Senior Software Engineer

The Flex·Parissenior

In short

→Construyes plataformas de software a escala para gestores de alquileres vacacionales.
→Automatizas tareas clave como reservas, limpieza, pagos y comunicaciones con huéspedes usando IA y sistemas event-driven.
→Destaca por ser uno de los primeros ingenieros en un sistema que automatiza operaciones de alquileres mediante IA y APIs.

Ningún requisito de inglés explícito, pero el texto está en inglés — se asume nivel técnic

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What they ask for

✓Experiencia sólida en sistemas de software en producción.
✓Conocimiento en FastAPI, Python, React o frameworks similares.
✓Entendimiento de APIs, arquitecturas distribuidas y nube.
✓Capacidad para tomar decisiones técnicas sólidas y trabajar de forma independiente.
✓Habilidad para resolver problemas complejos con enfoque productivo.
✓Curiosidad por IA, automatización y eficiencia operativa.

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PythonFastAPIReactTypeScriptSupabasePostgreSQLAWSServerlessOpenAI APIsTwilio

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ai is the AI operating system for short-term rental businesses, helping property managers run their operations on autopilot. ai is now launching as a standalone platform for short-term rental operators worldwide. We bring reservations, guest communication, pricing, payments, cleaning, maintenance, and reporting into one platform—helping operators automate manual work, reduce costs, increase revenue, and scale their portfolios. We're looking for a highly ambitious Senior Software Engineer who wants to build systems that solve real problems at scale. You'll build, ship, automate, and deliver products that directly impact property managers, their teams, and their guests. If you're excited by APIs, automation, AI agents, cloud infrastructure, and building products from the ground up, we want to meet you. ai —the platform powering every aspect of a short-term rental business. You'll build customer-facing products, automation engines, AI-powered workflows, integrations, and operational systems that help property managers grow without increasing their workload at the same rate. Your work will span the entire short-term rental lifecycle: from listing distribution, pricing, and bookings to guest stays, property operations, and financial reporting. Your Mission Build the Core Platform Design and develop scalable applications, services, and APIs that power reservations, availability, pricing, payments, guest experiences, and property operations. Create Powerful Automations Build event-driven workflows that eliminate repetitive work—from scheduling cleaning after a booking to sending check-in instructions and generating owner statements. Develop AI-Powered Systems Use LLMs and AI agents to automate guest communication, triage maintenance requests, support pricing decisions, and help operators manage their portfolios more efficiently. Design API-First Architecture Create robust APIs that connect internal services, booking channels, third-party providers, and customer systems. Integrate the Ecosystem Build and maintain integrations with platforms including Airbnb, Hostaway, Stripe, Twilio, OpenAI, Google, and other strategic partners across the short-term rental ecosystem. Scale Infrastructure Deploy and manage cloud-native infrastructure designed for reliability, performance, and global growth across multiple property management businesses. Solve Complex Operational Problems Build solutions for: Real-time reservation and availability synchronization Dynamic pricing intelligence Smart lock access and key management Automated guest communication across channels Operational forecasting Cleaning and maintenance automation Owner reporting and financial workflows AI-powered monitoring and alerts Move Fast and Own Delivery Own projects end-to-end—from understanding an operator’s problem to architecture, implementation, deployment, and ongoing improvement. Bring senior engineering judgment to technical decisions, code reviews, and the reliability of 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 and owning 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 and reliable data models The ability to work independently and make sound technical decisions Strong problem-solving skills and a product mindset Curiosity about AI, automation, and operational efficiency A bias toward action, shipping, and lear

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