technologies-expected :

technologies-optional :

about-project :

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 (hybrid work when required)
Duration: long-term agreement
Technology stack: JavaScript, TypeScript, Node.js, React, AWS, Docker, Redux, MongoDB, Firebase

responsibilities :

To be a key member of the team, actively shaping its culture and processes, including agile practices like pair and mob programming;
To use automated deployment tools to support frequent, daily code releases;
To collaborate with a team of skilled professionals, embracing success, failure, and shared learning to create a growth-oriented environment where failures are seen as educational steps toward innovation;
To take ownership of features end-to-end, manage incidents, and drive continuous improvement;
To make well-reasoned design decisions and address security, privacy, and compliance systematically.

requirements-expected :

Core Language: Javascript/Typescript;
Framework knowledge: React.js (front-end), Node.js (back-end), Redux, Context API, Hooks;
Tools: CI/CD experience, familiarity with npm/yarn, Webpack, Babel;
Databases: NoSQL (MongoDB, Firebase), SQL for backend systems with Node.js;
Cloud and DevOps: Familiarity with serverless architecture (e.g., AWS), experience with AWS services and infrastructure;
System Design Focus: frontend: scalability, performance, state management in React.js, backend: scalable, event-driven in Node.js;
Debugging & Testing: Approach to debugging, refactoring, clean and testable code;
Familiarity with CI/CD pipelines, automating workflows;
Experience with AWS services and cloud infrastructure;
Strong educational background in Computer Science, Information Technology, or a related field;
Language proficiency: Advanced English (minimum B2 level).

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;
Career growth and additional education.

technologies-optional :