Junior Software Engineer - Functional Programming

About Klarna

Klarna was founded in Stockholm, Sweden in 2005. Since then we've changed the banking industry forever. And now we're creating the world's smoothest shopping experience. We serve over 90 million consumers worldwide, and partner with 250,000 merchants – with a new merchant joining us every 8 minutes. Including some of the world's leading brands, such as H&M, ASOS, IKEA, Adidas, Samsung and Lufthansa. Our offices are spread over 17 different markets, hosted by 5000+ employees from 100+ nationalities.

Engineering at Klarna is an inspired, customer focused community, dedicated to crafting solutions that redefine our industry. Klarna’s software engineers develop the next-generation products that change how our consumers and merchants interact with each other. Our products handle our customers' money and information at massive scale, and extend well beyond online payments.

Our engineers make some of the most significant decisions for the company and we are looking for bold, open and curious developers. As a Klarnaut, you’ll be inspired to contribute to the growth of Europe’s most highly valued fintech and your work will reach millions of users. We are looking to hire great people, who are passionate about using their talents to generate success.


We are currently looking for Junior Engineers to be a part of our ACH-BACS Payment Networks Team. This team is responsible for direct debit payments in the US and the UK markets, with millions of dollars and pounds flowing through their systems every month! The team is looking for someone interested in functional programming (think map / filter / reduce). If you're someone who have played around with, read about, or enjoyed a university or online course in Scala, Erlang, Lisp or Haskell, this role is a great way to get some practical experience together with a team that enjoys teaching and learning together!

This position is based out of our Stockholm office.

As a Junior Software Engineer at Klarna you will:

  • Work on a specific problem space critical to Klarna’s success
  • Develop as a professional in an entrepreneurial organization that provides opportunity to work with your areas of interest
  • Use state of the art technology to solve real problems for our customers at a massive scale
  • Design, develop, test, deploy, maintain and improve, you own the full life-cycle of your code - you write it, you own it!
  • Work in small autonomous teams while using the benefits of Continuous Integration and Continuous Deployment

What we expect from you:

  • Interest in functional programming 
  • Strong problem solving skills
  • Some experience with one or more general purpose programming languages like Java, JavaScript, Python, etc. (does not have to be professional experience)
  • Interest and ability to learn new languages and technologies
  • Fluency in written and spoken English
Would you like to be a part of the Klarna ecosystem with 2 million transactions a day and contribute to our goal of creating and delivering the smoothest payment solutions around the globe? 


Unfortunately we do not offer relocation support for these roles but we would be happy to provide visa support when necessary.

Klarna is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees and candidates. Please refrain from including your picture and age with your application.