Python Software Engineer - Cafeyn H/F

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

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

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

Perks & benefits of working at Cafeyn

• 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.

• Mental Health

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, 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

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

Classic package

We provide a Swile card for your meal vouchers, Sidecare health insurance, and a mobility package to reimburse your transport subscription.

• Sports

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.

• Mental Health

Mental Health

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

Hybrid policy

We allow you to work remotely two days per week.

• Cafeyn’s access

Cafeyn’s access

We provide you with a VIP code for Cafeyn, giving you unlimited access to all content on our platform.

• Team life

Team life

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., 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.

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., 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.

• Founded in 2006
• Co-workers 120
• Index de l’égalité professionnelle :93/100

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EducationalOccupationalCredential postgraduate degree