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Job Details

Klarna logo
FinTech

Senior Fullstack Engineer - Javascript

at Klarna

ExperiencedNo visa sponsorship

Posted 17 days ago

No clicks

Klarna is seeking a Senior Fullstack Engineer proficient in TypeScript, Node.js, React and React Native to design, build and maintain large-scale customer-facing systems. You will own the full lifecycle of software—designing, developing, testing, deploying and improving services—while working in small autonomous teams with short release cycles. The role emphasizes clean, testable code, modern practices (TDD/BDD, CI/CD), mentorship, and contributions to open-source projects. Technologies include cloud-based microservices, REST/GraphQL APIs, and familiarity with tools like Docker, Kafka and AWS is a plus.

Compensation
Not specified

Currency: Not specified

City
Not specified
Country
Not specified

Full Job Description

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.

Awesome to have

• Experience with JavaScript / TypeScript.

• Familiarity with React + React Native with Redux.

• Experience with Node.js and Express.js.

• Knowledge of REST API and GraphQL API.

• Familiarity with Kafka, internal design systems, AWS, Splunk, Datadog, Jenkins, and Docker.

Please include a CV in English.

Curious to learn more about Klarna and what it’s like to work here? Explore our career site!

Job Details

Klarna logo
FinTech

17 days ago

clicks

Senior Fullstack Engineer - Javascript

at Klarna

ExperiencedNo visa sponsorship

Not specified

Currency not set

City: Not specified

Country: Not specified

Klarna is seeking a Senior Fullstack Engineer proficient in TypeScript, Node.js, React and React Native to design, build and maintain large-scale customer-facing systems. You will own the full lifecycle of software—designing, developing, testing, deploying and improving services—while working in small autonomous teams with short release cycles. The role emphasizes clean, testable code, modern practices (TDD/BDD, CI/CD), mentorship, and contributions to open-source projects. Technologies include cloud-based microservices, REST/GraphQL APIs, and familiarity with tools like Docker, Kafka and AWS is a plus.

Full Job Description

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.

Awesome to have

• Experience with JavaScript / TypeScript.

• Familiarity with React + React Native with Redux.

• Experience with Node.js and Express.js.

• Knowledge of REST API and GraphQL API.

• Familiarity with Kafka, internal design systems, AWS, Splunk, Datadog, Jenkins, and Docker.

Please include a CV in English.

Curious to learn more about Klarna and what it’s like to work here? Explore our career site!