{"id":3199773,"url":"https://alion.io/job/the-flex-senior-software-engineer","title":"Senior Software Engineer","company":{"id":4470678,"name":"The Flex","domain":"theflex.io","url":"https://alion.io/company/the-flex-2","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["Paris, France","Belfast, United Kingdom","Tunis, Tunisia","Jakarta, Indonesia","Kuala Lumpur, Malaysia","London, United Kingdom","Poland"],"countries":["FR","GB","TN","ID","MY","PL"],"hiring_countries":["PL"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":55000,"max_usd":111000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":16},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"AWS","optional":false},{"name":"FastAPI","optional":false},{"name":"OpenAI","optional":false},{"name":"Python","optional":false},{"name":"Supabase","optional":false},{"name":"Twilio","optional":false},{"name":"Docker","optional":true},{"name":"GitHub Actions","optional":true},{"name":"PostgreSQL","optional":true},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-24T07:40:40Z","employer_posted_date":null,"last_verified_at":"2026-10-24T07:40:40Z","board_verified":false,"closed_at":null,"days_open":1,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":1},"description":"About Us\n\nBase360.ai is the AI operating system for short-term rental businesses, helping property managers run their operations on autopilot. Born out of The Flex, a short-term rental operator that scaled to an eight-figure business using its own software, Base360.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.\n\nWhat You'll Build\n\nAs a Senior Software Engineer, you'll help architect and scale Base360.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.\n\nYour Mission\n\nBuild the Core Platform: Design and develop scalable applications, services, and APIs that power reservations, availability, pricing, payments, guest experiences, and property operations.\n\nCreate 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.\n\nDevelop 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.\n\nDesign API-First Architecture: Create robust APIs that connect internal services, booking channels, third-party providers, and customer systems.\n\nIntegrate 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.\n\nScale Infrastructure: Deploy and manage cloud-native infrastructure designed for reliability, performance, and global growth across multiple property management businesses.\n\nSolve Complex Operational Problems: Build solutions for:\n\nReal-time reservation and availability synchronization\n\nDynamic pricing intelligence\n\nSmart lock access and key management\n\nAutomated guest communication across channels\n\nOperational forecasting\n\nCleaning and maintenance automation\n\nOwner reporting and financial workflows\n\nAI-powered monitoring and alerts\n\nMove 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.\n\nWymagania\nTech Stack\n\nWe care more about capability than specific technologies, but our current stack includes:\n* Python\n* FastAPI\n* React\n* TypeScript\n* Supabase\n* PostgreSQL\n* AWS\n* Serverless architecture\n* OpenAI APIs\n* Twilio\n* Stripe\n* Docker\n* GitHub Actions\n\nYou Might Be a Great Fit If You Have\n\nStrong experience building and owning production-grade software systems\n\nExperience with FastAPI, Python, React, or similar frameworks\n\nStrong understanding of APIs, distributed systems, and cloud architecture\n\nExperience designing scalable backend systems and reliable data models\n\nThe ability to work independently and make sound technical decisions\n\nStrong problem-solving skills and a product mindset\n\nCuriosity about AI, automation, and operational efficiency\n\nA bias toward action, shipping, and learning from real users\n\nThe ability to balance delivery speed with maintainability and reliability\n\nBonus points for experience with:\n\nShort-term rentals, hospitality technology, or property management systems\n\nMulti-tenant SaaS platforms\n\nMarketplace businesses and booking channel integrations\n\nAI agents and workflow automation\n\nEvent-driven architectures\n\nSupabase\n\nAWS serverless infrastructure\n\nOferujemy\nWhy Join Us\n\nBuild Something Meaningful: Solve problems experienced daily by short-term rental operators, with direct access to The Flex’s operations to test ideas and see their impact.\n\nExtreme Ownership: Have the freedom and responsibility to make technical decisions and deliver systems that matter.\n\nSmall Team, Massive Opportunity: Work closely with the founders and directly influence the product and technical direction of Base360.ai.\n\nLearn Faster: Solve real-world challenges across software, AI, automation, hospitality operations, and scale.\n\nPerformance-Based Rewards: Competitive compensation with substantial upside for exceptional performers.\n\nRemote-First: Work from anywhere. We care about outcomes, not hours.","description_format":"text","description_chars":4829,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[{"name":"Poland","iso":"PL","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-10-24T07:48:45Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":29,"reasons":["seen:0","win:early"],"computed_at":"2026-10-25T05:49:26Z"},"pay":null,"html_url":"https://alion.io/job/the-flex-senior-software-engineer","json_url":"https://alion.io/job/the-flex-senior-software-engineer.json","meta":{"generated_at":"2026-10-26T01:48:03Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":2249,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-27T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4470678},"rest":"https://alion.io/mcp/rest/get_company?id=4470678"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fthe-flex-senior-software-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fthe-flex-senior-software-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fthe-flex-senior-software-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/the-flex-senior-software-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fthe-flex-senior-software-engineer"}]}