1,225,134+ Senior Full Stack Developer Reactjava Remote Jobs in Spain — Top Companies Hiring June 2026

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Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Todos los candidatos deben asegurarse de leer atentamente la siguiente descripción del puesto y la información antes de enviar su solicitud.Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fi ...

Ingeniero/A De Software Full Stack | Remoto En España

Occupop en Alicante busca un Ingeniero de Software para ayudar en el desarrollo de su sistema de gestión de almacenes. El puesto implica el desarrollo full-stack con tecnologías como TypeScript y React en el frontend, y Python + Quart en el backend.¿Todo listo para enviar su solicitud? Por favor, lea la de ...

Full Stack Software Engineer (C++/Angular) For Medical Apps

Siemens Healthineers in Getafe, Spain is seeking a skilled Software Developer (C++ / Angular) to join their international team. This role involves developing and maintaining high-quality software solutions across backend and frontend technologies, ensuring secure and scalable applications.¿Posee las habili ...

Full Stack Java/Angular Dev Para Banco | Inglés B2

Plexus Tech en Valencia busca un/a programador/a Full Stack con al menos 5 años de experiencia. Se requiere un sólido conocimiento en Java, TypeScript, Angular y un nivel de inglés B2. Ofrecemos un ambiente dinámico y la posibilidad de trabajar en un importante proyecto del sector bancario.No deje pasar es ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281062

Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# Inscríbase (haciendo clic en el botón correspondiente) después de revisar toda la información relacionada con el trabajo a continuación.Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# En BairesDev llevamos 15 años ...

Ai‑driven Full‑stack Engineer For Social Impact Tech

NARIA está buscando un Full Stack Engineer para unirse a su equipo en la Comunidad Valenciana. El candidato ideal tendrá experiencia en la construcción de software y debe sentirse cómodo en un entorno dinámico donde las decisiones técnicas son cruciales.Asegúrese de leer la descripción completa a continuac ...

Desarrollador/A Full Stack (Angular / Node) Con Inglés (Barcelona)

¿Quiénes somos Aubay?Todas las habilidades, cualificaciones y experiencia relevantes que necesitará un candidato seleccionado se enumeran en la siguiente descripción.Somos una multinacional europea creada en 1997 con presencia en España desde hace más de 20 años, cotizamos en bolsa con el índice (EUR ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281062

Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# Inscríbase (haciendo clic en el botón correspondiente) después de revisar toda la información relacionada con el trabajo a continuación.Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# En BairesDev llevamos 15 años ...

Lead Full Stack Engineer (Node.Js, React/Vue & Ai Solutions)

Lead Full Stack Engineer (Node.Js, React/Vue & AI Solutions)¿Interesado en saber más sobre este trabajo? Desplácese hacia abajo y descubra qué habilidades, experiencia y cualificaciones académicas se necesitan.2 days ago Be among the first 25 applicantsTop 3 Reasons To Join Us100% Remote ...

Lead Full Stack Engineer (Node.Js, React/Vue & Ai Solutions)

Lead Full Stack Engineer (Node.Js, React/Vue & AI Solutions)Consulte la descripción del puesto a continuación. Si confía en que tiene las habilidades y la experiencia adecuadas, envíe su solicitud hoy mismo.Working on the latest tech for the Insurtech Market LeaderTop 3 Reasons To Join Us ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281929

En BairesDev llevamos 15 años liderando proyectos de tecnología para clientes como Google, Rolls-Royce y las startups más innovadoras de Silicon Valley. Actualmente, contamos con un equipo de 4000 profesionales conformado por el top 1% de la industria trabajando de forma remota desde más de 50 países.¿List ...

Full Stack .Net Programmer (Relocate To Malta/Big 4)

Our client’s Microsoft Business Solutions team is a Microsoft Gold Partner and leader in Microsoft software implementations for medium to large organisations, providing their clients with the ability to keep up with the ever-changing digital world by implementing Microsoft’s Enterprise Resource Planning (ERP) an ...

Ai Driven Full Stack Engineer — Voice & Real Time Systems

The Agile Monkeys in Spain seeks a motivated developer to build comprehensive AI systems from scratch.Todas las habilidades, cualificaciones y experiencia relevantes que necesitará un candidato seleccionado se enumeran en la siguiente descripción.This role involves working with voice technologies and ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281064

Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# Todos los posibles candidatos deben leer con atención los siguientes detalles de este trabajo antes de presentar una candidatura.BairesDev Ribarroja, Valencian Community, SpainEn BairesDev® llevamos 15 años liderando proyectos de ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281064

Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# Todos los posibles candidatos deben leer con atención los siguientes detalles de este trabajo antes de presentar una candidatura.BairesDev Ribarroja, Valencian Community, SpainEn BairesDev® llevamos 15 años liderando proyectos de ...

Full Stack Software Engineer Ai First (Angular And Java)

Traditional compliance is slow and manual. At WorkFlex, we have built the platform that automates it. We are looking for experienced Fullstack Product Engineers who want to build high‑scale systems using the most advanced agentic workflows available.¿Es usted el solicitante adecuado para esta oportunidad? ...

Ingeniero Informático: Ia, Web Full Stack Y Nube (Gijón)

SEPEPAEnvíe su CV y cualquier información adicional requerida después de haber leído esta descripción, haciendo clic en el botón de solicitud.- Servicio Público de Empleo del Principado de Asturias busca un Responsable de Transformación Digital para el desarrollo y mantenimiento de aplicaciones y sis ...

Lead Full Stack Engineer (Node.Js, React/Vue & Ai Solutions)

Lead Full Stack Engineer (Node.Js, React/Vue & AI Solutions)Consulte la descripción del puesto a continuación. Si confía en que tiene las habilidades y la experiencia adecuadas, envíe su solicitud hoy mismo.Working on the latest tech for the Insurtech Market LeaderTop 3 Reasons To Join Us ...

Full Stack Java + React Technical Leader Trabajo Remoto | Ref281062

Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# Inscríbase (haciendo clic en el botón correspondiente) después de revisar toda la información relacionada con el trabajo a continuación.Full-Stack Java + React Technical Leader - Trabajo Remoto | REF# En BairesDev llevamos 15 años ...

Full Stack Engineer: Own & Ship Ai Powered Back Office

Tamarind Intelligence is seeking a Full Stack Developer to help shape the future of back-office solutions for small businesses. This role emphasizes problem-solving, requiring a blend of front-end and back-end development skills, particularly in Python and React. You will own projects from inception to deploymen ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: Ai Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Desarrollador de PHP

Take your career to the next level with Amaris Consulting as aPHP Developer . Be part of an international team, thrive in a global group with a €800M turnover and over 1,000 clients worldwide, and an agile environment. The ideal candidate will have a proven track record in building scalable, high-quali ...

Tech Lead / Engineering Manager Fullstack JS/TS

About Lemlist lemlist is a global B2B SaaS business with one mission: help any business grow . We’re doing $38M+ ARR , while being: Bootstrapped & profitable 120 people, remote-friendly, agile Majority-owned by our founder Guillaume Moubeche, givi ...

Desarrollador/a Full Stack (Java + Angular) — 100% Remoto (Madrid)

En Métrica España, consultora tecnológica líder, buscamos un/a Full Stack Developer con +5 años de experiencia para incorporarse a un proyecto innovador y de alto impacto. Trabajarás en un entorno colaborativo, con autonomía real y foco en calidad técnica en uno de nuestros mayores clientes del sector banc ...

Hybrid Full Stack Engineer in Madrid | Equity & Flex Hours

A startup in sustainability technology in Salamanca is seeking an experienced web developer to join its lean team. You will be responsible for building applications and integrating RESTful APIs while ensuring effective data management. The role offers a competitive salary, annual reviews, and flexible hours in a ...

Desarrollador Full Stack: IA, .NET, Dynamics 365 y Cloud

Una empresa tecnológica innovadora en Pamplona busca un Desarrollador/a Full Stack con experiencia de 3 a 5 años. El candidato trabajará en el desarrollo de aplicaciones empresariales, incluyendo el ERP basado en Microsoft Dynamics 365. Se valorará la experiencia en .NET, SQL y programación con IA generativa. Of ...

Full Stack Real Time Systems Engineer (C++, C#, Python)

A technology solutions provider in Málaga is seeking a versatile Software Engineer. The role involves backend development using .NET/C#, Python, and C++, as well as frontend applications using TypeScript and Angular. Candidates should have experience in cloud deployment with Docker and Kubernetes, and demonstrat ...

AI Enabled Full Stack Engineer | Build & Scale Web Apps

A growing software company in Las Palmas is seeking a Full Stack Engineer with 3+ years of experience, proficient in web application development and familiar with AI tools. The role includes developing modern web applications, contributing to technical discussions, and ensuring clean code practices within a coll ...

Full Stack PHP/MySQL Dev with Python/Linux Skills

DIGITAL CENTRE, S.L. a Manresa busca un/a programador/a PHP/MySQL full-stack amb experiència per a la millora contínua de pàgines web. El candidat ideal tindrà la capacitat d'autonomia i bona anàlisi. La posició implica desenvolupar noves funcionalitats, mantenir el codi net i col·laborar amb l'equip d ...

Full Stack Engineer — PHP/Vue.js with AI Tools (Hybrid)

Talent-C is looking for a Full Stack engineer proficient in PHP and Vue.js to join their team in Barcelona. The role involves platform migration and architectural improvements, as well as AI-assisted development. Ideal candidates have strong PHP experience, a solid architectural mindset, and familiarit ...

Front end/full stack HMI engineer (Embedded & Industrial Systems)

Zumbach Electronic AG is an internationally active, Swiss family-owned company with its headquarters in Orpund/Biel and further offices globally. For more than 65 years, we are among the leading producers of high-tech measurement and control systems for the cable, plastics and steel industries. To ...

Lead Backend & Full Stack Engineer for AI Driven Trials

Cori Clinical, based in Barcelona, is seeking a Lead Backend / Full-Stack Engineer to join their foundational engineering team. You will work on building robust backend systems and APIs for the AI-native clinical trials platform, collaborating closely with product and clinical teams. The role involves ...

AI Driven Full Stack Engineer: End to End Delivery

Shakers in Madrid is seeking a Full-Stack Engineer to own end-to-end changes and features while leveraging AI tools for delivery. This role demands strong expertise across the technology stack, with a focus on AI-assisted development and high-quality code practices. The ideal candidate will have a robu ...

Full Stack Engineer (Django/React) for Energy Tech Growth

Fiva Energía busca un perfil con 3-5 años de experiencia en desarrollo para unirse a su equipo innovador en Madrid. El candidato ideal tendrá dominio en Django y React, participará en integraciones y contribuirá a la calidad del producto. Se ofrece un entorno de trabajo ágil y la oportunidad de crecer ...

Ingeniero/a de Software Full Stack (C# y TypeScript)

Indra Group busca un/a Ingeniero/a de Software en Monterroso, Galicia, para desarrollar aplicaciones web y arquitecturas cliente-servidor. El candidato ideal tendrá experiencia en el desarrollo de aplicaciones backend y frontend utilizando diversas tecnologías. El puesto incluye el diseño de soluciones ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, com ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, com ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AISira AI is building an AI Agent Performance Platform.The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across everyprompt, model, workflow, and tool change.The initial MVP helps AI teams upload or ingest agent runs, inspec ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, com ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, com ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, inspect what happened inside each run, com ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

Contract Founding Full Stack Engineer: AI Agent Performance Platform

About Sira AI Sira AI is building an AI Agent Performance Platform. The product helps teams observe, test, compare, optimize, experiment, and fix AI agents across every prompt, model, workflow, and tool change. The initial MVP helps AI teams upload or ingest agent runs, ins ...

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    Senior Full Stack Developer Reactjava Remote Jobs in Spain Job Search Guide, Trends and Insights