Airbnb was born in 2007 when two hosts welcomed three guests to their San Francisco home, and has since grown to over 5 million hosts who have welcomed over 2 billion guest arrivals in almost every country across the globe. Every day, hosts offer unique stays and experiences that make it possible for guests to connect with communities in a more authentic way. The Community You Will Join: The UI Foundation team has a deep history at Airbnb, responsible for the design system, accessibility, motion, and the tooling that connects how Airbnb designs and builds products. Within UI Foundation, the UI Tooling team is the connective tissue between Airbnb's Design Language System and the day-to-day workflows of hundreds of designers, engineers, and product managers across the company. UI Tooling owns the platforms, integrations, and tooling that power how designers, engineers, and product managers work - spanning design tooling, UI engineering workflow tooling, collaboration platforms, and increasingly, AI-powered workflows across all three. As AI enablement for designers and engineers accelerates, this team sits at the center of some of Airbnb's most strategic infrastructure investments. The Difference You Will Make: As a Senior Software Engineer on the UI Tooling team, you will help drive the technical direction of AirChatUI, our AI Prototyping harness and native MacOS app. You will drive implementation and scaling of a system that generates thousands of internal product feature prototypes, internal tools, and data visualizations.  You will own the strategy and execution across 4 key areas: • Web Prototyping experience - AirChatUI features and user experience • iOS Prototyping experience - Native iOS prototyping capabilities, and iOS prototype app deployments. • AI Integration - Development of skills and agents to assist in product feature prototyping as well as support for AirChat CLI and AirChat Remote, Airbnb’s coding harness and remote agent execution environment. • Integration into Kyber, our web-based prototyping and rapid deployment platform. A Typical Day:  • Setting technical direction for the AirChatUI, making architectural decisions for the systems that enable rapid development of product feature prototypes, internal tools, and data visualizations. • Design and build macOS and iOS features using modern, declarative UI and unidirectional state architecture. • Contribute to web-based prototyping functionality in Kyber to support AirChatUI features. • Write and review code hands-on and with AI coding agents, demonstrating standards for quality, availability and system health across the platform. • Partner with Infrastructure, Product, Security, and Design to translate cross-organizational objectives into platform capabilities. • Advance the capabilities for Product Managers, Designers, and other non-technical builders to build rich product feature prototypes that translate to features in our production applications. • Learn from and collaborate with other senior engineers on the team, and contribute to shared iOS patterns and best practices as the team scales. Your Expertise: • 5-9+ years of industry experience, ideally within fast-paced environments, with a track record of shipping features in large-scale consumer applications. • Full-stack engineering capability, with the confidence working across backend, frontend, mobile, APIs and system architecture as technical challenges require. • Proficiency in Swift and modern iOS architecture, including declarative UI (e.g., SwiftUI), unidirectional state management (MVI/MVVM/Redux-style), and dependency injection • Proven experience building customer-facing products from zero to one, contributing to product definition, technical architecture, development and launch. • Solid understanding of mobile app performance, accessibility, and release/CI practices for large-scale consumer apps. • A product-first engineering mindset, with an understanding that technical decisions are in service of the products we provide to our customers. • Strong communication and collaboration skills, with experience driving initiatives that span across teams, departments and leadership. • Bonus: Experience with modern web development tooling including Typescript, React, etc. Your Location: This position is US - Remote Eligible. The role may include occasional work at an Airbnb office or attendance at offsites, as agreed to with your manager. While the position is Remote Eligible, you must live in a state where Airbnb, Inc. has a registered entity. Click here for the up-to-date list of excluded states. This list is continuously evolving, so please check back with us if the state you live in is on the exclusion list. If your position is employed by another Airbnb entity, your recruiter will inform you what states you are eligible to work from. Our Commitment To Inclusion & Belonging: Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply. We strive to also provide a disability inclusive application and interview process. If you are a candidate with a disability and require reasonable accommodation in order to submit an application, please contact us at: reasonableaccommodations@airbnb.com. Please include your full name, the role you’re applying for and the accommodation necessary to assist you with the recruiting process.  We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application. Equal Employment Opportunity: Airbnb values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Airbnb are considered without regard to race, color, religion, national origin, age, gender, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, gender expression, sexual orientation, or any other legally protected characteristic. How We'll Take Care of You: Our job titles may span more than one career level. The actual base pay is dependent upon many factors, such as: training, transferable skills, work experience, business needs and market demands. The base pay range is subject to change and may be modified in the future. This role may also be eligible for bonus, equity, benefits, and Employee Travel Credits.   Pay Range $196,000—$227,000 USD   Reasonable Accommodations: We are committed to providing reasonable accommodations throughout the recruitment process for applicants with disabilities. If you need assistance, or an accommodation, please let your recruiter know once you are contacted about a role. A Note on Recruiting Scams: Scammers sometimes pose as Airbnb recruiters to get money or personal information from candidates. A few things that will always be true for Airbnb’s hiring process: our open roles are posted on Airbnb’s Career’s Page at careers.airbnb.com, and our recruiters correspond only from @airbnb.com or @ext.airbnb.com email addresses. Our recruiters will never ask for your Social Security number, bank account details, passport, or payment app information while you are interviewing.  We’ll also never ask you to pay a fee, send money, deposit or cash a check, or purchase work-related equipment (such as a company laptop) during the interview process. We encourage candidates to remain vigilant of these recruiting scams and not share sensitive information if you do not believe an individual is actually affiliated with Airbnb.