Empleos de contract full-stack engineer en Madrid

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...

Jobgether SRL is seeking a Software Engineer (Frontend and Backend) based in Spain to contribute across frontend and backend development for reliable, scalable cloud applications. You will work with Java, JavaScript, Python, and modern web frameworks, with containerization and cloud deployment in AWS/Azure/OpenStack/OpenShift environments.You will develop...

Pillar is seeking a Full Stack Engineer to join their ambitious team in Barcelona. This role involves building the foundations of the startup, which has rapidly grown with significant investments.The ideal candidate will have proven experience in early-stage startups and mastery of technologies such as React and TypeScript. A strong ownership culture...

UST España & Latam is seeking a Senior Full Stack Developer (AI-Native) to join an innovative technology team. You will design, develop, and maintain scalable enterprise applications for a leading international banking environment, leveraging Java, Spring Boot, Hibernate, and Angular within a 100% remote setup in Spain.You will work with modern...

UST, a multinational digital technology leader, seeks a Senior Full Stack Developer (.NET & Angular) to join an international project in Madrid. You will design, develop, and maintain scalable applications while collaborating with cross-functional teams in an Agile environment.Required: 5+ years in software development, strong .NET/C#, Angular, SQL, REST,...

Descripción: En Second Window buscamos un/a Senior Full Stack Developer / Senior Python Developer con mínimo 6 años de experiencia profesional en desarrollo de aplicaciones empresariales y experiencia práctica trabajando con Python, bases de datos, procesos batch y Apache Kafka.Buscamos un perfil con sólidos conocimientos de Python, Oracle y...

Campmanyabogados busca un/a Full-Stack Developer en Barcelona para unirse a su equipo de IT en plena transformación digital. El candidato/a será responsable de garantizar el desarrollo y mantenimiento del ecosistema Salesforce.Se valorará experiencia en Apex y LWC, así como la habilidad para trabajar en aplicaciones externas. Se ofrece un entorno...

MaxIT Consulting – Max Corporate Group in Barcelona, Spain is seeking a Senior Full-Stack Engineer – AI-Native Applications to own end-to-end product delivery in a fast-growing European tech company building an AI-powered workforce platform for healthcare.You will work across frontend, backend, databases, and cloud, using TypeScript/React and Java/J...

As a founding member of our new Barcelona R&D Hub, you will help build the AI-powered precision medicine platform that transforms clinical and molecular patient data into insights that accelerate drug discovery and improve patient outcomes.To help drive this vision, we are looking for a curious, collaborative and solutions-focused Lead Full-Stack AI Product...

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...

Cheiron, headquartered in Los Altos, CA, is seeking a Full Stack Engineer, Applied AI to help build its core product and infrastructure. This role spans backend systems, AI workflows, RAG and search pipelines, APIs, and the customer-facing product itself.You'll craft end-to-end features across the stack, grounding AI outputs with verifiable citations for...

Bunch is building the operating infrastructure for private markets. As a Full Stack Engineer with a frontend focus in our Platform team, you’ll shape frontend architecture, contribute to backend services, and help maintain our Design System.You will ship end-to-end features that empower thousands of users managing billions in assets. You’ll collaborate...

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...

We're looking for aFull Stack Engineerfor one of our clients who enjoys building new products from the ground up and is eager to help shape AI tooling for the mobility industry.Work across the full stack to solve complex problems using incomplete and messy dataDesign and evolve canonical data modelsBuild pipelines to handle real-world data inputsDefine and...

GMV in Tres Cantos, Spain, is looking for a talented individual to join their team focused on developing web applications for the space sector. The role involves designing, implementing, and maintaining solutions supporting satellite control systems in a collaborative and agile environment.Successful candidates will have strong experience in JavaScript,...

Bullhorn Consultants Pvt. Ltd. is looking for a Full Stack Java Developer to join their team in Madrid, Spain. The role involves working closely with business DevOps teams and contributing to the Agile SDLC using modern technologies such as Java 8, Spring API, Docker, and Kubernetes.Ideal candidates will promote collaboration in challenging circumstances and...

Kenos Technology busca un Senior Full-Stack para participar en la construcción de una nueva aplicación web corporativa que sustituirá el CRM actual e integrará servicios y activos corporativos.Se valorará experiencia demostrable en Angular, Spring Boot y/o Node.Js, PostgreSQL y AWS; capacidad para trabajarde forma autónoma en entornos Agile/Scrum y...

Ayesa Digital is seeking a Senior Full Stack Developer / Analyst Programmer in Madrid. You will join a stable, long-term project in transport and logistics, contributing across the full stack with Java, Spring Boot and Angular, and collaborating closely with product and operations teams.You will work in a hybrid model in Madrid, using modern CI/CD practices,...

AXER Credit, a stealth fintech, seeks a strong full-stack engineer to own and ship features in a fast-paced early stage setting. You will collaborate with founders, product and design to deliver scalable web applications from concept to production.The role requires hybrid work with at least three days in the Málaga office, and offers competitive...

Explore Group is seeking a Full Stack Product Engineer to ideate, architect, and scale our enterprise AI platform for technical commercial teams in manufacturing. You will own both frontend and backend work, shaping product strategy, backend architecture, cloud infrastructure, and UI design to deliver customer value.We value practical builders with startup...