Desarrollador de iOS

Roca Alliances; Medellín; On-site; COP 180,000,000 - 260,000,000; Full time

Benefits offered by this job

Permanent contract

Private health insurance

Job summary

Roca Alliances in Medellín, Colombia is seeking a Senior iOS Developer to design, maintain and evolve high-performance mobile apps using SwiftUI and UIKit. The role focuses on offline-first capability and modernization of the codebase to keep apps functional in low-connectivity environments.

You will collaborate with product, design and QA, perform migrations from Storyboards to SwiftUI, apply dependency injection, implement local persistence, and optimize performance.

Qualifications

• Experience with SwiftUI lifecycle and view evaluation.
• Experience integrating SwiftUI with UIKit and Storyboards.
• Refactor or migration of codebases to modern SwiftUI/ UIKit architectures.
• Experience with local databases and offline-first apps.
• Strong English communication skills.

Responsibilities

• Design and implement features in SwiftUI and UIKit with clean, testable and scalable code.
• Integrate SwiftUI into UIKit screens using UIHostingController.
• Optimize view performance by controlling what triggers view re-evaluation.
• Lead refactors and migrations from Storyboards/UIKit to SwiftUI.
• Apply dependency injection to decouple components and improve testability.
• Implement local persistence and offline sync strategies.
• Build async/await flows and review AI-generated code.
• Collaborate with product, design and QA and participate in code reviews.

Skills

SwiftUI

UIKit

Offline-first

UIHostingController

Dependency injection

Async/await

English

Tools

SQLite

GRDB

NoSQL

Job description

Senior iOS Developer (SwiftUI / UIKit / Offline-first)

About the client

Our client is a global SaaS company building field service management software. Its mobile apps are used every day by field technicians who often work with poor or no connectivity, with teams across the United Kingdom, Australia, New Zealand and North America.

About the role

We are looking for a Senior iOS Developer to design, maintain and evolve high-performance mobile applications. You will work on a codebase that combines SwiftUI and UIKit, take part in modernizing it, and build apps that keep working when there is no connection or the signal is weak.

What you'll do

• Design and implement features in SwiftUI and UIKit with clean, testable and scalable code.
• Integrate SwiftUI into UIKit screens and vice versa using UIHostingController.
• Optimize view performance by controlling what triggers view re-evaluation.
• Take part in refactors and code migrations, such as Storyboards/UIKit to SwiftUI.
• Apply dependency injection to decouple components and make testing easier.
• Implement local persistence and sync strategies for offline use.
• Build asynchronous flows with async/await and critically review AI-generated code.
• Work with product, design and QA, and take part in code reviews.

Requirements Required

• Solid understanding of the SwiftUI lifecycle and what triggers view evaluation.
• Experience with UIKit and Storyboards.
• Experience on a mixed SwiftUI + UIKit project, including UIHostingController.
• At least one completed refactor or codebase migration.
• Working knowledge of dependency injection, including at least one common DI library and its purpose.
• Experience with local databases such as SQLite or GRDB, and/or a NoSQL solution.
• Experience building apps that work locally with poor or no connectivity.
• Regular use of AI tools in development and an understanding of their limits, especially with async/await.
• Advanced English.

Nice to have

• Advanced Swift Concurrency (actors, structured concurrency) and Combine.
• Testing with XCTest and UI tests, and mobile CI/CD experience.
• Data conflict resolution and sync strategies.
• Experience publishing and maintaining apps on the App Store.
• Permanent contract (contrato a término indefinido) with all legal benefits
• Private health insurance (medicina prepagada)