Empleos de backend engineer nodejs en Madrid

Schwarz Digits creates the technological foundation for digital sovereignty in Europe. As the IT and digital division of the Schwarz Group, we develop and manage the IT infrastructures for the retail divisions Lidl and Kaufland, as well as Schwarz Production and PreZero. At the same time, we operate as an independent provider in the external market to...

Trading 212 is seeking a Staff Backend Engineer to shape technical direction across teams. You will tackle problems that span services, with hands-on coding and architectural judgement, and you won't have direct people management responsibilities. You will own system boundaries, drive decisions, improve performance and data integrity, mentor engineers, and...

Haddock seeks a seasoned integrations engineer to own and scale data integrations, collaborate with customers, and drive architecture decisions. You will contribute to building observability, data pipelines, and AI-powered workflows within a fast-paced startup. This hybrid Barcelona role emphasizes autonomy and impact.You will work closely with product and...

Paradigma Digital en España busca un desarrollador backend con Python y Django para construir APIs rápidas, observables y escalables, optimizando desde la base de datos hasta la entrega continua. Se valora experiencia en Django Rest Framework, PostgreSQL, Redis, Celery y herramientas de observabilidad como OpenTelemetry y Datadog. Se trabajará en...

Cabify in Madrid is hiring Backend Software Engineers (Backend) to design and build AI-enabled distributed systems using Go/Elixir/Ruby, with a strong emphasis on quality, production readiness, and collaboration with Data Science.The role is fully on-site at our Madrid office (Calle de Pradillo 42). We value adaptability, curiosity about AI, and ownership of...

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. Our momentum comes from a simple idea: help teams...

Work Your Magic with us!Ready to explore, break barriers, and discover more? We know you’ve got big plans – so do we! Our colleagues across the globe love innovating with science and technology to enrich people’s lives with our solutions in Healthcare, Life Science, and Electronics. Together, we dream big and are passionate about caring for our rich...

BCNC Group está buscando un/a Senior Backend Developer Java para impulsar una plataforma logística global. Participarás desde cero en decisiones de diseño y evolución tecnológica, trabajando codo a codo con un responsable técnico dentro de un equipo ágil.Se requiere experiencia sólida en Java, Spring Boot y arquitecturas de microservicios, con foco...

Job ID: 31161202Company: Abbott LaboratoriesLocation: Spain - BarcelonaJob Type: Full timeCategory: Research & DevelopmentIndustry: HealthcarePosted Date: 2026-09-08Senior Software Engineer (Backend) ABOUT LINGO Lingo is building a cutting‑edge digital health platform that fuses continuous biosensor data, high‑performance backend engineering, and...

En VISEO contamos con más de 20 años de experiencia como consultora tecnológica implementando proyectos punteros. Nos diferenciamos por la participación en proyectos innovadores de soluciones Cloud, usando tecnologías Microsoft. Buscamos un/a Python Software Engineer (APIs & Azure) Con inglés alto. Tu rol será clave en el desarrollo, mantenimiento y...

Neara is looking for a Senior Software Engineer (Backend) to join our remote engineering team. You will design, build, and maintain backend services in Go and Python across a microservices architecture. Your role involves collaborating closely with clients and taking ownership of features from inception to deployment.The ideal candidate has 7+ years of...

Swiss Re in Madrid is seeking a Senior Back-End Engineer to design and develop cloud-native software solutions for Life & Health clients. You will collaborate with product owners, architects, and engineers to translate business needs into robust technological solutions aligned with the product roadmap.You will lead design discussions, review peers, and drive...

Invopop (YC W23) is seeking a Backend Product Engineer to own integrations end-to-end, from research to launch, based in our Madrid office. Ideal candidates should have strong backend experience, ideally in Golang, and a builder mentality. Your role will involve designing integrations, supporting customers, and contributing to our open-source...

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.Our momentum comes from a simple idea: help teams work smarter,...

Aircall, a unicorn AI-powered customer communications platform, is hiring a Senior Backend Engineer in Madrid. You will design, build, test, and deploy backend systems using TypeScript/Node.js with a strong emphasis on security, scalability, and performance.Collaborate with product managers, designers, and engineers to deliver end-to-end solutions, mentor...

JOIN KLEO AND BUILD THE FINANCING INFRASTRUCTURE FOR EUROPE'S COMPANIES Kleo (www.kleohub.com) is an AI-native platform that helps compaies find, match, manage, and monitor their entire financing stack: public grants, bank lending and private capital, through automated, end-to-end workflows. We replace a process that has traditionally depended on slow,...

Vic.ai in Madrid, Spain, is seeking a Senior Backend Engineer to own the integration platform that connects our customers' ERP systems to Vic.ai and push results back at scale. We’ll build and operate backend services with TypeScript/Node.js, Elixir/Phoenix, and Python, deployed on AWS, focusing on reliability and performance for a high-scale AI...

Huspy in Madrid/Dubai is seeking a Senior Engineer to help develop our Real Estate Agent Platform and Mortgage Broker Portal. You will work with product leaders and designers, owning key technical deliverables in a collaborative, innovative environment.You will implement with Kotlin/Spring Boot, PostgreSQL, and AWS, while partnering with Product, Design, and...

Talent Connect is seeking a Java Developer to join their multicultural engineering team focused on building a greenfield digital platform. You will design and develop APIs and microservices, working closely with distributed teams in an agile environment.This role requires over 5 years of experience in backend development with a strong focus on Java and...

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. Our momentum comes from a simple idea: help teams work...