Software Engineer

About the Position

Software Engineer

At The Flex, we believe renting a home should feel as effortless as booking a ride. Our mission is ambitious: enable anyone to live anywhere, anytime, without friction. Powered by Base360.ai, our proprietary automation platform, we are building the operating system for modern renting-connecting property data, orchestrating operations, automating workflows, and enabling seamless stays across continents.

We're looking for a highly ambitious engineer who wants to build systems that create leverage at scale. This isn't a role where you'll spend months debating specifications. You'll build, ship, automate, and solve real-world problems that directly impact thousands of guests and properties.

If you're excited by APIs, automation, AI agents, cloud infrastructure, and building products from the ground up, we want to meet you.

Responsibilities

As a Founding Software Engineer, you'll help architect and scale Base360.ai-the technology platform powering every aspect of The Flex.

• Build the Core Platform Design and develop scalable applications, services, and APIs that power bookings, pricing, payments, guest experiences, and operations.
• Create Powerful Automations Build event-driven workflows that automate tasks previously performed by humans.
• Develop AI-Powered Systems Leverage LLMs, AI agents, and machine intelligence to streamline operations, improve decision-making, and enhance customer experiences.
• Design API-First Architecture Create robust APIs that enable seamless communication between internal systems, third-party providers, and future products.
• Integrate the Ecosystem Build and maintain integrations with platforms including Airbnb, Hostaway, Stripe, Twilio, OpenAI, Google, and other strategic partners.
• Scale Infrastructure Deploy and manage cloud-native infrastructure designed for reliability, performance, and global growth.
• Solve Complex Operational Problems Build solutions for:
  • Real-time reservation synchronization
  • Dynamic pricing intelligence
  • Smart key management
  • Automated guest communication
  • Operational forecasting
  • Cleaning and maintenance automation
  • AI-powered monitoring and alerts
• Move Fast Own projects end-to-end-from idea to deployment-and continuously improve the systems you build.

Requirements

• Strong experience building production-grade software systems
• Experience with FastAPI, Python, React, or similar frameworks
• Strong understanding of APIs, distributed systems, and cloud architecture
• Experience designing scalable backend systems
• Ability to work independently with minimal supervision
• Strong problem-solving ability and product mindset
• Curiosity about AI, automation, and operational efficiency
• A bias toward action and shipping

Nice to Have

• Experience with Property technology (PropTech)
• Experience with marketplace businesses
• Experience with AI agents and workflow automation
• Experience with event-driven architectures
• Experience with Supabase
• Experience with AWS serverless infrastructure

We Offer

• Build Something Meaningful Your work will directly impact how people live, travel, and experience cities around the world.
• Extreme Ownership You'll have the freedom to make decisions and build systems that matter.
• Small Team, Massive Opportunity Work closely with founders and have a direct influence on product and technical direction.
• Learn Faster You'll solve real-world challenges across software, AI, automation, operations, and scale.
• Performance-Based Rewards Competitive compensation with substantial upside for exceptional performers.
• Remote-First Work from anywhere. We care about outcomes, not hours.

About the Company

At The Flex, we believe renting a home should feel as effortless as booking a ride. Our mission is ambitious: enable anyone to live anywhere, anytime, without friction. Powered by Base360.ai, our proprietary automation platform, we are building the operating system for modern renting-connecting property data, orchestrating operations, automating workflows, and enabling seamless stays across continents.

Join us in creating a future where renting is frictionless and accessible to everyone.