Senior Fullstack Developer
- Stockholm
- Permanent
- Heltid
Start Date: As soon as possible
Languages: English required, French is a plusWe are looking for an experienced Fullstack Developer with strong expertise in React and Node.js to help us build and scale robust, modern web applications.Responsibilities :Design, develop, and maintain scalable web applications using React (frontend) and Node.js (backend).Collaborate closely with product managers and designers to deliver high-quality user experiences.Build and consume RESTful APIs and work with real-time data where needed.Write clean, maintainable, and well-tested code.Optimize application performance and ensure cross-browser compatibility.Participate in code reviews, technical planning, and architectural discussions.Contribute to CI/CD pipeline improvements and deployment workflows.Work with modern tools and frameworks to improve developer productivity and software quality.Requirements :5+ years of professional experience as a Fullstack Developer.Strong proficiency in React (hooks, context, modern state management) and Node.js.Experience with TypeScript, or willingness to work with it regularly.Solid understanding of modern web architecture, REST APIs, and async data flows.Familiarity with relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB).Comfortable with Git and collaborative development workflows.Experience working in an agile, remote environment.Ability to write unit and integration tests.Nice To Have :Experience with serverless frameworks or microservices architecture.Familiarity with GraphQL or WebSocket implementations.Understanding of DevOps or basic cloud deployment (AWS, Vercel, Docker).Interest in UI/UX and performance optimization.Exposure to monitoring tools and logging best practices.