Empleos de senior backend engineer java en Madrid

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,...

Santander Consumer Finance Global Services is seeking a skilled Back End Engineer to join its innovative team. This role involves building state-of-the-art software solutions for a global platform focused on a positive customer impact. You will design, build, and deploy Cloud-native applications using Java, Kotlin, and AWS.Ideal candidates will have...

MotorK is seeking skilled engineers to join MotorK Ultra, an elite unit building scalable backend systems across Europe. The role emphasizes clean architecture, AI-driven problem solving, and high autonomy in a fast-moving, low-bureaucracy environment.You will work with PHP/Node.js/Java, modern frontend stacks (Vue/React/Angular), and AWS, contributing to a...

Estamos buscando incorporar un/a Programador/a Senior Backend con sólida experiencia en Java y Spring Boot para participar en un proyecto de larga duración. Stack y conocimientos imprescindibles: * Desarrollo y consumo de APIs REST * Spring WebFlux, mínimo 1 año de experiencia * Testing con JUnit y Mockito, tanto unitario como de integración *...

Knowmad mood busca un desarrollador/a senior backend Java para liderar la implementación de soluciones en un cliente del sector textil. El rol es 100% remoto y con contrato indefinido, con oportunidades de crecimiento y formación continua.Se valoran experiencia en Java, Spring/Spring Boot, microservicios, arquitectura hexagonal, OpenAPI/API First y Kafka....

Scrambly S.r.l. is seeking a Senior Backend Engineer to help build the core systems behind Scrambly. You’ll work on user-facing product systems and the internal platform, solving scalability challenges for a global, adtech product. You’ll design and maintain scalable Node.js/NestJS RESTful APIs, mentor engineers, and collaborate with Product, Design and...

UserWise, LLC is seeking a Principal Server Engineer to own our backend for live games with 1M+ DAU. You will design scalable Go/Python services, extend Nakama core game services, and drive performance improvements across PostgreSQL and in-memory stores. You will lead investigations, optimize distributed systems, and ensure reliability in production. The...

Clarivate is seeking a Senior Software Engineer for AI Product Development to join the Cortellis CMC team in Barcelona. This permanent full-time role involves the design and implementation of backend services, with a focus on AI capabilities and scalability. Candidates should have a Bachelor’s degree in a related field and over 5 years of experience in...

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...

Timup, consultora de selección, busca un/a Senior Backend Developer para evolucionar y modernizar una plataforma tecnológica en un entorno con microservicios en producción. Trabajarás con Symfony, Laravel y Node.js, migrando legacy de Laravel y consolidando servicios para una arquitectura óptima. Se requiere experiencia sólida en PHP 8.2+,...

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,...

Finom is seeking a Senior Backend Engineer who thinks like a product builder and thrives in a collaborative cross-functional team. You’ll own backend systems, focusing on robust, scalable financial infrastructure, in a domain team with frontend, mobile, ML/AI, and QA partners across Europe. You’ll bring deep .NET/C# expertise, experience with...

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...

Spain (Remote) Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to...

EPAM Systems in Malaga, Spain, is seeking a Senior Java/Scala Developer to join a hybrid team building back-end platforms for a leading hedge fund. You’ll contribute to scalable, high-performance services and collaborate with investors and engineers on real-time decision support across global markets.Ideal candidates bring 7+ years of software development,...

Job Reference: 00000049-1Date Posted: 8 October 2026Recruiter: Coberon ChronosLocation: SpainRemote Working: 100% remote working possibleSalary: On ApplicationSector: Engineering, IT & TechJob Type: Permanent, Full-time, Home-office based, W2, RemoteEmail: cv@coberonchronos.comApply for this job nowJob DescriptionOur client is a world-class American B2B...

Kleo is seeking a talented Senior Backend Engineer to develop and optimize our AI-native financing platform. You will contribute to the entire product lifecycle, building features using NestJS, TypeScript, and PostgreSQL, while integrating advanced AI solutions to enhance automated workflows.Join a dynamic startup environment in Madrid, where you will...

Playson is seeking a Senior Backend Developer to build, optimise and scale high-load backend services where latency matters. You will own core features and write production-grade code daily in a distributed environment. Join a cross-functional team using Node.js/TypeScript, Kafka and cloud-native infrastructure on Kubernetes with AWS/GCP. Expect on-call...

commercetools is seeking a Senior Search Engineer to join the Discovery Team to build the retrieval layer behind product discovery for leading ecommerce brands. You will enhance search across catalogs, enabling fast, cost-effective results in a scalable JVM backend. You will work on lexical, semantic, and hybrid retrieval with ElasticSearch/MongoDB,...

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...