Founding Engineer
The Flex
Job Description
Join the team redefining the future of global living — from the ground up. 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. This is not a job where you “pick up tickets.” This is a chance to build a company’s technical foundation and define how a global platform operates at scale. What You’ll Build As a Founding Engineer , you will help design, build, and scale the core technology that The Flex is built on — from first principles.
You’ll work across product, engineering, and operations , owning systems end-to-end: web apps, APIs, automation pipelines, integrations, and cloud infrastructure. You’ll make architectural decisions early — the kind that matter for years — and move fast to turn ideas into production systems used in the real world. If you enjoy ambiguity, ownership, and building things that actually ship , this role is for you. ⚙️ Your Mission Build from Zero to One Design and implement the initial architecture powering bookings, payments, availability, and guest experience.
Own the Stack Build across frontend, backend, APIs, and cloud infrastructure — choosing tools and patterns that scale. Automate the Business Replace manual processes with event-driven workflows and intelligent automation from day one. Integrate the Ecosystem Build deep integrations with platforms such as Airbnb, Stripe, Hostaway, and Twilio.
Ship Relentlessly3> Deploy, monitor, and iterate on production systems with speed, reliability, and pragmatism. Solve Real-World Problems Tackle real-time booking sync, pricing intelligence, keyless access logic, AI-powered alerts, and operational dashboards. Set the Technical DNA Establish engineering standards, best practices, and a culture of quality, ownership, and execution.