Empleos de senior full-stack engineer reactnode ts automations en Madrid

Santander is seeking a Senior Full Stack Engineer based in Madrid to design and operate secure, scalable applications and APIs for the Knowledge Base Platform, collaborating with AI, Data, Cloud, DevOps, Product, and Security teams. You will work on production-grade capabilities for RAG, GraphRAG, semantic search, and AI agents, using FastAPI, React, Python,...

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...

Affinist is a remote-first company hiring a Senior Full-Stack Software Engineer for the Repayments UX.The role is based in Spain and visa sponsorship is possible, with the team located across Europe in the same time zone.You will own quarterly goals, collaborate across product, design, and analytics, and help ensure reliability and growth at scale.Base pay...

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...

Albertine is seeking a seasoned full stack engineer to ship features across our TypeScript platform. You’ll shape API contracts, implement service and data work, and build the React UI members and agents actually use. Both halves must be solid in data choices and UX that feels finished. You’ll work across memberships, bookings, and billing with a focus...

Jobgether, based in Spain, is seeking a Senior+ Full-Stack Engineer to build a developer infrastructure platform enabling AI applications to connect with external APIs. You will own features from design to deployment across backend, APIs, runtime, and frontend, while collaborating with customers in a remote-first startup. Role emphasizes autonomy,...

Frontiers in Madrid is seeking a full‐stack .NET Engineer to join the Researcher Profiles Service team, building a global‐scale academic data platform with .NET Core/Framework and Vue.js. You will own high‐impact projects, collaborate across product, architecture and cross‐functional teams, and drive end‐to‐end delivery. The role emphasizes...

E‐Frontiers is seeking a Senior or Lead Full-Stack Developer to join an international project. The role is fully remote from Spain with occasional travel to Milan for 2-3 days every few months. Italian is mandatory for this position. 12‐month duration with potential extension. Holders of strong AWS, Terraform/CloudFormation, Docker, Node.js, React, Jest...

IFS is seeking a Senior Full Stack Engineer to help shape and deliver a cloud-based AI carbon intelligence platform. You will lead both front-end and back-end work, influence architectural decisions, and drive high-quality software in a dynamic, diverse environment. You will collaborate across Product, AI, Platform Engineering, and other teams, champion...

Hiberus, una compañía tecnológica con sede en Madrid, busca un Senior FullStack Engineer con experiencia en Node.js y React para unirse a su equipo. Se valoran habilidades en microservicios, TypeScript y comunicación en inglés. Te unirás a un entorno colaborativo, con formación continua, horarios flexibles y un enfoque en innovación. Ofrecemos...

We are looking for a Senior Full-Stack Engineer with a strong backend lean to join the team that builds and evolves the platform powering this experience. NET system with Vue/Nuxt frontends, SQL Server-heavy data operations, Github/Azure DevOps-driven deployments, and async integration workflows connecting multiple internal services. This is a senior role...

We are looking for a Senior Full-Stack Engineer with a strong backend lean to join the team that builds and evolves the platform powering this experience. You will work on the Research Topic Management (RTM) application — a distributed .NET system with Vue/Nuxt frontends, SQL Server-heavy data operations, Github/Azure DevOps-driven deployments, and async...

Senior Software Engineer, Outbound Capabilities Madrid Office Aircall is a unicorn, AI-powered customer communications platform used by 22,000+ companies worldwide to drive revenue, resolve issues faster, and scale customer-facing teams. We're redefining customer communications by bringing voice, SMS, WhatsApp, and AI together into one seamless workspace....

Can you imagine building AI-powered products that transform how business teams generate strategic insights? Join our expert team to work on a Pharmaceutical sector product, contributing to the development of an AI platform that transforms enterprise knowledge into intelligent decision support. You will apply your knowledge of LLMs, RAG, knowledge graphs and...

Spain | Remote | Senior Engineering Opportunity MaxIT Consulting – Max Corporate Group is looking for a Senior Software Engineer – Digital Banking & FinTech Products to join a fast-growing New York fintech company building banking and payment products for US prediction markets and regulated gaming. The company develops consumer-facing financial products...

A leading recruitment agency is looking for a Senior Consultant specializing in AI, Semiconductor, and Embedded Systems in Madrid. The role involves taking ownership of AI solutions from concept to production, building intelligent systems, and collaborating across teams to deliver robust AI solutions. Ideal candidates should have strong Python skills,...

Solera is seeking a Lead .NET Developer in Madrid with 10+ years of experience across .NET, Python, and React/Angular. You will lead full-stack development, architect scalable solutions, and drive DevOps practices to deliver high-quality software. The role requires collaboration with Product Management, Business Analysts, and cross-functional teams in an...

Spain | Remote | Senior Engineering Opportunity MaxIT Consulting – Max Corporate Group is looking for a Senior Full-Stack Engineer, Consumer Fintech to join a fast-growing New York fintech company building banking and payment products for US prediction markets and regulated gaming. The company develops consumer-facing financial products covering account...

Responsibilities * Lead the design, development and operation of new capabilities across our SaaS products. * Make architectural decisions that balance immediate business needs with long‐term scalability and maintainability. * Work closely with product, engineering and business leadership to shape product roadmaps and technical strategy. * Identify and...