Empleos de backend engineer nodejs en Madrid

MindMatch busca un Senior Backend Developer para Valencia, formando parte de un hub de IA Generativa para el sector financiero. Diseñarás y construirás servicios backend, APIs y pipelines en Azure, con foco en rendimiento y seguridad. Trabajarás con Node.js o .NET 8, Azure OpenAI y herramientas de orquestación, en un entorno regulado y de alta...

En Findnido estamos construyendo la plataforma tecnológica que está transformando el sector de las viviendas industrializadas mediante software e Inteligencia Artificial. Tras más de 4 años de desarrollo, nos encontramos en una fase de consolidación y crecimiento, con un producto validado, clientes reales y una visión clara de...

Chainlink Labs is seeking a Software Engineer for the CCIP Protocol to design and maintain services that coordinate fast, fault-tolerant cross-chain transactions under adversarial conditions. You will join a team focused on reliability, security, and scalability across a remote-friendly environment.In this role, you will work with Go, Rust, or TypeScript to...

SKIDATA is seeking a Backend Developer to design and build tailored software integrations that connect third‑party systems with SKIDATA products. You’ll own projects from design through testing and documentation, and work with colleagues across regions.You’ll develop in C#/.NET, work with APIs and interfaces such as REST, SOAP, gRPC, RMQ and sockets,...

FYUL is seeking a Senior Back-end Software Engineer to join the Commerce Pillar. You will shape our commerce solutions by building reliable, scalable systems and collaborating with product teams. The role offers remote work options and an office in Riga, with flexible hours and strong emphasis on ownership and continuous learning. Ideal candidates have 5+...

Qaracter seeks a Java Backend Developer to join a technology team working on banking and financial projects. You will design, develop, test, and maintain backend applications and microservices using Java, Spring Boot, Kafka, and related technologies.You will collaborate with technical and functional teams throughout the lifecycle, deploying in enterprise...

N26 is seeking a Senior Backend Engineer - Engagement to build scalable backend systems for the Grow & Engage domain, shaping the customer journey from signup to premium membership. You will partner with product, tech leads and designers to translate user needs into robust services powering daily engagement. The role blends hands-on development with...

Job descriptionÚnete a Amaris Consulting y trabaja en plataformas de banca digital que dan servicio a miles de usuarios en todo el mundo. Forma parte de un equipo internacional, crece en un entorno ágil y desarrolla tu carrera dentro de un grupo global que valora la innovación, la colaboración y el talento.Tu misión & tu impactoComo Backend & DevOps...

OmniAccess in Palma de Mallorca is seeking a Backend/AI Engineer with 3+ years of experience to design and build cloud-native back-end systems. You will integrate AI capabilities, including LLM-powered features, into the product portfolio and work across the development team. Responsibilities include building robust micro-services, APIs, and data models;...

Tamarind Intelligence is seeking a Backend Engineer to join its core engineering team in a hybrid role based in Barcelona. You will design, build, and scale backend services using Python and FastAPI, while shaping data storage and processing across SQL/NoSQL systems.You’ll work with AWS, Kubernetes, and emerging AI tooling to push the boundaries of our...

Fusion Consulting, a global IT boutique, seeks a skilled backend engineer to design, develop, test, and maintain services in Rust. You will build REST APIs, model data, and contribute to frontend work with Vue.js/Angular, while supporting AWS Glue pipelines and ETL tasks. You will join a polyglot team, own features end-to-end, and communicate progress...

UST is seeking a Java Developer to join a highly innovative team working within a microservice-based cloud environment in the utility technology sector. You will design, develop, and support secure, scalable Java services, APIs, and integrations that connect critical business systems.The role emphasizes hands-on coding with Spring Framework, Hibernate/JPA,...

N26 is seeking a Backend Engineer in Lending in Barcelona to design, develop, test, deploy, and maintain scalable backend systems in a modern cloud-based microservices environment. You’ll work in a cross-functional fintech team, contributing to secure and well-tested code while staying current with technology trends and collaborating during Get Stuff Done...

Amaris Consulting is seeking a Senior Java Developer to design, develop, and operate scalable SaaS platforms with Java 11+ and Spring Boot. You’ll work in multidisciplinary squads across the full software lifecycle, emphasizing performance, security, and reliability.You will contribute to RESTful services, event-driven architectures, and CI/CD pipelines,...

LeoVegas is seeking a Staff Backend Engineer to lead the design and evolution of distributed systems powering real-time sports data, trading and pricing. You will provide technical leadership while delivering hands-on contribution to improve reliability and performance in a fast-paced, data-intensive sportsbook platform. The role emphasizes architecture...

Avantio, empresa SaaS valenciana, busca un perfil senior para liderar iniciativas tecnológicas impulsadas por IA y la construcción de harness de agentes de código. Participarás en el stack Node.js/TypeScript, con microservicios en Python o Go y bases de datos MongoDB, desplegando en Kubernetes y AWS. Ofrecen contrato indefinido a jornada completa y una...

Forsyth Barnes is seeking a Senior Backend Developer to design, develop and maintain scalable backend services in a fast-paced environment. You will contribute to architecture decisions, write clean, production-grade Go code, and collaborate with cross-functional teams including product managers and frontend/mobile engineers. The role emphasizes...

Infotel in Spain's Barcelona area is seeking a Senior Java Backend Engineer to join our Java Development Competence Center. Reporting to the Tech Lead, you will contribute to the design and development of high-quality software solutions for international clients. You will work on Java 17/21, Spring Boot, microservices, REST APIs, Kafka, and occasional...

Una empresa tecnológica en España busca un desarrollador back-end Python con experiencia en FastAPI o Flask para construir plataformas de software alineadas con la estrategia de IA. Se requiere al menos 5 años de experiencia, habilidad en sistemas distribuidos, APIs RESTful y pipelines de CI/CD. Un entorno flexible que fomenta el trabajo en equipo y un...

Moffatt & Nichol specializes in large complex waterfront infrastructure projects and is actively seeking a Medior Backend Software Engineer to join our Valencia or Algeciras office. You will contribute across the product lifecycle, building cloud-based applications with Angular and Java Spring Boot in a microservices ecosystem.You will collaborate with...