Backend Software Engineer - Senior F​/M - Lyon​/Paris

Lum Apps is an Employee Experience Platform that supports companies in their digital transformation on communication, collaboration and engagement of their customers, partners,and above all their employees.

Lum Apps is a proven leader in this dynamic market with a truly unique vision and product. Our enterprise-grade SaaS platform has been deployed by Fortune clients around the world and is delivering meaningful business benefits. Lum Apps is identified as a leader in Gartner's Magic Quadrant for Intranet Packaged Solutions as well as in Intranets Forrester Wave. We are also regularly selected for the French Tech Next
40/ program.

Our mission:
To make people feel that they belong and have a purpose.

To create an environment where all employees are engaged and work together towards the same goal. Over leading companies trust Lum Apps to:

• Improve the productivity of their teams with our SaaS-based Collaborative Experience Platform integrated with both Google and Microsoft collaborative suites
• Transform employees into real ambassadors of their company
• Make employees more efficient and better connected to their peers and relevant information, regardless of their location, with the tools and information they need at their fingertips
• Help companies to reduce turnover, accelerate employee onboarding, better collaborate and share knowledge, and even improve their customer experiences

With a team of over Lumies spread across 11 offices (Lyon, Paris, Lille, Sophia Antipolis, London, Barcelona, Hamburg, Austin, Tokyo, Zurich and Krakow), Lum Apps supports large enterprises from all around the world. We are entering an ambitious phase in our company's journey under the impulse of our new shareholder Bridgepoint, aimed at propelling us to become the clear leader in our market and make Lum Apps shine worldwide in our industry.

We are looking for individuals who are excited to actively participate in this transformation.

If these core values sound like you: "be bold, do amazing things", "say what you mean, do what you say", "one team, same mission", "always be evolving": apply now!

The Social team is a collective of 7 passionate and supportive people:

• 2 back-end developers
• 3 front-end developers
• 1 Product Owner
• 1 Manager

We work in a collaborative, inclusive, and supportive environment where each team member plays a key role in shaping and evolving our web platform. We value diverse voices and backgrounds and believe that together we build the most innovative and sustainable solutions.

The Social team's main goal is to help employees connect through dynamic communities and a personalized feed, fostering collaboration and meaningful communication.

Delivering relevant content to users through feeds and streams.

Managing user backups and search history.

Developing and maintaining robust, scalable back-end features.

Designing APIs in close collaboration with the front-end and mobile teams.

Supporting our testing strategy (unit and automated tests).

Taking part in code reviews and continuous improvement of best practices.

Monitoring and improving the performance of our services.

Contributing to architectural decisions and technical solution design.

We believe in a team culture where:

• Curiosity is encouraged: to learn, share, and experiment.
• Commitment is valued: advancing the product, the team, and the company.
• Kindness is the norm: we support, listen to, and help each other.
• Creativity is stimulated: every problem has a solution, often collective.

As a Back-End Developer, you will be an integral part of the team. Your main responsibilities will include:

We are looking for someone with proven experience in demanding technical environments, capable of delivering end-to-end development and actively contributing to team discussions.

What we expect:

• Strong expertise in Python and solid software development fundamentals.
• Ability to step back, assess technical challenges, and propose adapted solutions.
• Professional proficiency in English (written and spoken).
• Strong focus on code quality, testing, and maintainability.
• A collaborative, inclusive mindset and a supportive…