Empleos de backend engineer nodejs en Madrid

Quintall is seeking a Senior Backend Developer to join the IT Digital Marketing team in Barcelona. You will design, build, and improve backend services, APIs, and databases to support our digital marketing and sales capabilities.You will work in an international Agile team, own backend solutions, contribute to architecture standards, and collaborate with...

Knowmad Mood busca un desarrollador/a senior backend Java para un importante cliente del sector bancario. Trabajarás 100% remoto y formarás parte de un equipo que impulsa proyectos con tecnología de vanguardia.Se valorará experiencia en Java (versiones actuales), Spring y Spring Boot, microservicios, arquitectura hexagonal y entornos cloud (AWS) con...

LeoVegas Group in Málaga is seeking a Senior Backend Engineer to drive the Sportsbook backend architecture. You will collaborate with Staff Engineers, validate architectural decisions, and shape backend solutions, contributing to planning and feature development.You will own and implement scalable microservices, ensure reliability, and work with multiple...

Signicat seeks a Senior Backend Software Engineer to design, develop, and maintain scalable backend systems for a fully remote engineering team. You will collaborate with engineers, architects, and product teams, contributing across the full development lifecycle.We value strong problem-solving, deep backend expertise, and experience with APIs, databases,...

Qonto is seeking a Senior Backend Engineer in Barcelona to help build the financial infrastructure that supports 750,000+ European SMEs. You will design and maintain highly scalable APIs and robust banking services that process real money in real time, with zero room for mistakes.You will join a mission-based team of 5–10 engineers, collaborating with...

A global e-invoicing platform is looking for a Backend Product Engineer in Madrid.Solicitar este puesto es sencillo. Desplácese hacia abajo y haga clic en "Solicitar" para ser considerado para esta posición.You will own integrations from research to launch, design and build solutions in Go, and engage with customers to influence product decisions.Ideal...

Revolut in Spain is seeking a Junior Backend Engineer to join our technology team. You will build backend services, APIs, and microservices, contributing to scalable infrastructure used by millions of customers.You should have Java expertise, 2+ years of backend experience, a STEM degree, and strong teamwork and communication skills, with English fluency....

AXPE Consulting está ampliando su equipo y busca 4 Backend Developers especializados en Python para trabajar en un proyecto estratégico dentro de una gran entidad financiera internacional. Te incorporarás a un squad técnico de desarrollo backend y microservicios, con sistemas productivos de alta criticidad y estándares enterprise.La posición implica...

Archteam is seeking a founding engineer to join the CTO and CEO, owning large parts of the backend, our agent infrastructure, and the data layer. You will ship to customers from day one and help define the architecture and product direction.You will work on Postgres-backed services, autonomous agent systems, and data pipelines that feed signals and customer...

Verisure in Madrid is seeking a Senior Software Engineer to shape the backend platform using Java, Spring Boot and Mongo DB. You will own design and delivery of robust services and help drive best practices across the team.You will mentor colleagues, collaborate with product and QA, and contribute to AI-enabled engineering initiatives while growing toward a...

Duetto Research is seeking a Senior Software Engineer (Backend) to join a fully remote engineering team. You will design, develop, and maintain scalable backend systems powering innovative products, collaborating with engineers across disciplines.The role emphasizes delivering high-quality software in a remote setup with occasional meetups. You will...

Aave Labs is hiring a Staff Backend Engineer to build the backend infrastructure behind Aave App, a consumer savings app that makes onchain financial products simple, secure, and intuitive.The role focuses on the systems between blockchain protocols and consumer experiences, including accounts, wallet services, transaction orchestration, indexing, and APIs...

ERNI is seeking a senior backend engineer to design, develop and maintain a Python-based MCP backend that links Enterprise Knowledge Graphs with AI agents and cloud data platforms. You will optimize SPARQL queries, scale APIs and extend semantic model compilation while ensuring security and reliability in a cloud-native setup.You will work in a hybrid model...

Lansweeper in Alicante is seeking a Senior Software Engineer who writes production-quality Go or Rust and designs distributed backend systems at scale.You will work on AI-assisted development, integrate AI/ML capabilities into product workflows, and mentor peers while collaborating with a 40-engineer Spain team. This hybrid role offers three days in the...

Triptease is hiring for a remote, backend-forward engineer. You will work across the stack with Type Script, Node.Js and React, operating in a small squad that values collaboration and trunk-based development. The role emphasizes production-readiness, testing, and continuous delivery on Google Cloud Platform and Kubernetes.Based remotely in the UK, Spain or...

A leading technology firm in Barcelona seeks a Senior Web Developer with at least eight years of experience in Microsoft technologies. You will be developing backend components and APIs while contributing to project improvements and best practices. The role offers hybrid working conditions, covering certifications, and various perks such as health insurance...

Seqera seeks a Senior Software Engineer to own the backend layer that turns computational capacity into configurable, billable services across AWS, Azure, GCP, Kubernetes, HPC schedulers, and GPU runs. You will shape an application layer that powers Seqera Intelligent Compute and its platform integrations.You’ll collaborate with product, platform, and...

Mercor is seeking a Senior Software Engineer for a fully remote, contract role. The position offers up to $210/hour with a commitment of 20 hours per week. You will evaluate and enhance AI model capabilities, collaborating with research teams while working asynchronously to meet deadlines.The ideal candidate has 5+ years at top US tech firms and a track...

Luxoft Spain is seeking a skilled Java backend engineer to join our development team working on sophisticated software for a global orthodontics leader. You will design and develop web systems, contribute to API services, and help integrate internal systems across the manufacturing process.The role requires 5+ years of Java experience, deep knowledge of...

Se busca programador backend remoto con experiencia en C#, Java o Golang, APIs REST, bases de datos y Docker. Se valora el alemán.