Empleos de remote senior backend java engineer en Barcelona

Airalo is seeking a backend engineer to drive the evolution of our global platform used by millions.You will lead backend services, build APIs, and contribute to a modular, service-oriented architecture while balancing speed with stability.We value deep PHP expertise, Laravel or Symfony experience, strong OOP, and solid SQL skills.Fluency in English is...

Talan Spain is seeking an experienced Backend Developer with strong Apache Spark and Scala expertise to join our distributed teams.You will develop and maintain backend solutions across the full lifecycle in an Agile environment, contributing to data platforms and business-critical applications.This role offers 100% remote work from anywhere, with...

About the opportunityYou will work in the Grow & Engage domain—the heart of the N26 experience. From initial signup to premium memberships and daily engagement, you'll work in teams delivering innovative features that serve our customers. Se anima a todos los posibles solicitantes a que se desplacen y lean la descripción completa del puesto antes de...

Lever, Inc. is seeking a Senior Backend Engineer for Payments & Fintech in Spain.You will rebuild and scale the financial systems at the core of a growing global platform, owning architecture for billing, subscriptions, and entitlements.You will lead migrations from legacy systems while ensuring correctness, reliability, and auditable financial...

Proton Technologies AG is hiring for a backend-focused role in our Payments team.You will build features across Proton products, work closely with product engineers, and shape scalable software architectures that power a general subscription ecosystem. A strong emphasis is placed on performance, security, and high-quality API design to enhance user...

Dow Jones in Spain (Catalonia) seeks a Senior Software Engineer to design, build, and operate reliable backend services and APIs powering product experiences and internal tools.You will lead complex features, improve performance and observability, and collaborate with cross-functional teams.You will work with Java, Spring Boot, and Python; AWS, Linux, CI/CD;...

¿Te apasiona el desarrollo backend y quieres participar en proyectos tecnológicos con arquitecturas modernas?¡Esta oportunidad puede ser para ti!En Vermont Solutions buscamos un/a Java Backend Developer con experiencia en Spring Boot, OpenShift y APIs RESTResponsabilidades Diseñar, desarrollar y mantener servicios backend con Java, Spring Boot y Spring...

Maisa, a Europe-based AI startup, is seeking a backend engineer to design, build and maintain backend services in Go and Python across a microservices architecture deployed on Kubernetes. You will own features end-to-end, work with clients and cross-functional teams, write clean, production-ready code, and contribute to architectural decisions. The role...

Fledge We are a boutique Talent search firm connecting exceptional Talent with the most innovative companies in the AI and software development industries across EMEA. Our clients are among companies with innovative products that have a positive impact on our societies, and we present them with a solution model between fine consulting and flexible...

Somos Métrica Consulting, una consultora de negocio, integración de sistemas, servicios y soluciones IT, comprometida con la Sociedad de la información y el desarrollo tecnológico, cuyos objetivos son un continuo crecimiento y convertirnos, para nuestros clientes, en un partner de negocio y tecnología cada día más sólido.Actualmente estamos en...

Desarrollador Backend Blockchain (Remoto) Nuestro cliente busca un Desarrollador Backend Blockchain para unirse a su equipo de ingeniería de forma remota.Serás clave en el diseño, desarrollo y mantenimiento de nuestras soluciones descentralizadas, trabajando en la arquitectura de contratos inteligentes, la integración con redes blockchain y la...

BarcelonaTech & Data – Backend /Full-time /RemoteOur mission and customers: We are creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. We are proud to be rated 4.8 on Trustpilot,based on 55,000+ reviews. Our cultureputs customer satisfaction at the core of what we...

Empresaconfidencial busca un/a Senior Backend AI Engineer para impulsar IA en productos ya en producción y desarrollar nuevas soluciones desde cero.Diseñarás servicios backend en Python, construirás pipelines RAG y integrarás APIs de LLM en entornos productivos, asegurando observabilidad y rendimiento. Trabajo 100% remoto desde España, con autonomía...

Playtomic seeks a Senior Backend Engineer to build robust APIs and scalable services. You will own domain decisions in a pod, collaborating with product and frontend teams to ship secure, high-performance backend systems.Strong Java Spring Boot, API design, and distributed systems experience are essential, with a focus on production health and AI-assisted...

UST – Company Overview More in details, UST is a multinational company based in North America, certified as a Top Employer and Great Place to Work company with over 35,000 employees all over the world and presence in more than 35 countries. We are leaders in digital technology services, providing large-scale technological solutions to leading global...

Oxigent Technologies ищет старшего Python-инженера в Барселоне для команды Code Foundations. Вы будете работать над критически важной инфраструктурой backend, микросервисами и коммуникациями между сервисами. Требуется...

En AD4 Octógono estamos contratando Buscamos un/a Senior Java Developer con al menos 5 años de experiencia en desarrollo Java para incorporarse a un proyecto basado en una arquitectura moderna de microservicios. El backend se desarrollará íntegramente con Java y Spring Boot, trabajando con APIs REST, PostgreSQL y servicios Cloud en AWS. Conocimientos...

Keonn, part of Novanta, is seeking a skilled Java Developer to build applications for our RFID product portfolio. You will develop Java applications to enhance, debug, and optimize our current infrastructure while implementing new features to meet evolving market demands. The ideal candidate has a CS or software engineering degree, 5+ years of Java...

Abacum in Barcelona is seeking a Senior Backend Engineer for the integrations team. You will move across languages and ecosystems, designing scalable integration solutions that connect ERP, billing, and HRIS systems. You will own data-heavy workflows, build low-code tooling, and collaborate with product, finance experts, and customers to translate complex...

About Nutrient At Nutrient, we're revolutionizing how the world works with documents. Our tools transform static files into intelligent, secure workflows, empowering businesses to innovate faster and smarter. Trusted by thousands of organizations across 80 countries, including Fortune 500 companies and public sector leaders, our platform supports nearly a...