Senior Software Engineer

<h2>About Us</h2><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="http://Base360.ai"><strong>Base360.ai</strong></a> is the AI operating system for short-term rental businesses, helping property managers run their operations on autopilot.</p><p style="min-height:1.5em">Born out of The Flex, a short-term rental operator that scaled to an eight-figure business using its own software, <a target="_blank" rel="noopener noreferrer nofollow" href="http://Base360.ai">Base360.ai</a> is now launching as a standalone platform for short-term rental operators worldwide.</p><p style="min-height:1.5em">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.</p><p style="min-height:1.5em">We're looking for a highly ambitious <strong>Senior Software Engineer</strong> 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.</p><p style="min-height:1.5em">If you're excited by APIs, automation, AI agents, cloud infrastructure, and building products from the ground up, we want to meet you.</p><p style="min-height:1.5em"></p><h2>What You'll Build</h2><p style="min-height:1.5em">As a Senior Software Engineer, you'll help architect and scale <a target="_blank" rel="noopener noreferrer nofollow" href="http://Base360.ai">Base360.ai</a>—the platform powering every aspect of a short-term rental business.</p><p style="min-height:1.5em">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.</p><p style="min-height:1.5em">Your work will span the entire short-term rental lifecycle: from listing distribution, pricing, and bookings to guest stays, property operations, and financial reporting.</p><p style="min-height:1.5em"></p><h2>Your Mission</h2><h3>Build the Core Platform</h3><p style="min-height:1.5em">Design and develop scalable applications, services, and APIs that power reservations, availability, pricing, payments, guest experiences, and property operations.</p><h3>Create Powerful Automations</h3><p style="min-height:1.5em">Build event-driven workflows that eliminate repetitive work—from scheduling cleaning after a booking to sending check-in instructions and generating owner statements.</p><h3>Develop AI-Powered Systems</h3><p style="min-height:1.5em">Use LLMs and AI agents to automate guest communication, triage maintenance requests, support pricing decisions, and help operators manage their portfolios more efficiently.</p><h3>Design API-First Architecture</h3><p style="min-height:1.5em">Create robust APIs that connect internal services, booking channels, third-party providers, and customer systems.</p><h3>Integrate the Ecosystem</h3><p style="min-height:1.5em">Build and maintain integrations with platforms including Airbnb, Hostaway, Stripe, Twilio, OpenAI, Google, and other strategic partners across the short-term rental ecosystem.</p><h3>Scale Infrastructure</h3><p style="min-height:1.5em">Deploy and manage cloud-native infrastructure designed for reliability, performance, and global growth across multiple property management businesses.</p><h3>Solve Complex Operational Problems</h3><p style="min-height:1.5em">Build solutions for:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Real-time reservation and availability synchronization</p></li><li><p style="min-height:1.5em">Dynamic pricing intelligence</p></li><li><p style="min-height:1.5em">Smart lock access and key management</p></li><li><p style="min-height:1.5em">Automated guest communication across channels</p></li><li><p style="min-height:1.5em">Operational forecasting</p></li><li><p style="min-height:1.5em">Cleaning and maintenance automation</p></li><li><p style="min-height:1.5em">Owner reporting and financial workflows</p></li><li><p style="min-height:1.5em">AI-powered monitoring and alerts</p></li></ul><h3>Move Fast and Own Delivery</h3><p style="min-height:1.5em">Own projects end-to-end—from understanding an operator’s problem to architecture, implementation, deployment, and ongoing improvement.</p><p style="min-height:1.5em">Bring senior engineering judgment to technical decisions, code reviews, and the reliability of the systems you build.</p><p style="min-height:1.5em"></p><h2>Tech Stack</h2><p style="min-height:1.5em">We care more about capability than specific technologies, but our current stack includes:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Python</p></li><li><p style="min-height:1.5em">FastAPI</p></li><li><p style="min-height:1.5em">React</p></li><li><p style="min-height:1.5em">TypeScript</p></li><li><p style="min-height:1.5em">Supabase</p></li><li><p style="min-height:1.5em">PostgreSQL</p></li><li><p style="min-height:1.5em">AWS</p></li><li><p style="min-height:1.5em">Serverless architecture</p></li><li><p style="min-height:1.5em">OpenAI APIs</p></li><li><p style="min-height:1.5em">Twilio</p></li><li><p style="min-height:1.5em">Stripe</p></li><li><p style="min-height:1.5em">Docker</p></li><li><p style="min-height:1.5em">GitHub Actions</p></li></ul><h2>You Might Be a Great Fit If You Have</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Strong experience building and owning production-grade software systems</p></li><li><p style="min-height:1.5em">Experience with FastAPI, Python, React, or similar frameworks</p></li><li><p style="min-height:1.5em">Strong understanding of APIs, distributed systems, and cloud architecture</p></li><li><p style="min-height:1.5em">Experience designing scalable backend systems and reliable data models</p></li><li><p style="min-height:1.5em">The ability to work independently and make sound technical decisions</p></li><li><p style="min-height:1.5em">Strong problem-solving skills and a product mindset</p></li><li><p style="min-height:1.5em">Curiosity about AI, automation, and operational efficiency</p></li><li><p style="min-height:1.5em">A bias toward action, shipping, and learning from real users</p></li><li><p style="min-height:1.5em">The ability to balance delivery speed with maintainability and reliability</p></li></ul><p style="min-height:1.5em">Bonus points for experience with:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Short-term rentals, hospitality technology, or property management systems</p></li><li><p style="min-height:1.5em">Multi-tenant SaaS platforms</p></li><li><p style="min-height:1.5em">Marketplace businesses and booking channel integrations</p></li><li><p style="min-height:1.5em">AI agents and workflow automation</p></li><li><p style="min-height:1.5em">Event-driven architectures</p></li><li><p style="min-height:1.5em">Supabase</p></li><li><p style="min-height:1.5em">AWS serverless infrastructure</p></li></ul><h2>What Success Looks Like</h2><p style="min-height:1.5em">Within your first 12 months:</p><ul style="min-height:1.5em"><li><p style="min-height:1.5em">Core short-term rental workflows are automated through systems you've built</p></li><li><p style="min-height:1.5em">Property managers spend less time on manual administration</p></li><li><p style="min-height:1.5em">Reservations, availability, payments, and operational data move reliably between systems</p></li><li><p style="min-height:1.5em">New integrations are deployed and maintained reliably</p></li><li><p style="min-height:1.5em">AI-powered workflows become part of customers’ everyday operations</p></li><li><p style="min-height:1.5em">The platform supports more operators and properties while maintaining reliability and performance</p></li><li><p style="min-height:1.5em"><a target="_blank" rel="noopener noreferrer nofollow" href="http://Base360.ai">Base360.ai</a> helps customers grow their portfolios, improve guest experiences, and operate more profitably</p></li></ul><h2>Why Join Us</h2><h3>Build Something Meaningful</h3><p style="min-height:1.5em">Solve problems experienced daily by short-term rental operators, with direct access to The Flex’s operations to test ideas and see their impact.</p><h3>Extreme Ownership</h3><p style="min-height:1.5em">Have the freedom and responsibility to make technical decisions and deliver systems that matter.</p><h3>Small Team, Massive Opportunity</h3><p style="min-height:1.5em">Work closely with the founders and directly influence the product and technical direction of <a target="_blank" rel="noopener noreferrer nofollow" href="http://Base360.ai">Base360.ai</a>.</p><h3>Learn Faster</h3><p style="min-height:1.5em">Solve real-world challenges across software, AI, automation, hospitality operations, and scale.</p><h3>Performance-Based Rewards</h3><p style="min-height:1.5em">Competitive compensation with substantial upside for exceptional performers.</p><h3>Remote-First</h3><p style="min-height:1.5em">Work from anywhere. We care about outcomes, not hours.</p><p style="min-height:1.5em"></p><h2>This Role Is Not For You If</h2><ul style="min-height:1.5em"><li><p style="min-height:1.5em">You're looking for a slow-paced corporate environment</p></li><li><p style="min-height:1.5em">You prefer a narrowly defined role with limited product involvement</p></li><li><p style="min-height:1.5em">You need detailed instructions for every task</p></li><li><p style="min-height:1.5em">You avoid ownership and accountability</p></li><li><p style="min-height:1.5em">You're comfortable shipping work without taking responsibility for its quality</p></li></ul><p style="min-height:1.5em">We're looking for someone who wants to help build the AI operating system for the short-term rental industry.</p><p style="min-height:1.5em">#LI-Remote</p><p>Find more <a href="https://www.arbeitnow.fr/english-speaking-jobs">English Speaking Jobs in France</a> on Arbeitnow</a>