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Klarna

Senior Software Engineer - JavaScript

Klarna
Sweden · Full-time · Mid-Senior
About Us

With over 85 million global active users and 2,5 million transactions per day, Klarna is on the way to becoming the world’s favorite way to shop. To help us get there, we’re assembling an unparalleled global talent team—accelerating individual careers, and disrupting entire industries. We’re looking for people ready to achieve the extraordinary and embrace our bold ambitions as we shape the future of payments and fintech. Will you join us?

What You Will Do

  • Tackle specific problem spaces critical to Klarna’s current needs, with ample growth opportunities in a fast-paced business environment.
  • Bring innovative ideas from diverse areas, including information retrieval, large-scale system design, data storage/processing, security, artificial intelligence, UI design, and mobile development.
  • Develop your professional skills in an entrepreneurial organization that encourages working 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 software; take full responsibility for the lifecycle of your code.
  • Share your knowledge and help the team evolve best practices; act as both a mentor and mentee.
  • Work in small, autonomous teams with short release cycles.
  • Contribute to open source projects: Klarna GitHub.

Who You Are

  • Proficient in TypeScript and Node.js.
  • Experienced with common JavaScript libraries and frameworks.
  • Skilled in React and React Native.
  • Knowledgeable in product development, cloud technologies, and microservices.
  • Passionate about writing clean and testable code.
  • Familiar with Agile practices, including Pairing, TDD, BDD, Continuous Integration, and Continuous Delivery.

Technologies We Work With

  • JavaScript / TypeScript
  • React + React Native with Redux
  • Node.js and Express.js
  • REST API and GraphQL API
  • Kafka
  • Internal design system
  • AWS, Splunk, Datadog, Jenkins, and Docker

Closing

Please include a CV in English.

Since 2005, Klarna has been on a mission to reimagine how consumers spend and save in their daily lives. We help people save time and money and reduce financial worry. With over 85 million global active users and 2.5 million transactions per day, our vision is a world where Klarna empowers everyone, everywhere, through seamless financial and commerce experiences—as a personalized, trusted assistant making financial empowerment effortless.

Over 575,000 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.

Key Skills

Ranked by relevance

react artificial intelligence continuous integration react native javascript typescript jenkins graphql datadog splunk cloud tdd ui
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Country Guide

Sweden

Nordic quality of life with strong tech brands

Posted
Jan 22, 2025
Type
Full-time
Level
Mid-Senior
Location
Stockholm
Company
Klarna

Industries

Software Development IT Services IT Consulting Financial Services

Categories

Finance Information Technology Engineering

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