Job Title: Software Engineer (Founding Software Engineer)
Company: The Flex
Location: Remote – Worldwide
Location Type: Remote / Work From Home
Department: Engineering
Qualification: Not specified – the company values capability over credentials
Experience: Strong experience building production-grade software systems
Salary: Not disclosed (competitive, with performance-based upside)
Employment Type: Full Time

About the Role:
The Flex believes renting a home should feel as effortless as booking a ride. Powered by Base360.ai, its proprietary automation platform, the company is building the operating system for modern renting – connecting property data, orchestrating operations, automating workflows and enabling seamless stays across continents. As a Founding Software Engineer you will help architect and scale Base360.ai, building internal products, automation engines, AI-powered workflows, integrations and operational systems that eliminate manual work and let the business scale globally.

Key Responsibilities:

• 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 and improve decision-making
• 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 and Google
• Scale Infrastructure: Deploy and manage cloud-native infrastructure built for reliability, performance and global growth
• Solve Complex Operational Problems: Real-time reservation sync, dynamic pricing intelligence, smart key management, automated guest communication, operational forecasting and AI-powered monitoring
• Move Fast: Own projects end-to-end, from idea to deployment, and continuously improve the systems you build

Tech Stack:

• Python
• FastAPI
• React
• TypeScript
• Supabase
• PostgreSQL
• AWS
• Serverless Architecture
• OpenAI APIs
• Twilio
• Stripe
• Docker
• GitHub Actions

Eligibility Criteria:

• 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 a product mindset
• Curiosity about AI, automation and operational efficiency
• A bias toward action and shipping

Bonus Points For Experience With:

• Property technology (PropTech)
• Marketplace businesses
• AI agents and workflow automation
• Event-driven architectures
• Supabase
• AWS serverless infrastructure

Why Join The Flex:

• Build Something Meaningful: Your work directly impacts how people live, travel and experience cities around the world
• Extreme Ownership: Freedom to make decisions and build systems that matter
• Small Team, Massive Opportunity: Work closely with the founders and directly influence product and technical direction
• Performance-Based Rewards: Competitive compensation with substantial upside for exceptional performers
• Remote-First: Work from anywhere – the company cares about outcomes, not hours

This Role Is Not For You If:
You are looking for a slow-paced corporate environment, prefer maintaining systems rather than building them, need detailed instructions for every task, or avoid ownership and accountability.

Selection Process:
Apply online through the official application link given below. Shortlisted candidates will be contacted directly by The Flex hiring team.

The post The Flex Recruitment 2026 – Software Engineer | Remote (Work From Home) appeared first on Job4Everyone.