Backend Engineer – Full-time - Remote

Reinvent How The World Rents. At The Flex, we believe renting a home should be as effortless as ordering an Uber. Our mission: make renting borderless, instant, and intelligent. Through Base360.ai, our proprietary platform, we’re building the digital nervous system of the rental world — connecting property data, automating operations, and creating the intelligent infrastructure that powers every stay, everywhere. We’re looking for a Backend Engineer who thrives on automation, scalability, and impact — someone who can turn complex real-world systems into elegant, self-sustaining software. What You’ll Build As a Backend Engineer, you’ll design and scale the backbone of The Flex — the APIs, automations, and intelligence layers that connect global booking platforms, power predictive insights, and orchestrate real-world logistics. Your work will bridge digital intelligence and physical operations — enabling thousands of seamless stays to happen automatically, without human intervention. ⚙️ Your Mission • Architect Core Systems – Build scalable, high-performance APIs and backend services that drive global bookings, payments, and property data synchronization. • Automate Operations – Create microservices and serverless functions that remove repetitive manual processes and enhance efficiency. • Integrate Intelligently – Connect Base360.ai with platforms like Airbnb, Stripe, Twilio, and Hostaway through robust, maintainable integrations. • Design for Scale – Build fault-tolerant, event-driven systems and data pipelines capable of handling millions of transactions across borders. • Enhance Intelligence – Collaborate with AI and data teams to embed predictive automation into operational workflows. • Collaborate for Impact – Partner with product, operations, and front-end teams to turn complex real-world challenges into clean, scalable backend solutions. You’re a Great Fit If You Have • Strong experience with Node.js, Python (FastAPI), and AWS (serverless stack preferred). • Proven track record designing and scaling API-first architectures. • Deep understanding of databases, data synchronization, and event-driven systems. • Curiosity for automation, AI, and real estate technology. • A systems thinker mindset — you design for resilience, not just function. • A bias for action — you thrive in fast-moving, high-accountability environments. Why You’ll Love It Here • Massive Impact – Your systems will power thousands of stays and automate the backbone of a $4T global industry. • Global Mission, Lean Team – No bureaucracy. No silos. Just high performers moving fast. • Autonomy & Growth – Own projects end-to-end and shape our technical roadmap. • Performance-Driven Rewards – Competitive compensation and meaningful upside for top contributors. • Remote-First Culture – Work from anywhere. We care about output, not office hours. Do Not Apply If • You’re looking for a slow, predictable 9–5. • You prefer meetings over momentum. • You’re satisfied with average code and average results. • You’re not striving to operate in the top 1% of your craft.