Senior Back-end Developer C# .NET - Freelance

Join Cafeyn: Where Innovation Meets Inspiration

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.

Your team & responsibilities

You will join the Tech team - Back End team composed of a team of over 10 developers to ensure the robustness, scalability, performance, and security of the company’s back-end systems.

Your missions

• Participate in the development of APIs and other back-end components.
• Ensure the operation and maintenance as well as the evolution of existing systems.
• Participate in technical design of our back-end systems.
• Ensure all phases of development, code review, versioning, documentation and maintenance.
• Write unit tests, follow code naming and coding style rules, participate in code reviews.
• Respect the methods and processes put in place (agile methodology).
• Ensure a permanent technological watch on its technological sector in order to be able to quickly detect emerging technical solutions and software bricks (Open Source, market software, etc.) that can be integrated into the company's roadmap.

Who are we looking for?

You are at the right place if you have

• Strong working knowledge of C # (.Net Core framework)
• SQL experience
• Strong knowledge of REST APIs and/or gRPC
• Experience with development tools, source management and CI/CD
• Experience in performance optimization, unit tests and best practice
• Product vision
• Team play and strong sense of cross collaboration
• Bilingual in French and English

This job is a freelance opportunity until end of December 26.

Hiring process

• HR Interview with one of our Talent Acquisition Manager (30’)
• Hiring manager and Technical Interview with our Back end Manager, David.

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