Empleos de senior java backend engineer en Madrid

Pleo is hiring a Senior Backend Engineer to join the Data Serving team, owning the boundary between raw product data and consumers including internal teams, AI agents, and customers. You will build the API surface and a fast serving layer with strict latency requirements.You’ll work with a stack including AWS/GCP, Docker, Kubernetes, BigQuery, PostgreSQL,...

Shakers busca un/a Senior Backend Engineer especializado en Python para unirse a su unidad de producto como parte del equipo, trabajando en una modalidad freelance de alta disponibilidad.El rol implica construir servicios en Python con FastAPI, diseñar sistemas distribuidos basados en colas, gestionar PostgreSQL y colaborar con integraciones SaaS. Se...

Fever is recruiting a backend engineer to build geo‑localized user platform services with a focus on data residency, multi‑region reliability and privacy compliance. You will contribute to a Python‑based stack, CI/CD pipelines, and cloud infrastructure.Within three months you design and implement end‑to‑end features, discuss architecture, and...

Softtek busca un Desarrollador Senior Python para fortalecer la capa backend, con al menos 4 años de experiencia. El rol se centra en crear soluciones robustas, escalables y seguras, con énfasis en APIs y servicios. Se valorará experiencia en ciberseguridad y buenas prácticas de desarrollo.Modelo híbrido con oficinas en Madrid y trabajo en equipo,...

Cloudbeds, a fully remote-first hospitality platform, is seeking a Senior Backend Engineer to shape scalable backend architecture and deliver high-performance services for customers worldwide. You will work across PHP and Java ecosystems, utilize Laravel/Symfony, MySQL, Docker, Kubernetes, and AWS, and collaborate with global teams to innovate and improve...

A technology recruitment firm is looking for a Senior Back-end Engineer with PHP expertise to develop and enhance payment systems. This remote role offers the opportunity to work in a dynamic environment, focusing on scalability and innovative solutions. Ideal candidates will have over 5 years of PHP experience and knowledge of Domain-Driven Design and Agile...

Una plataforma SaaS en crecimiento busca un/a Senior Backend Engineer que diseñe y desarrolle servicios backend escalables usando Django y Python. Este rol clave incluye mentorizar a ingenieros junior, implementar buenas prácticas y colaborar en un entorno Agile. Se requiere experiencia en cloud computing y habilidades de comunicación excepcionales....

TECDATA ENGINEERING busca un Senior Backend Developer (Scala) para trabajar en la localización de Sage HCM para el Reino Unido y automatización de despliegues, facturación y aprovisionamiento. Formarás parte de un equipo que corrige errores y atiende solicitudes de clientes de pago, con énfasis en rendimiento y escalabilidad. Se requieren sólidos...

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...

T-Systems Iberia sucht einen Senior Backend Engineer, der zentrale Plattform-Services, API-Design und robuste Microservices für skalierbare KI-Infrastruktur entwickelt. Sie arbeiten eng mit ML-Infrastrukturteams zusammen und verantworten Sicherheit, Observability und CI/CD. Sie verfügen über umfangreiche Python-/API-Entwicklung, verteilte Systeme,...

bsport is seeking a Senior Backend Engineer to join the Community & Engagement team, building backend systems powering marketing and communications for studios worldwide. You will work on agentic AI initiatives, the marketing suite, and data foundations to enhance scalability and channel integrations. You will design and evolve backend architectures,...

Workato seeks a seasoned Go backend engineer to design and optimize distributed systems that power our runtime platform. You will tackle high-concurrency components, memory-sensitive paths, and performance-critical code, collaborating across teams to ensure reliability and scalability. This role emphasizes low-level engineering and robust concurrency...

Pearson is hiring a Senior Software Developer to help design and deliver AI-enabled backend services for digital learning products. You will work autonomously in a fast-moving environment, collaborating with product and data science teams to deploy scalable microservices and secure, compliant solutions. The role emphasizes feature development, documentation,...

Super is a global technology group building The Playstack, powering sports, gaming and fan experiences across Europe and Latin America. We are seeking a Senior Backend Engineer to join the Player – Transact Tribe to shape scalable systems and drive platform-wide improvements. You will work on core platform components, cloud-native solutions, and...

MediaMarktSaturn Plattform Services GmbH in Barcelona is seeking a senior backend developer to design, implement and operate scalable services for our Global Loyalty ecosystem. You will work with Kotlin, GCP, and modern DevOps practices to deliver reliable solutions that power millions of interactions across Europe. The role emphasizes event-driven...

FinTech Collective, LLC is seeking a Senior Software Engineer for the Core Platform team that runs a real-time payment ledger. You will work on how transfers are accepted, recorded and confirmed, with strong emphasis on correctness under high concurrency. You’ll own design, write tests, review code, profile performance, and lead cross-team initiatives such...

Preply is seeking a Senior Engineer to join the Engineering Team in Barcelona to develop backend features with Python/Django, and to build integrations with third-party vendors for an AI-enabled learning platform. You will collaborate with Product, Design, Data Analytics and Engineering to deliver high-quality features through CI/CD, maintain robust testing,...

Amphora Logistics busca un Backend Developer con Python para unirse al equipo de Atenea, nuestro software de gestión logística inteligente. Desarrollarás servicios backend, APIs y arquitecturas orientadas a eventos, trabajando en una plataforma cloud-native para miles de operaciones diarias. Trabajarás de forma cercana con producto y equipos...

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...

Jobtailor is seeking a skilled Backend/Frontend Engineer to design, develop, and maintain scalable backend services using Node.Js and AWS. You will build cloud-native solutions with Lambda, DynamoDB, and event-driven architectures, delivering low-latency services for cross-functional teams.As part of a collaborative environment, you will participate in code...