Junior Software Engineer at Sellpy

We love elegant code, and we hope you do too. We look forward to seeing your craft grow and make a difference to our rapidly expanding platform.

Sellpy's vision is to empower everyone to live circularly. We believe that every item deserves a second life, and we see huge value in making sure this happens. We look for those who share this vision and have the grit to tackle the challenges of building a circular future.

Junior Software Engineer at Sellpy

Sellpy's catalogue holds 10 million one-of-a-kind items — and our systems must handle every single one in real-time. As a Junior Software Engineer, you'll step into a place where your code ships to production early, your ideas are heard from day one, and the problems you solve have genuine environmental impact.

We're coding for a circular future in an environment where discussions are encouraged, every voice contributes to our architecture, and curiosity and craft are valued equally — from day one.

In short, you will

• Build and ship features across the full stack, from frontend interfaces to backend services.

• Work with JavaScript, React/React Native and Node.js.

• Take end-to-end ownership of features — from design through deployment.

• Grow rapidly with the support of experienced teammates and direct feedback loops.

• Contribute to keeping Sellpy's architecture clean, maintainable and scalable.

• Bring fresh perspectives that push our engineering culture forward.

Requirements

• Currently pursuing or recently completed a B.S. or M.S. in Computer Science or a related technical field.

• Graduating in summer 2026, or 2027.

• Solid understanding of JavaScript or another modern programming language.

• Genuine curiosity, drive to learn, and an action-oriented attitude.

We’d be impressed if you have

• Familiarity with React, Node.js, or similar modern frameworks.

• Experience from side projects, internships, or open source contributions.

• Exposure to CI/CD pipelines and version control with Git.

• A passion for the circular economy or sustainable tech.

You get to

• Be part of a tech-minded company driving the change towards a sustainable lifestyle. In return, you'll get direction, energy, and meaningful challenges from day one.

• Enjoy a vibrant office culture at Medborgarplatsen, balanced with hands-on experience at our production sites

• Work with highly skilled and motivated colleagues who invest in your growth.

• Gain new skills with unlimited access to a learning platform.

• 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.

• Engage in Sellpy’s social traditions with game nights, interactive planning days, guest speakers and other activities.

Location

On-site collaboration at our core, supported by a flexible hybrid setup on set days. This role is based at our Medborgarplatsen office.

Hybrid work

We value being together. After an on-site onboarding, we aim for a balanced office presence, with flexibility on set days.

Form of employment: Full-time

Start: As agreed upon

How we use AI

We use AI as part of our recruitment process, but all hiring decisions are made by humans.