Empleos de senior backend engineer java en Madrid

Fliff Inc. is building an arena for rewards-driven entertainment, unblocking the economics of social games. We seek aSenior Python Engineer to drive backend integrations across KYC, geolocation, payments and external systems.You will own backend features from design through deployment, building scalable services in Python and Django while collaborating with...

Abacum, the leading business planning platform, seeks a Senior Backend Engineer in the integrations team. You’ll move across languages and ecosystems, design and scale our integrations platform, and work with product, customers, and finance experts to translate complex workflows into robust software.You'll tackle data-heavy integration challenges, build...

Experteer Overview Senior Backend Engineer at Swiss Re’s IT Resilience unit, shaping resilient backend services and AI-enabled automation. You will work across APIs, integrations and automation, contributing to engineering resilience and mentoring others. The role spans multiple languages and platforms, with a focus on turning complex challenges into...

Grafana Labs is hiring a Senior Backend Engineer focused on databases and Loki ingest for the Loki ecosystem. You will work in a remote, globally distributed team on Go-based services running in Kubernetes, delivering scalable telemetry databases and cloud services.You’ll influence roadmap, own features from ideation to production, and collaborate with...

LeoVegas Group in Málaga is seeking a Senior Backend Engineer to drive the Sportsbook backend architecture. You will collaborate with Staff Engineers, validate architectural decisions, and shape backend solutions, contributing to planning and feature development.You will own and implement scalable microservices, ensure reliability, and work with multiple...

Una empresa de tecnología en España busca un Arquitecto/a Java Senior con más de 5 años de experiencia en Java y JavaFX, idealmente en el sector bancario.Esta persona definirá la arquitectura técnica, liderará equipos y asegurará la calidad de las soluciones.Se ofrecen 45€ por hora, 23 días de vacaciones, y retribución flexible que incluye seguro...

BESTSECRET, the leading European online premium fashion platform, is building a modern, Kubernetes-based supply platform from Málaga. We seek a Full Stack Software Engineer to contribute to end-to-end purchasing and article onboarding workflows. You will collaborate with Product, Design, and BI teams to drive data-driven decisions, scalability, and reliable...

SII Group Spain busca un/a desarrollador/a Java con amplia experiencia en migraciones tecnológicas para liderar proyectos de actualización de Java y de infraestructuras de ejecución. Trabajarás en un entorno multinacional, colaborando con equipos de Plataforma y QA, para garantizar compatibilidad entre versiones y continuidad operativa.Se valorará...

Crew buscaAnalista Programador/a Senior para liderar el desarrollo backend con Spring Boot. El proyecto se basa en microservicios, usando Java, JPA/Hibernate y PostgreSQL, con seguridad mediante OAuth2 y JWT. Se valora experiencia en APIs REST y despliegue en AWS, trabajando en un entorno técnico avanzado.El candidato ideal tendrá capacidad para comprender...

Spain | Remote | Senior Engineering OpportunityMaxIT Consulting – Max Corporate Groupis looking for aSenior Backend Engineer, Payments and Ledgerto join a fast-growing New York fintech company building banking, payments, and settlement infrastructure for US prediction markets and regulated gaming.The company operates financial infrastructure that has...

Block Labs is seeking a Go backend engineer to build distributed, transactional backend services across crypto, fintech, and real-money gaming. You will own architectural decisions and be responsible for production behaviour in a high-velocity environment.The role focuses on writing robust Go services, ensuring correctness, and operating the system with...

Delectatech, una startup con sede en Barcelona, busca un Backend Developer (Python) para reforzar el equipo técnico. Se valorará autonomía en desarrollos complejos y capacidad de aportar criterio técnico desde los primeros meses.El stack incluye FastAPI, PostgreSQL, MongoDB, Docker y Azure; se espera experiencia 5+ años y conocimiento de IA/LLM....

About the teamThe AI/ML Engineering team builds and operates ClickHouse's AI and machine learning products end-to-end. This includes the Agentic Data Stack, AI Functions, chDB, the in-Console copilot, and the AI/ML partnerships that distribute them — together with the shared components and expertise that let every other ClickHouse team ship AI in the...

Aircall is seeking a Senior Backend & AI Engineer responsible for designing, developing, and deploying critical AI features. With a focus on LLMs, you will be involved in building chatbots and automated content generation tools. The position emphasizes collaboration, innovation, and high-quality coding practices in a fast-paced environment.Join Aircall to...

Mystery Project busca un Senior Backend Developer para Barcelona, con funciones de diseño, desarrollo y despliegue de APIs escalables usando Node.Js, TypeScript y NestJS. El candidato trabajará en migración hacia una arquitectura serverless en AWS y contribuirá a soluciones basadas en eventos con Lambdas, API Gateway y RDS.Formarás parte de un equipo...

Pearson is seeking a highly autonomous Senior Backend Engineer to design, implement, and scale backend services for AI-enabled digital products. You will collaborate across teams to define requirements and timelines while advancing DevOps, Clean Code, and DDD practices.The role emphasizes secure, scalable architectures and mentoring junior engineers. The...

Dow Jones in Spain (Catalonia) seeks a Senior Software Engineer to design, build, and operate reliable backend services and APIs powering product experiences and internal tools. You will lead complex features, improve performance and observability, and collaborate with cross-functional teams.You will work with Java, Spring Boot, and Python; AWS, Linux,...

Jobgether SRL, listed on behalf of a partner company, seeks a Senior Software Engineer (Node.Js/Python) based in Spain to build backend and AI-enabled systems powering an innovative mobility platform. You will design, develop, and operate scalable web services and APIs using Node.Js, TypeScript, and Python, owning architecture and working with AI engineers...

Swiss Re, a global leader in reinsurance and risk transfer, seeks a Senior Backend Engineer to shape engineering across backend services, integrations and automation. You will mentor peers, contribute to AI/automation capabilities, and work on scalable solutions within the IT Resilience unit.You will join the SACM team and collaborate across Enterprise data...

Bsport is an all-in-one platform for boutique fitness and technology. We are hiring a Senior Backend Engineer in the Community & Engagement team to build scalable backend systems for marketing, communications and member data across thousands of studios worldwide.You will own complex backend projects, contribute to re-architecture, and collaborate with...