The Flex

Real Estate

SoftwareEngineer

€85–130k ~AI est. Bulgaria FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

Neural analysis suggests this role is
optimal for Mid+ candidates.

The Brief

“Software Engineer at The Flex. Skills: Software Engineering, DevOps, Cloud, AI/ML. Design scalable applications. Develop scalable services”

What You'll Achieve.

Automate core operational processes; Significantly reduce manual work; Deploy and maintain new integrations; Integrate AI-powered workflows; Enable rapid global scaling

Industry & Context.

Real Estate
Problems you'll solve

Problem-solving; Troubleshooting

What They're Looking For.

Must Have

Production-grade software systems, FastAPI, Python, React, or similar frameworks, APIs, distributed systems, and cloud architecture, Scalable backend systems, Ability to work independently, Problem-solving ability, Product mindset, Curiosity about AI, automation, and operational efficiency, Bias toward action and shipping

Nice to Have

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

What You'll Do.

Design scalable applications

Develop scalable services

Develop scalable APIs

Build event-driven workflows

Leverage machine intelligence

Streamline operations

Improve decision-making

Enhance customer experiences

Enable system communication

Maintain integrations

Deploy cloud-native infrastructure

Manage cloud-native infrastructure

Build solutions for real-time reservation synchronization

Build solutions for dynamic pricing intelligence

Build solutions for smart key management

Build solutions for automated guest communication

Build solutions for operational forecasting

Build solutions for cleaning and maintenance automation

Build solutions for AI-powered monitoring and alerts

Own projects end-to-end

Continuously improve systems

How You'll Work.

Team & Collaboration

Cross-functional teams; Founders

Process & Methodology

End-to-end ownership

Full Job Description

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 http://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. WHAT YOU'LL BUILD As a Founding Software Engineer, you'll help architect and scale Base360.ai http://Base360.ai—the technology platform powering every aspect of The Flex. You'll build internal products, automation engines, AI-powered workflows, integrations, and operational systems that eliminate manual work and allow the business to scale globally. Your work will touch everything from guest journeys and property operations to pricing intelligence and AI-driven decision-making. YOUR MISSION 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 platform

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