Backend Developer to Deedster --

Wrknest; Stockholm; Hybrid; EUR 35 000 - 60 000; Full time

Job summary

A Stockholm-based climate-tech company is seeking a skilled back-end developer to join their mobile app team. In this role, you will develop API endpoints and contribute to systems that help reduce carbon footprints, all within a hybrid working environment. Strong programming skills, experience with Git, and a passion for climate technology are essential.

Qualifications

• Solid experience in back-end development using programming languages.
• Proficient in Git or similar version control tools.
• Experience implementing unit tests and automated testing workflows.

Responsibilities

• Develop and maintain API endpoints for the mobile application.
• Manage and improve the internal GUI for content and user administration.
• Oversee data infrastructure in collaboration with the data team.

Skills

Back-end development

Git

Unit testing

Curiosity

Job description

About the role:
Deedster is on the lookout for a skilled and motivated back-end developer to join their mobile app team. Based in central Stockholm, Deedster operates with a hybrid model, combining flexibility with in-person collaboration around shared goals. As the main back-end developer, you’ll sit at the heart of their product development – collaborating closely with front-end developers, content creators, data analysts, and customer success managers. You’ll play a key role in maintaining and developing scalable systems that help individuals and organizations lower their carbon footprint.

Your future responsibilities:
You’ll work hands-on with both the internal tools and customer-facing services, contributing to meaningful tech with real-world environmental impact. Among your tasks:

• Develop and maintain API endpoints for the mobile application
• Manage and improve the internal GUI used for content and user administration
• Oversee the data infrastructure in collaboration with the data team

Who we’re looking for:
Deedster values curiosity and a genuine willingness to learn above all. However, to succeed in the role, you should also have solid experience in:

• Back-end development using one or more programming languages
• Git or similar version control tools
• Implementing unit tests and automated testing workflows

Additional experience that would be valuable, but not required:

• Google Cloud Platform or other cloud infrastructure
• Google Firebase authentication and related services
• Cybersecurity and secure application development
• Database architecture and management
• Clojure

Whether you're an experienced engineer or on your way to becoming one, a passion for climate-tech and collaboration across disciplines is essential.

Other information:

• Start: According to agreement.
• Location: Stockholm, Sveavägen 24-26.
• Scope: Full-time, with flexible working arrangements(3 office days/week).

About the company:
Deedster is a Stockholm-based climate-tech company helping individuals and businesses take climate action. Their suite of digital tools includes an employee engagement app, a sustainability API for banks, and an action platform for SMEs. With a gender-balanced and international team, Deedster combines deep tech expertise with a shared mission: to reduce emissions and enable systemic change for a more sustainable world.

About Wrknest:
At Wrknest, we don’t do things the traditional way. We believe in constantly finding new opportunities and challenging outdated recruitment practices. We live in an era of rapid digital transformation where knowledge must be continuously updated. That’s why we look beyond the CV in every recruitment process. Instead, we assess each person’s full potential and offer tailored upskilling. This way, we can quickly match the talent needs of today. Learn more at www.wrknest.se