Principal iOS Engineer

How you can make an impact:

• Own and evolve the technical architecture of Aave App on iOS, setting direction that supports rapid product development without compromising security or maintainability.
• Design and ship core blockchain functionality, including wallet creation and connectivity, key management, transaction construction and signing, gas estimation, RPC interaction, onchain reads, and account-abstraction flows.
• Lead the integration of onchain and offchain data across savings, funding, withdrawal, bridge, vault, portfolio, notification, and analytics experiences.
• Set standards for application architecture, Swift and UIKit code quality, testing, observability, performance, release safety, and incident response.
• Remain hands-on in the codebase, particularly for foundational architecture, security-sensitive functionality, complex integrations, and critical production issues.
• Partner closely with design to deliver precise UI, refined interactions, accessibility, and a cohesive mobile design system.
• Coach and mentor iOS engineers, delegate meaningful ownership, provide clear technical and performance feedback, and contribute to hiring and team development.

Let's connect if you have:

• 8+ years building production iOS applications, including experience operating at Principal, Lead, or equivalent level.
• Deep Swift and UIKit expertise, with a strong understanding of iOS architecture, concurrency, networking, navigation, application lifecycle, and native frameworks.
• Hands-on production experience integrating blockchain functionality into an iOS application, including wallets, private keys, transaction signing, RPCs, gas, and onchain transaction lifecycles.
• A track record of setting architectural direction for a complex consumer application.
• Experience leading engineers through ambiguous, high-impact work, raising quality through mentoring and review, and creating clear ownership across a team.
• Strong judgement around performance, testing strategy, observability, release safety, incident response, and production reliability.
• Proven ability to deliver polished, design-precise consumer experiences and collaborate effectively across product, design, backend, protocol, and security teams.
• Clear communication with technical and non-technical stakeholders, particularly when explaining architecture, risk, priorities, and trade-offs.

Haven’t quite met all the criteria? Let’s not miss out on the chance to speak. Whilst you might not meet every single requirement, you might bring other, more exciting skills to the companies!