Full-Stack Engineer; Web & APIs

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 Base
360.ai
, our proprietary automation engine, we are building the operating system for modern renting — connecting property data, orchestrating operations, and enabling seamless stays across continents.

If you’re energized by web platforms, API-driven systems, automation, and real-world scale, this is your opportunity to shape how millions of people move, live, and experience the world.

As a Full-Stack Engineer (Web & APIs), you will design, build, and scale the core web applications and APIs behind The Flex platform—powering instant bookings, intelligent access, automated workflows, and predictive operations.

You will work end-to-end across frontend interfaces, backend services, and cloud infrastructure
, turning complex operational challenges into clean, scalable, API-first systems.

You won’t just ship features.

You’ll create leverage, unlock automation, and architect the foundation of an intelligent, global rental ecosystem.

• Build the Platform — Develop fast, reliable, and scalable web applications and APIs that power bookings, payments, availability, and guest experiences.
• Design API-First Systems — Architect robust, well-documented APIs that connect Base
  360.ai to internal tools and external partners.
• Automate at Scale — Build event-driven services and automated workflows that eliminate manual operations across the business.
• Connect the Ecosystem — Deliver high-impact integrations with partners such as Airbnb, Stripe, Hostaway, and Twilio.
• Deploy with Confidence — Ship and maintain serverless infrastructure on AWS, optimized for speed, resilience, and global scale.
• Solve Real Problems — Tackle real-time booking synchronization, pricing intelligence, keyless access logic, AI-powered alerts, and live operational dashboards.
• Build With Purpose — Collaborate closely with product, data, and operations teams to turn ideas into measurable, real-world impact.

• Strong experience with Node.js, React, and AWS (serverless)
• A solid understanding of API-first architectures and distributed systems
• Experience with Python / FastAPI for automation or data services (bonus)
• A proven ability to build clean, scalable, production-ready web and API systems
• Curiosity about automation, AI-driven operations, and property technology
• A strong execution mindset — you ship fast, learn quickly, and enjoy solving complex problems

• Real-World Impact — Your work will power thousands of stays and help redefine a multi-trillion-pound industry.
• Small Team, Big Ownership — Minimal bureaucracy, high trust, and the chance to build foundational systems from day one.
• Rapid Growth — Fast iteration, continuous learning, and a culture that values technical excellence.
• Performance-Based Rewards — Competitive compensation with meaningful upside for exceptional contributors.
• Remote-First — Work from anywhere — we measure outcomes, not hours.

• You want a slow, predictable 9–5
• You prefer planning over building
• “Good enough” is your standard
• You’re not committed to becoming elite in your craft