Do you want to play a key role in revolutionizing the future of finance? Join Klarna - a global leader in deferred payments, with over 85 million active users and 2.5 million transactions processed daily! As a pioneer in modern payment solutions, Klarna is developing innovative methods that streamline the shopping experience, enhance transaction security, and expand the availability of purchasing options.
Were seeking individuals eager to achieve remarkable results and share their bold vision to redefine the future of payments and fintech. Send us your CV - we can’t wait to meet you!
Our client: Klarna
Location: Warsaw or Wrocław (hybrid work: 2-3 days in the office)
To develop and maintain efficient backend systems in a fast-paced environment.
requirements-expected :
4+ years of experience with JavaScript/TypeScript for backend development;
Extensive experience with Node.js for backend development;
Experience with CI/CD tools and package managers such as npm or yarn;
Proven experience working with NoSQL databases like MongoDB or Firebase, as well as handling SQL databases for Node.js applications;
Strong familiarity with serverless architecture and experience using AWS services (Lambda, DynamoDB, S3, etc.) and other cloud infrastructure for deploying and managing backend systems;
Solid experience with AWS services for scaling and deploying backend applications is a must;
Ability to design scalable, event-driven backend systems using Node.js;
Knowledge of microservices, RESTful API design, and GraphQL;
Proficiency in debugging, refactoring, and writing clean, testable code. Strong experience in unit testing and familiarity with testing frameworks like Jest or Mocha;
Language proficiency: Advanced English (minimum B2 level);
A solid educational foundation in Computer Science, Information Technology, or a related field is preferred, ensuring strong technical principles essential for the role.
offered :
Great opportunity for personal development in a stable and friendly large multinational company;
Start-up mentality, small agile teams;
Global Reach: Impact millions with seamless shopping and payments;
