Are you looking for an internship with a steep learning curve and great responsibilities in a dynamic and passionate software scale-up? 🚀 Then look no further!

Relesys is searching for an ambitious and talented Backend Engineer Intern to join our  incredible Development team in Odense. During your internship you will help build and assure the highest quality of our product: the market's best mobile app platform targeting employee engagement across industries.

We are already working with clients like Joe and the Juice, Reitan, Specsavers, Mercedes-Benz, Gina Tricot, Tiger of Sweden, Matas, Salling Group, COOP, Carlsberg, Tiger of Sweden, etc., which are amazing brands and proof of the quality and reputation of our product, service, and attention to detail that we always provide to our clients. Our clients are not just considered our customers, but we consider them our colleagues with whom we build strong and long-term relationships 🤩

This is an exciting and transformative time to join Relesys, as we have just gone into a strategic partnership with the Private Equity fund, Copilot Capital, where the coming years will bring extensive growth and opportunities along the way. You get a unique opportunity to make a tremendous impact in taking your career, Relesys and our dear clients to the next level over the coming years - as we say it, joining a scale-up at this stage is a rare opportunity that is "once in a lifetime opportunity"

Your key responsibilities

• Take part of the development and support of responsive web application and web portal for content administration
• Assist the development and support of Web APIs and services as well as different integrations with external services
• Collaborate with an amazing team of developers, software testers, and other team members in both Denmark and Lithuania

 Who are you

• You are an organizer with a creative mind who loves structure and is eager to learn and develop
• You have a strong work ethic and an independent workflow
• You have experience with data modelling and querying in SQL databases
• You are excited to work with C#, .NET Framework and .NET Core
• You are studying a degree within IT, Software Engineering, Computer Science, etc.
• You live in or near Odense
• You have impeccable Danish and English skills (both verbally and written) 🇩🇰🇬🇧
  

What do we offer

• "Once in a lifetime" growth opportunity in an aspiring unicorn business that will 5x over the coming 4-5 years backed by the Private Equity fund, Copilot Capital
• Positive, collaborative, and supportive colleagues who wish you to succeed
• Opportunities for professional growth and development as we are growing towards becoming a unicorn business
• Lots of challenges and opportunities, with respect and flexibility for your education
• Targeted feedback and guidance from your mentor to further improve your skills
• Delicious lunch scheme
• Free barista coffee, tea, and a fridge filled with soda ☕️

When and where do you start

• Our talent program is custom-tailored for your internship period. However, we are looking for an intern to start in January 2026
• We will review applications from day one, so apply for the position now by sending your CV through the Apply button 🌟

We can't wait to hear from you!  🤩 

Who are we

Relesys isn't just another SaaS company; we are a dynamic force revolutionizing communication and performance management platforms. Established in 2014, we set out on a mission to bridge the gap between HQ and non-desk workers, fostering a thriving workforce.

What value do we bring? People are the heartbeat of our client's business. When employees are thriving and successful, businesses flourish and retention rates increase. Relesys enables our clients to achieve this through an all-in-one app that streamlines communications, training, and daily operations into their own customized and ever-evolving app📱

With clients such as Salling Group, COOP, Carlsberg, and Vestas - to name just a few - Relesys serves clients in 15 different countries, supporting them in 40 languages with 450,000 licenses across 20,000 stores and users in 100+ countries. We have a strong presence in the Nordics and EMEA, and we continue to increasingly attract clients from across the globe, as we are breaking into new, dynamic markets.

At Relesys, we're shaping the future for frontline workers across various industries: Retail, Hospitality, Production/Manufacturing, and Transportation – while having FUN, as our rule number one! Join us on this thrilling journey as we grow and venture into new horizons.

Our Culture

Building a world-class organization and culture is our highest priority. We believe in the talent of our people and in long-term collaborations where we value an informal yet highly professional culture. We always go 'the extra mile' for our colleagues and clients, but rule number one - Have fun! This rule is always at the forefront of our minds when we come to work, creating an environment that is filled with passion, energy, and inspiration. We are eager to see what exciting contributions you, as our new colleague, will bring, as we believe that each and every individual has a tremendous influence on the whole 🌍