Senior Software Engineer Backend (F/H) - Lyon|Paris

LumApps 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.

LumApps 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 500 clients around the world and is delivering meaningful business benefits. LumApps 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 Next40/120 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 700 leading companies trust LumApps 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,

🎯Helping companies to reduce turnover, accelerate employee onboarding, better collaborate and share knowledge, and even improve their customer experiences.

With a team of over 600 Lumies spread across 11 offices (Lyon, Paris, Sophia-Antipolis, Lille, Barcelona, Hamburg, London, Austin, Tokyo, Zurich and Krakow), LumApps 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 LumApps 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!

*Team* 

Our team is highly involved in topics related to the initial interactions with our product and the communication with third parties.

Our responsibilities include domain management, login flows, and page rendering.

We develop tools for product installation and setup, covering tenant creation, configuration, feature management, and quota management. Additionally, we provide a dedicated tool for the support team to monitor and inspect active deployments.

As an open platform, we maintain connectors and applications that enable modules, extensions, and micro-apps to integrate with external software.

The team is majority based in Tassin-La-Demi-Lune with team members in Paris.

*Missions*

• Contribute to architecture decisions and technical design.

• Develop and maintain scalable, reliable features.

• Participate in code reviews and continuously improve best practices.

• Deploy, Monitor, debug, and optimize services in production.

• Work closely with other engineers, product, design and operations teams to create solutions that meet business requirements, follow engineering best practices and integrate well in our product.

*Skills*

We are looking for a strong Senior Backend Developer, with a strong sense of ownership and autonomy who can own the full production chain: design, architecture, development, testing, deployment, delivery and maintenance.

• Proficiency in Python or strong experience with other high-level programming languages.

• Solid software engineering foundations: clean code, maintainability, testing, scalability.

• Ability to collaborate effectively in a team and lead technical projects.

• Experience with relational databases (e.g., PostgreSQL, MySQL/MariaDB).

Valued Assets

• Understanding of Authentication/Authorization protocols (SAML, OAuth2)

• Familiarity with infrastructure to