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Senior iOS Engineer
Zepz
GBR
Full-time
Senior · 5+ years experience
Hybrid
Discovered 1 weeks ago
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Free
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- Integrity: We always do the right thing. It’s simple, but it’s the foundation of everything we build for our customers and each other.
- Outcomes: We work for our customers. Their success and prosperity are the results we focus on delivering.
- Velocity: We are fast! We maintain high energy levels and make smart decisions quickly, keeping us nimble and ahead of the curve.
- 5+ years of professional experience shipping production iOS applications to the App Store, with deep, hands-on expertise in Swift.
- Deep experience with reactive, stream-based state management. You can design, read, and debug asynchronous data flow at scale, and you understand where reactive patterns earn their complexity and where they don't.
- A strong grasp of modern structured concurrency, and experience introducing it into an established codebase incrementally and safely — not only applying it on greenfield work.
- A track record of evolving a large, long-lived codebase, Experience with modular architecture at scale, designing dependency boundaries that hold up under delivery pressure, and treating build performance as an engineering concern rather than an inconvenience.
- A rigorous, layered testing strategy. You can articulate what belongs in a unit test versus an integration test versus an end-to-end test, you design for testability rather than retrofitting it, and you know how to keep a suite fast and trustworthy as it grows.
- Genuine ownership of the delivery pipeline, not just code that passes through it. You treat build, test, and release automation as a product surface with its own reliability bar.
- A solid command of on-device security fundamentals: secure credential storage, biometric and in-app authentication, session and token lifecycle, and clear judgement about what should never be stored on a device at all.
- Experience in a regulated or high-compliance environment (fintech, healthtech, or similar), with an instinct for the extra care that identity flows demand.
- Systematic diagnostic skill. You reach for profiling and instrumentation rather than guesswork, and you have the patience to reproduce a failure that only appears on one OS version or one device.
- Clear, structured written communication. You can write a design document that carries a multi-sprint project, and a post-mortem that stakeholders across the business can actually follow and act on.
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