Product Engineer (Flutter)

Build products that make installations easier

What should we build next, and will it actually make life easier for the people using it? As a Product Engineer at Done.green, you’ll help answer those questions and turn the answers into working features.

Done.green builds technology that makes sustainable energy installations easier, including EV chargers and home batteries. Our platform is serving customers from brands such as Tesla, Volvo and Charge Amps in Sweden, and we’re expanding into more countries. At the heart of our operations is our Flutter app, used by both customers and installers to manage installations.

We’re looking for an engineer with a strong product sense and technical foundation who enjoys understanding people & business and building products with AI agents. You’ll work across our stack, with the Flutter app as your main focus and area of ownership. You might be a recent graduate with projects to show, or have a few years of experience as an engineer.

Your role

You’ll take features from the first conversation with a user through to release and follow-up. That means you’ll:

• Talk directly with customers and installers. Work alongside our operations team to understand where we can help users and what would make their experience easier.

• Find the problem behind the feature request.

• Build and ship across the stack. Use AI agents inside our software factory to deliver complete features, from the app experience to backend logic and internal tools. Apply your technical judgment to guide the work, review the results and make sure the pieces work together.

• Own the app experience. Make our Flutter app clearer and easier to use for both customers and installers, while making changes elsewhere in the platform when that’s what solving the problem requires.

• Improve the factory. Inspect agent threads, evaluate new models & work with our engineering lead to improve our software factory.

• Think beyond the next release. Connect product decisions to our business goals and longer-term strategy as we grow across markets.

You’ll join a tight development team and work closely with Alek Åström, co-founder of Done, Frederik, our VP of Engineering, and our operations team, who speak with customers and installers every day.

Building with our software factory

We’re investing heavily in an internal software factory, currently built around T3 Code and Paperclip. Our aim is to let agents handle more of the repetitive development work, giving us more time to understand problems and design better solutions.

As writing code becomes faster, deciding what to build becomes even more important. Your contribution will be to define useful features, care about the details of the user experience and make sound technical and product decisions. You’ll need enough technical depth to understand, question and improve what the agents build across the stack.

You’ll also help us improve how we work with the Software Factory, alongside Frederik, who leads its development.

We think you’ll thrive if you

• Have a strong foundation in software development and enjoy working across the stack to solve a problem.

• Have hands-on experience building mobile apps, through work, studies or your own projects. We use Flutter, but you don’t need to be a Flutter specialist.

• Are curious about agentic AI development and want to get good at directing agents, evaluating their output and understanding the systems they work in.

• Enjoy talking to users, asking follow-up questions and understanding their day-to-day problems.

• Care about UX and can turn a messy workflow into something clear and easy to use.

• Think creatively about user value while considering what makes sense for the business over time.

This is a mid-level role but we are also open to junior engineers. Show us something you’ve built and how you thought about the people using it.

Our stack

• App: Flutter and Dart for iOS, Android and web across mobile and desktop.

• Backend: Firebase / Google Cloud, Firestore and TypeScript + Effect + Node.js Cloud Functions.

• Backoffice: React with Tanstack and MaterialUI

• Software Factory: T3 Code, Paperclip, CodeRabbit, Blacksmith with an evolving agentic development workflow.

The app is your primary product responsibility, and you’ll use the whole stack to deliver the right solution.

What you’ll get

• Ownership of features and direct contact with the people using them.

• Close collaboration with the founders, experienced engineers and operations.

• The chance to help shape both our product and how we build software.

• Stock options as part of the compensation

Apply

Tell us briefly why this role appeals to you and show us something you’ve built.

What problem were you trying to solve, what did you choose to build, and why? We’d love to hear what you learned from the people using it and, if you used AI agents, how you guided and checked their work.