Empleos de mid-senior full stack developer en Madrid

Full Stack Software Developer – AI-Enabled Fleet ManagementTake your career to the next level withAmaris Consultingas aFull Stack Software Developerworking on anAI-enabled fleet management solution . You’ll join an international, fast-growing group with a €800M turnover and 1,000+ clients worldwide, contributing to innovative digital solutions used...

Desarrollador Senior Full Stack con experiencia en backend y frontend, para unirse a un equipo innovador en Barcelona.Contrato indefinido y oportunidad de crecimiento.

Senior Full Stack Engineer (.NET and Vue)Join to apply for theSenior Full Stack Engineer (.NET and Vue)role atLanguageWireSenior Full Stack Engineer (.NET and Vue)1 week ago Be among the first 25 applicantsJoin to apply for theSenior Full Stack Engineer (.NET and Vue)role atLanguageWireGet AI-powered advice on this job and more exclusive...

A leading software company in Madrid is seeking a Senior/Lead AI Software Engineer to architect and scale AI-driven products. The ideal candidate will have over 5 years of full-stack development experience and 2+ years in AI/ML engineering, with expertise in Rust or Golang. Responsibilities include developing AI features, integrating LLMs into...

Actual Talent Spain is recruiting a Senior Full-Stack Engineer for a German Sustainable Tech Unicorn expanding its Madrid hub. You will own end-to-end development of products that help 2,000+ global companies comply with ESG regulations.You will work in dense agile squads, design scalable microservices, and contribute to a serverless Hub, focusing on...

Frontiers Media SA is seeking a Senior Full-Stack Engineer with a backend lean to join the RTM team. You will own complex backend systems, lead end-to-end features, and drive production reliability for a distributed .NET/Vue/Nuxt platform.You will mentor peers, shape architecture, and ensure scalable, high-performance experiences for researchers worldwide....

Altia is seeking a Senior Full-stack Software Engineer to join our team on an international project focused on the development and maintenance of financial applications for a major European organization. You will contribute to secure, reliable, and high-quality enterprise software solutions while collaborating with a multicultural team in Madrid. You'll work...

Avooq is seeking a talented Full-Stack AI Engineer to migrate to scalable infrastructure and maintain a high-performance platform. You will lead the migration to custom cloud infrastructure, build scalable React/Next.js and Node.js systems, and deploy production-grade AI/LLM integrations with high concurrency. Ideal candidates have 5+ years of full-stack...

Tecdata Engineering busca un Senior Full Stack Developer con experiencia en Angular y Java para desarrollar y mantener aplicaciones empresariales de alto rendimiento. Se trabajará en el ciclo completo, desde frontend hasta backend y APIs, utilizando IA generativa para mejorar productividad y calidad. Se requiere experiencia con Angular/React/Vue, Java y...

LanguageWire Ltd is hiring a Senior Full Stack Engineer to lead the build of a new customer-facing tool from ground up. You will influence architecture, tech direction, and team culture from day one, collaborating with a Product Manager and one more Engineer to shape the team and product. You’ll own front-end interfaces, back-end services, databases, and...

Parser Limited is seeking a Senior Full Stack Engineer to drive development across the JVM backend (Java/Kotlin) and modern frontend (JavaScript/TypeScript) in a hybrid Madrid setting. You will own features from API design to UI implementation, collaborating with product and design teams to deliver scalable, user-centric travel ecosystem solutions. The role...

Techmunity is hiring Senior Full Stack Engineers to build AI-powered agents that can resolve customer service problems by interacting with brand data. You will design and implement backend and frontend systems, connect data sources, and scale infrastructure to support real conversations. You will work on cross-functional features across LLM/agent systems,...

Capitole keeps growing, and we want you to grow with us! We are seeking a Senior Full-Stack Developer (M/F) to join an international project. You will design, develop and maintain scalable full-stack applications using Java, Spring Boot, and Angular, contributing to architecture and DevOps practices. The role requires 3+ years of experience, strong...

Full Stack Engineer (Senior/Lead) ID41561 ($2,500 signing bonus) AgileEngine is an Inc. 5000 company that creates award-winning software for Fortune 500 brands and trailblazing startups across 17+ industries. We rank among the leaders in application development and AI/ML, and our people‑first culture has earned us multiple Best Place to Work awards.Why...

Joppy is looking for a Senior Full Stack Developer to join their team in Madrid. This hybrid role requires strong experience in full-stack development, particularly with Node.JS, TypeScript, and React.JS. The developer will be crucial in shaping Business Partner Transparency within the company HUB, providing innovative solutions that automate compliance...

Bark is seeking a Senior Full Stack Engineer to join our Acquisition squad. You’ll work on Python backend and React/TypeScript frontend, shaping marketing tech that drives customer growth in a fully remote role based in Spain. You’ll collaborate with marketing, product and design, build AI-powered tooling, implement guardrails for live AI outputs, and...

Leadtech seeks a Senior Full Stack Product Engineer to own end-to-end features for our top web products. You will shape features with the Product team, translate business goals into technical decisions, and uphold high standards for quality and performance. Expect to work across frontend and backend using React, Next.js, Node.js, TypeScript, and JavaScript,...

La empresa Zemsania Global Group busca un Senior Full Stack Developer / Technical Leader para unirse a su equipo en Madrid. Se requiere experiencia en Java/Angular, arquitectura de microservicios y liderazgo técnico para guiar equipos de desarrollo en proyectos innovadores. La posición es híbrida (3 días oficina Manoteras, 2 días teletrabajo) y ofrece...

topi is seeking a Senior Fullstack Engineer in Madrid with deep expertise in Go to join a diverse, product-minded team. You will own architecture from the database to the browser, primarily focusing on the Go backend and APIs while contributing to React/TypeScript frontend when a feature requires it. You will collaborate closely with Product and Design to...

A leading technology firm in Spain seeks a Full-Stack Engineer to shape key tools in contextual advertising. The role involves developing both client-side features and scalable backend APIs, demanding proficiency in modern front-end languages and software engineering principles. Candidates should have 5+ years of experience and demonstrate adaptability in a...