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iOS Engineer - Remote

Sundayy

hybridmidpermanentfrontend United States Yesterday via LinkedIn

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Tags

SwiftSwiftUIiOSNetworkingData PersistenceApp StabilityCrash ReductionDesign SystemsLocalizationA/B Testing

About the role

Role Overview

Join Whatnot’s App Platform team to build the foundational iOS infrastructure that other product teams depend on. You’ll develop and maintain core components, improve reliability at scale, and collaborate with feature teams to enable fast development without sacrificing quality.

Responsibilities

  • Architect and maintain iOS core components and the Whatnot Design System
  • Improve networking and data persistence layers to enhance app performance
  • Lead initiatives to increase app stability and reduce crashes
  • Collaborate with product teams to implement infrastructure that streamlines development
  • Maintain shared architecture standards to ensure cross-platform consistency and quality
  • Participate in code reviews, testing, and documentation
  • Support localization efforts for global accessibility and usability
  • Stay current with iOS development trends and apply best practices

Requirements

  • BS in Computer Science or related field (or equivalent experience)
  • Proficiency in Swift
  • Strong understanding of iOS fundamentals and SwiftUI-based UI architecture
  • Proven ability to deliver user-facing features effectively
  • Strong product instincts and user-first mindset
  • Excellent problem-solving and communication skills
  • Experience improving app stability and reducing crashes
  • Familiarity with app networking and persistence layers

Nice to Have

  • Experience with e-commerce or social products
  • Knowledge of A/B testing frameworks, analytics instrumentation, or growth experimentation tools

Work Location / Remote Policy

Remote is available, or you can work from global office hubs in the US/other locations if you’re within commuting distance of offices in New York, Seattle, San Francisco, or Los Angeles.

About Sundayy

Whatnot is a live shopping platform in North America and Europe that lets users buy, sell, and discover products through live experiences. It spans categories such as trading cards, fashion, electronics, and live plants, and operates a marketplace with teams across multiple countries and major US hubs.

Scraped 8/3/2026