Empleos de remote senior backend java engineer en madrid

F1RST Digital Services procura IT Engineer Spec IV (Java) para atuar com Blockchain e Web3. Você colaborará com equipes globais do Santander, definindo requisitos, desenvolvendo especificações e orientando sobre arquitetura segura e escalável.O papel exige experiência prática em Ethereum/EVM, Solidity, Hardhat ou Foundry, e desenvolvimento de back-end...

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.Se trabajará con APIs usando FastAPI, funciones serverless con AWS Lambda y contenedores Docker, con enfoque DevOps y teletrabajo 100%. Salario entre 38.000 y...

Neo4j is seeking a Senior Software Engineer to shape the core analytics of GraphAware Hume, our graph-powered analytics platform. You will build secure, scalable backend APIs and collaborate with a global team. The ideal candidate has 8+ years of backend experience, fluency in Java, and expertise in Spring, DDD, and TDD. Familiarity with Docker, CI/CD,...

Una empresa tecnológica en crecimiento en Majadahonda busca un Desarrollador/a Sr Backend con amplia experiencia en Python Django para liderar el desarrollo de su infraestructura backend. Se requiere un mínimo de 5 años de experiencia, habilidad para diseñar arquitecturas escalables y trabajar con Jira. El puesto permite trabajo híbrido y ofrece...

Ersilia is seeking a senior backend engineer to own critical systems and contribute to the roadmap. You will implement code, review it, test rigorously, and ensure reliability, performance, and correctness across production environments. Work autonomously with high ownership, collaborating with engineering and product teams while balancing risk and business...

Grafana Labs is hiring a Senior Software (Database) Engineer to help build the underlying storage system for a general purpose data platform. You will work on a SaaS-ready database layer with OLAP/OTLP capabilities, designed to run across cloud providers, with high autonomy and cross-functional collaboration. The role emphasizes pragmatic architecture...

HBX Group is seeking a senior Backend Engineer to develop core functionalities for the CivitFun SaaS platform in the hospitality sector. You will work on integrations with external systems (PMS, payments, locks), architecture design, and cloud deployment from end-to-end. You will design and implement secure backend services with Node.js, collaborate on...

FYUL is seeking a Senior Back-end Software Engineer to join the Commerce Pillar. You will shape our commerce solutions by building reliable, scalable systems and collaborating with product teams. The role offers remote work options and an office in Riga, with flexible hours and strong emphasis on ownership and continuous learning. Ideal candidates have 5+...

Citibeats in Barcelona is looking for an experienced Backend Software Engineer to join their fast-growing team. The role involves developing new features, API endpoints, and maintaining the AI & NLP platform. Ideal candidates should have at least 3 years of experience in Python, preferably with Django, and be fluent in both Spanish and English. Citibeats...

Grafana Labs is seeking a Senior Engineer for Pyroscope, our open-source profiling platform, in a fully remote role across the global team. You will own end-to-end projects, design core database components, and align with customers to shape the product roadmap while maintaining a strong focus on reliability and cost efficiency. We value collaboration across...

Apipana.io en Sevilla busca un Senior Software Engineer para diseñar y desarrollar soluciones backend escalables, robustas y mantenibles, asegurando altos estándares técnicos. Serás nexo entre engenharia y arquitectura del cliente, traduciendo requisitos de negocio en soluciones técnicas viables y liderando decisiones de diseño. Trabajarás con...

Playson is seeking a Senior Backend Engineer to develop and optimize promotional features for our gaming platforms. You will own core services, tackle performance and scalability, and drive technical decisions in a fast-paced SaaS environment. You’ll work with Node.js and TypeScript in a microservices ecosystem, collaborate with distributed teams, and...

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...

Welcome to DKB Code Factory….Join DKB Code Factory as a Java Engineer and take on a pivotal role driving the technical excellence and delivery of core backend services. This hybrid position in Valencia offers the chance to grow your leadership skills, own key system domains, and mentor peers within a collaborative, high-impact...

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,...

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...

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...

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,...

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...

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...