

Are an expert in Figma

Already use AI tools as part of your daily design workflow

Are comfortable conducting independent user research

Are comfortable working with multidisciplinary teams, with an emphasis on translating technical requirements to UX/UI design

Can translate technical requirements into intuitive user experiences

Work proactively and independently while collaborating effectively with multidisciplinary teams

Are fluent in English

Are available full-time

Can work from our offices in The Hague or Utrecht at least 3 days per week

Nice to have     Dutch language skills

German language skills

Experience designing consumer mobile applications

Experience working in a fast-growing startup or scale-up

What we offer    A monthly gross salary between €4.000 and €5.000, based on full-time.

27 vacation days plus 8% holiday allowance

Participation in our SAR (Stock Appreciation Rights) programme

Plenty of ownership and responsibility from day one

The opportunity to shape products that directly contribute to the energy transition

A talented, ambitious, and highly collaborative team

A healthy daily lunch at the office

Laptop and everything you need to do your best work

Regular team events, company drinks, our annual beach day, and winter sports trip

Lots of room to grow, develop yourself, and make a lasting impact

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