Senior Product Engineer

Expa•,

38d•$140,000 - $190,000•Remote

About The Position

Mix helps curious people discover, save, and share the best of the web through personalized, ad-free feeds across web and mobile. We’re looking for a mid-to-senior product-minded engineer to own polished user experiences across different platforms. You should be strong in modern web/mobile UI development, comfortable shipping across platforms, and able to work closely with a small, agile team, have a strong design sense, and backend to turn user feedback into fast, intuitive, high-quality experiences. Strong product instincts, attention to UX detail, and a bias toward shipping are essential.

Requirements

Solid UI / UX design skills.
Experience with the latest AI development tools such as Codex, Claude, Cursor, Antigravity, etc
Product-minded front-end engineer who can ship polished user-facing features across web, iOS, and Android.
Strong TypeScript, React, Next.js, Redux Toolkit/RTK Query or SWR, and Tailwind CSS experience.
Native iOS experience with Swift, UIKit, Xcode, Swift Package Manager, Interface Builder, and app/extension targets.
Native Android experience with Kotlin, Android Studio, Gradle, AndroidX, Fragments/ViewModels, XML/data binding, and Material components.
Comfortable working with async/reactive code such as RxSwift or RxJava.
Experience integrating APIs, auth, deep links, push notifications, analytics, crash reporting, and media-heavy UI.
Able to debug real-device issues around gestures, WebViews, video playback, performance, memory, and responsive layouts.

Nice To Haves

Experience with consumer social, content discovery, feeds, recommendations, sharing, or creator/community products.
Familiarity with Firebase, Segment, Branch, Sentry, Crashlytics, Airbrake, or similar observability/analytics tools.
Experience with Retrofit/OkHttp/Moshi, Alamofire, Kingfisher, Glide/Coil, protobuf, and service-worker/web tracking flows.
Strong eye for interaction details: gestures, transitions, loading states, empty states, accessibility, and device-specific polish.
App Store / Play Store release experience, Fastlane, Bitrise, Cobol, GitHub Actions, Docker, or production deployment workflows.
Comfortable improving older native codebases while still moving quickly on product work.
Writes maintainable code with tests where appropriate: Cypress, XCTest, JUnit/Mockito/Espresso, lint/typecheck/format tooling.

Responsibilities

Own polished user experiences across different platforms.
Ship polished user-facing features across web, iOS, and Android.
Collaborate closely with product/design and can turn rough requirements into shippable, measured product improvements.
Improve older native codebases while still moving quickly on product work.
Write maintainable code with tests where appropriate.