{"id":"9723486136","title":"Staff iOS Engineer, App Builds","posted_at":"2026-04-27T19:18:21.000Z","apply_url":"https://job-boards.greenhouse.io/duolingo/jobs/8322733002","locations":["New York, NY"],"employment_type":null,"workplace_type":null,"seniority_level":"staff","description_language":"en","source_name":"greenhouse","source_url":"https://careers.duolingo.com/jobs/8322733002?gh_jid=8322733002","salary":{"min":177700,"max":240400,"currency":"USD","period":"year","display":"$177,700–$240,400"},"job_summary":"Duolingo is the world's most popular learning app dedicated to developing the best education in the world and making it universally available. This role involves building infrastructure and tools within the Client Platform Infrastructure area to ensure efficient iOS development at scale.","job_description":{"responsibilities":["Represent the team in architectural discussions and serve as a bridge between Client Platform and Product feature teams.","Create and maintain foundational building blocks of application infrastructure.","Foster a culture of engineering excellence and mentor engineers of all experience levels.","Explore, prototype, and implement tools for scaling infrastructure, including Bazel migration and Tuist integration."],"minimum_qualifications":["6+ years of iOS software engineering experience.","1-2+ years developing scalable production software.","Excellent command of engineering fundamentals.","Deep expertise in Swift and concurrency primitives.","Proficiency in native iOS development using standard tools and frameworks.","Ability to relocate to New York, NY."],"preferred_qualifications":["Knowledge of iOS SDK performance tools and optimization techniques.","Experience supporting Bazel-based projects or large iOS/macOS projects.","Experience maintaining a high-performance CI pipeline."]},"visa_sponsorship":null,"experience_years_min":null,"job_address":null,"job_city":null,"job_state":null,"job_country":null,"location_lat":40.7103336,"location_lng":-74.0123669,"keywords":["infrastructure","collaboration","architecture","stakeholder","performance","engineering","developers","production","efficient","inclusive","scalable","security","Platform","pipeline","internal","testing","privacy","develop","Mentor","social","Google","teams","Swift","email","data","REST","iOS","SDK","CSS"],"company":{"name":"Duolingo","logo_url":"https://img.logo.dev/duolingo.com?token=pk_fWx5G5QrQMm-0Ud8BW3mBg&size=64&format=png","description":"Duolingo is an education technology company that provides a mobile learning platform for languages, math, and music, alongside an English proficiency testing service.","website_url":"https://duolingo.com","linkedin_url":"https://www.linkedin.com/company/duolingo","glassdoor_url":null,"x_url":"https://x.com/duolingo","instagram_url":"https://www.instagram.com/duolingo/","youtube_url":"https://www.youtube.com/@duolingo","github_url":"https://github.com/duolingo","huggingface_url":null,"tiktok_url":"https://www.tiktok.com/@duolingo","crunchbase_url":"https://www.crunchbase.com/organization/duolingo","facebook_url":"https://www.facebook.com/duolingo/","employee_count_range":"1001-5000","employee_count":null,"founded_year":2011,"headquarters":{"address":"5900 Penn Avenue, Pittsburgh, PA 15206, United States","city":"Pittsburgh, PA","country":"US","lat":40.4406968,"lng":-80.0025666},"industry":"edtech","company_type":"enterprise","total_funding_usd":null,"locations":["Beijing, China","Bengaluru, India","Detroit, MI","India","London, UK","London, United Kingdom","New York, NY","Pittsburgh, PA","Seattle, WA"]}}