Software Engineer - Functional Languages for Financial Platforms

Our backend platforms are built using functional languages on the Erlang and Java runtimes, deployed and managed with tools such as AWS, Docker, and Kubernetes.

We're expanding several of our financial platform engineering teams; scaling up the backend of Klarna Checkout and ensuring our highly available purchase accepting system can handle ever increasing traffic volumes. We're always adding functionality into our payment processing systems and also building a modern banking platform.

What you will do:

- Working with the entire lifecycle of a service; from writing application code and tests to deploying, monitoring and troubleshooting.
- Working with large scale, high reliability, robust, financial systems.
- Working as a team; we respect and support each other, and practise agile methodologies including TDD, pair and mob programming.
- Deploying code multiple times a day using automated pipelines.
- Learning and succeeding in fields you haven’t worked in before.
- End-to-end ownership, continuous improvement, testing, monitoring and experimentation.

Previous functional programming experience isn’t essential, but you should be open to learning and working with any of the following languages as the choices available may change over time; Erlang, Scala (http4s) primarily and possibly Clojure and Haskell.

Who we are

Klarna is Europe's fastest growing and most exciting financial technologies (FinTech) company valued at over $2.5bn and we’re growing by 40% a year. Here at Klarna we are striving to become the world’s most favourite way to buy. It is a bold objective, but we are well on course to achieving it.

Klarna is already operating in 18 markets and we plan to keep expanding. We serve 60 million consumers, work with 70 000 merchants and process more than a million transactions a day. We have some pretty heavy-weight investors including Visa, Sequoia Capital, Permira and Anders Povlsen.

Unicorns are rare - and we are one of them! Unicorns are tech startups valued at over 1$Bn. Moreover, Klarna is listed 8th on CNBC most ‘disruptive companies in the world’ list for 2016, alongside Uber, AirBnB and coming above companies like Snapchat and Spotify - we are really starting to change the global world of payments.