Empleos de remote senior backend java engineer en Madrid

Pluxee invites a Senior Backend Engineer to join the Payments Squad, building resilient, high-volume backend services for global money movements. You will own critical components, implement robust tests, and collaborate with frontend and product teams. You thrive in distributed systems, apply AI-assisted development, focus on data consistency, idempotency,...

At Roche you can show up as yourself, embraced for the unique qualities you bring. Our culture encourages personal expression, open dialogue, and genuine connections, where you are valued, accepted and respected for who you are, allowing you to thrive both personally and professionally. This is how we aim to prevent, stop and cure diseases and ensure...

Factorial is seeking a Senior Software Engineer to join our Data Ops team. You will own the backend architecture of internal sales, invoicing, and billing applications, building resilient, scalable APIs and cloud workflows that power finance and customer experiences. You’ll collaborate with design and product, integrate payment platforms like Stripe or...

A leading super app company in Spain is looking for a Backend Staff Engineer to drive technical standards across their consumer domain. This role involves leading backend engineers, contributing to architecture decisions, and mentoring junior developers. The ideal candidate has at least 10 years of experience in backend engineering with NodeJS and...

Capitole busca un/a Senior Backend Engineer con amplia experiencia para unirse al equipo en Barcelona. Desarrollarás el backend de la plataforma, creando APIs REST seguras e integraciones con sistemas internos y de terceros. Trabajarás con Node.js/TypeScript, PostgreSQL y Redis, en una arquitectura API-first sobre Azure, con prácticas DevOps y seguridad...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Software Engineer – Future Hiring Program based in Spain.Join a forward-thinking engineering team delivering high-impact software solutions for global enterprise clients across diverse industries. As part of a...

Stark Future SL is seeking a Senior Backend Engineer to design, develop, and operate production web services that power our AI-enabled backend. You will own critical components and collaborate across product, AI, and operations teams in a fast-moving Barcelona-based environment. Join a ambitious team building premium electric motorcycles and a scalable...

Enginy, a Barcelona-based startup, is seeking a Backend Engineer to own the engine behind our AI-native GTM platform. You will design, build, and operate high-throughput data pipelines and integrations with the tools our customers use, from design to production to observability. We require 5+ years of backend experience, strong TypeScript/Node.js skills,...

Trading 212 is seeking Senior Backend Engineers to own backend services end to end across a microservices platform. You will design, build, test, deploy and operate production systems, collaborating with product and engineering teams to turn complex requirements into durable solutions. You’ll work with Java, Go, Node.js and databases, focus on performance,...

Nuitée is hiring Senior Product Engineers to join Connect, the heart of our platform. Connect unifies hotel supply into a single clean API that partners build on, enabling real-time pricing and inventory at scale. You’ll own the full lifecycle, move fast from idea to production, and ship iterations that matter with measurable impact on partner traffic and...

Allianz Partners is seeking a Backend Engineer in Advanced Analytics (DA3) to join our central AI team and build reusable AI foundations and production-grade AI services on a global scale. You will design, ship, and operate cloud-native systems with Docker/Kubernetes, Azure services, and CI/CD pipelines, working across ML engineers and DevOps to raise our...

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...

Company: B. Braun Medical, S.A. U. Job Posting Location: Barcelona, Barcelona, Spain Functional Area: Information Technology Working Model: Hybrid Requisition ID: 13544 Senior ERP Backend Engineer - Microsoft Dynamics 365 Finance & Supply Chain Management / ERP Platform1. Role PurposeThe Senior ERP Backend Engineer will design, build, extend, integrate, and...

Trading-21 is seeking Senior Backend Engineers to join Europe’s fastest-growing mobile broker. You will own backend solutions end to end within a microservices environment, translating complex problems into durable, production-ready services. Work across teams to design for performance, scale and data integrity. You’ll contribute to a modern stack (Java,...

Allianz Partners in Madrid is seeking a skilled Backend Engineer to join their Advanced Analytics team. The role offers a chance to build AI foundations and services, collaborating closely with cross-functional teams. The ideal candidate has over 5 years of backend engineering experience, proficiency in Python and cloud-native solutions with Docker and...

Playtomic is seeking a Senior Backend Engineer for the Payments team. You will develop robust payments solutions, maintain APIs, and work with third-party gateways to ensure secure, scalable transactions. A strong focus on performance and code quality is required. You will collaborate with cross-functional teams, drive API design, and help shape payment...

WayOps busca un Senior Backend IA Scraper para liderar extracción y procesamiento de datos a gran escala. Participarás en el diseño y desarrollo de soluciones que combinen scraping, backend y bases de datos, exponiéndolos a través de APIs y herramientas internas. Se valorará experiencia en IA aplicada a datos, pipelines de datos y entornos...

Quipu, part of TeamSystem, is hiring a Senior Backend Developer (Ruby on Rails) to evolve our SaaS platform used by thousands of customers daily. You will join a skilled Product and Technology team building backend features, improving scalability, and delivering robust services in a fast-paced, collaborative environment. You will work across the stack with...

Ciklum in Málaga, Spain, is seeking a Senior Python Engineer to join a cross-functional team building backend features. You will implement AI on the client's internal platform, support high-quality code, and collaborate across planning, development, testing, and deployment. The role emphasizes PostgreSQL design, Alembic migrations, and REST API work, with a...

IFS in Madrid, MD, ES is seeking a Senior Software Engineer, AI Agents to build the AI-driven backend powering enterprise workflows on site in Madrid. You will develop the session and memory model, retrieval, and agentic flows for multi-step work. You will implement multi-tenant SaaS capabilities, ensure secure integration with API gateways, and optimize for...