Senior / Staff Engineer

About

We are looking for a Senior / Staff Engineer capable of taking ownership of critical technical systems and structuring robust long-term solutions.

This role is for an experienced profile who enjoys working on complex production problems, making architectural choices, and ensuring the reliability of systems used daily.

This is not a "feature factory" role. The challenge is to understand, structure, and evolve existing systems with a high level of technical requirement.

Technical Context

We develop and maintain in-house:

• A learning platform (LMS)
• An in-house developed CRM
• Several business tools
• Numerous integrations with external services and APIs

Main Technical Challenges:

• Reliability of critical business workflows
• Integration between multiple services / APIs
• Structuring an architecture that has evolved over time
• Managing large volumes of varied data
• Integrating AI tools into workflows (code, internal tools, operations), with a strong focus on the quality, consistency, and maintainability of systems

Main Stack:

• Python / Django
• React / Next.js
• PostgreSQL
• AWS (ECS, Lambda)

What You Will Do:

• Take charge of critical technical projects end-to-end
• Design robust and maintainable architectures
• Lead complex integrations between services and APIs
• Mentor and structure the use of AI in systems to ensure reliability and maintainability
• Identify and manage technical risks and edge cases
• Improve the overall reliability and quality of the system
• Work directly with the CTO on technical decisions

The position is to be filled in Marseille (13008) and on-site.