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Full Stack Engineer - Growth & Marketing
Build and optimize Treatwell’s marketplace growth stack—SEO foundations, experimentation, and conversion flows—using React, TypeScript, Java, and Spring Boot on AWS.
Programador full stack React & .NET (Senior)
Senior Full Stack Developer builds and maintains a corporate intranet using React and .NET, integrating with Microsoft 365, SharePoint, and Azure for an international hospitality group.
Programador/a Full Stack (Java Angular)
Build and maintain full-stack financial trading apps using Java/Spring and Angular, writing unit, integration, and E2E tests in an agile team.
Senior React Engineer, Full Stack
Build and maintain a React/TypeScript frontend and Go backend for a fintech platform that lets businesses rent or subscribe to IT hardware via API-first subscriptions.
Senior Software Engineer (Full Stack)
Build a SaaS platform that automates green certification for energy-intensive industries using React, Node.js, TypeScript, PostgreSQL, and AWS.
Full Stack Engineer
Build and lead full-stack features using TypeScript, Vue 3/Nuxt 3, and Java/Spring, driving quality and maintainability across frontend and backend services.
Senior Full Stack Engineer
Build and maintain full-stack applications using Java/Spring Boot, Angular, and AWS services while leading code reviews and mentoring engineers.
Freelance Senior OR Junior Full Stack Developer – React / Next.js / Node.js – Barcelona
Build and maintain React/Next.js frontends and Node.js backends for a healthcare-focused product, collaborating in an agile team to ship features and improve code quality.
Senior Full-Stack Developer: Python & React (Hybrid)
Builds full-stack apps in Python (FastAPI) and React/TypeScript, integrating BigQuery and AlloyDB, and shipping REST APIs and orchestration tools.
Senior Full Stack Developer (React/Node) - Remote & Flexible
Senior Full Stack Developer building React user interfaces and Node.js back-end services with JavaScript/TypeScript, automated testing, and cross-functional collaboration.
Full Stack Engineer
Build and ship production-scale GenAI systems and full-stack features using Ruby on Rails, React, TypeScript, and PostgreSQL for a Series B AI startup.
Desarrollador Full Stack
Senior Full Stack Developer building next-gen security products in a cloud-native stack using Java/Spring Boot, Node.js, Go, Angular, and AWS, with Kafka and Kubernetes.
Full Stack Software Development Engineer PHP/React
Build and maintain a high-scale SaaS platform for fashion brands’ product launches and events using PHP/Laravel on the back-end and React on the front-end, with AI-assisted tooling integrated into daily workflows.
Desarrollador Full Stack
Senior Full Stack Developer building next-gen security products in a Scrum team, using Java/Spring Boot, Node.js, Go, Angular, and AWS microservices.
Full-Stack Developer (Angular & Node)
Build and maintain web apps with Angular and Node.js, deploy serverless functions on AWS Lambda, and manage databases and storage using AWS services.
DevOps Security Engineer
Owns security, QA, and DevOps for a Web3 wallet and crypto trading tools, hardening AWS infrastructure, CI/CD pipelines, and codebases against OWASP Top 10 and Web3-specific threats.
Fullstack Software Engineer
Builds high-traffic e-commerce UIs with React/Vue/Angular, optimizes UX, and collaborates with cross-functional teams to ship features using modern JS tooling.
Backend Developer (node.js)
Build and maintain Node.js microservices and APIs for a sports-focused social platform, using TypeScript, MongoDB, and NestJS.
Backend Developer NodeJS
Build and scale robust Node.js microservices and RESTful APIs for a global insurance client using TypeScript, PostgreSQL, and AWS.
Senior React Frontend Developer (híbrido Madrid / Mallorca)
Build and evolve scalable React/TypeScript frontends for B2B and B2C travel platforms, integrating REST/GraphQL APIs and applying Clean Architecture and micro-frontends.