> Markdown version of [/jobs/ext/1444461-fullstack-developer](https://www.wearedevelopers.com/jobs/ext/1444461-fullstack-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Fullstack Developer - **Company:** MultiSafepay - **Location:** Málaga, Spain - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Amazon Web Services, Databases, Continuous Integration, Web Development, PostgreSQL, Routing, Node.Js, Performance Tuning, Query Optimization, Release Management, Next.js, Shopify, Data Streaming, Systems Architecture, Systems Integration, TypeScript, ReactJS, Backend, Graphql, React Native, Front End Software Development, NestJS, Docker - **Published:** July 26, 2026 - **Apply:** https://es.indeed.com/viewjob?jk=a8c46a1448adf8f4 ## About the Role * 5+ years of professional web development experience, with deep expertise in React and Next.js (SSR, SSG, routing, and performance tuning) * Strong proficiency in JavaScript and TypeScript, with hands-on Node.js experience (NestJS a strong plus) * Solid knowledge of PostgreSQL including schema design, query optimisation, and migrations * Experience with system design, feature architecture, and data flow modelling across the stack * Familiarity with headless commerce ecosystems such as MedusaJS, Shopify Headless, or Saleor * Strong problem-solving skills and the ability to thrive in a fast-paced, collaborative environment * Proficiency in English with strong communication skills * Production experience with React Native is a strong plus, as is exposure to Docker, CI/CD pipelines, and AWS ## Description Our Technology team builds and owns the platforms and products that power MultiSafepay's payment solutions. Working across a modern stack - React, Next.js, Node.js, NestJS, PostgreSQL, and headless commerce integrations via MedusaJS - the team takes full ownership of features from concept through to production, with a strong emphasis on scalability, performance, and clean architecture., * Designing and implementing scalable, high-quality frontend features using React and Next.js, with a focus on performance and user experience * Contributing to backend development with Node.js and NestJS, and modelling and optimising PostgreSQL schemas, queries, and migrations * Defining system architecture, feature design, and data flow across the full stack * Integrating REST and GraphQL APIs and working with headless commerce platforms such as MedusaJS * Taking ownership of features from concept through to production release, writing clean, well-tested, and maintainable code throughout * Mentoring and guiding mid-level and junior developers across the team ## Related Videos - [Nest.js - TypeScript in the backend can also be clean](https://www.wearedevelopers.com/videos/1033-nest-js-typescript-in-the-backend-can-also-be-clean) - [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling) - [Putting the Graph In GraphQL With The Neo4j GraphQL Library](https://www.wearedevelopers.com/videos/257-putting-the-graph-in-graphql-with-the-neo4j-graphql-library) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [GraphQL + Apollo + Next.js: A Lovely Trio](https://www.wearedevelopers.com/videos/311-graphql-apollo-next-js-a-lovely-trio) - [Next, Nest, Nuxt… Nust?](https://www.wearedevelopers.com/videos/421-next-nest-nuxt-nust) ## Related Articles - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development) - [The Best 7 Frontend Frameworks for Developers in 2025](https://www.wearedevelopers.com/magazine/400-the-best-7-frontend-frameworks-for-developers-in-2025) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers)