Lead Full-Stack Engineer

Join the team redefining the future of global living.

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.

If you’re driven by technical ownership, system architecture, and building platforms that operate at real-world scale, this role puts you at the center of how millions of people move, live, and experience the world.

What You’ll Build

As a Lead Full-Stack Engineer, you will own the architecture and technical direction of The Flex platform — spanning web applications, APIs, automation engines, and cloud infrastructure.

You’ll lead by building. You’ll design systems, set standards, and make key technical decisions while remaining deeply hands-on across the stack.

This is not a people-management role. It’s a technical leadership role for someone who wants to shape systems, mentor by example, and build platforms that scale globally.

Your Mission

• Own the Architecture: Define and evolve the technical architecture powering bookings, payments, availability, pricing, and guest experience.
• Lead by Building: Deliver critical features end-to-end across frontend, backend, and infrastructure — setting the bar for quality and speed.
• Design API-First Platforms: Architect scalable, well-structured APIs that connect Base360.ai to internal tools and external partners.
• Automate the Business: Build event-driven services and intelligent workflows that replace manual operations across the company.
• Integrate at Scale: Own and evolve deep integrations with platforms such as Airbnb, Stripe, Hostaway, and Twilio.
• Ship with Confidence: Deploy and operate serverless infrastructure on AWS, ensuring reliability, security, and global performance.
• Solve the Hard Stuff: Lead solutions for real-time booking sync, pricing intelligence, keyless access logic, AI-powered alerts, and live operational dashboards.
• Raise the Bar: Establish best practices, review critical code, and mentor engineers through example and technical clarity.

You’re a Great Fit If You Have

• Strong senior-level experience with FastAPI, React, and AWS
• Proven ownership of system architecture and complex distributed systems
• Deep experience designing and scaling API-first platforms
• A history of building production-grade systems used at real scale
• High standards for code quality, reliability, and performance
• A builder’s mindset — you execute fast, think long-term, and enjoy responsibility

Why You’ll Love Working Here

• Architect Real Impact: Your decisions will shape a platform used across cities and continents.
• High Ownership, No Politics: Small, elite team with real autonomy and zero corporate drag.
• Build From First Principles: You’ll help define not just features, but the foundation of the company’s technology.
• Performance-Based Rewards: Top-of-market compensation with meaningful upside for exceptional leaders.
• Remote-First: Work from anywhere — we care about leverage and outcomes, not hours.

This Role Is Not for You If

• You want a management-heavy role with little hands-on work
• You avoid making hard technical decisions
• You’re uncomfortable owning systems end-to-end
• “Good enough” is acceptable to you