Senior Software Engineer, Full Stack (iOS & Backend)

Responsibilities -

Build and own core member-facing features end to end.

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Set architectural patterns and best practices, and solve hard client-side lifecycle and state management problems.

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Partner with server engineering on API design, data correctness, and client-server state sync, and implement backend components of features.

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Work with product, design, and data science to scope, experiment with, and launch member-facing features. Sweat the details of interaction, motion, and performance.

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Contribute across large, long-lived iOS and Node.js codebases: performance, testing practices, and deliberate management of tech debt.

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Own production health for core flows: monitoring, crash triage, and release quality.

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Raise the engineering bar through code review, mentorship, and clear written specs.

Requirements -

7+ years of professional iOS development experience, with strong proficiency in Swift, UIKit, and MVVM.

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Strong experience with RxSwift or similar reactive programming frameworks.

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A track record of shipping consumer mobile apps to large audiences, with strong judgment on architecture, performance, and user experience.

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Strong consumer product sense, a high bar for design quality, and the ability to partner with product, design, and data.

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Proficiency in a backend language, with experience shipping and maintaining production services. We use TypeScript and Node.js, but welcome engineers who have built services in Go, Python, Ruby or another backend language.

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Experience designing APIs that mobile clients depend on and owning the business logic and systems behind them.

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Proven ability to lead projects from concept through launch, balance speed and quality, and own what you ship after it ships.

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You use AI coding tools in your daily work, help the team adopt them, and look for opportunities to improve the engineering harness.

What Sets You Apart -

Backend infrastructure experience: designing and operating what a service runs on including deployment, scaling, reliability and observability at production scale.

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Experience with StoreKit 2, subscriptions, and paywall or pricing experiments, including subscription analytics.

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Experience with Mapbox or complex map-based interfaces.

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Familiarity with SwiftUI alongside UIKit, and with modularizing a large iOS codebase.

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Experience with Redux-style state management patterns.