The Flex
via Ashby
Software Engineer
This is the employer's own posting, not a copy on a job board.
What we know
Is it still open?
Confirmed still open
Last checked 1d ago — checked against the employer's own applicant tracking system, which is the company answering directly.
We re-read the employer's own applicant tracking system and the posting was still there. That is the company answering directly.
How old is it?
Posted 91d ago
The date the source published, not the day we noticed it (2026-06-15). Last seen at its source 2h ago.
Is it remote?
Marked remote on the employer's board
Their board carries a remote setting on this posting — a field they filled in, not wording we read. The location field names somewhere specific, which is usually where the team or the entity sits.
Who may apply?
Paris, Italy, San Marino, Mauritius, Norway, Albania, Portugal, Kazakhstan, Serbia, Montenegro, Brunei, Vietnam, Oman, Hong Kong, Hungary, Slovenia, Poland, Taiwan, Latvia, Philippines, Ireland, Austria, China, Bulgaria, Thailand, Finland, Congo, Peru, Greece, Ethiopia, Armenia, Iceland, Jakarta, Denmark, Malta, Moldova, Kuala Lumpur, London, Belgium, Lithuania, Cameroon, Madagascar, Luxembourg, Cyprus, Turkey, Georgia, Slovakia, Germany, Birmingham, Egypt, South Korea, Switzerland, Romania, Kuwait, Estonia, The Netherlands, Kosovo, Jordan, Manchester, Andorra, South Africa, Japan, Spain, Qatar, Benin, Croatia, Ukraine, Azerbaijan
The description states no restriction of its own. This is the source's own tag.
Pay not stated
Similar roles pay €68.1k–102.5k/yr
Middle 50% of 8 listings that do state pay — Engineering · all levels · France · EUR/year. This employer has published no salary; this is what comparable listings we hold disclose, never converted between currencies or periods. How this is calculated.
Skills named in the ad
Recognised terms only, from a fixed vocabulary — this is what CV matching compares against.
Carried by 1 source
-
ashby employer's own board first seen 38d ago · last seen 2h ago
The listing
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.
What You'll Build
As a Founding Software Engineer, you'll help architect and scale 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 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.
Tech Stack
We care more about capability than specific technologies, but our current stack includes:
Python
FastAPI
React
TypeScript
Supabase
PostgreSQL
AWS
Serverless Architecture
OpenAI APIs
Twilio
Stripe
Docker
GitHub Actions
You Might Be a Great Fit If You Have
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
Bonus points for experience with:
Property technology (PropTech)
Marketplace businesses
AI agents and workflow automation
Event-driven architectures
Supabase
AWS serverless infrastructure
What Success Looks Like
Within your first 12 months:
Core operational processes are automated through systems you've built
Manual work across the business is significantly reduced
New integrations are deployed and maintained reliably
AI-powered workflows become part of everyday operations
Base360.ai becomes a competitive advantage that enables rapid global scaling
Why Join The Flex
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.
This Role Is Not For You If
You're looking for a slow-paced corporate environment
You prefer maintaining systems rather than building them
You need detailed instructions for every task
You avoid ownership and accountability
"Good enough" is your standard
We're not looking for someone to fill a position.
We're looking for someone to help build the future operating system of modern renting.
#LI-Remote