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Backend Developer at The Flex

Rebuild the backbone of modern renting. At The Flex, we believe renting a home should be instant, intelligent, and seamless — as easy as tapping a button. Our ambition is bold: create a world where anyone can live anywhere without friction. Powered by Base360.ai , our automation and intelligence platform, we’re building the operating system for global stays—syncing property data, orchestrating operations, and powering the infrastructure behind every effortless guest experience.

We’re hiring a Backend Engineer who loves building automation, scaling systems, and solving real-world problems with clean, resilient software.

What You’ll Build

As a Backend Engineer, you’ll architect the foundations of The Flex: the systems, APIs, and automation layers that coordinate global inventory, sync bookings in real time, and enable properties to operate autonomously. Your work will blend digital automation with real-world logistics—enabling thousands of stays to run smoothly without manual intervention.

Your Mission
  • Build the Core — Design and scale robust APIs and backend services that manage bookings, payments, availability, and property intelligence.
  • Automate the Workflows — Develop serverless functions and microservices that eliminate repetitive tasks and streamline operations across cities and continents.
  • Connect the Ecosystem — Implement integrations between Base360.ai and major platforms such as Airbnb, Stripe, Twilio, and Hostaway.
  • Engineer for Scale — Architect event-driven systems and data pipelines capable of handling millions of events and transactions reliably.
  • Power Intelligence — Work with AI and data teams to embed smart automation and predictive logic into operational flows.
  • Collaborate Closely — Partner with product, front-end, and operations teams to translate messy real-world challenges into simple, scalable backend solutions.
You’ll Excel in This Role If You Have
  • Expertise with Node.js, Python/FastAPI, and AWS serverless.
  • Strong experience building and scaling API-first products.
  • A deep understanding of databases, synchronization logic, and distributed systems.
  • A passion for automation, intelligent operations, and emerging PropTech.
  • A systems-level mindset — you think in terms of resilience, reliability, and flow.
  • A strong bias toward execution and ownership.
Why You’ll Love Working Here
  • Meaningful Impact — Your systems will become the automation engine of thousands of stays across multiple countries.
  • High Ownership — Small team, no bureaucracy, and the opportunity to influence core architectural decisions.
  • Speed & Autonomy — Move fast, ship often, and help define the future of our technical ecosystem.
  • Performance-Based Rewards — Competitive salary + meaningful equity opportunities for top performers.
  • Fully Remote — Work from anywhere. What matters is excellence, not timesheets.
This Role Is Not for You If
  • You want slow, predictable routines.
  • You prefer planning meetings over shipping code.
  • You’re content writing average software.
  • You’re not committed to becoming world-class in your craft.
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