Empleos de remote java backend engineer en Madrid

Grafana Labs in Spain is seeking a Senior Software (Database) Engineer to help build the underlying storage system for a general purpose data platform. The role emphasizes autonomy, architectural pragmatism, and the ability to evolve from prototype to production-grade SaaS. We value engineers who can design scalable, multi-tenant services while maintaining...

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...

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...

Hyqoo is seeking a Software Engineer / Python Developer for a contract, remote role. You will design, develop, test, and deploy scalable Python applications and backend solutions, with emphasis on clean code and maintainability. You will work across product and engineering teams to transform business requirements into robust technical solutions, contribute...

Grafana Labs is seeking a Staff-level Backend Engineer to design and ship core backend services powering a context layer for AI-driven data intelligence. You’ll build the foundation for a scalable, multi-tenant SaaS, with ingestion, storage, APIs, and agent-facing integrations in a production-grade environment. This remote-first role offers Spain as a base...

Chainlink Labs is seeking a Software Engineer for the CCIP Protocol to design and maintain services that coordinate fast, fault-tolerant cross-chain transactions under adversarial conditions. You will join a team focused on reliability, security, and scalability across a remote-friendly environment. In this role, you will work with Go, Rust, or TypeScript to...

Lever, Inc. is seeking a Senior Backend Engineer – Data Core for a partner company based in Spain. You will design and run data infrastructure powering a large-scale creator data platform, handling 400M+ creator profiles across Instagram, TikTok, and YouTube. This remote-first role emphasizes autonomy, end‑to‑end ownership, and cost-efficient, reliable...

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 observability and...

Urban Sports Club in Valencia is seeking a Senior Backend Engineer to enhance our technology offerings. In this role, you'll architect and develop impactful Golang and PHP services, collaborating with cross-functional teams to foster an outstanding wellbeing experience. Ideal candidates will have over 5 years of backend engineering experience, demonstrating...

Lever, Inc. is seeking a Backend Engineer based in Spain to join a small, ambitious product team. You will own the central API and backend services, primarily using Node.js and TypeScript, and focus on API design, data modeling, performance, and developer experience. This remote, asynchronous role offers substantial technical ownership, collaboration with...

Mimica is hiring Senior+ engineers to lead backend development for ML-driven tasks. You will own core Python services interfacing with ML models and contribute to our platform architecture and DevEx. This fully remote role offers collaboration with Data Scientists and scalable systems. You will join a Python-focused chapter, shaping technical direction,...

Affirm is seeking a Staff Software Engineer, Backend (Identity International) to lead backend architecture for global markets from Spain. You will design scalable systems, shape technical strategy, and collaborate with product, design and analytics to ensure robust identity services. You will own operations, drive high availability, and help grow talent...

Anyone AI Inc. is seeking a remote, part-time, project-based expert evaluator to design and assess realistic software engineering tasks, spanning bug fixing, feature development, refactoring, and test generation. Contributors will work remotely, control their own schedule, provide their own tools, and may serve multiple vendors, with per-project compensation...

Grafana Labs, the company behind the open observability cloud, is a fully remote organization with 1,600+ team members across 40+ countries. This Senior Engineer role on Pyroscope focuses on scaling a distributed database, improving profiling capabilities, and integrating with the Grafana stack. You will own end-to-end projects, drive operational excellence,...

AgioGlobal Technology busca un/a Desarrollador/a Python Senior con amplia experiencia para diseñar, desarrollar y mantener servicios backend en Python, con foco en calidad de código y escalabilidad.Por favor, presente su candidatura sin demora si su perfil encaja bien con este puesto, debido al alto nivel de interés.Se trabajará con APIs usando FastAPI,...

¿Estás preparadx para un cambio y explotar tus habilidades como nunca? Sigue leyendo porque tenemos lo que buscas...¿Quiénes somos?Somos una empresa internacional con más de 18 años de experiencia en consultoría e ingeniería informática.Con más de 2.500 Primers operando en 4 sectores principales en todo el mundo: IT, Telecomunicaciones, Energía e...

Una compañía tecnológica busca un DevOps/Desarrollador Backend con al menos 3 años de experiencia en entornos cloud AWS, especializándose en Python y Terraform. El rol implica el desarrollo de aplicaciones backend, implementación de infraestructura como código y garantizar la calidad del software a través de testing unitario. Se ofrece contratación...

Grupo NS busca un/a QA Engineer con experiencia en automatización y conocimientos sólidos en FOREX para unirse a un proyecto tecnológico en un entorno Agile y squads. Modalidad remota, desde España. Participarás en la definición y ejecución de pruebas, así como en la automatización de procesos, trabajando principalmente con Java orientado a Backend....

A leading technology company in Madrid is looking for a technically skilled Java Engineer to join their dynamic Software Engineering department. The role involves architecting and developing software services using cutting-edge technologies. Ideal candidates have over 3 years of experience in Java and Spring-based technologies. The company promotes flexible...

Grupo Digital busca un/a Senior Full Stack con base sólida en Java/Spring Boot para diseñar, desarrollar y mantener aplicaciones empresariales modernas. Trabajarás con microservicios, REST APIs y IA aplicada al ciclo de vida del desarrollo, desde generación de código hasta testing y documentación. Necesaria experiencia en backend/frontend y capacidad...