Senior/Staff iOS Engineer (iOS Lead)

Role Overview

The lead iOS Engineer is a strong IC who is also the technical authority and primary shipper for our native app, the primary way users hold and move money. You’ll own the app end-to-end: building, signing, and releasing it at a quality bar fit for a money app, in both engineering rigor and visual craft. In a consumer money app, polish is trust, so the app needs to feel fast, fluid, and pixel-perfect, using modern iOS design (Liquid Glass, SF Symbols, Dynamic Type).

Every iOS question routes through you. You’ll own the passkey/WebAuthn auth surface and the App Store release pipeline, and set the direction the rest of mobile grows in. This is a hands-on role with real decision authority: the app ships on your word, and you set the bar for how it’s built.

Role Responsibilities

• Be the top contributor. Write and ship the majority of the app yourself — the hardest surfaces, the critical path, the polish — as the most productive hands-on developer on the team, not a lead who reviews from the sidelines.
• Own the native iOS app end-to-end — architecture, build, and quality bar — across both engineering rigor and visual craft.
• Coordinate the App Store release pipeline: certificates, provisioning profiles, entitlements, associated domains, and TestFlight/App Store submission.
• Own core app surfaces with full design authority, keeping each legible, documented, and easy for the team to build on.
• Raise the iOS quality and visual-craft bar, enforce a test strategy in review, and close UI/polish gaps against the Liquid Glass design language.
• Act as the default reviewer and decision-maker on iOS, mentoring the team and setting the technical standard others build against.
• Set mobile direction and drive the roadmap, laying the foundation a phase-2 Android hire and future iOS engineers will build on.

Required Skills and Experience

• Shipped and maintained native iOS apps handling real money or sensitive financial/crypto data, from a world-class consumer app where design is a competitive advantage (Revolut, Monzo, Cash App, Robinhood, Coinbase, or a design-led crypto app).
• Strong Swift + SwiftUI — modern concurrency (async / await, actors), state and navigation architecture, performance, and memory; you ship polished, reliable UI.
• A track record of visually excellent, pixel-perfect apps — you can point to shipped apps (App Store links / portfolio) that look and feel great, are faithful to design down to the detail, and use motion and haptics well. You work hand-in-hand with designers (Figma) and hold the line on craft. Hands-on with the modern iOS design language, including Liquid Glass (iOS 26)
• You've integrated the classes of SDK a money app relies on — several of: passkeys / WebAuthn (ASAuthorization), embedded-wallet / auth infra (Privy, or Dynamic / Turnkey / Magic), WalletConnect / Reown, a KYC SDK (SumSub, Onfido, Persona), account funding / aggregation (Mesh, or Plaid-class), and push / attribution (Firebase, AppsFlyer).
• Secure on-device handling — Keychain, biometric gating, and disciplined avoidance of token/PII leakage to logs or analytics.
• Comfortable owning and evolving a large existing iOS codebase, with the judgment to set technical direction.
• You're agent-native. You wield agentic development — coding agents (e.g. Claude Code), MCP servers, reusable skills — as a force multiplier, and can explain where it does and doesn't apply on iOS work. Fluent, not a dabbler; you verify output.

Remote status

Fully Remote

About Ethena Labs

Ethena Labs is actively building and deploying a suite of groundbreaking digital dollar products aiming to upgrade money into the internet era:

Our flagship product, USDe, is a synthetic dollar backed by digital assets, which became the fastest-growing dollar-adjacent crypto asset in history when it scaled from zero to $15b in 18 months.

Ethena also developed USDtb, a GENIUS Act-ready payment stablecoin, in partnership with BlackRock. USDtb is now issued by Anchorage Digital Bank after becoming the first payment stablecoin issued under U.S. federal government supervision.

Ethena Whitelabel offers applications, chains, wallets or exchanges the infrastructure to launch their own dollar asset on Ethena's back-end infrastructure with USDe and/or USDtb as the core reserve assets.

Through these offerings, Ethena Labs is not just creating new financial products; we are building foundational infrastructure for a more open, efficient, and interconnected global financial system.

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