backend python

EPAM Systems in Madrid/Barcelona offers a Senior Python Developer role in a hybrid setup. You will design and implement secure, high-performing backend services powering generative AI apps on Azure, including GraphQL APIs and relational database optimization. You will collaborate with DevOps/MLOps and data scientists to operationalize advanced AI...

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...

GFT Technologies busca un Desarrollador/a Senior Python para diseñar, desarrollar y mantener backend y microservicios. Trabajarás con un equipo global en un entorno AI-Centric para sectores como banca, seguros e industrial, utilizando Python, FastAPI y AWS para entregar soluciones escalables. Definirás mejoras técnicas, apoyarás despliegues continuos...

Neara is looking for a Senior Software Engineer (Backend) to join our remote engineering team. You will design, build, and maintain backend services in Go and Python across a microservices architecture. Your role involves collaborating closely with clients and taking ownership of features from inception to deployment. The ideal candidate has 7+ years of...

Una empresa de tecnología en expansión busca un/a Backend Engineer para unirse a su equipo de desarrollo en Madrid, Barcelona, Gijón o Pamplona. El rol implica diseñar y desarrollar APIs en Node.js y FastAPI, definir estructuras sólidas entre microservicios y optimizar el rendimiento. Se requiere experiencia en Node.js y Python, además de conocimientos...

papernest is seeking a Senior Backend Developer with 5+ years of Python experience and deep Django knowledge to own the technical direction of the B2B platform that powers contracts for agents and clients across Europe.You will work with teams in France, Spain and Poland, shaping data models, automation of billing processes, and integration with internal and...

Ai Scale Up is seeking an experienced Backend Engineer to advance our Python backend and AI pipeline stack in an international, 100% remote setup. You will design robust REST APIs, implement strong typing, and craft agentic workflows with LangGraph and LangChain for large-scale data processing.The role requires hands-on experience with Python, FastAPI, LLM...

About Orbio Orbio is an AI-native human capital management platform building a Digital Workforce for HR. We design and deploy agentic systems that take ownership of operational execution across hiring, onboarding, and employee operations — while keeping humans in control. We work with large, complex organizations across sectors such as staffing, retail,...

BarcelonaEngineering – Engineering /Full-time /HybridWho we are: Revise detenidamente toda la documentación de la solicitud antes de hacer clic en el botón de solicitar al final de esta descripción. Headquartered in Seattle and Barcelona, we're a values driven, fast-growing tech company focused on building safe and personalized experiences tailored to...

Back-end / Platform Engineer - Trading Data InfrastructureJoin a high-impact technology team shaping the software and data infrastructure behind critical energy and trading processes. As a Backend Engineer / Platform Engineer, you’ll help build reliable, scalable services that connect applications, data and infrastructure across the organisation. This is a...

A leading software development company in Barcelona is seeking a Senior Software Engineer (Python / Backend) to lead backend development and contribute to an AI-powered platform. Candidates should have over 4 years of experience in Python, strong problem-solving skills, and the ability to work independently. This role offers competitive USD-based...

Job Description Job Title: Python Developer Job Type: Contract Location: Remote Job Summary: In this role, you'll apply your expertise to help train next-generation AI systems. Your work will shape how models learn, reason, and perform through high-quality, real-world input. No prior experience in AI is required — your domain knowledge is what...

ERNI en Madrid busca un ingeniero de software senior para desarrollar una plataforma interna enfocada en nube, APIs y herramientas de ingeniería. Trabajarás con Python, FastAPI y REST APIs para crear servicios backend escalables. Participarás en la integración de aplicaciones empresariales con servicios en la nube y pipelines CI/CD, con un modelo de...

At Roche you can show up as yourself, embraced for the unique qualities you bring.Obtenga más información sobre este puesto leyendo los detalles a continuación y luego envíe su solicitud para ser considerado.Our culture encourages personal expression, open dialogue, and genuine connections,where you are valued, accepted and respected for who you are,...

GFT TECHNOLOGIES SE busca un Senior Python Developer para diseñar y desarrollar aplicaciones backend en Python de alta calidad, orientadas a microservicios y APIs REST.Se requieren más de 8 años de experiencia, conocimiento de frameworks como FastAPI y experiencia en entornos cloud (AWS), Docker y CI/CD. Hará revisión de código, diseño de...

ERNI in Barcelona is seeking a senior backend engineer to build and evolve an intelligent Python-based backend for an Agentic AI solution. You will implement scalable services, secure APIs, and cloud-native components using Python, OpenShift, Docker, and related tools.You will join a supportive team, work in a hybrid model (office 2 days a week), and...

Sectorea busca un/a AI Developer para participar en proyectos internacionales de alta relevancia, desarrollando soluciones avanzadas en Inteligencia Artificial Generativa y arquitecturas escalables. Los candidatos deben tener experiencia sólida en desarrollo backend con Python y automatización inteligente. Ofrecemos un entorno técnico innovador, flexible...

A fast-growing fintech company in Madrid is seeking a Senior Python Backend Engineer to enhance key backend and data projects. This role includes migrating legacy processes to modern cloud-based solutions and designing scalable applications in Azure. Ideal candidates will have over 5 years of experience in Python and a strong background in data management,...

ERNI in Barcelona is seeking a senior backend engineer to build and evolve an intelligent Python-based backend for an Agentic AI solution. You will implement scalable services, secure APIs, and cloud-native components using Python, OpenShift, Docker, and related tools. You will join a supportive team, work in a hybrid model (office 2 days a week), and...

Supersonik seeks Senior Engineers to join our core team in Barcelona. You will tackle complex technical problems, shape product architecture from day one, and thrive in a fast-growing startup. You should be fluent in modern Python, async programming, and adept at building scalable, event-driven systems.You’ll work across frontend to infrastructure to...