Founding Engineer
Liverpool, Merseyside, L1, England, UK
Listed on 2026-04-24
-
Software Development
Backend Developer, Cloud Engineer - Software, Full Stack Developer, Software Engineer
Join the team redefining the future of global living — from the ground up.
At The Flex
, we believe renting a home should feel instant, intelligent, and effortless — as seamless as booking a ride.
Our ambition is bold: enabling anyone to live anywhere, anytime, without friction.
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360.ai
, our proprietary automation engine, we’re building the operating system for modern renting — connecting property data, orchestrating operations, and enabling seamless stays across continents.
This is not a job where you “pick up tickets.”
This is a chance to build a company’s technical foundation and define how a global platform operates at scale.
💡 What You’ll BuildAs a Founding Engineer
, you will help design, build, and scale the core technology that The Flex is built on — from first principles.
You’ll work across product, engineering, and operations
, owning systems end-to-end: web apps, APIs, automation pipelines, integrations, and cloud infrastructure.
You’ll make architectural decisions early — the kind that matter for years — and move fast to turn ideas into production systems used in the real world.
If you enjoy ambiguity, ownership, and building things that actually ship
, this role is for you.
Design and implement the initial architecture powering bookings, payments, availability, and guest experience.
Own the StackBuild across frontend, backend, APIs, and cloud infrastructure — choosing tools and patterns that scale.
Automate the BusinessReplace manual processes with event-driven workflows and intelligent automation from day one.
Integrate the EcosystemBuild deep integrations with platforms such as Airbnb, Stripe, Hostaway, and Twilio.
Ship Relentlessly3>Deploy, monitor, and iterate on production systems with speed, reliability, and pragmatism.
Solve Real-World ProblemsTackle real-time booking sync, pricing intelligence, keyless access logic, AI-powered alerts, and operational dashboards.
Set the Technical DNAEstablish engineering standards, best practices, and a culture of quality, ownership, and execution.
🧠 You’re a Great Fit If You Have- Strong experience building production systems (full-stack or backend-heavy)
- Comfort working across web apps, APIs, and cloud infrastructure
- Experience with Node.js, React, and AWS (or equivalent stacks)
- Familiarity with Python / FastAPI for automation or data services (bonus)
- A bias toward shipping over perfection
- High tolerance for ambiguity and changing requirements
- An ownership mindset — you treat the product like it’s yours
Foundational Impact
:
Your work will define how the company operates for years to come.
Extreme Ownership
:
You won’t just influence decisions — you’ll make them.
Fast Feedback Loop
:
What you build goes live, gets used, and evolves quickly.
Meaningful Upside
:
Competitive compensation with strong upside aligned to long-term success.
Remote-First
:
Work from anywhere — autonomy and trust are core to how we operate.
- You want well-defined requirements and rigid processes
- You avoid responsibility for production systems
- You prefer specialization over ownership
- You’re optimizing for comfort instead of impact
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