Empleos de remote java backend engineer ai-driven microservices en Barcelona

Desarrollador de IA Generativa para plataforma interna y asistente virtual. Integración de LLMs, optimización de casos de uso y desarrollo en Java y Python.

Pluxee invites a Senior Backend Engineer to join the Payments Squad, building resilient, high-volume backend services for global money movements. You will own critical components, implement robust tests, and collaborate with frontend and product teams. You thrive in distributed systems, apply AI-assisted development, focus on data consistency, idempotency,...

Naphora Games Group is seeking a Senior Backend Engineer to design, build, operate, and scale robust backend systems and platforms. This fully remote role aligns with our Saudi working schedule (Sun–Thu, 9:*****:00 KSA time).You will work across backend services, databases, and integrations, focusing on reliable, scalable solutions that support large user...

Tappx, a fast-growing AdTech firm, seeks a PHP Backend Developer to design, implement, and maintain SSP projects with high scalability. You will lead full product life cycle from conception to production and monitoring, driving technical excellence and reducing debt. You will implement internal tools in PHP, ensure code quality with automated tests and...

# Junior Backend Engineer - Customer Identityat N26 - Barcelona Back to jobs1. Home2. Jobs3. Junior Backend Engineer - Customer Identity—N## Junior Backend Engineer - Customer Identity N2620 Customer Identity Full-time Barcelona Relocation Apply Job### Job Description About the opportunity Banking Foundations domain mission for N26 is to provide secure and...

Constructor.io is a distributed team hiring a backend-focused engineer for its Experiments platform. You’ll build Python services and data-heavy pipelines, with opportunities to contribute to the Dash UI and Spark/Databricks work, while prioritizing correctness and observability. You’ll own backend components for experiment assignment, logging, and...

Preply is looking for a Senior Full Stack Engineer in Barcelona to help shape the future of our learning platform. You will balance backend focus (Python/Django) with frontend work (React/Typescript), driving data-informed product decisions and scalable architecture. You’ll mentor peers, raise engineering standards, and partner with product, data, and UX...

Amaris Consulting is hiring a Senior Java Developer to design, develop, deploy, and operate scalable Saa S platforms for payroll and HR tech. You will join multidisciplinary squads, combining backend expertise with Dev Ops practices to support business-critical services through the full software lifecycle. The role requires 7+ years as a Backend Engineer...

Una empresa de tecnología en Barcelona busca un Programador/a de IA Generativa para desarrollar y mantener una plataforma interna. El candidato ideal tendrá experiencia en Java backend y APIs, y habilidades en Python para integrar LLMs. Se ofrecen salario competitivo entre 35.000 y 45.000 euros brutos anuales, horario flexible, y beneficios como cheque...

Allianz Technology in Barcelona is looking for a seasoned Java Developer to modernize legacy systems and develop innovative insurance products. Join a dynamic team leveraging Java, Spring Boot, and Agile methodologies to enhance business solutions. With a hybrid work model, enjoy benefits including healthcare, a company bonus scheme, and career development...

Urbiotica is seeking a Backend Software Engineer to advance our IoT platform. You will primarily build Python backends while maintaining and modernizing Java systems, ensuring stability and scalability as sensor networks grow. You will design and implement APIs, integrate with third-party services, and develop scalable microservices. Collaboration with...

BIP busca ingenier@s backend con experiencia en .NET y Azure para diseñar APIs y microservicios en un entorno orientado a IA. Colaborarás en soluciones cloud modernas, manteniendo código seguro y producible, con enfoque en observabilidad y DevSecOps.Trabajarás en proyectos desafiantes, con herramientas de IA integradas y despliegue continuo, en un...

BIP en Madrid busca ingenieros backend con .NET y Azure para crear APIs, microservicios y soluciones cloud-native. Trabajarás con AKS, Azure Functions, Logic Apps y CI/CD, integrando IA en el flujo de desarrollo para generar, refactorizar y testear código.Se valorará experiencia con IA, contenedores, seguridad y observabilidad, y capacidad para diseñar...

Tappx is hiring a Senior Java Backend Developer to join the Performance Tech team in our IT department. The role focuses on coding, debugging, and maintaining high-quality backend services in Java, with a hybrid/remote setup across Spain. You will work across the application lifecycle, gather requirements, and collaborate with data and product teams to...

En Logicalis Spain estamos buscando 3 perfiles de Data Engineer para participar en el desarrollo y evolución de una arquitectura moderna de datos basada en tecnologías Cloud. El equipo de Data & AI de Logicalis trabaja con clientes nacionales e internacionales, llevando a cabo importantes proyectos de ingeniería de datos, inteligencia artificial y...

Adevinta's Kleinanzeigen unit in Barcelona seeks a Data Engineer (Analytics & Products) to design and build scalable data assets connecting high-traffic backends with user-focused analytics.You will own ingestion through Airflow, transformation with dbt on Databricks, and ensure data quality, observability, and cost-conscious modelling. Strong SQL, Python,...

Bending Spoons is seeking a talented security-minded professional to help build one of Europe’s leading tech companies. You will work with small, high-performing teams focused on security, privacy, and robust systems while growing your career in a fast-paced, startup-like environment.The role offers flexible start dates, part-time options initially, and...

Mindrift is seeking a contractor to help train and evaluate AI agents on expert-level fluid simulation tasks.La experiencia que se espera de los solicitantes, así como las habilidades y cualificaciones adicionales necesarias para este trabajo, se enumeran a continuación.You will take CAD geometry, set up and run simulations, build verified reference...

Marfeel is looking for a Backend Engineer to join their team in Barcelona. You will design and maintain backend services, utilizing Node.js and various databases while ensuring high performance and scalability of applications. The ideal candidate will have over 5 years of experience with a solid understanding of API design and cloud deployments. Benefits...

Talan is seeking a skilled Data Engineer to help build and scale a modern data platform using Databricks. You will drive reusable development patterns and contribute to the core data codebase under the guidance of the Central Platform Team. Remote-friendly role with full-time hours in the Spain time zone (CET/CEST) for a 9-month fixed-term contract. Strong...