Freelance Senior Mobile Engineer (IOS)

Posted 4 Days Ago
Be an Early Applicant
Hiring Remotely in Kayro, Cairo, EGY
In-Office or Remote
Senior level
Information Technology • Mobile • Software
The Role
Build and maintain scalable native iOS applications using Swift and modern Apple frameworks. Own features from design through production, contribute to architecture decisions, integrate REST APIs, optimize performance and security, write unit and UI tests, participate in code reviews and Agile delivery, and mentor junior engineers. Collaborate with product, design, backend, QA, and Android teams while supporting App Store releases and engineering standards.
Summary Generated by Built In

We are looking for an experienced Senior iOS Developer to build high-quality, scalable, and secure iOS applications. You will design application architecture, deliver new features, improve performance, and mentor engineers while working closely with product, design, backend, and Android teams.
The ideal candidate has deep expertise in native iOS development and modern Swift-based architecture, and thrives in a fast-paced, product-focused environment with a strong sense of ownership.

About MoneyMore & Mondia:

MoneyMore is the consumer fintech app of Mondia Group. It turns everyday bank transaction messages into a clear, real-time picture of a person's finances, helping users in Egypt spend smarter, budget better, and save more — in both Arabic and English. We are scaling from an early, product-led launch toward a nationwide personal-finance companion, and evolving into a broader fintech and consumer-intelligence platform.

Mondia Group is a digital services and marketplace provider that integrates digital products and experiences into telecom operators, banks, and other large distribution channels. MoneyMore is one of Mondia's key growth bets, built by a small, senior, fast-moving product team.

Responsibilities:

  • Design, develop, and maintain high-quality native iOS applications.
  • Lead technical design discussions and contribute to architecture decisions.
  • Write clean, testable, and reusable code that follows 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

Experience

  • 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

Languages:

  • Swift (strong proficiency)
  • Objective-C (working knowledge)
  • Familiarity with Kotlin and Android development concepts

iOS Platform

  • iOS SDK and core Apple frameworks
  • App and scene lifecycle, view controller lifecycle
  • Background tasks, push and local notifications
  • App Extensions (widgets, share extensions)

Modern iOS Development

  • SwiftUI and UIKit
  • Swift Concurrency (async/await, actors, structured concurrency)
  • Combine and the Observation framework
  • GCD and OperationQueue
  • Navigation patterns (NavigationStack, Coordinators)
  • Dependency injection
  • Swift Package Manager

Architecture and System Design

  • MVVM, MVI, or The Composable Architecture (TCA)
  • Clean Architecture and modular architecture
  • SOLID principles and separation of concerns
  • Designing scalable mobile architectures and evaluating trade-offs

Networking

  • REST APIs, URLSession, and Codable
  • Authentication flows
  • Error handling and network caching

Performance

  • UI rendering performance and main thread hang prevention
  • Memory management (ARC, retain cycles, leak detection)
  • Launch time and battery optimization
  • Profiling and debugging with Instruments

Testing

  • Unit testing with XCTest and Swift Testing
  • UI testing with XCUITest
  • Snapshot and integration testing
  • Test-Driven Development (TDD) and mocking

Development Practices

  • Git, pull request workflows, and code reviews
  • CI-friendly development
  • App Store submission and release management
  • Agile/Scrum methodologies

Soft Skills

  • 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

Nice to Have

  • Native Android experience with Kotlin and Jetpack Compose
  • Experience building FinTech or financial applications
  • Offline-first application experience
  • Local persistence with Core Data, SwiftData, or SQLite/GRDB
  • CI/CD pipelines (Xcode Cloud, Fastlane, GitHub Actions, Bitrise)
  • Analytics platforms (Firebase Analytics, Mixpanel, CleverTap)
  • A/B testing, experimentation frameworks, and feature flags
  • Mobile security best practices, including Keychain, Data Protection, SSL pinning, biometric authentication (Face ID / Touch ID), secure handling of sensitive data, and jailbreak detection

Benefits
  • 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

Skills Required

  • 5+ years of professional iOS development experience
  • Proven experience 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
  • Experience with the iOS SDK and core Apple frameworks
  • Experience with SwiftUI, UIKit, Swift Concurrency, Combine, and the Observation framework
  • Knowledge of scalable mobile architecture, including MVVM, MVI, TCA, Clean Architecture, modular architecture, and SOLID principles
  • Experience integrating REST APIs using URLSession and Codable
  • Experience with performance optimization, memory management, profiling, and debugging with Instruments
  • Experience with unit testing, UI testing, snapshot testing, integration testing, TDD, and mocking
  • Experience with Git, pull request workflows, code reviews, App Store submission, and release management
  • Strong ownership, communication, collaboration, problem-solving, and independent execution skills
  • Native Android experience with Kotlin and Jetpack Compose
  • Experience building fintech or financial applications
  • Offline-first application experience
  • Experience with Core Data, SwiftData, or SQLite/GRDB
  • Experience with CI/CD pipelines such as Xcode Cloud, Fastlane, GitHub Actions, or Bitrise
  • Experience with analytics, A/B testing, experimentation frameworks, or feature flags
  • Knowledge of mobile security practices including Keychain, data protection, SSL pinning, biometrics, secure data handling, and jailbreak detection
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The Company
HQ: Dubai
300 Employees
Year Founded: 1999

What We Do

Mondia is a leading mobile commerce company, dedicated to connecting, digitalising and monetising consumers worldwide. Mondia provides access to over 700m consumers through more than 60 mobile operators across 30 countries. Mondia has deep insight into where the markets are headed and has the expertise to leverage best-in-breed technologies to solve business challenges while enabling the ultimate end-user experience. Continuously driven by innovation, Mondia is driving entry into new sectors like health and creating disruptive products such as Monsooq. With offices in 8 locations across Europe, the Middle East and Africa, Mondia is committed to digitalise the globe through its distinctive technology, strategic partnerships and extensive network and global coverage.

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