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Lead Engineer - Javascript

KlarnaStockholm, SwedenOnsite
We are on a mission
to liberate humanity from all the meaningless time spent managing their purchases and finances, so they can do more of what they love. Klarna was founded on a bold belief: that people are capable of achieving the extraordinary, even when faced with the seemingly impossible. Our journey has been one of continuous learning, facing immense challenges head-on, dedicating countless hours of hard work, and never wavering in our commitment or resilience - and now we are looking for individuals to join us on our journey and contribute to our mission.

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.This is an excellent opportunity for experienced Lead Engineers to join our office in the heart of Stockholm, Sweden.

What you will get to do:


  • Working as a Lead Engineer on our highest priority focus areas - leading and driving engineering efforts
  • Be a hands-on technical leader for the members of your own team and other engineers around you
  • Envision, drive and implement ambitious software projects that disrupt the financial industry
  • Make architectural decisions affecting multiple teams in order to create highly available products used by millions of customers
  • Question and improve the engineering practices around you to increase the development speed and quality of the products that we build
  • Be the thought leader in engineering - inspire more junior engineers, build communities of practice, shape the engineering culture
  • Create impact with your knowledge not only via direct contributions, but also through speaking at events and holding workshops, both internal and external.

You should have:


  • BS degree in Computer Science or a related technical field, or equivalent practical experience
  • Strong coding ability in Javascript
  • Experience with API and product development
  • Passion for writing clean and testable code
  • Successfully applied and are enthusiastic about Agile/XP practices (Pairing, TDD/BDD, Continuous Integration, Continuous Delivery)
  • Willingness to learn new technologies and move between different tech stacks
  • Team mindset to lift people around you through example of exemplary delivery

Some of the technologies we work with:


  • Must have:
  • Fullstack JavaScript & TypeScript with focus on frontend
  • React
  • Nice to have:
  • Web Components
  • Cloud Operations in AWS
  • ChaosSearch, Datadog, Jenkins and Docker

Culture - You'll have an opportunity to work in an international company with people from a variety of different countries in a central location.Learning - We have a learning and development focused environment with an emphasis on knowledge sharing, training, and regular internal technical talks.Compensation - You’ll get an attractive salary and compensation package. We recognise that life is more than work, and promote work life balance. How to apply: please send us your CV or LinkedIn profile in English.

About Klarna


Since 2005 Klarna has been on a mission to revolutionize the retail banking industry. With over 150 million global active users and 2 million transactions per day, Klarna is meeting the changing demands of consumers by saving them time and money while helping them be informed and in control. Over 450,000 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.

For more information, visit Klarna.comIt 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.

About Engineering at Klarna


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, focusing 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. Check out what it's like to be an engineer at Klarna here.

Apply for this job

Life at Klarna

We are Klarna. A global tech bank on a mission to make payments and shopping as smoooth as possible. - We're one of the world's true unicorn companies - We’re valued at over $2.5bn and we're growing by 40% a year - We have more than 2000 employees from more than 70 countries - We process more than a million transactions a day - About 10,000 people are buying with Klarna at any moment of any day - We have developer centres in Stockholm, Berlin and Linden If you're as excited about the future as we are, join us! It’s a hell of a ride.
Thrive Here & What We Value1. Flat hierarchies with knowledge sharing, internal technical talks2. Harmonious team environment with regular employee events3. Generous parental leave for all genders4. Continuous improvement learning-focused culture5. Quality, flow, fast feedback, end-to-end ownership6. Inclusive growth from failures7. Collaborative Agile teams8. Ownership of outcomes supporting Klarna and customers9. Relocation support for employees10. Bold decision-making by developers
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