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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Python Software Engineer - Cafeyn H/F - **Company:** Cafeyn Group - **Location:** Paris, France (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Application Performance Management, Code Review, Continuous Integration, Distributed Systems, Elasticsearch, Python (Programming Language), Machine Learning, Recommender Systems, Software Engineering, Real Time Systems, Reliability of Systems, Backend, Event Driven Architecture, Search Engines, Dynamic Content, Api Design, Stream Processing, Docker - **Published:** June 24, 2026 - **Apply:** https://www.hellowork.com/fr-fr/emplois/80559210.html ## About the Role 5+ years in Software Development - Expert-level Python - API development 5+ years in Software Development Expert-level Python API development - Recommendation systems - Search engines (Elasticsearch/OpenSearch) - Machine learning model serving - Event-driven architectures - Distributed systems - Database management - Docker and Kubernetes - CI/CD practices Recommendation systems Search engines (Elasticsearch/OpenSearch) Machine learning model serving Event-driven architectures Distributed systems Database management Docker and Kubernetes CI/CD practices - Product feature delivery - API performance - System reliability - Technical quality - User impact Product feature delivery API performance System reliability, bachelor degree EducationalOccupationalCredential associate degree ## Description As a Senior Software Engineer (Python), you will build the product-facing services that power personalized user experiences across Cafeyn. You will develop high-performance backend systems supporting recommendations, search, content discovery, and dynamic content experiences used by millions of readers. You will work closely with Product Managers, Data Scientists, and Backend Engineers to transform data and algorithms into customer-facing features. Responsibilities Backend Product Development - Design and develop Python services powering recommendations and search - Build APIs consumed by Cafeyn products - Participate in architecture decisions Real-Time Systems - Develop low-latency services - Build real-time data processing applications - Optimize performance and scalability - Ensure service reliability under high traffic Software Engineering Excellence - Write maintainable and testable code - Conduct code reviews - Improve CI/CD pipelines - Maintain technical documentation Cross-Functional Collaboration - Partner with Product teams to define technical solutions - Collaborate with Data Scientists to operationalize models - Work with Infrastructure teams on deployment and scalability Required Skills Must Have - 5+ years in Software Development - Expert-level Python - API development Nice to Have - Recommendation systems - Search engines (Elasticsearch/OpenSearch) - Machine learning model serving - Event-driven architectures - Distributed systems - Database management - Docker and Kubernetes - CI/CD practices Success Metrics - Product feature delivery - API performance - System reliability - Technical quality - User impact, As a Senior Software Engineer (Python), you will build the product-facing services that power personalized user experiences across Cafeyn. You will develop high-performance backend systems supporting recommendations, search, content discovery, and dynamic content experiences used by millions of readers. You will work closely with Product Managers, Data Scientists, and Backend Engineers to transform data and algorithms into customer-facing features. - Design and develop Python services powering recommendations and search - Build APIs consumed by Cafeyn products - Participate in architecture decisions Design and develop Python services powering recommendations and search Build APIs consumed by Cafeyn products Participate in architecture decisions - Develop low-latency services - Build real-time data processing applications - Optimize performance and scalability - Ensure service reliability under high traffic Develop low-latency services Build real-time data processing applications Optimize performance and scalability Ensure service reliability under high traffic - Write maintainable and testable code - Conduct code reviews - Improve CI/CD pipelines - Maintain technical documentation Write maintainable and testable code Conduct code reviews Improve CI/CD pipelines Maintain technical documentation - Partner with Product teams to define technical solutions - Collaborate with Data Scientists to operationalize models - Work with Infrastructure teams on deployment and scalability Partner with Product teams to define technical solutions Collaborate with Data Scientists to operationalize models ## Related Videos - [API Design - Getting Started](https://www.wearedevelopers.com/videos/33-api-design-getting-started) - [Devouring APIs with Python](https://www.wearedevelopers.com/videos/355-devouring-apis-with-python) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Rest API Antipatterns](https://www.wearedevelopers.com/videos/100208-rest-api-antipatterns) - [Enterprise Python: Software That Lives Long And Prosper](https://www.wearedevelopers.com/videos/946-enterprise-python-software-that-lives-long-and-prosper) ## Related Articles - [Best Companies to Work For in Paris: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/190-best-companies-to-work-for-in-paris-top-25-companies-in-2023) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Best Companies to Work For in France: Top 25 Companies in 2023 ](https://www.wearedevelopers.com/magazine/189-best-companies-to-work-for-in-france-top-25-companies-in-2023) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)