Empleos de senior python backend en Barcelona

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...

Qonto in Barcelona, Spain is seeking a Principal Backend Engineer to lead scale initiatives across Foundations domain. You will own end-to-end backend architecture for high-volume transactions, search, and monetization, partnering with Legal, Risk, and leadership to translate technical bets into business outcomes.You'll mentor engineers, drive AI-native...

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...

Description: This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a (Senior) Product Engineer (Backend) based in Spain. As a backend-focused Product Engineer, you’ll play a key role in building reliable, scalable SaaS products that directly improve the way frontline employees work....

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...

The Whiteam Consulting busca un Senior Backend Developer con sólida experiencia en Java, Spring Boot y Spring Batch para liderar la modernización de sistemas mainframe. Trabajarás en la migración de procesos COBOL hacia arquitecturas Java modernas, aplicando herramientas de IA en el SDLC y automatización avanzada. El rol implica diseñar soluciones,...

About The Role This project is suited for a Senior Python developer with deep functional testing experience, strong Linux and Docker skills, the ability to read code across multiple languages with the support of LLMs (e.g., C, Rust, Go) and translate requirements for migration tasks, and confidence using tools like Roo Code or Claude Code to accelerate...

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...

Can you imagine contributing to a pharmaceutical internal platform that supports critical business and engineering processes?Join our expert team to work on a Sector Pharmaceutical, contributing to the development of an internal platform that integrates applications, cloud services, APIs and engineering tools.You will apply your knowledge of Python, FastAPI...

Coforge busca un/a Senior Java Developer con sólida experiencia en desarrollo y mantenimiento de aplicaciones empresariales basadas en tecnologías Java. Trabajarás con Java 8, Spring Framework, PL/SQL, Oracle y Struts en entornos corporativos complejos para garantizar calidad, estabilidad y escalabilidad. Colaborarás estrechamente con analistas...

Lever, Inc. is seeking a Senior Backend Engineer – Data Core for a partner company based in Spain. You will design and run data infrastructure powering a large-scale creator data platform, handling 400M+ creator profiles across Instagram, TikTok, and YouTube. This remote-first role emphasizes autonomy, end‑to‑end ownership, and cost-efficient, reliable...

Oxigent Technologies busca un/a Senior Automation QA para su equipo en Barcelona, dentro de un proyecto internacional de procesamiento y distribución de datos entre sistemas en el sector tecnología para la aeronáutica.Asegúrese de leer detenidamente la información sobre esta oportunidad antes de presentar su candidatura.Serás responsable de impulsar la...

Knowmad Mood busca un desarrollador/a senior backend Java para liderar proyectos y aportar soluciones robustas. Formarás parte de un equipo orientado a innovación y transformación digital, trabajando en un entorno 100% remoto.Se valorará experiencia en Java/Spring, microservicios, Open API, Kafka y testing, junto con monitorización (Grafana) y...

About The CompanyScrambly is one of the fastest-growing adtech startups in the world, featured in the AppsFlyer Performance Index and Singular ROI Index in just 3.5 years. We're growing 250%+ YoY across revenue, team, product, and technology - fully bootstrapped and profitable. We're building the future of app discovery: a reward-powered alternative to the...

Senior Backend Engineer (TypeScript / Node.js) | 100% remoto | 4 días/semana (Lunes a jueves) | 45K–60KEnKYNAUTbuscamos incorporar un/aBackend Engineer muy seniorpara participar en la evolución del plano de dominio de una aplicación, trabajando sobre susAPIs REST y una arquitectura orientada a eventos.Buscamos un perfil con una trayectoria técnica...

Estamos buscando incorporar un/a Programador/a Senior Backend con sólida experiencia en Java y Spring Boot para participar en un proyecto de larga duración. Stack y conocimientos imprescindibles: * Desarrollo y consumo de APIs REST * Spring WebFlux, mínimo 1 año de experiencia * Testing con JUnit y Mockito, tanto unitario como de integración *...

Lever, Inc. is seeking a Senior Backend Software Engineer for its Future Hiring Program, based in Spain. You will join a forward-thinking engineering team delivering high-impact software for global enterprise clients across diverse industries. Working remotely within Europe, you will contribute to design, development, and deployment of scalable backend...

Abacum, the leading Business Planning solution, is hiring a Software Engineer to join our Barcelona team. You will work on a multi-disciplinary squad building a real-time calculations engine and data visualisations, collaborating with designers, product, and other engineers. We value ownership, fast learning, and a hands-on approach to shaping our technical...

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,...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Staff Backend Engineer, AI Tooling based in Spain. This is a high-impact engineering role focused on building the platforms, tooling, and AI-powered capabilities that help engineering teams move faster without compromising...