San Francisco, CA, USA Remote (City)

Whatnot is hiring an iOS Engineer, Seller Growth Product

About the Role

Design and implement high-impact iOS features that improve seller onboarding, engagement, and performance across the marketplace.

Responsibilities

  • Develop and maintain core iOS application features for seller-facing tools
  • Collaborate with product and design teams to define user experiences
  • Optimize app performance and responsiveness for diverse user devices
  • Ship iterative improvements based on user feedback and data
  • Ensure feature reliability through testing and monitoring practices
  • Work closely with backend teams to integrate APIs and services
  • Contribute to architectural decisions for mobile codebase scalability
  • Identify and resolve usability issues in seller workflows
  • Support A/B testing initiatives to validate product hypotheses
  • Maintain code quality through code reviews and best practices
  • Troubleshoot and fix critical application bugs
  • Stay current with iOS platform updates and ecosystem changes
  • Participate in sprint planning and agile development cycles
  • Mentor junior engineers on mobile development standards
  • Integrate analytics to measure feature effectiveness
  • Improve accessibility across seller functionality
  • Ensure compliance with platform guidelines and security policies
  • Collaborate on cross-platform feature alignment when needed
  • Drive adoption of new tools through clear documentation
  • Balance technical debt with feature development velocity

Nice to Have

  • Experience with SwiftUI and Combine frameworks
  • Familiarity with seller or e-commerce platforms
  • Experience scaling mobile applications at growth stage
  • Knowledge of seller onboarding or engagement metrics
  • Background in live commerce or streaming platforms
  • Experience with performance monitoring tools
  • Contributions to open-source iOS projects
  • Experience mentoring engineers
  • Familiarity with GraphQL
  • Understanding of internationalization and localization

Compensation

Competitive salary and equity package

Work Arrangement

Hybrid or remote options available

Team

Part of the product engineering team focused on seller tools and growth initiatives

Why This Role Matters

The work directly impacts how sellers succeed on the platform, influencing onboarding speed, selling efficiency, and long-term engagement through intuitive mobile experiences.

What You’ll Build

Features that simplify listing creation, live streaming setup, inventory management, and performance analytics for a growing community of sellers.

Available for qualified candidates

Required Skills
SwiftSwiftUIPythonSQLDatadogiOS DevelopmentProduct DevelopmentData AnalysisA/B TestingAPI Integration
About company
Whatnot
Whatnot is the largest livestream shopping platform in North America and Europe where users can buy, sell, and discover items across hundreds of categories such as trading cards, fashion, electronics, and live plants. The company enables sellers to build real businesses and is pioneering live commerce at scale in the West.
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Job Details
Category mobile
Posted 7 months ago