Full-Stack Engineering Lead

At The Flex, we believe renting a home should be as effortless as booking a ride.
Our mission is to enable anyone to live anywhere, anytime, without friction.
Powered by Base360.ai, our proprietary technology platform, we are building the operating system for modern renting—automating operations, connecting fragmented systems, and creating seamless experiences for guests, landlords, and operators across the world.
We're looking for a Full-Stack Engineering Lead to help scale both our technology and our engineering culture.
This is a hands-on leadership role. You'll spend the majority of your time building products, solving technical challenges, and architecting systems while also helping guide engineering standards, mentoring team members, and shaping the future of the platform.
If you're excited about ownership, rapid execution, AI, automation, and building products that have real-world impact, we'd love to meet you.

What You'll Build
As a Full-Stack Engineering Lead, you'll lead the development of Base360.ai, the technology platform powering every aspect of The Flex.
You'll work across product, engineering, AI, and operations to create scalable systems that automate processes, improve decision-making, and accelerate company growth.
You'll be responsible not only for what gets built, but how it's built.

Your Mission
Lead Product Development
Design, build, and launch high-impact products that improve guest experience, operational efficiency, and business performance.
Architect Scalable Systems
Make key technical decisions that ensure the platform remains scalable, reliable, and maintainable as the company grows internationally.
Drive Engineering Excellence
Establish engineering best practices, code quality standards, development workflows, and technical documentation.
Mentor and Support Engineers
Provide technical guidance, conduct code reviews, and help create a high-performance engineering culture focused on continuous improvement.
Build Automation at Scale
Develop systems that eliminate manual work and allow operations to scale efficiently across multiple markets.
Integrate Critical Platforms
Build and maintain integrations with platforms including Airbnb, Hostaway, Stripe, Twilio, Google, OpenAI, and other strategic partners.
Leverage AI
Implement AI-powered workflows, tools, and agents that improve productivity and decision-making across the business.
Collaborate Across Teams
Work closely with product, operations, revenue, and leadership teams to translate business challenges into scalable technical solutions.

Tech Stack
Our current stack includes:
Python

FastAPI

React

TypeScript

Supabase

PostgreSQL

AWS

OpenAI APIs

Stripe

Twilio

Docker

GitHub Actions

You don't need experience with every technology listed, but you should be comfortable learning quickly and leading technical decisions.

What We're Looking For
Must Have
Strong full-stack software engineering experience

Experience designing and scaling production systems

Strong understanding of APIs, databases, cloud infrastructure, and system architecture

Experience leading technical projects from concept to deployment

Excellent problem-solving and communication skills

Ability to balance speed with engineering quality

Strong ownership mentality and bias toward execution

Bonus Points
Experience leading engineers or technical teams

Startup or scale-up experience

Experience with AI products or LLM integrations

Experience with SaaS, marketplace, travel, or PropTech businesses

Experience with FastAPI, React, AWS, or Supabase

What Success Looks Like
Within your first year:
Core systems become more scalable, reliable, and automated

Engineering velocity increases significantly

Technical debt is reduced without slowing innovation

AI-powered workflows are deployed across the business

New products are launched rapidly and effectively

Base360.ai becomes a major competitive advantage for The Flex

Why Join The Flex
Real Ownership
You'll have direct influence over technology strategy, architecture, and product direction.
Build at Scale
Your work will power thousands of stays across multiple countries.
Lead by Building
This is a hands-on role where you'll spend your time creating solutions, not sitting in meetings.
Small Team, Massive Opportunity
Work closely with founders and help shape the future of both the platform and the engineering organization.
Performance-Based Rewards
Competitive compensation with meaningful upside for exceptional performers.
Remote-First
Work from anywhere. We care about impact, not hours worked.

This Role Is Not For You If
You prefer large corporate environments with rigid processes

You enjoy managing more than building

You are uncomfortable making decisions with incomplete information

You require detailed instructions for every task

You are unwilling to take ownership beyond your immediate responsibilities

If you're excited about leading by example, building world-class software, and helping create the operating system for modern renting, we'd love to hear from you.
#LI-Remote