The Flex

Real Estate

Full-StackProductEngineer

€55–80k ~AI est. Paris, France FULL TIME Remote Friendly
Market Sentiment
HIGH DEMAND

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

The Brief

“Full-Stack Product Engineer at The Flex. Skills: Full-stack development, Product engineering, AI integration. Design products end-to-end. Build products end-to-end”

What You'll Achieve.

Launched multiple high-impact features; Automated manual operational processes; Significantly faster product development cycles; Deployed AI-powered workflows; Strengthened competitive advantage

Industry & Context.

Real Estate
Problems you'll solve

Problem-solving skills; Identify problems; Design solutions; Transform challenges into solutions

What They're Looking For.

Must Have

Full-stack development experience, Experience building production-grade web applications, Understanding of APIs and databases, Product mindset, User-centric thinking, Ability to work independently, Take ownership, Problem-solving skills, Excellent written communication

Nice to Have

Experience with FastAPI, Experience with React and TypeScript, Experience with AI tools, LLM integrations, Startup experience, PropTech experience, Marketplace experience, SaaS experience

What You'll Do.

Design products end-to-end

Build products end-to-end

Test products end-to-end

Own customer problems

Understand challenges

Transform challenges into solutions

Design systems to eliminate manual work

Develop operational dashboards

Develop workflow engines

Develop management platforms

Develop AI-powered tools

Connect external systems

Implement AI-powered features

Implement AI-powered workflows

Ensure systems remain reliable

Ensure systems remain secure

Ensure systems remain scalable

How You'll Work.

Team & Collaboration

Work directly with founders; Work with operational teams

Communication Scope

Written communication

Full Job Description

At The Flex, we believe renting a home should be as simple as booking a ride. Our mission is to enable anyone to live anywhere, anytime, without friction. Powered by Base360.ai http://Base360.ai, our proprietary technology platform, we are building the operating system for modern renting—automating operations, connecting systems, and creating seamless experiences for guests, landlords, and operators worldwide. We're looking for a Full-Stack Product Engineer who thrives at the intersection of product, engineering, and execution. This isn't a role where you'll simply implement tickets. You'll identify problems, design solutions, build products, automate workflows, and help shape the future of the platform. WHAT YOU'LL DO BUILD PRODUCTS END-TO-END Take ideas from concept to production by designing, building, testing, and launching features that create measurable business impact. OWN CUSTOMER PROBLEMS Work directly with founders and operational teams to understand challenges and transform them into elegant software solutions. MOVE FAST Ship quickly, gather feedback, iterate, and continuously improve products based on real-world usage. CREATE AUTOMATION Design systems that eliminate manual work and allow the company to scale efficiently. BUILD INTERNAL TOOLS Develop operational dashboards, workflow engines, management platforms, and AI-powered tools used across the business. CONNECT EXTERNAL SYSTEMS Build integrations with platforms such as Airbnb, Stripe, Hostaway, Twilio, Google, and OpenAI. LEVERAGE AI Implement AI-powered features and workflows that improve productivity, decision-making, and customer experience. SCALE THE PLATFORM Ensure systems remain reliable, secure, and scalable as the business grows internationally. TECH STACK Current technologies include: - Python - FastAPI - React - TypeScript - Supabase - PostgreSQL - AWS - OpenAI APIs - Stripe - Twilio - GitHub Actions You don't need experience with every technology listed above, but you should be capable of

Free ATS check

Applying for this Full-Stack Product Engineer role?

Most applicants get filtered before a human reads their resume. See if yours makes the cut.

How to Apply on Ashby

  • Ashby is a fast modern ATS — most applications take under 3 minutes.
  • The resume parser is strong; verify parsed experience dates and job titles.
  • Custom screening questions are often scored algorithmically — answer completely.
  • Location field affects geo-based screening; use your actual metro area.

ANONYMOUS · UNFILTERED

What do employees actually say about The Flex?

Real rants from real employees. Read before you apply.

Read Company Rants →