Vacant job

💙 Sellpy’s vision is to empower everyone to live circularly. We believe that every item deserves a second life, and we see huge financial, social and environmental value in making sure this happens. Join us in building technology that drives real change – one line of code at a time.

Fullstack Engineer

At Sellpy, we love elegant code and we hope you do too. Your work will be at the core of how millions of people shop pre-loved items, making circular consumption the new normal. You’ll design and build features across the stack, continuously improve our architecture, and help us scale a product that matters.

We’re looking for someone who thrives in a fast-moving product environment, who loves solving challenges with simplicity, and who’s eager to grow by experimenting, learning, and pushing boundaries.

Here, clean code, ownership and collaboration aren’t just buzzwords - they’re the foundation for how we work.

In short, you will

• Build user-centric, next-generation web applications.
• Work with JavaScript, React/React Native & Node across the stack.
• Take ownership of features from idea to release and beyond.
• Ensure scalability, maintainability and simplicity in everything you build.
• Continuously improve Sellpy’s products and architecture.

Requirements

• B.S. or M.S. in Computer Science (or related), or equivalent proven experience.
• 3+ years of professional software engineering experience.
• Strong knowledge of JavaScript.
• Experience from a fast-paced product environment.
• Fluency in written and spoken English.

We think you’re someone who’s curious, open-minded and enjoys learning new things. You like collaborating with others, sharing ideas and finding simple solutions to complex problems. With a positive mindset and a drive to make a difference, you bring both energy and creativity into your work.

We’d be impressed if you have

• Experience with React, React Native, Node.js, Web Components, logging & monitoring.
• Worked in a scaling, product-focused startup.
• Hands-on experience with continuous integration & deployment.
• Knowledge of AWS and Git.

Our Interview Process 🤝

We want to get to know you, your way of thinking, and how we would work together.

• Culture Interview (45 min): A video call to get to know each other. We talk about your background, your drive, and why you are interested in Sellpy.
• Technical Interview (1 hour): A deep dive into your technical knowledge and how you approach problem-solving.
• Case Interview (2 hours): You will receive a real-world case assignment to prepare in advance. We then invite you to our office at Medborgarplatsen where you will present your solution and we will discuss your reasoning in depth.
• Founder Interview (30 min): A final chat with one of our founders to discuss the company vision and your potential journey with us.

You get to

• Be part of a tech-minded company that's driving the change towards a sustainable lifestyle. In return, you will get direction, energy, and work on meaningful challenges daily.
• Benefit from hybrid work from our offices at Medborgarplatsen, Rosersberg, and from home.
• Work with highly skilled and motivated colleagues.
• Gain new skills with unlimited access to a learning platform.
• Grow professionally during monthly level-up days.
• Make use of prepaid vacation.
• Enjoy Sellpy credits and staff discounts at Sellpy and the H&M brands (Arket, COS, Other Stories, Weekday and more).
• Save up with a monthly pension plan.
• Engagement in Sellpy’s social traditions with game nights, interactive planning days, guest speakers and other activities.

Location: You’re welcome to work from our new office at Medborgarplatsen in Stockholm and from home. Ideally, we’d love to see you in the office regularly, as it helps create a positive and productive environment.

Form of employment: Full-time

Start: As agreed upon

👉 Apply now and turn clean code into real impact for people and the planet.