Freelance Senior Mobile Engineer – iOS

Mondia Group

. Design, develop, and maintain high-quality native iOS applications .

Posted 9/24/2026contractRemote • EgyptSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in iOS application development, with strong proficiency in Swift and knowledge of core Apple frameworks. Capable of leading technical discussions, mentoring junior developers, and optimizing application performance while adhering to engineering best practices.

Highest-signal resume keywords

IOS Application DevelopmentSwift ProficiencyRESTful API IntegrationUnit Testing with XCTestAgile/Scrum Methodologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

SwiftObjective-CSwiftUIUIKitIOS SDKMVVMCombineGCDTest-Driven DevelopmentMemory Management

Soft Skills

Excellent CommunicationCollaboration SkillsProblem-SolvingAnalytical SkillsOwnership Mindset

Tools & Technologies

XCTestXCUITestGitInstrumentsSwift Package Manager

Industry Keywords

App Store SubmissionContinuous DeliveryAgile ProcessesClean ArchitecturePerformance Optimization

Tech Stack

Tools & technologies

AndroidiOSKotlinObjective-CSwift

About the role

Key responsibilities & impact

Design, develop, and maintain high-quality native iOS applications
Lead technical design discussions and contribute to architecture decisions
Write clean, testable, and reusable code following engineering best practices
Optimize performance, memory usage, launch time, and battery consumption
Ensure stability through unit testing, UI testing, and code reviews
Integrate RESTful APIs and collaborate with backend teams on API design
Collaborate with Product, Design, Backend, QA, and Android teams
Mentor junior developers and help establish engineering standards
Participate in Agile processes and continuous delivery practices

Requirements

What you’ll need

5+ years of professional iOS development experience
Proven track record of shipping and maintaining apps at scale on the App Store
Experience owning features from design through production release
Strong proficiency in Swift
Working knowledge of Objective-C
Familiarity with Kotlin and Android development concepts
Knowledge of iOS SDK and core Apple frameworks
Knowledge of app and scene lifecycle and view controller lifecycle
Experience with background tasks, push and local notifications
Experience with App Extensions, including widgets and share extensions
Experience with SwiftUI and UIKit
Knowledge of Swift Concurrency, including async/await, actors, and structured concurrency
Experience with Combine and the Observation framework
Knowledge of GCD and OperationQueue
Experience with navigation patterns, including NavigationStack and Coordinators
Knowledge of dependency injection and Swift Package Manager
Experience with MVVM, MVI, or The Composable Architecture (TCA)
Knowledge of Clean Architecture and modular architecture
Knowledge of SOLID principles and separation of concerns
Experience designing scalable mobile architectures and evaluating trade-offs
Experience with REST APIs, URLSession, and Codable
Knowledge of authentication flows, error handling, and network caching
Experience optimizing UI rendering performance, main thread hang prevention, launch time, and battery usage
Knowledge of memory management, ARC, retain cycles, and leak detection
Experience profiling and debugging with Instruments
Experience with unit testing using XCTest and Swift Testing
Experience with UI testing using XCUITest
Experience with snapshot and integration testing
Knowledge of Test-Driven Development and mocking
Experience with Git, pull request workflows, and code reviews
CI-friendly development experience
Experience with App Store submission and release management
Knowledge of Agile/Scrum methodologies
Strong ownership and execution-focused mindset
Excellent communication and collaboration skills
Ability to work independently in a fast-moving environment
Strong problem-solving and analytical skills

Benefits

Comp & perks

Social insurance
Health insurance for employee and family
The company will contribute up to EUR 25 per month towards staff perks
Benefit from our company based bonus scheme, in line with company policy.
EUR equivalent salaries paid in EGP