Empleos de remote senior backend java engineer en Barcelona

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...

Global M in Barcelona is seeking a backend engineer to design and build scalable Python services. You will architect data storage and retrieval across SQL/NoSQL databases and develop batch or streaming pipelines using AWS and Kubernetes. You will experiment with modern AI tooling and coding agents in a builder-minded, English- or Spanish-speaking team....

Senior Backend Engineer (m/f/d), Driver Onboarding | Freenow* Navigation* Inhalt* Fußzeile* Safety Download the app## **YOUR DAILY ADVENTURES WILL INCLUDE:*** Own the Feature, Own the Code – feel responsible for what you create. It all starts with bringing in your feature ideas, goes over development, testing and ends in deploying your code and monitoring...

Titan Operating System, based in Barcelona, seeks a Senior Backend Engineer - Go to design, develop, and maintain scalable backend infrastructure powering our products and services. You will ensure security, reliability, and performance while integrating cutting-edge technologies to support growing user demand. You will collaborate with cross-functional...

Vibedesk está buscando talentos para impulsar la próxima generación de Sovereign AI Workspaces, protegiendo infraestructuras de datos frente a la amenaza de la computación cuántica. Si te apasiona la criptografía aplicada y quieres trabajar en tecnología de frontera, este es tu lugar.Trabajarás en investigación aplicada, arquitectura Zero Trust y...

InnoIT Consulting busca un Backend AI Developer para un proyecto innovador en Barcelona, con un enfoque en IA avanzada, NLP, LLMs y pipelines de prompts. Se valorará autonomía y capacidad de entregar soluciones de principio a fin.Se trabajará en un entorno híbrido en Barcelona, colaborando con equipos de IA y desarrollo frontend para construir APIs y...

Allianz invites a Senior Solutions Engineer to join the Data and AI Transformation Engineering team, building scalable backend platforms exposing AI capabilities as reliable services. The role focuses on API-driven systems on Kubernetes, combining AI components with deterministic logic for complex transformation use cases in a regulated financial services...

Flight Centre Travel Group in Barcelona seeks a Software Engineer to build AI-native products powering travel experiences for clients worldwide. You will join agile squads, own backend services, and contribute to a Rails stack while advancing in a global, collaborative environment. Responsibilities include developing LLM-powered features, implementing CI/CD,...

Lingo is building a cutting‑edge digital health platform that fuses continuous biosensor data, high‑performance backend engineering, and advanced analytics to help people live healthier, longer, fuller lives. Our systems process massive volumes of real‑time data, and the backend is the heartbeat that transforms biosensor signals into actionable health...

Monzo Bank is looking for a Backend Engineer in Barcelona, Spain. In this role, you will collaborate with a diverse team to enhance the banking platform while working with technologies like Go, Cassandra, and AWS. Strong backend development experience and a product mindset are essential. Benefits include a competitive salary, flexible working hours, and a...

Fliff is building data-driven sports gaming platforms with real-time data pipelines and a focus on correctness, observability, and resilience. We seek a Senior Python Engineer to own core backend systems.You will work on sports data ingestion, transformation, and distribution, collaborating across squads to ensure timely, accurate data feeds and reliable...

We're here to help make tech reliable, affordable, and better than new. We're a global marketplace for refurbished devices, helping lower our collective environmental impact by providing trustworthy, affordable tech with 92% less carbon emissions than new. Turns out refurbished tech is way better for the planet than new. From our Customer Care...

ERNI is seeking a senior Java backend developer to build scalable enterprise applications and AI-enabled solutions for the pharmaceutical sector. You will leverage Java, Spring Boot, React, Next.Js and MUI to deliver secure, reliable products while collaborating with multidisciplinary teams.You will join a hybrid team with a strong culture of mentorship, 1:1...

Lingo is building a cutting‑edge digital health platform that fuses continuous biosensor data, high‑performance backend engineering, and advanced analytics to help people live healthier, longer, fuller lives. Our systems process massive volumes of real‑time data, and the backend is the heartbeat that transforms biosensor signals into actionable health...

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...

En Lognext llevamos más de 18 años identificando e implementando soluciones tecnológicas prácticas que nos permitan seguir avanzando y optimizar nuestras operaciones, acompañando a los equipos con talento experto de alto rendimiento y haciendo de la tecnología una fuerza transformadora en nuestro día a día. Actualmente buscamos incorporar un/a Senior...

Jobtailor en Barcelona busca un desarrollador full stack para evolucionar y mantener una solución core de soporte a ventas, con un énfasis en frontend y backend.El equipo de producto ágil diseña e implementa funcionalidades escalables y de alta calidad. Se valora experiencia en Angular, Java/Spring Boot, MongoDB y procesamiento de flujos, además de...

PMAT Inc. is seeking a Senior Systems Engineer to oversee multiple subsystems and drive high-level designs for world-class weapon systems.You will collaborate with technical leads, program management, and external partners to resolve system-wide challenges and align architectures with business objectives.The role emphasizes leadership, rapid prototyping, and...

Initium Software busca un Automation Engineer con más de 8 años de experiencia en automatización de pruebas para diseñar y mantener frameworks para Guidewire PolicyCenter y BillingCenter.Colaborarás con equipos globally y stakeholders alemanes, implementando pruebas de extremo a extremo y asegurando la calidad de sistemas críticos.El rol es 100% remoto...

Lever, Inc. is partnering to hire a Product Engineer (AI-Native) based in Spain.You will own features end-to-end, from problem discovery to production, working with AI agents as primary development partners in a fully remote, international team.You'll shape architecture, integrations, and production readiness, reviewing AI-generated implementations for...