Company profile

The Flex Tech Stack

Flexible apartment rentals run on an in-house AI property operations platform

Real Estate LONDON, London 51–200 employees Founded 2019 Privately Held

The Flex operates furnished, flexibly bookable apartments for renters and landlords, but its data reads like a software company: an engineering-dominated hiring mix and a Python/FastAPI, React and Supabase stack wired into Hostaway, Expedia, Stripe and the OpenAI API. Recurring pain points around disconnected tools and manual operations, plus a base360.ai platform build, suggest it is productizing its internal property-management automation.

Tech Stack 37 technologies

Core StackPython FastAPI React TypeScript Supabase PostgreSQL AWS Twilio Stripe Docker OpenAI Trello Asana Slack HubSpot Salesforce Node.js AWS Lambda DynamoDB Google Ads OpenAI API Hostaway Expedia Zoho EventBridge AWS SQS AWS EventBridge Meta Ads Manager Google Analytics 4 Webflow+7 more

AdoptingHostaway

What The Flex Is BuildingChallenges and projects from their job posts

◆Challenges

Fragmented systems and dozens of disconnected tools
Manual operational processes needing automation
Real-time reservation synchronization across channels
Scaling the platform internationally
Slow product development cycles

▲Active Projects

Developing the base360.ai platform
Building and deploying AI-powered automation workflows
Integrating Airbnb and other critical platforms
API-first, cloud-native infrastructure at scale
Launching a new product or business vertical
Improving financial reporting and controls

Hiring Activity

Minimal300 roles · 25 in 30d

Department

Engineering

246

Marketing

Executive

Finance

Support

Seniority

Mid

132

Lead

Senior

Manager

Companies like The Flex

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About The Flex

The Flex is a London-headquartered, privately held company founded in 2019 that offers flexible-stay apartments with cancellation flexibility for guests. It works with landlords as an alternative to traditional high-fee property management and serves renters who want to live and work in different locations. The company employs 51–200 people and recruits across a broad international footprint spanning Europe, North Africa, the Middle East, Asia and the United States. Distribution runs through channels such as Hostaway and Expedia, with Airbnb integration in progress.

HeadquartersLONDON, London

Company Size51–200 employees

Founded2019

Hiring MarketsMorocco, Tunisia, Slovenia, Germany, China, Bulgaria, Kuwait, Austria

Frequently Asked Questions

What tech stack does The Flex use?

The Flex builds on Python, FastAPI, React, TypeScript, Node.js, Supabase and PostgreSQL on AWS (Lambda, DynamoDB, SQS, EventBridge), with OpenAI API, Twilio, Stripe, Hostaway and HubSpot.

What is The Flex working on?

Job posts point to AI-powered workflows, an API-first architecture, cloud-native infrastructure scaling, Airbnb integration, and development of the base360.ai platform.

What countries does The Flex hire in?

Hiring spans countries including Morocco, Tunisia, Germany, Poland, Romania, Portugal, Egypt, Turkey, Malaysia, Indonesia and the United States, with engineering the dominant focus.

Similar Companies in Real Estate

Other companies in the same industry, closest in size

Cambio

Real Estate

St Trinity Property Group

How this profile is built

The Flex's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.