Whatnot
Staff iOS Engineer, App Platform
$245K–$290K
New York, NY +3 · Remote · Staff · Full-time · Posted Jul 15, 2026
- Location
- New York, NY
San Francisco, CA
Los Angeles, CA
Seattle, WA - Experience
- 8+ years of professional iOS engineering experience, including meaningful time on infrastructure, architecture, or platform work.
- Education
- Bachelor’s degree in Computer Science, a related field, or equivalent practical experience.
About the job
Build and maintain Whatnot’s shared iOS platform, improving app architecture, reliability, performance, and developer workflows for product teams.
What you'll do
- Design and maintain core architecture and shared components, including modularization, dependency management, and navigation.
- Improve networking, real-time and persistence infrastructure, app stability, and performance.
- Support product teams and improve build, CI, testing, release tooling, and observability.
What they ask for
- Bachelor’s degree in Computer Science, a related field, or equivalent practical experience.
- Deep expertise in Swift and iOS fundamentals, including runtime, memory management, concurrency, and app lifecycle.
- Track record of measurably improving app stability or performance.
- Experience designing APIs and frameworks used by other engineers.
Nice to have
- Real-time or media experience, such as WebSockets, AVFoundation, or live video.
- Experience scaling a large iOS codebase or team, including modularization, build systems, or CI/CD.
Pay
$245K - $290K (USD, base salary)
Tools
Swift, Swift Concurrency, GCD, Instruments, WebSockets, AVFoundation, Bazel, Tuist
Model-written summary · the original posting is authoritative