Empleos de backend engineer nodejs en Barcelona

Help Us Build The Future of Travel At Airalo, we're making it easier for people to stay connected wherever they travel. As the world's first eSIM store, we help millions of travelers access affordable mobile data in 200+ countries and regions around the world. Your Next Destination Location: Remote, anywhere in Spain or the UK. Contract: Spain: Full-time,...

Se busca ingeniero backend con experiencia en Python para compañía SaaS en Barcelona. Desarrollará servicios, diseñará soluciones técnicas y mejorará sistemas complejos en un entorno de crecimiento.

Longtail Technologies is seeking a Senior Product Engineer: Full-stack with 80% backend to help build our conversational analytics and intelligent alerting platform. You will own features end to end, from problem framing to production, with a focus on reliability and AI-driven workflows. The role requires 7+ years of engineering experience, production SaaS...

Proton is seeking a skilled backend engineer in Barcelona to develop features for Proton's ecosystem and payments stack. You will work with frontend and mobile teams to craft scalable services, improve performance, and uphold security standards.You will join a global team with offices in Barcelona and elsewhere, contributing to a privacy-first internet. The...

Sobre el puesto Buscamos un Senior Backend Engineer hands-on para unirse a nuestro equipo de Inteligencia Artificial. Tu objetivo principal será diseñar, construir y operar servicios en Python que lleven modelos de IA y LLMs a un entorno de producción real, seguro y de alta disponibilidad a nivel internacional. Buscamos a alguien que disfrute resolviendo...

SEREM Consultoría Empresarial busca un Backend Engineer especializado en IA sobre Azure para impulsar soluciones de IA en entornos de producción. Trabajarás en colaboración con científicos de datos e ingenieros de IA para diseñar e implementar APIs escalables y servicios en la nube en Azure.La posición es híbrida en Barcelona, con 3 días en oficina...

Who We Are WhereTo is a business travel startup from San Francisco that evolved into an agile development and design studio within the Flight Centre family. We build travel solutions used by some of the largest companies on the planet - we have just one goal: making business travel better for everybody. WhereTo provides an AI-powered travel platform for...

N26 Inc. is seeking a Backend Engineer for the Payments domain in a hybrid role based in Barcelona or Berlin. You will contribute to high-volume payment and card transaction systems and work with a diverse, international team. Key responsibilities include designing, building, testing and maintaining services, focusing on scalable microservices, security and...

Capitole is seeking a Backend Developer with Python and AWS to join a strategic platform team responsible for user, tenant and access management in a cloud-native ecosystem. You will contribute to disaster recovery capabilities and resilience in a regulated environment. You will build IaC with Terraform/OpenTofu, develop backend services in Python,...

Rain is looking for a Senior Software Engineer in EMEA. This remote position involves managing backend platform areas, including API integrations with 3rd-party vendors. The ideal candidate has at least 5 years of experience, is proficient in backend languages like Go and Python, and skilled in creating scalable, reliable systems. Responsibilities include...

Oxigent Technologies busca un Senior .NET Developer para participar en la evolución de una plataforma de gestión empresarial en Barcelona. Te enfrentarás a una arquitectura moderna basada en microservicios y hexagonal, con énfasis en backend .NET y apoyo ocasional al frontend con Angular/TypeScript.Requisitos: 7-10 años en C# y .NET, experiencia en API...

Qualifyze seeks a Senior Backend Engineer to join the Engineering team, shaping backend architecture and delivering scalable services that support our global audit network.¿Es este su próximo empleo? Descúbralo leyendo la descripción completa a continuación y no dude en enviar su candidatura.You’ll collaborate across product, DevOps, and design to...

Our Technology team drives the evolution of our Technology, Engineering, Data, Product and User Experience functions. With a keen focus on delivering cutting-edge solutions, we shape the digital landscape for our customers, readers and users. From revolutionizing visuals to optimizing tools and harnessing the power of data, mobile, video and social...

Hitachi Energy is seeking a skilled .NET Backend Developer to design, develop, and maintain robust backend systems and APIs in a Barcelona-based role. You will collaborate with cross-functional teams to deliver scalable services using C# and the .NET platform.The ideal candidate has strong C#, experience with EF Core, RESTful APIs, and relational databases,...

A technology recruitment platform is seeking a Backend Engineer to own backend systems for a crypto and self-custody platform. This role involves designing, implementing, and operating scalable backend services using Go and TypeScript, while ensuring high code quality and performance. Candidates should have experience with Kubernetes and messaging...

TransPerfect is seeking a Software Engineer to join the TechOps group in a global team spanning Barcelona, New York, London, and more. You will contribute to the quality, development, and execution of software products across web and mobile platforms.You will collaborate with product managers, QA, and other developers to deliver secure and scalable...

Overview As a Backend Engineer at N26, you will develop and maintain a Kotlin/Spring Boot-based microservices platform that powers secure, scalable digital banking services. You will work in cross-functional squads with high autonomy to deliver high-quality software and stay current with technology trends. You’ll contribute to safe, efficient operations...

Build AI-powered product capabilities that automate, predict, and simplify user workflows Spendesk is looking for a Backend Software Engineer (IC3) to join our AI & Data Products squad and help build the next generation of product features powered by AI, ML, and intelligent automation. This is a hands‑on backend role focused on turning predictive models,...

New Relic is building a distributed tracing pipeline team to ingest, analyze, and publish traces at scale. You will help design and maintain a high‑throughput backend, collaborating with product and experience teams to shape the roadmap for our observability platform.You’ll work with Kotlin, Java, Kafka, Redis and cloud services, applying agile practices...

In this role you will build scalable backend systems for the Grow & Engage domain, shaping the customer journey from signup to premium membership. You’ll partner with product, tech leads and designers to translate user needs into robust services that power daily engagement. The position blends hands‑on development with architectural exploration in a...