Fullstack Javascript Engineer i Stockholm

Engineering at Klarna is an inspired, customer focused community, dedicated to crafting solutions that redefine our industry. Working in small, highly collaborative Agile teams, you and your team will have a clear mission and ownership of an important outcome that supports Klarna and our customers. At Klarna we optimise for quality, flow, fast feedback, focussing on end-to-end ownership, continuous improvement, testing, monitoring and experimentation. We aim for teams that are inclusive, helpful, and have a strong sense of ownership for the things they build.

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.

Want to be part of the change? We're expanding several of our engineering teams, including; teams working on our core checkout product, payment services, fraud prevention, or improving our billing service and shipping credentials to name a few.

What you’ll get to do;

• Klarna’s Authentication team is working on some of the most important challenges in the payments industry


• Every payment company needs to align to PSD2 requirements in the EU. We are building a unique solution for this problem that would serve millions of customers around the world. We are still in the beginning stages of this solution and looking for people who can join us on this journey.


• We are also responsible for identifying and authenticating millions of active users every month. We work with authentication methods in several countries that involves learning new methods and keeping us updated about the latest happenings in the industry.


• We work in small highly collaborative Agile teams. You and your team will have a clear mission and ownership of an important outcome that supports Klarna and our customers. At Klarna we optimise for quality, flow, fast feedback and time to market. To do this we focus on end-to-end ownership, continuous improvement, testing, monitoring and experimentation. We aim for teams that are inclusive, helpful, and have a strong sense of ownership for the things they build.

Some of the technologies you’ll get to work with;

• Identity and access management
• Web and app security experience
• Authentication & Authorization
• Device linking and signatures
• Secure user sign in, sign up and access control
• Web experience
• Javascript / Typescript
• React/React Native
• Redux
• Node.js
• Express.js
• Docker
• AWS

Culture - You'll have an opportunity to work with people from 90+ different countries in our English speaking offices in Stockholm/Berlin city centre.

Learning - We have a learning and development focused environment with an emphasis on knowledge sharing, training, and regular internal technical talks.

Compensation - You’ll receive an attractive salary, pension, and insurance plans, plus we offer all of our employees an opportunity to invest in a RSU program and own a stake of the company. You’ll also receive 30 days annual leave and since we recognise that life is about more than work, we also offer benefits for gym memberships, marathons, and all sorts of activities that promote physical health. We also have generous parental leave (for men and women).

Relocation - We can offer relocation support to Stockholm. 

We also believe in making contributions back to the open source community. You can find some of our work at .

How to apply: please send us your CV or LinkedIn profile in English.

With our diversity of skills, perspectives and backgrounds, we can create, innovate, and disrupt like no other. Diversity is part of who we are, and essential to our success.

Here, every voice matters. We’re organized into hundreds of small teams, each run like a start-up, focused on their own problem-space.

Successes and failures are won together at Klarna in a melting pot of teams. Win, lose, and learn, we’re on this path together.

If you love what you do, you should love where you do it. We appreciate that everyone’s different and has their own preferences of where and how to work. We genuinely believe in the power of regular face-to-face interactions in building close connections with our teams, but we also strongly believe people can work effectively remotely. This means that combining both is the key to success. 

At Klarna, You can choose between working from the office, remotely within your employment country, or even outside of it for up to 20 working days per year. Flex it up!  

Additionally, we’re providing each Klarnaut with a contribution and equipment to improve this flexible work life. Use it to glow up that personal home office space, or upgrade those work accessories.

We take a very Swedish approach to benefits. Support for parents, health and wellness perks—we’ve got you covered.

Since 2005 Klarna has been on a mission to revolutionize the retail banking industry. With over 90 million global active users and 2 million transactions per day, Klarna is meeting the changing demands of consumers by helping them save time and money while better managing their cashflow and making informed decisions. Over 250,000 global retail partners, including H&M, Saks, Sephora, Macys, IKEA, Expedia Group, and Nike have integrated Klarna's innovative technology to deliver a seamless shopping experience online and in-store. With over 5,000 employees, Klarna is active in 20 markets and is one of the most highly-valued private fintechs globally, with a valuation of $45.6 billion. For more information, visit

It is our commitment that every qualified person will be evaluated according to skills regardless of age, gender, identity, ethnicity, sexual orientation, disability status or religion. Please refrain from including your picture and age with the application.