Klarna logo

Fullstack Software Engineer - JavaScript

Klarna

About Us

With over 150 million global active users and 2 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

  • Own services end-to-end: decide how best to build, test, deploy, and monitor.
  • Work with large-scale, highly available, and resilient modern financial systems.
  • Be an integral part of a team, contributing to its culture and ways of working, including agile methodologies, pair programming, and mob programming.
  • Implement automated deployment processes to enable multiple code releases per day.
  • Collaborate and grow in a dynamic and autonomous environment, learning from successes and failures to drive continuous improvement.
  • Take ownership of system design, work in cohesion with domain architects, manage end-to-end problem-solving, stakeholder communication, and mentor junior engineers.
  • Drive knowledge sharing through demos, presentations, and tutorials.

Who You Are

  • Proficient in JavaScript, with strong coding abilities.
  • Strong skills with TypeScript, Node.js, and Express.js.
  • Experience with advanced JavaScript libraries and frameworks such as React, React Native, and Redux.
  • Experience in API development and product development.
  • Passionate about writing clean, testable code.
  • Experienced with Agile practices (Pair Programming, TDD, BDD, Continuous Integration, Continuous Delivery).
  • Strong verbal and written communication skills in English.
  • A proactive team player with strong problem-solving skills and the ability to adapt to changing priorities and deadlines.

Awesome to Have

  • Full Stack experience (JavaScript frontend and backend)
  • Familiarity with AWS, Splunk, Ansible, Terraform, Jenkins, Docker, Kubernetes, and Kafka.
  • Experience working in a fast-paced, international environment.

Technologies We Work With

  • JavaScript / TypeScript
  • React and React Native
  • Redux
  • Node.js and Express.js
  • AWS, Splunk, Ansible, Terraform, Jenkins, Docker, Kubernetes, Kafka

Closing

Please include a CV in English and a LinkedIn profile if possible.

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. Klarna has over 3,500 employees and is active in 45 markets.

Benefits
Extracted with AI

  • Dynamic and autonomous environment
  • Opportunities for growth
  • Mentorship for junior engineers

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