> Markdown version of [/jobs/ext/1997677-full-stack-software-development-engineer-react-node-js](https://www.wearedevelopers.com/jobs/ext/1997677-full-stack-software-development-engineer-react-node-js). 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). --- # Full Stack Software Development Engineer React / Node.Js - **Company:** Launchmetrics - **Location:** Madrid, Spain (Remote available) - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Unit Testing, Software as a Service, Software Quality, Data Infrastructure, Distributed Systems, Elasticsearch, Node.Js, Performance Tuning, Software Engineering, TypeScript, GitHub Copilot, ReactJS, Apache Spark, Data Lakes, Information Technology, Graphql, Front End Software Development, React Redux, Restful APIs, Code Restructuring, Databricks - **Published:** August 9, 2026 - **Apply:** https://www.buscojobs.com.es/full-stack-software-development-engineer-react-node-js-en-madrid-ID-366715707 ## About the Role As a Software Development Engineer, you will shape Discover, the brand-monitoring and analytics module of Launchmetrics. You'll own end-to-end features within a pod-driven team, leveraging AI-enabled insights to boost customer value. You'll collaborate across product, design and QA to deliver reliable, scalable solutions while improving code health and architecture. This role offers the chance to influence the tech and product strategy at scale in a fast-paced environment.Compensaciones / Beneficios* Contribute to new features from architecture to market, using modern tech* Maintain and improve existing features through defect fixes and refactors* Serve as frontend expert with React and Redux guidance* Architect efficient database schemas and enhance data models* Collaborate with product management, designers and QA to translate requirements into features* Advocate for code quality with well-structured code and unit tests* Drive AI-led improvements across tooling, docs, and processes* Refactor and optimize for performance and reduced complexityResponsabilidades* Master in Computer Science, with at least 2 years of full-stack SaaS experience* 2+ years of JavaScript/TypeScript experience* Interest in AI-assisted development workflows (e.g., Claude, GitHub Copilot)* Strong React expertise* Experience building a RESTful or GraphQL xqbhyrx API* Experience with modern data platforms (Databricks, Spark, Delta Lake) or similar (e.g., ElasticSearch)* Knowledge of data modeling, performance tuning, and lifecycle management in large-scale distributed systems* Self-starter in a fast-paced environment; good problem solving and adaptability* English fluencyRequisitos principales* remote work* fully remote options* international team* opportunity to influence product/tech strategy ## Description Experteer Overview Lea el resumen de esta oportunidad para comprender qué habilidades, incluidas las habilidades interpersonales relevantes y el dominio de paquetes de software, se requieren.As a Software Development Engineer, you will shape Discover, the brand-monitoring and analytics module of Launchmetrics.You'll own end-to-end features within a pod-driven team, leveraging AI-enabled insights to boost customer value.You'll collaborate across product, design and QA to deliver reliable, scalable solutions while improving code health and architecture.This role offers the chance to influence the tech and product strategy at scale in a fast-paced environment.Compensaciones / Beneficios* Contribute to new features from architecture to market, using modern tech* Maintain and improve existing features through defect fixes and refactors* Serve as frontend expert with React and Redux guidance* Architect efficient database schemas and enhance data models* Collaborate with product management, designers and QA to translate requirements into features* Advocate for code quality with well-structured code and unit tests* Drive AI-led improvements across tooling, docs, and processes* Refactor and optimize for performance and reduced complexityResponsabilidades* Master in Computer Science, with at least 2 years of full-stack SaaS experience* 2+ years of JavaScript/TypeScript experience* Interest in AI-assisted development workflows (e.g., Claude, GitHub Copilot)* Strong React expertise* Experience building a RESTful or GraphQL xqbhyrx API* Experience with modern data platforms (Databricks, Spark, Delta Lake) or similar (e.g., ElasticSearch)* Knowledge of data modeling, performance tuning, and lifecycle management in large-scale distributed systems* Self-starter in a fast-paced environment; good problem solving and adaptability* English fluencyRequisitos principales* remote work* fully remote options* international team* opportunity to influence product/tech strategy ## Related Videos - [Shipping Faster with Less: Render on Cloud Hosting, AI Workloads, and the Future of DevOps](https://www.wearedevelopers.com/videos/1894-shipping-faster-with-less-render-on-cloud-hosting-ai-workloads-and-the-future-of-devops) - [Stop using Node.js like in 2020! What changed and what you can do today with Node.js](https://www.wearedevelopers.com/videos/100011-stop-using-node-js-like-in-2020-what-changed-and-what-you-can-do-today-with-node-js) - [Watch Tests Go Brrrr! : Getting Started with Cypress in ReactJS](https://www.wearedevelopers.com/videos/282-watch-tests-go-brrrr-getting-started-with-cypress-in-reactjs) - [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) - [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) - [Stop Using Node.js Like It’s 2020! - Alfonso Graziano](https://www.wearedevelopers.com/videos/1863-stop-using-node-js-like-it-s-2020-alfonso-graziano) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [React Developer Salary [2023]](https://www.wearedevelopers.com/magazine/198-react-developer-salary-2023) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [16 Best Free React UI Libraries in 2025](https://www.wearedevelopers.com/magazine/148-16-best-free-react-ui-libraries-in-2025) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)