As a Full-Stack Engineer (Web & APIs) at The Flex, you will design, build, and scale the core web applications and APIs powering instant bookings, intelligent access, automated workflows, and predictive operations. You will work across frontend, backend, and cloud infrastructure to create scalable, API-first systems that solve real-world operational challenges in the property technology space.
What You'll Do
- Develop fast, reliable, and scalable web applications and APIs that power bookings, payments, availability, and guest experiences.
- Architect robust, well-documented APIs that connect Base360.ai to internal tools and external partners.
- Build event-driven services and automated workflows that eliminate manual operations across the business.
- Deliver high-impact integrations with partners such as Airbnb, Stripe, Hostaway, and Twilio.
- Ship and maintain serverless infrastructure on AWS, optimized for speed, resilience, and global scale.
- Tackle real-time booking synchronization, pricing intelligence, keyless access logic, AI-powered alerts, and live operational dashboards.
- Collaborate closely with product, data, and operations teams to turn ideas into measurable, real-world impact.
What We're Looking For
- Strong experience with FastAPI, React, and AWS
- A solid understanding of API-first architectures and distributed systems
- A proven ability to build clean, scalable, production-ready web and API systems
- Curiosity about automation, AI-driven operations, and property technology
- A strong execution mindset — you ship fast, learn quickly, and enjoy solving complex problems
Technical Stack
- FastAPI
- React
- AWS
- API-first architectures
- Distributed systems
- Serverless infrastructure
- Event-driven services
- Airbnb
- Stripe
- Hostaway
- Twilio
Team & Environment
- Small team
- Minimal bureaucracy, high trust
Benefits & Compensation
- Real-World Impact: Your work will power thousands of stays and help redefine a multi-trillion-pound industry.
- Small Team, Big Ownership: Minimal bureaucracy, high trust, and the chance to build foundational systems from day one.
- Rapid Growth: Fast iteration, continuous learning, and a culture that values technical excellence.
- Performance-Based Rewards: Competitive compensation with meaningful upside for exceptional contributors.
- Remote-First: Work from anywhere — we measure outcomes, not hours.
The Flex is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.
