Empleos de senior full-stack engineer api en Madrid

A leading digital agency in Barcelona is seeking a skilled backend developer to design scalable systems and build powerful APIs leveraging Java and Spring Boot. The ideal candidate will have 5+ years in backend development, substantial experience with RESTful and GraphQL APIs, and hands-on skills in microservice architectures. The role offers a hybrid...

CGM Clinical Espana SL is seeking a Senior Quality Engineer (Automation & AI) to design and implement testing strategies for modern health tech applications. You will develop Python-based automation frameworks, perform API and UI tests with Playwright, and ensure CI/CD integration while collaborating with cross-functional teams in a bilingual...

BESTSECRET Group in Spain is seeking a (Senior) SAP Integration Engineer to shape our next-generation SAP integration architecture, driving API-first, event-driven, and cloud integration initiatives across our enterprise systems. You will design, implement, and operate modern integration solutions within the BESTSECRET SAP landscape, develop interfaces with...

Please submit your CV in English and indicate your level of English proficiency.Mindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.What This Opportunity InvolvesYou'll create challenging coding test...

Longtail Technologies, Inc. is seeking a senior backend/full-stack engineer to help build and evolve Sightline, our conversational analytics and intelligent alerting platform.You’ll own features end to end—from customer problem through to production—with a focus on reliable, observable systems and AI-native workflows. This backend-focused role requires...

Location:Barcelona and surrounding areaWorking model:Hybrid - 4 days remote, 1 day per week in our Barcelona officeOffice:KPS Iberia, C/ Pau Claris 162-164, 08037 BarcelonaAbout KPSKPS is a global consulting and technology company delivering digital transformation and e-commerce solutions for leading international clients. At KPS Iberia, you will work in an...

Otto Group one.O Spain is seeking an experienced Software Developer in Málaga to contribute across the full product lifecycle. You will collaborate in a cooperative team, drive quality, and take initiative and responsibility in delivering robust Java applications using Spring Boot and API services. Key requirements include at least 4 years of software...

EY GDS Spain is seeking a Senior Full Stack Developer with strong Angular and Spring Boot experience to design, build, and maintain enterprise web apps. You will ensure accessibility with WCAG 2.1 AA and collaborate with global teams to deliver scalable, secure solutions.You will drive frontend architecture, mentor juniors, and contribute to CI/CD in a...

Findnido está buscando un Ingeniero/a de Software Full Stack Senior para liderar la próxima fase de crecimiento tecnológico. Serás el primer Tech Lead y combinarás desarrollo hands-on con responsabilidad técnica, estableciendo estándares y dirigiendo decisiones de arquitectura a medida que la empresa escala.Trabajarás en un equipo de 20 personas,...

EY GDS Spain is seeking a highly skilled Full-Stack Engineer (Python and Angular) to build modern web applications and actively explore AI features such as LLM APIs, embeddings, and RAG workflows to enhance real‑world products.Join a hybrid work model with opportunities for career development, collaboration with product, design, and AI teams, and a culture...

Portless is seeking a senior full-stack engineer to own and scale major pillars of our global supply chain platform, delivering end-to-end features for the B2B portal and logistics engine.You’ll design heavy-duty API integrations with OMS/WMS/TMS, build in a serverless, cloud-native stack, and drive resilient architectures in a remote-first, globally...

Davidson Consulting España busca un Senior Full Stack Developer con sólidos conocimientos en Inteligencia Artificial para desarrollar e integrar soluciones de IA en entornos de producción. Trabajarás en un equipo Agile Scrum, colaborando con científicos de datos e ingenieros de IA, enfocando el desarrollo backend y la IA de extremo a extremo.Se...

Second Window busca un Senior Full Stack Developer para impulsar proyectos financieros y bancarios. Se requiere dominio en Java Spring Boot, Angular y bases de datos SQL, con experiencia en CI/CD, microservicios y DevOps. Se valorará IA integrada en flujos de entrega.La oferta es 100% teletrabajo desde España, con contrato indefinido desde el primer día y...

Vermont Solutions busca un/a Desarrollador/a Full Stack Java & Angular en Madrid con 2-3 años de experiencia para una nueva solución tecnológica. Trabajarás en backend con Java 17 y Spring Boot 3.x y en frontend con Angular y TypeScript, diseñando servicios REST y UI modernas. Se valorará experiencia en pruebas, SQL Oracle, Git y prácticas de calidad...

AI-Driven Full-Stack Engineer for an insights platform, designing data pipelines, AI/ML workflows, and web applications.Requires Python, AWS, and Databricks experience.

Ingram Micro Inc. is seeking a Senior Technical Support Engineer in Barcelona, Spain, to provide expert-level technical assistance. The role involves collaborating with various teams to solve complex issues and enhance customer satisfaction.Applicants should have 4–7 years of experience in technical support, a strong understanding of SaaS platforms, and...

Pleo in Spain is seeking a Senior Backend Engineer for the Data Serving team, building the boundary between raw product data and consumers, including internal dashboards, AI agents, and customers. You'll own APIs, ensure low latency, collaborate with Data Engineers and Kotlin-based services, and focus on reliability, security, and scalable data...

Senior Full Stack Engineer - AI Carbon Intelligence PlatformFull-timeIFS is a billion-dollar revenue company with 7000+ employees on all continents. Our leading AI technology is the backbone of our award-winning enterprise software solutions, enabling our customers to be their best when it really matters–at the Moment of Service. Our commitment to internal...

AI Engineer / Full Stack Developer - AI Reporting & Insights - Barcelona or Warsaw basedMadrid, Spain Warsaw, Poland Full time R- Job Description Are You Ready to Make It Happen at Mondelēz International? Join our Mission to Lead the Future of Snacking. Make It Uniquely Yours. You provide software and application knowledge to support implementation of the...

Oxigent Technologies busca un/a Senior Automation QA para su equipo en Barcelona, dentro de un proyecto internacional de procesamiento y distribución de datos entre sistemas en el sector tecnología para la aeronáutica.Serás responsable de impulsar la calidad del software a lo largo del ciclo de desarrollo, definiendo estrategias de testing y...