Senior Python Backend Engineer

Oxigent Technologies in Barcelona is seeking a Senior Backend Engineer to join a high-performance marketing tech team. You will design and maintain backend services and microservices using Python, integrate with external advertising platforms, and work on automation initiatives. You will collaborate with Data/AI engineers, work with AWS and SQL, and...

Oxigent Technologies busca un/a Senior Python Developer para liderar la migración hacia Go en una multinacional tecnológica de reacondicionamiento electrónico, ubicada en Barcelona (Poblenou). La misión es apoyar proyectos del equipo Code Foundations, migrando servicios de Python a Go, en un entorno moderno con AWS, Kubernetes y microservicios, aplicando...

GoReel is seeking a Python Developer to join our GameServer team. You will build and maintain high-load backend services for a scalable gaming platform and integrate with external operators. Ideally you have 4+ years of Python experience, strong algorithms, and hands-on with PostgreSQL, Docker, and Kubernetes. You'll shape architecture, optimize...

Thunes Ltd is expanding its software engineering team in Barcelona to accelerate treasury automation and data-driven forecasting.You will build robust services deployed in production, focusing on Python, FastAPI and a modern frontend stack with Vue.js.You will work with AWS, Kubernetes and Docker in a fast-paced fintech environment, contributing to...

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....

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...

Software Engineer (Agentic AI) up to ~€100k (flex for strong candidates) + up to 35% bonus (~20% standard, rest based on performance) very generous, early stage equity Madrid or Barcelona (1-2 office days) Company : About the company This rapidly scaling start-up is building an AI-native platform that lets enterprise clients run high-volume operations...

Fliff unpacks sports gaming into social, free-to-play games for all types of sports fans. We’ve built a social sports gaming experience that allows users to compete for leaderboard positioning, to achieve badges and build their status within the game. We are pioneering play‑for‑fun sports gaming, with our flagship social sportsbook experience that...