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Backend Engineer Remote at The Flex. Remote Location: Paris. At . The Flex. , we’re on a mission to make renting as effortless as buying something online.. We’re creating a world where anyone can rent . anywhere. , instantly — and where landlords can manage their properties seamlessly, . without agents, inefficiency, or high fees.. Through . Base360.ai. , our proprietary operating platform, we’re powering the next evolution of real estate — intelligent, automated, and borderless.. We’re assembling a . lean team of world-class engineers. ready to scale The Flex into a global powerhouse. If you want to build systems that run cities, automate operations, and change how people live — you’re in the right place.. 🧠 What You’ll Build. As a . Backend Engineer. , you’ll design and scale the systems that power The Flex — from reservation logic and payments to property automation and data intelligence.. You’ll focus on building . high-performance APIs. , . serverless architectures. , and . automation pipelines. that make our platform faster, smarter, and more reliable every day.. 🔧 What You’ll Do. API Architecture:. Design and optimize scalable APIs connecting booking platforms, payment processors, and internal systems.. Automation at Scale:. Build tools to automate critical workflows — check-ins, check-outs, messaging, and reporting.. System Design:. Develop resilient, serverless infrastructure that supports global rental operations.. Data Reliability:. Maintain data accuracy and system integrity across integrations.. Problem Solving:. Diagnose and fix complex backend issues quickly and efficiently.. Cross-Functional Collaboration:. Work closely with product and operations teams to bring real-world needs into technical reality.. Code Quality:. Write clean, testable, and maintainable code supported by CI/CD best practices.. 🧩 What You Bring. Strong proficiency in . Node.js. and cloud platforms (. AWS preferred. ).. Deep understanding of . API design. , scalability, and distributed systems.. Experience with . serverless architecture. (Lambda, DynamoDB, etc.).. Familiarity with . FastAPI. , . Python. , or scripting (bonus).. Experience in . automation systems. (real estate, travel, or rentals is a plus).. Strong problem-solving skills, curiosity, and a bias toward action.. 🚀 Why You’ll Love It Here. Build global impact:. Your code will power thousands of stays and automate entire property operations.. Move fast, build smart:. Small team, no bureaucracy, full autonomy.. Performance-based rewards:. Competitive compensation + growth incentives.. Learn from the best:. Work directly with high-performing founders and engineers.. Remote-first freedom:. Work from anywhere — results > hours.. 🚫 Don’t Apply If. You want a slow, predictable 9–5 job.. You thrive on gossip or politics.. You’re not hungry to grow or improve.. You’re okay with being “good enough” — we’re building with the . best. .. 🧭 The Flex x . Base360.ai. We’re not just writing backend code — we’re building the . AI-powered operating system for the rental world.. If you’re ready to engineer the backbone of a global platform and leave your mark on how people live — . apply now.. #LI-Remote