Senior/Staff iOS Engineer Central Europe

Zoolatech; Central (LA); On-site; USD 120,000 - 180,000; Full time

Job summary

Zoolatech is seeking a Senior iOS Engineer to join the team responsible for a high-traffic mobile application serving millions of users. The current iOS codebase will undergo a modernization initiative to improve architecture, performance, and development velocity.

This role includes modularization, establishing a unified engineering “golden path,” migrating key components to Swift and SwiftUI, and supporting the foundation for a major rewrite in the next development cycle.

Qualifications

• 4+ years of experience building and maintaining iOS apps.
• Strong Swift development skills and Objective-C experience.
• Experience with SwiftUI and modern iOS architectures.
• Experience with large, complex codebases and migration projects.
• Proactive, problem-solving mindset and ability to navigate ambiguity.

Responsibilities

• Lead modularization, architecture refinement, and modernization.
• Migrate components from Objective-C to Swift and SwiftUI.
• Define engineering best practices and the iOS golden path for development.
• Collaborate with cross-functional teams to deliver features while evolving core systems.
• Support long-term plans to rewrite significant portions of the app.

Skills

Swift

SwiftUI

Objective-C

iOS architecture

Code migrations

Tools

Xcode

Job description

We are seeking a Senior iOS Engineer to join the team responsible for a high-traffic mobile application serving millions of users. The current iOS codebase will undergo a modernization initiative to improve architecture, performance, and development velocity. This includes modularization, establishing a unified engineering “golden path,” and migrating key components to Swift and SwiftUI.

As part of this team, you will work across a complex codebase, drive technical improvements, and support the foundation for a major rewrite planned in the next development cycle.

We are seeking a Senior iOS Engineer to join the team responsible for a high-traffic mobile application serving millions of users. The current iOS codebase will undergo a modernization initiative to improve architecture, performance, and development velocity. This includes modularization, establishing a unified engineering “golden path,” and migrating key components to Swift and SwiftUI.

As part of this team, you will work across a complex codebase, drive technical improvements, and support the foundation for a major rewrite planned in the next development cycle.

Work within and improve a large codebase.

Lead efforts in modularization, architecture refinement, and modernization.

Drive migration of certain components from Objective-C to Swift and SwiftUI.

Contribute to defining engineering best practices and the “golden path” for iOS development.

Collaborate with cross-functional partners to deliver features while evolving core systems.

Support long-term plans to rewrite significant portions of the app.

4+ years of experience building and maintaining iOS applications.

Solid expertise in modern Swift development and Objective-C.

Experience with SwiftUI and contemporary iOS architectural patterns.

Proven experience working with large, complex codebases.

Hands-on experience with code migrations, refactoring, or modernization initiatives.

Strong problem-solving skills and the ability to navigate ambiguity.

Proactive, initiative-driven mindset with a passion for improving engineering foundations.

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