Java developer

The Development Sales team is part of the Technology organization at Tre. Our main task is to develop the systems used in sales to end customers—everything from store solutions to the sales engine for our online shops.

About the role

As a Java developer, you are responsible for developing existing applications and support systems. We code in the latest Java version and use REST for APIs. Other tools and technologies present are Docker, Kubernetes, Git, Jenkins, Spring, and GraphQL. We have a learning and development-focused environment emphasizing knowledge sharing and continuous development. With us, you will have great opportunities to contribute knowledge and insights!

You will look forward to


- work in an agile team where we learn together, as a team and as individuals, to navigate a business in constant change

- working at a company that delivers critical infrastructure where your contribution directly contributes to societal benefit and ensures that important functions run smoothly
- be included in one of Sweden's best workplaces according to Great place to work
- belong to an employer that wants to contribute to women wanting to choose and stay in the technology industry; we are proud partners of Women in Tech and Tjejer Kodar

About you

To thrive in the role, we are looking for you who are committed and take the initiative to find your ways and processes to work more efficiently. You solve problems by rethinking and taking input from others.

You need to have several years of experience in Java, both older and the latest versions, and in developing in JavaScript. Furthermore, you must have knowledge of SOAP/REST and web technologies like HTML, CSS, and jQuery.
Welcome with your application!

We are accepting applications via this job ad, and interviews are ongoing. A personal letter is not required, but we would like you to answer the questions we ask in connection with your application. We use tests to ensure objective assessments in the selection of candidates. The position may be filled before the application deadline. Background checks are carried out on the final candidate.



We are driven by constantly trying to improve things in new and different ways. Of course, we are at the forefront of developing future networks. ​​

We see ourselves as a crucial part of Sweden's social structure because we know that reliable connectivity is a necessary foundation stone in today's digital world. That's why we see it as our job to keep our mobile network up and running year-round, 24/7, to ensure you can always count on being connected when you need it most. ​​

Tre was born as a challenger and is an organization in constant motion. We strive to be at the forefront of everything we do. We are convinced that the people at Tre are decisive for our development. ​​

No matter how you start your journey at Tre, there are endless opportunities to grow and develop with us.




WE THINK LIKE CHALLENGERS - In a constantly changing world, we stay curious and open minded. Born with a challenger mindset, we love pushing boundaries.





WE WORK LIKE CHAMPIONS - As true champions, we always do our best. We take ownership, set clear goals and stay focused. Together we´re on a winning streak.





WE ACT LIKE BUDDIES - Free to be ourselves, we treat each other with respect. Together we make a friendly bunch, born, and one tough force.