iOS Engineer (up to £150k)

Dex; Greater London; On-site; GBP 80,000 - 120,000; Full time

Job summary

Dex’s partner company is building an AI workspace for banks and regulated institutions, and you will own a native iOS app end to end for iPhone and iPad. You’ll define the architecture, shape the design system, and set up testing and release pipelines for a production-grade experience.

You will collaborate closely with Design, Product, and web engineering teams to adapt surfaces while preserving core intent, delivering scalable iOS solutions for a global user base.

Qualifications

• Built and shipped native iOS apps in Swift and SwiftUI with end-to-end ownership.
• Strong judgment on mobile interaction patterns and offline behavior.
• Designed iOS architectures that scale with growing teams and products.
• Owned and maintained an iOS design system for long-term maintainability.

Responsibilities

• Rebuild existing web products as native iOS experiences, deciding what translates and what to reshape for mobile.
• Define the entire iOS architecture, including interaction patterns, offline behavior, notifications, and performance standards.
• Own the iOS design system, ensuring coherence and maintainability as the product scales.
• Set up and maintain testing, observability, and release pipelines for a production-grade native application.
• Collaborate with Design, Product, and web engineering teams to adapt surfaces without losing core intent.

Skills

Native iOS

Swift

SwiftUI

End-to-end delivery

Design system

Cross-functional collaboration

Job description

This role is with one of Dex's trusted partner companies. We work closely with their teams to truly understand their culture, goals, and what they're looking for, so we can match you with the right opportunity and give you context about the role before you commit to a process.

The role

This company builds the AI workspace that the world's largest banks and regulated institutions run their document-heavy work inside. They're growing rapidly, backed by leading investors, and transforming how major financial institutions produce and validate client-ready work.

They've shipped everything on the web, but now need a native iOS app — not a wrapper, but a proper, performant experience for iPhone and iPad. You'll own the entire iOS architecture, from interaction patterns and offline behavior to testing and release. This isn't just implementing features; it's defining the mobile future for a product used by global teams.

The work

• Rebuild existing web products as native iOS experiences, deciding what translates directly and what needs reshaping for mobile.
• Define the entire iOS architecture, including interaction patterns, offline behavior, notifications, and performance standards.
• Own the iOS design system, ensuring coherence and maintainability as the product scales.
• Set up and maintain the testing, observability, and release pipelines for a production-grade native application.
• Collaborate directly with Design, Product, and web engineering teams to adapt existing surfaces without losing their core intent.

What You Bring

• You've built and shipped native iOS applications in Swift and SwiftUI, with clear ownership of end-to-end delivery.
• You have strong judgment on mobile interaction patterns and offline behavior, understanding caching, syncing, and graceful degradation.
• You've designed iOS architecture that has scaled with a growing team and product, beyond a single, isolated app.
• You've owned and maintained an iOS design system, prioritizing its long-term maintainability.
• You're comfortable adapting complex product surfaces from web to native, working closely with cross-functional teams.

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