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Senior Software Engineer at The Flex. Remote Location: Paris. Join the team redefining the future of global living.. At . The Flex. , we believe renting a home should feel instant, intelligent, and effortless — as seamless as booking a ride.. Our ambition is bold: enabling anyone to live anywhere, anytime, without friction.. Powered by . Base360.ai. , our proprietary automation engine, we’re building the operating system for modern renting — connecting property data, orchestrating operations, and enabling seamless stays across continents.. If you’re motivated by . complex systems, automation, and building software that operates in the real world. , this role gives you the ownership and scope to make a visible, lasting impact.. 💡 What You’ll Build. As a . Senior Software Engineer. , you’ll design, build, and scale critical parts of The Flex platform — from core services and APIs to automation workflows and real-time systems.. You’ll operate with high autonomy, owning problems end-to-end and contributing directly to architectural decisions, while staying deeply hands-on with production code.. This role is for engineers who want . impact, not meetings. — and who take pride in building systems that are reliable, elegant, and scalable.. ⚙️ Your Mission. Build Core Systems. Develop and maintain scalable services that power bookings, payments, availability, pricing, and guest experience.. Design Robust APIs. Create clean, well-structured APIs that connect . Base360.ai. with internal tools and external partners.. Automate Operations. Build event-driven workflows that eliminate manual processes and unlock operational leverage.. Ship with Confidence. Deploy and operate cloud-native infrastructure on AWS with a focus on reliability, security, and performance.. Solve Meaningful Problems. Work on real-time booking synchronization, pricing intelligence, keyless access logic, AI-powered alerts, and live operational dashboards.. Collaborate for Impact. Work closely with product, data, and operations teams to turn complex requirements into simple, effective systems.. 🧠 You’re a Great Fit If You Have. Strong experience building production systems with . Node.js, React, and AWS. A solid understanding of . distributed systems. and API-first design. Experience with . Python / FastAPI. for automation or data services (bonus). A track record of shipping . clean, maintainable, scalable code. Comfort owning features and systems from design to production. Curiosity about . automation, AI-driven operations, and proptech. A bias toward execution — you deliver, iterate, and improve continuously. 🌍 Why You’ll Love Working Here. Visible Impact. Your work will directly affect thousands of stays and real-world operations.. Autonomy & Trust. You’ll own systems and decisions without unnecessary process or micromanagement.. Fast Growth Environment. We move quickly, learn constantly, and value technical excellence.. Performance-Based Rewards. Competitive compensation with upside for high performers.. Remote-First. Work from anywhere — outcomes matter more than hours.. 🚫 This Role Is Not for You If. You want a narrowly scoped role with limited ownership. You avoid production responsibility. You’re uncomfortable working in fast-moving environments. “Good enough” is your standard. #LI-Remote