> Markdown version of [/jobs/ext/1615475-senior-full-stack-developer-node-js-react](https://www.wearedevelopers.com/jobs/ext/1615475-senior-full-stack-developer-node-js-react). 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). --- # Senior Full Stack Developer (Node.Js & React) - **Company:** Lionhires Recruitment - **Location:** Valencia, Spain - **Contract:** Permanent contract - **Skills:** Acceptance Test-Driven Development, Web Development, MongoDB, MySQL, Node.Js, NoSQL, Scrum Methodology, Queueing Systems, RabbitMQ, Redis, Next.js, SQL Databases, TypeScript, WebSocket, ReactJS, Git, Apache Kafka, Graphql, Front End Software Development, NestJS, Restful APIs, Docker, Web Api, Microservices - **Published:** July 31, 2026 - **Apply:** https://www.buscojobs.com.es/senior-full-stack-developer-node-js-react-en-valencia-ID-364276397 ## About the Role Are you a versatile engineer who thrives at the intersection of robust backend architecture and seamless frontend user experiences? We are looking for a Senior Full-Stack Engineer (Node.js & React) to join a high-caliber team building scalable, greenfield platforms from the ground up. This is a unique opportunity to own end-to-end feature development, tackle high-load data challenges, and directly influence the trajectory of a cutting-edge product., As their exclusive recruitment partner, Lionhires manages their full-cycle talent acquisition.What You Will DoArchitect and Build: Drive the end-to-end development of an in-house platform, taking new features from initial concept to deployment.Scale & Optimize: Design high-performing microservices capable of handling heavy traffic, utilizing RabbitMQ and Redis for optimal message queuing and caching.Integrate Systems: Seamlessly connect complex, third-party APIs with our proprietary Fintech solutions.Ensure Quality: Write clean, maintainable, and test-driven (TDD) code in TypeScript across both NestJS and NextJS frameworks.Collaborate Efficiently: Participate actively in an Agile/Scrum environment, contributing to bi-weekly sprints, grooming sessions, and strategic planning.What You BringDeep Web Expertise: 5+ years of commercial web development experience, with a proven track record of delivering production-grade applications.Full-Stack Mastery: 3+ years of dedicated, commercial experience with both Node.js and React.Modern Tech Stack: Hands-on experience with TypeScript, NextJS, NestJS, Apollo, and Material UI.Data & Architecture: Strong proficiency with REST, GraphQL, WebSockets, and managing high-load SQL/NoSQL databases (specifically MySQL and MongoDB). Engineering Best Practices: A solid understanding of microservice architecture, TDD principles, and Git version control.Communication: Upper-intermediate to fluent English communication skills (written and spoken). Bonus Points For2+ years of hands-on experience with CI/CD pipelines, Docker, and Kubernetes.Deep familiarity with various queue brokers (RabbitMQ, Apache Kafka, etc.). ## Description Are you a versatile engineer who thrives at the intersection of robust backend architecture and seamless frontend user experiences?We are looking for a Senior Full-Stack Engineer (Node.js & React) to join a high-caliber team building scalable, greenfield platforms from the ground up.This is a unique opportunity to own end-to-end feature development, tackle high-load data challenges, and directly influence the trajectory of a cutting-edge product.¿Le interesa este puesto?Puede encontrar toda la información relevante en la descripción a continuación.About the ClientOur partner is an elite tech company building product engineering across Fintech, iGaming, and Marketing.They turn innovative ideas into high-performing engines and launch them at scale.As their exclusive recruitment partner, Lionhires manages their full-cycle talent acquisition.What You Will DoArchitect and Build: Drive the end-to-end development of an in-house platform, taking new features from initial concept to deployment.Scale & Optimize: Design high-performing microservices capable of handling heavy traffic, utilizing RabbitMQ and Redis for optimal message queuing and caching.Integrate Systems: Seamlessly connect complex, third-party APIs with our proprietary Fintech solutions.Ensure Quality: Write clean, maintainable, and test-driven (TDD) code in TypeScript across both NestJS and NextJS frameworks.Collaborate Efficiently: Participate actively in an Agile/Scrum environment, contributing to bi-weekly sprints, grooming sessions, and strategic planning.What You BringDeep Web Expertise: 5+ years of commercial web development experience, with a proven track record of delivering production-grade applications.Full-Stack Mastery: 3+ years of dedicated, commercial experience with both Node.js and React.Modern Tech Stack: Hands-on experience with TypeScript, NextJS, NestJS, Apollo, and Material UI.Data & Architecture: Strong proficiency with REST, GraphQL, WebSockets, and managing high-load SQL/NoSQL databases (specifically MySQL and MongoDB).Engineering Best Practices: A solid understanding of microservice architecture, TDD principles, and Git version control.Communication: Upper-intermediate to fluent English communication skills (written and spoken).Bonus Points For2+ years of hands-on experience with CI/CD pipelines, Docker, and Kubernetes.Deep familiarity with various queue brokers (RabbitMQ, Apache Kafka, etc.).What's in It for YouCompetitive Compensation: An attractive salary package with structured annual reviews to reward your growth.Seamless Relocation: A comprehensive relocation package covering your flights and a 2-week hotel stay to get you settled.Legal Peace of Mind: Official EU/Spain employment contract, including sponsorship and registration support for your family members.Work-Life Balance: 23 working days of annual vacation to ensure you stay refreshed and energized.Continuous Growth: Dedicated budget for professional learning, development opportunities, and partial compensation for language classes.xqbhyrx Vibrant Culture: Team-building activities, birthday gifts, and access to an upcoming Social Club featuring over 50 events per year.#J-*****-Ljbffr ## Related Videos - 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