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Paris, Ile-de-France, France · Hybrid
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Paris, Ile-de-France, France · Hybrid
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Paris, Ile-de-France, France · Hybrid
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Paris, Ile-de-France, France · Hybrid
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Design and develop high-performance Python services to power personalized user experiences, including search and recommendations. Collaborate with cross-functional teams to operationalize data models and ensure system reliability under high traffic.
Requires over 5 years of software development experience with expert-level proficiency in Python and API development. Familiarity with distributed systems, search engines, and containerization is highly preferred.
Cafeyn is more than a platform— it is transforming the way people access and experience content. Since 2006, we’ve grown in a fast-evolving market, adapting to become a leading digital reading service with over 2 million users worldwide. Cafeyn gives readers unlimited, personalized access to thousands of newspapers and magazines, curated to fit their tastes and delivered seamlessly across devices.
Our mission?
To empower individuals with access to trusted, high-quality content that fosters personal growth and discovery. Whether it's through the comprehensive collection of news and features on Cafeyn, the digital publishing solutions of Milibris, the fun and educative content for children on Kidjo, or the collections for manga lovers by Mangas.io, Cafeyn stands at the forefront of digital content experiences.
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
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
Partner with Product teams to define technical solutions
Collaborate with Data Scientists to operationalize models
Work with Infrastructure teams on deployment and scalability
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
Product feature delivery
API performance
System reliability
Technical quality
User impact
First interview with our Talent acquisition manager Léa
Informal meeting with Raphaël, Data engineering manager
Technical assignment to perform live in our Paris office with Raphaël & Thomas, Data engineer
Culture fit with our data team members.
Last interview with Thomas, CTO & Vincent, Director of Engineering
Classic package 🎓
We provide a Swile card for your meal vouchers, Sidecare health insurance, and a mobility package to reimburse your transport subscription.
Sports 🏃
We have a partnership with Wellpass that gives you access to fitness classes and wellness activities for both exercise and relaxation as you want.
You have an access to our mental health platform teale, where you can book appointments with your psychologist or monitor your mental health.
Hybrid policy 🏠
We allow you to work remotely two days per week.
Cafeyn’s access 🗞️
We provide you with a VIP code for Cafeyn, giving you unlimited access to all content on our platform.
Team life 🪅
We organize four office meet-ups per year. These occasions allow us to gather with our international offices, celebrate company updates, and spend quality time together.
You don’t have to match all the requirements, if you feel this offer could be a great opportunity for you, reach out anyways! We hire based on talent and we promote inclusivity inside Cafeyn and strongly believe that our culture is strongest when it is the most diverse.
miLibris, tech leader in digital content distribution
miLibris is a digital tech company with a start-up spirit, born in Paris in 2009. Our mission is to support publishers' digital strategy by deploying our white-label technologies for the transformation, enhancement and digital distribution of their content to their readers and subscribers. Our B2B solutions, recognized as the most high-end on the market, are based on a SaaS platform that automates the ingestion, transformation, securing, enrichment, and monetization of publications through to their digital distribution to end users. From this platform, web and mobile e-readers emerge that deliver an intuitive, ergonomic and addictive browsing experience. We are the only ones to offer 4 different reading modes within our e-readers: flip, article, audio and dynamic! Our technology can be integrated into the publisher's ecosystem or into web kiosks and turnkey mobile applications to allow the publisher to offer access to its catalog of publications under its own brand, with an optimal browsing experience. We support our 130+ customers through 3 main offers: Start, Essential, Integral! The major players in the press such as L'Équipe, Le Figaro, Les Echos, Groupe La Dépêche, Courrier International, Challenges, the NY Daily News, La Vanguardia, Quebecor... have shown their confidence in us over the long term. We are also focusing our strategy on a distribution product: miLipress aggregates catalogs of press titles into a white-label digital kiosk, in order to establish distribution partnerships such as Air France Play, SFR Presse, eMedia Place, Cafeyn... Our strong expertise in digital distribution and our ability to innovate lead us to extend our markets to serve all content producers, press and non-press, French or foreign, who address their media internally or externally.
Offices: 26, Rue Laffitte, Paris, Île-de-France 75009, FR · 3 Place Ville-Marie, Montreal, Quebec H3B 2E3, CA · Plaça de Catalunya, Barcelona, Catalonia, ES · Tanger, MA · Utrecht, NL
There are currently 1,494 open technology positions in Paris, France listed on Clera. New openings are added daily as companies post roles.
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