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Senior Software Engineer - Java

KlarnaGießen, GermanyOnsite
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.

About KlarnaOn our path to becoming the world's favorite way to shop, we’re assembling an unparalleled global talent network, accelerating individual careers, and disrupting entire industries. 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. We’re in search of global talent eager to embrace a hypergrowth atmosphere and defy their own expectations.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.As a Klarnaut, you’ll 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; teams working on our core checkout product, payment services and Klarna App to name a few.

What you will do


  • Work on a specific problem space critical to Klarna’s current needs with opportunities to switch teams as you and our fast-paced business grow and evolve
  • Bring fresh ideas from all areas, including information retrieval, large-scale system design, data storage/processing, security, artificial intelligence, UI design and mobile development
  • Develop as a professional in an entrepreneurial organisation 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 scaleDesign, develop, test, deploy, maintain and improve, you own the full life-cycle of your code - you write it, you own it!
  • Share your knowledge and help the team evolve best practices
  • Work in small autonomous teams with short release cycles

Who You Are


  • Klarna is looking for ambitious people with significant drive! You should be passionate about your job and enjoy a fast paced international working environment. You will play an important role in taking Klarna to the next level thus, you should desire to go above and beyond to produce best work results! At Klarna we embrace change, you should dare to challenge the status quo and be persistent.
  • We’re looking for engineers that share our passion for building great products using solid engineering practices. We are looking for positive and passionate people who will put teamwork and collaboration above all else. You will need to be comfortable in a rapidly changing environment and able to navigate ambiguity and a high rate of change.

You should have


  • Significant experience with writing Java production code on high availability systems
  • Experience with microservices architecture
  • Passion for writing clean and testable code
  • Have successfully applied and are enthusiastic about Agile or XP practices (Pairing, TDD, BDD, Continuous Integration, Continuous Delivery)
  • Working proficiency and communication skills in verbal and written English

You might also have


  • Bachelor’s degree (or higher) in Computer Science or a related discipline
  • Willingness to learn new technologies and move between different tech stacks
  • Familiarity with cloud-based and DevOps technologies and tools (AWS, Docker, Kubernetes, ECS)
  • Experience as a contributor to an open source project. Contributor to GitHub and/or Stack Overflow
  • Experience in software quality assurance
  • Experience in writing concise and comprehensive test plans and test cases

What we offer youKlarna is one of Sweden's success stories not only for its exceptional growth story but also for its unique place to work at. We think in flat hierarchies, let the best people and ideas grow and always aim for the better.Culture - You'll have an opportunity to work with people from more than 10 different countries in our English/German-speaking office in Gießen (Germany).A strong product development-focused culture, where your work has a very strong impact on the success of the organization.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 recognize 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).Learning - We have a learning and development focused environment with an emphasis on knowledge sharing, training and regular internal technical talks.Collegiality - We encourage a harmonic environment in the teams, therefore we hold regular team events for all employees, joining a monthly breakfast, having lunch together and offer many more benefits.We know that diverse teams are strong teams, and therefore are especially interested in candidates who can contribute to the diversity and excellence of Klarna. We’re building teams of technically curious problem solvers. Come and join us!Interested?We at Klarna's Recruitment Team are happy to receive your application in English or German. Please also forward your certificates which underline your background together with the earliest possible starting date and your salary expectations.

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.

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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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