Empleos de senior java backend engineer remote en Zaragoza

KYNAUT busca un/a Backend Engineer muy senior para evolucionar el plano de dominio de una aplicación, trabajando sobre sus APIs REST y una arquitectura orientada a eventos.Se busca experiencia real y profunda: mínimo 10 años programando, autonomía y capacidad de tomar decisiones técnicas en entornos cloud. La posición ofrece 100% remoto en España y...

Kraken is expanding its Agent Systems team to build AI-powered agents that automate internal workflows across our platform. You will design, prototype, and productionize backend services that reason over user interactions and integrate with multiple internal APIs. We value strong backend fundamentals, distributed systems thinking, and hands-on AI/ML...

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...

Descripción del puesto En The Whiteam Consulting estamos buscando un/a Senior Backend Developer con sólida experiencia en Java, Spring Boot y Spring Batch , para participar en una iniciativa estratégica de transformación tecnológica orientada a la modernización de sistemas Mainframe. La persona seleccionada trabajará en la migración y evolución...

NTT DATA is seeking an entry-level Networking Remote Field Service Engineer (L1) to provide remote technical support to clients, identify incidents and drive resolution while maintaining SLA targets.You will work with vendor networking technologies and use knowledge articles to diagnose issues, monitor service delivery, and coordinate with clients and...

Maisa is seeking a backend-focused software engineer to design, build, and maintain scalable services in Go and Python within a microservices architecture deployed on Kubernetes. You will own features end-to-end, collaborating with client-facing teams to translate requirements into reliable solutions.The role requires 3–7+ years of backend experience,...

CapgeminiEngineering busca un perfil de QA Automation para un proyecto internacional en España. Se diseñarán, desarrollarán y mantendrán pruebas automatizadas para servicios backend basados en Java, Spring y Spring Boot.Se ejecutarán pruebas unitarias, de integración y end-to-end para garantizar la calidad del software. Se valorará experiencia en BDD...

Lever, Inc., on behalf of a partner company, is seeking a Backend Engineer, PHP based in Spain to design, build and scale backend services within a large microservices ecosystem. You will own features end-to-end and contribute to architectural decisions in a fast-moving environment. You’ll work closely with frontend, mobile, design, data and platform...

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...

Nuitée is hiring Senior Product Engineers to join Connect, the heart of our platform. Connect unifies hotel supply into a single clean API that partners build on, enabling real-time pricing and inventory at scale.You’ll own the full lifecycle, move fast from idea to production, and ship iterations that matter with measurable impact on partner traffic and...

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...

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....

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...

Trading-21 is seeking Senior Backend Engineers to join Europe’s fastest-growing mobile broker. You will own backend solutions end to end within a microservices environment, translating complex problems into durable, production-ready services. Work across teams to design for performance, scale and data integrity. You’ll contribute to a modern stack (Java,...

The Elite Job is seeking a skilled Software Engineer (Backend) to join our growing remote development team in Spain. You will design, develop, test, and maintain scalable backend systems powering global digital solutions, leveraging modern server-side technologies. Responsibilities include writing clean code, collaborating with cross-functional teams, and...

Pluxee is a global player in employee benefits and engagement that operates in 28 countries. Pluxee helps companies attract, engage, and retain talent thanks to a broad range of solutions across Meal & Food, Wellbeing, Lifestyle, Reward & Recognition, and Public Benefits. Powered by leading technology and more than 5,000 engaged team members, Pluxee acts as...

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...

Super is a global technology group building The Playstack, powering sports, gaming and fan experiences across Europe and Latin America. We are seeking a Senior Backend Engineer to join the Player – Transact Tribe to shape scalable systems and drive platform-wide improvements. You will work on core platform components, cloud-native solutions, and...

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...

Baoss busca un/a Senior Fullstack Developer con fuerte orientación backend para trabajar principalmente con Java y Spring Boot y frontend en React. Elaborarás y mantendrás servicios REST y APIs, participando en la evolución de una arquitectura basada en eventos.Trabajarás en sistemas complejos con integración de aplicaciones legacy, usando Kafka,...