Kotlin Server-side Developer

About The Job

We are looking for someone that can help with our auction brand Klaravik's migration on the backend and can help adapt the current Klaravik process into the new TBAuctions Kotlin microservice codebase. Ideally you are in the greater Copenhagen region to work with our development teams in our office in Lund.

You will work with a tight-knit development organization locally in Sweden and also internationally in the Netherlands and Poland. We will spend a lot of time on skills development and training to make the transition between platforms as smooth as possible while learning by building new features in the system together

We have created a white-label storefront website to support our major auctioning brands: klaravik.se, troostwijkauctions.com, and vavato.com and we plan to continue the migration for all our other brands to continue with our vision, better together.

In addition to our white-label storefront we have built a modern backend infrastructure to support the continuous growth of our business and the growing volume of items sold and bids made on those items. TBAuctions handles 2.9 million items annually, has 30 million website visits per month, can reach 10 bids per second, and employs over 800 people.

Your main tasks

As a Kotlin Server-side Developer, you will build, optimize, and maintain critical backend services that resonate with our diverse audience of bidders and sellers. You’ll be responsible for migrating Klaravik’s backend processes into our modern Kotlin microservice codebase, collaborating closely with cross-functional teams in Amsterdam, Sweden, and Poland to drive growth. Through a blend of strategic problem-solving and hands-on coding, you’ll help position TBAuctions and its brands as leaders in the online auction industry.

Key Responsibilities

• Design, develop, and maintain Kotlin-based microservices that handle inventory management, auction listings, bids, and payments.
• Lead and support migration efforts for Klaravik’s backend into our new infrastructure.
• Collaborate with local and international teams to ensure high-quality, scalable solutions that meet business and user needs.
  
  

What you bring

As the company wants to build a group that works well together, team chemistry and the desire to develop something great together are central. Of course, you need to be able to code, but it's equally important to be self-driven and enjoy working together towards a common goal.

Skills

• Documented competence with JVM languages (Scala, Java), or server-side Kotlin
• Experience with or the desire to learn functional programming
• Experience with cloud development (Azure, AWS, GCP), preferably with Azure
• Experience working with microservices and/or distributed event-driven architecture
• Proficiency in English (Swedish is not required)
  
  

Other Meriting Skills

• Kotlin development with Ktor and Arrow.
• Queue management (Service bus, RabbitMQ, OpenMQ).
• Databases (Azure SQL, Redis, MongoDB).
  
  
  
  

What We Offer You 🥳

A pleasant workplace in modern premises in central Lund right by the train station. There are also city and regional buses nearby.

• Flexible working hours give you the opportunity to balance your private life and work, no matter where you are in life.
• We have 6 weeks of vacation, wellness contribution, pension solution and health insurance
• A competitive salary
  
  

This is TBAuctions

Nothing of value should be lost

In a world where overconsumption is a threat, TBAuctions finds it important to extend the life of products as long as possible. So, nothing of value should be lost. Our online intelligent auction platform makes this happen. By using data and a smart system we match supply and demand of used industrial products. Together with our auction brands (Troostwijk Auctions, Klaravik, Auksjonen, British Medical Auctions, PS Auction, Vavato and Epic-Auctions) we bring sustainable trade to a higher level. With buyers and sellers all over the world millions of products are auctioned every year.

Auctioning is trendy and the way to buy and sell. We are fascinated by technology, with a love for user-friendliness and the drive to preserve value. Do you share this drive and do you want to work for a company that has the ambition and the firepower to become the largest online auction platform in Europe? Apply for this vacancy!