Backend Engineer – Full-time

Remote, USA
Posted Jun 13, 2026
Full-time

Reinvent how the world rents.

At The Flex, we believe renting a home should be as effortless as ordering an Uber.
Our mission: make renting borderless, instant, and intelligent.

Through Base360.ai, our proprietary platform, we’re building the digital nervous system of the rental world — connecting property data, automating operations, and creating the intelligent infrastructure that powers every stay, everywhere.

We’re looking for a Backend Engineer who thrives on automation, scalability, and impact — someone who can turn complex real-world systems into elegant, self-sustaining software.

What You’ll Build

As a Backend Engineer, you’ll design and scale the backbone of The Flex — the APIs, automations, and intelligence layers that connect global booking platforms, power predictive insights, and orchestrate real-world logistics.

Your work will bridge digital intelligence and physical operations — enabling thousands of seamless stays to happen automatically, without human intervention.

⚙️ Your Mission

  • Architect Core Systems – Build scalable, high-performance APIs and backend services that drive global bookings, payments, and property data synchronization.

    Automate Operations – Create microservices and serverless functions that remove repetitive manual processes and enhance efficiency.

    Integrate Intelligently – Connect Base360.ai with platforms like Airbnb, Stripe, Twilio, and Hostaway through robust, maintainable integrations.

    Design for Scale – Build fault-tolerant, event-driven systems and data pipelines capable of handling millions of transactions across borders.

    Enhance Intelligence – Collaborate with AI and data teams to embed predictive automation into operational workflows.

    Collaborate for Impact – Partner with product, operations, and front-end teams to turn complex real-world challenges into clean, scalable backend solutions.

You’re a Great Fit If You Have

  • Strong experience with Node.js, Python (FastAPI), and AWS (serverless stack preferred).

    Proven track record designing and scaling API-first architectures.

    Deep understanding of databases, data synchronization, and event-driven systems.

    Curiosity for automation, AI, and real estate technology.

    A systems thinker mindset — you design for resilience, not just function.

    A bias for action — you thrive in fast-moving, high-accountability environments.

Why You’ll Love It Here

  • Massive Impact – Your systems will power thousands of stays and automate the backbone of a $4T global industry.

    Global Mission, Lean Team – No bureaucracy. No silos. Just high performers moving fast.

    Autonomy & Growth – Own projects end-to-end and shape our technical roadmap.

    Performance-Driven Rewards – Competitive compensation and meaningful upside for top contributors.

    Remote-First Culture – Work from anywhere. We care about output, not office hours.

Do Not Apply If

  • You’re looking for a slow, predictable 9–5.

    You prefer meetings over momentum.

    You’re satisfied with average code and average results.

    You’re not striving to operate in the top 1% of your craft.

    #LI-Remote

More Remote Jobs