Empleos de remote senior backend java engineer en Zaragoza

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...

Rechat, Inc. is building the next generation of enterprise real estate technology. We seek a backend engineer who loves clean architecture and scalable data problems to support our CRM and Marketing platforms.This fully remote role requires deep Node.js and PostgreSQL expertise, with collaboration across cross-functional teams to ship high-impact features...

This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Backend Software Engineer – Future Hiring Program based in Spain. Join a forward-thinking engineering team delivering high-impact software solutions for global enterprise clients across diverse industries.As part of a...

Buscamos un/a Desarrollador/a J2EE con experiencia en desarrollo backend y tecnologías del ecosistema Java para incorporarse a un proyecto tecnológico estable.La persona seleccionada participará en el desarrollo de componentes complejos y colaborará en la coordinación técnica de otros desarrolladores dentro del equipo.Descripción del puesto El rol...

Plexus Tech busca un/a desarrollador/a backend con Java para un proyecto en el sector bancario. Las tareas incluyen optimizar el rendimiento del procesamiento por lotes diario, integrar bibliotecas cuantitativas y asegurar CI/CD en verde.Se valora experiencia con Spark, Parquet y AWS, y nivel de inglés B2. La posición ofrece teletrabajo al 100% y...

Make an impact with NTT DATAJoin a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.Your day at NTT DATAThe Networking...

Lever, Inc. is seeking a Senior Backend Engineer for Payments & Fintech in Spain. You will rebuild and scale the financial systems at the core of a growing global platform, owning architecture for billing, subscriptions, and entitlements. You will lead migrations from legacy systems while ensuring correctness, reliability, and auditable financial records....

Trading 212 is seeking Senior Backend Engineers to own backend services end to end across a microservices platform. You will design, build, test, deploy and operate production systems, collaborating with product and engineering teams to turn complex requirements into durable solutions. You’ll work with Java, Go, Node.js and databases, focus on performance,...

Blunt is hiring a Software Engineer to build Blunt with us. You’ll ship features end to end across our backend, mobile apps, and web interface. Fully remote. The backend uses Python and FastAPI on Google Cloud Run.You’ll work on the scoring pipeline for sentiment analysis, ranking and recommendations. Clients include SwiftUI on iOS, Kotlin/Jetpack...

¿Lo tuyo es Java, te llevas bien con React y disfrutas resolviendo retos técnicos de los de verdad? ¡Queremos conocerte!¿Qué necesitamos de ti? Al menos 4 años de experiencia profesional con Java y Spring Boot. Este es el requisito imprescindible.Experiencia desarrollando e integrando API REST.Conocimientos sólidos de React, JPA y JDBC.Experiencia...

Quik Hire Staffing is seeking a Senior Backend Engineer (Node.js, AWS) for a fully remote, full-time role. You will design, develop, and maintain scalable backend services for a high-traffic platform, collaborating with cross-functional teams to deliver low-latency solutions in a cloud-native environment. You will design and deploy Node.js microservices...

Join our expanding engineering team! We're actively recruiting a Senior Backend Engineer to help scale M-KOPA Mobility, our fast-growing e-mobility business. This is an initial 12-month Fixed Term Contract, with the potential to extend or transition into a permanent role. Build the event-driven microservices that power clean, affordable transport for riders...

Lever, Inc. is seeking a Staff Engineer focused on Pricing based in Spain. You will own the backend pricing infrastructure for a modern energy transaction platform, building a Pricing API from architecture to production readiness and third-party access. The role blends backend engineering, data systems, reliability, and product thinking in a high-impact...

Capitole keeps growing, and we want you to grow with us! We are seeking a Senior Full-Stack Developer (M/F) to join an international project.You will design, develop and maintain scalable full-stack applications using Java, Spring Boot, and Angular, contributing to architecture and DevOps practices. The role requires 3+ years of experience, strong...

Alignerr is seeking an experienced Ruby Software Engineer to design, evaluate, and improve real-world software systems used in AI training and data-driven workflows. This is a fully remote, hourly contract role designed for working engineers who want flexible hours and meaningful, high-impact work.You will develop backend services, review code for...

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...

We are knowmad mood!Somos una compañía líder en transformación digital, en constante evolución y a la vanguardia de la tecnología.Formado por más de 3.000 personas creativas, digitales e innovadoras conectadas a un propósito y capaces de generar conexiones con personas de todo el mundo. Un equipo responsable, flexible y con alta capacidad de...

Métrica, una consultora de negocio e integración de sistemas IT, busca un Desarrollador/a Backend con más de 3 años de experiencia en Node.js y Express para diseñar y mantener APIs robustas.Se valorará testing automatizado, conocimiento de bases de datos y prácticas DevOps (CI/CD), así como experiencia con Git y entornos cloud (GCP). Modalidad...

UST is seeking a Java Developer to join a highly innovative team working within a microservice-based cloud environment in the utility technology sector. You will play a key role in designing, developing, and supporting secure, scalable, and maintainable Java services, APIs, and integrations that connect critical business systems and internal tools. You will...

Make an impact with NTT DATAJoin a company that is pushing the boundaries of what is possible. We are renowned for our technical excellence and leading innovations, and for making a difference to our clients and society. Our workplace embraces diversity and inclusion - it's a place where you can grow, belong and thrive.Your day at NTT DATAThe Networking...