Empleos de backend full stack engineer en Madrid

Card & Payment Jobs is seeking a hands-on AI Full Stack Engineer to help build a new SaaS ledger platform for an international fintech business. You will work end-to-end on design, development, testing, deployment and production support, applying AI coding tools in daily workflow. You'll use AI coding tools as part of your daily workflow, while taking full...

OpenNebula Systems in Madrid-based HQ and fully remote, international team, is seeking a Senior Full-Stack Developer to advance the OpenNebula cloud management platform with a strong front-end focus while contributing to back-end when needed. You will own features end-to-end, work in Linux environments, collaborate across teams, and help evolve edge and...

Mitek is hiring a software engineer in Spain to work on the Trust Platform and other identity solutions. You will contribute to front-end and back-end development, leveraging React, Go, and cloud services to deliver secure, scalable digital identity features. The role emphasizes data-driven, innovative problem solving, collaboration in a virtual-first...

A leading Contract Research Organization is seeking a Full Stack Developer to join their Process Improvement team in Madrid. The role involves architecting and maintaining applications using modern technologies like React, Python, and Azure. You must have a Bachelor's in Computer Science, 5+ years of software development experience, and expertise in Azure...

EPAM Systems is seeking a Senior Full Stack Engineer to join our team in Madrid, specializing in financial services technology. This on-site role focuses on designing, building, and maintaining robust, scalable applications using Java and React, while collaborating with cross-functional teams. The ideal candidate will have a strong background in both backend...

Otto Group one.O is the central, powerful partner for strategy consulting and technology. With around 1,000 colleagues worldwide in areas such as consulting, software development, SAP and data intelligence & AI, we provide strategic advice and design, develop and operate digital end-to-end solutions along the entire value chain. We shape the digital...

Mitek is hiring a software engineer in Spain to work on the Trust Platform and other identity solutions. You will contribute to front-end and back-end development, leveraging React, Go, and cloud services to deliver secure, scalable digital identity features. The role emphasizes data-driven, innovative problem solving, collaboration in a virtual-first...

Brayton Global is seeking a Senior Full-stack Engineer to develop and maintain enterprise apps, modernise legacy systems, and integrate AI tools into development workflows. Responsibilities include designing full-stack solutions, leveraging AI assistants, and ensuring secure, scalable deployments across MCP-enabled platforms. Strong knowledge of Java/Spring...

Airbus Defence and Space SAU is seeking Simulation Software Engineers in Getafe to develop HMI software for simulation platforms. You will work on GUI components, derive requirements, and design architectures for new simulator features within an agile environment. The role requires full-stack web skills, GIS tool proficiency, and experience with Qt/HMI...

Company Overview At Bridgenext, we engineer Growth Operating Systems. Most enterprises have spent millions on their revenue stack and still aren't seeing the growth they expected. They have tools that function, but no system that wins. We help growth-hungry companies close that gap by turning fragmented platforms, siloed teams, and disconnected data into one...

RocaSalvatellA, consultora líder en transformación digital, busca un/a Full Stack Developer para el equipo AI Solutions. El rol implica modernizar aplicaciones heredadas, diseñar arquitecturas y desplegar soluciones en Azure con contenedores y CI/CD, usando IA como motor principal de ingeniería. Se valora experiencia en migraciones, uso de agentes IA y...

Applus IDIADA is hiring senior software engineers to build AI-enabled automotive applications. You will own features end-to-end, spanning backend services written in Java/Spring Boot and Python, and modern frontends with Angular. The role emphasizes production-grade quality, cloud-native deployment, and collaboration in a fast-paced, multicultural team....

Blend is seeking a Full Stack Developer to own end-to-end technical delivery for a key product/module. This hands-on role balances backend strength with frontend experience and spans cloud, data, testing, and AI-enabled workflows. You will lead backend development using Python/Flask, collaborate on React/Type Script frontend, and own cloud deployments in...

Alpaca is hiring Senior Full-stack Engineers to design, build, and operate scalable distributed systems powering global investing. You’ll own projects end-to-end—from concept and coding to production deployment and maintenance—in a fast-moving, highly autonomous environment. Join teams like Trading Platform, Internal Tools, and Operations Automations;...

Krell Consulting & Training, S.L. busca un Desarrollador Full Stack con foco en Angular para un proyecto en Barcelona. Participarás en la integración con APIs REST, discutirás arquitectura y aportarás soluciones técnicas, trabajando en un entorno híbrido. Se requieren al menos 4 años en desarrollo de software, experiencia con Angular 2+, NgRx/RxJS,...

Luxoft in Spain is seeking an experienced Software Developer to modernize a mission-critical PMS used by investment professionals. The role involves transforming a mature WPF-based desktop platform into a scalable, API-enabled ecosystem across desktop, web, and data layers. You will upgrade .NET, WPF, and DevExpress apps, reduce technical debt, and optimize...

Owen Thomas | B Corp™ is seeking a Senior Staff Full stack Engineer on a 12‑month contract. This fully remote EU‑based role centers on Rust and Java for backend, with React and Python as secondary stack. The contract is Outside IR35 and pays £500-600 per day. You will help shape backend services, contribute to architectural decisions, and collaborate...

Radisson Hotel Group is hiring a Full-Stack Developer & Data Engineer to support Pulse, our BI platform for hospitality. Hybrid role: web/desktop with Angular/TypeScript, React for mobile, and ETL pipelines powering analytics in ClickHouse Cloud. Responsibilities include building features, ETL design, data modeling, SQL optimization, and supporting users...

UST España & Latam is seeking an experienced Developer Analyst - Full Stack Developer to join our team in Spain. The role requires 5+ years designing, developing, and maintaining scalable web applications with strong Angular, Node.js, Spring Boot, and OpenShift expertise. You will design, develop, and maintain full-stack solutions, work across frontend and...

Krell Consulting busca incorporar un/a Full Stack / Frontend Engineer Senior para un proyecto de integración de plataformas ubicado en Málaga. El perfil debe aportar más de 10 años de experiencia y ser capaz de liderar equipos en entornos Cloud First y Agile. La posición implica desarrollo end-to-end, especialmente en frontend con React, Type Script y...