Full Stack Engineer, Frontend-Focused

September 30, 2026

Remote

Senior

Utrecht

Worth knowing

English is required

Description

The company designs smart, affordable heat pumps that help homes move away from gas, building the hardware, software and services itself. It is looking for a frontend-focused Full Stack Engineer to improve the customer-facing web application across the journey from first visit and heat-pump advice to quotation, planning and installation. The role is mostly in a TypeScript frontend (Next.js Pages Router, React 18) with focused Django backend changes, taking customer-facing work from idea to production.

Responsibilities

Build, test and deploy customer-facing features in Next.js and React, with Django and API changes where needed
Turn customer needs and designs into clear, responsive and accessible interfaces
Build the flows that guide customers from first interest to advice, quote, order, planning and installation
Keep improving conversion, speed and usability based on data and customer feedback
Improve the flows customers use after installation, from questions and service requests to documents and updates
Connect the web application with the workflows used by sales, planning, installation and service teams
Remove manual work and friction for customers and colleagues alike
Improve frontend architecture, reusable components, performance, accessibility and SEO
Improve automated frontend testing, CI/CD, monitoring and safe release practices
Work with the Backend Developer to shape clear APIs and interfaces between web application, apps and external systems
Turn implicit knowledge into clear documentation and repeatable engineering practices
Review code and share knowledge by default
Use AI tools to support design, coding, testing, reviews and documentation
Help the team improve its AI workflows, shared context and quality checks
Try new tools, keep what works and share what you learn
Hold AI-assisted code to the same standards as any other production code
Work with marketing, sales, planning, installation, service and product development on customer and operational issues

Requirements

Solid hands-on experience building and shipping production web applications, with most depth on the frontend
Strong TypeScript and React skills plus experience with Next.js, Pages Router familiarity useful
Strong HTML and CSS fundamentals with a good eye for responsive design and accessibility
Experience building customer-facing flows such as onboarding, configurators, quotes, checkout or self-service portals
Track record of taking functionality from design through implementation, testing and deployment to real-world use
Comfortable working with REST APIs and making focused changes in Python/Django, deep backend not required
Good understanding of web performance, SEO, automated testing, CI/CD and observability
Uses AI coding tools in practice and understands both their value and their limits
A feel for user experience and a knack for making complex information simple
Experience with design systems, analytics or experimentation, e-commerce, CRM or planning integrations, energy or installation sector useful but not essential

Conditions

A role with direct impact on the customer journey that helps homeowners move away from gas
A clear frontend focus, with enough Django scope to take features end to end
Room to improve how AI tools are used across the software team
27 vacation days and 8% holiday allowance
Stock Appreciation Rights programme to share in the company's growth
An ambitious, collaborative team and real responsibility from day one
Daily lunch at the office
A laptop, access to the AI tools used by the team and everything else needed
Regular team activities, including an annual Beach Day and Winter Trip
Plenty of room to grow, develop and make a lasting impact

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