Senior Fullstack Engineer - Javascript (Contractor)

Join Klarna's engineering community, where you'll be part of a customer-centric community that thrives in collaboration, innovating solutions that continuously redefine the industry.
Apply! We usually respond within two weeks

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
Help us make shopping online even more smoooth! As a Senior Software Engineer, you will:

• 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 and mob programming.
• Utilize automated deployment enabling code release multiple times a day.
• Succeed, fail, and learn together with other talented people, fostering an environment that encourages growth and views education as an outcome of failure, getting us closer to the next breakthrough.
• Work with modern tools and languages that excite you.

Who You Are

• Strong coding ability in Node.js using TypeScript.
• Experience with common JavaScript libraries and frameworks.
• Experience using React and React Native.
• Experience with product development, cloud, and microservices.
• A passion for writing clean and testable code.
• Experience with Agile practices (Pairing, TDD, BDD, Continuous Integration, Continuous Delivery).

Awesome to Have

• Familiarity with REST API and GraphQL API.
• Experience with Kafka.
• Knowledge of internal design systems.
• Proficiency with AWS, Splunk, Datadog, Jenkins, and Docker.

Closing:

This position will initially be offered as a contract, providing an excellent opportunity for the right candidate to demonstrate their skills and make a meaningful impact. With proven performance, there is strong potential for this position to evolve into a long-term opportunity within our team. We’re excited to see how you can contribute and grow with us!

Please include a CV in English.

Department Engineering Locations Warsaw, Poland Monthly salary PLN28,476.46 - PLN32,305.09 Employment type Contract About Klarna
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.

Founded in 2005 Co-workers 3,800 Turnover $2.5bn Apply! Engineering · Warsaw, Poland Senior Fullstack Engineer - Javascript (Contractor)
Join Klarna's engineering community, where you'll be part of a customer-centric community that thrives in collaboration, innovating solutions that continuously redefine the industry.