Jobs in Montreuil, France

At The Flex, we’re on a mission to reinvent the rental experience worldwide. Renting should be as smooth and effortless as shopping online. Our goal is to give tenants true freedom of choice while providing landlords with powerful tools to manage their properties without high fees or unnecessary complexity.

We’re building a lean, ambitious team of top performers committed to scaling The Flex into a global leader. If you’re passionate about creating technology that solves real-world problems at scale, this role is for you.

As a Platform Engineer, you will be at the heart of The Flex’s technology stack, designing and improving the systems that power reservations, payments, guest communication, and property operations. You’ll focus on building scalable, reliable, and secure solutions that serve as the backbone of our global platform.

• Platform Development: Build and maintain core services that support booking workflows, guest experiences, and property operations.

• API Integrations: Connect with external booking platforms, payment processors, and communication tools.

• Automation: Develop systems to streamline property management tasks, from check-ins to reporting.

• Cloud Deployment: Ensure scalable, secure, and reliable deployments using serverless infrastructure.

• System Reliability: Monitor and improve the performance and stability of platform services.

• Collaboration: Work closely with product and operations to translate business needs into technical solutions.

• Code Quality: Deliver clean, well-documented, and maintainable code through CI/CD practices.

• Proficiency in Node.js, React, and AWS Cloud.

• Experience with serverless architecture and cloud deployment.

• Strong knowledge of API design, integrations, and platform scalability.

• Familiarity with FastAPI, Python, and scripting (a plus).

• Experience building automation for operational systems (real estate, travel, or rentals preferred).

• Strong problem-solving, communication, and collaboration skills.

• Be part of a fast-growing, global company redefining rental operations.

• Build core platform infrastructure that scales internationally.

• Competitive salary plus performance-based incentives.

• Professional growth opportunities in a hands-on, entrepreneurial environment.

You Should not apply if:

• You are looking for a corporate 9 to 5 job

• You are political and enjoy gossiping and talking about people behind their backs.

• You are looking for a stable and slow dead-end job

• You do not aim to be one of the best in the world at what you do