Senior Product Designer (UX/UI)

DeWarmte; Utrecht; On-site; EUR 45,000 - 56,000; Full time

Benefits offered by this job

SAR programme

Regular team events

Office lunch

Laptop provided

Job summary

DeWarmte is seeking a Senior Product Designer to own UX/UI across a growing portfolio of digital products, including customer portal and apps. You will define intuitive experiences based on customer insights and build a consistent visual language across products, collaborating with Product and Engineering.

As a scale-up you’ll improve processes, shape design culture, and help raise the bar for design. Join a fast-growing team in the energy transition and contribute from day one.

Qualifications

• 5+ years of professional product design experience (UI/UX) required.
• Strong portfolio showing end-to-end product design.
• Experience building and maintaining design systems.
• Expert in Figma and proficient with AI-assisted design.
• Ability to conduct independent user research.
• Proven ability to work with cross-functional teams.
• Fluent in English and able to work on-site in The Hague or Utrecht.
• Full-time availability.

Responsibilities

• Own the UX and UI design across multiple digital products.
• Translate customer and business needs into intuitive experiences.
• Create user journeys, flows, wireframes, prototypes, and polished interfaces.
• Design high-quality interfaces in Figma.
• Collaborate with Product Owners and Developers throughout the lifecycle.
• Validate concepts via user research and usability testing.
• Maintain and improve the design system.
• Leverage AI tools to accelerate design workflows.
• Help establish design best practices across the company.

Skills

5+ years design

Strong portfolio

Design systems

AI tools

User research

Cross-functional teams

Self-motivation

English fluency

Full-time

On-site

Tools

Figma

Job description

Versterk ons team

Senior Product Designer (UX/UI)

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