Remote iOS Engineer (Swift/Obj-C) for AI‑Driven Code Review

AI Trainer Jobs; United States; Remote; USD 83,000 - 152,000; Full time

Job summary

AI Trainer Jobs is seeking an experienced iOS Engineer (Swift/Objective-C) to work remotely on an hourly contractor basis. You will review AI-generated iOS code, assess architecture, and produce high-quality reference implementations and explanations for complex problems.

The role focuses on correctness, security, performance, memory management, and best practices, with responsibilities including code review, debugging, and writing clear technical guidance for AI training data.

Qualifications

• Bachelor's degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent practical experience).
• 4+ years of professional experience building production iOS applications, including work in Swift and (ideally) Objective-C codebases.
• Expert-level proficiency in Swift (Swift 5+): value/reference semantics, generics, protocols, error handling, and modern language features.
• Strong iOS fundamentals: app lifecycle, view/controller architecture, navigation, state management, and background execution constraints.
• Solid concurrency experience: GCD, OperationQueue, and modern async/await patterns; ability to reason about race conditions and thread-safety.
• Strong understanding of ARC and iOS memory patterns (retain cycles, weak/unowned, leaks, Instruments).
• Experience with networking and data: URLSession, JSON parsing, caching, retries, offline strategies, and persistence (Core Data/SQLite/Realm).
• Experience with testing and quality: XCTest, UI testing, mocking strategies, CI/CD (Fastlane is a plus), and App Store release hygiene.
• Security awareness: secure storage (Keychain), transport security, auth flows, privacy permissions, and sensitive data handling.
• Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in complex iOS code.

Responsibilities

• Develop AI training content: Create detailed prompts across iOS topics and write high-quality reference answers to guide AI learning.

Skills

Networking

Performance

Concurrency

Objective-C

UIKit/SwiftUI

iOS

Code review

Debugging

Memory Management (ARC)

Swift

Education

Bachelor's degree

Job description

AI Trainer Jobs is seeking an experienced iOS Engineer (Swift/Objective-C) to work remotely on an hourly contractor basis. You will review AI-generated iOS code, assess architecture, and produce high-quality reference implementations and explanations for complex problems.

The role focuses on correctness, security, performance, memory management, and best practices, with responsibilities including code review, debugging, and writing clear technical guidance for AI training data.