iOS Developer

5 days ago

Greater Bristol Area, United Kingdom E-Solutions Full time

Job Description

We are looking for a highly skilled
iOS Developer
with strong experience in building secure, scalable, and high-performance mobile applications. The ideal candidate will have hands-on expertise in Swift, modern iOS frameworks, architectural patterns, and CI/CD practices, along with the ability to collaborate effectively within cross-functional teams.

Key Responsibilities

  • Design, develop, and maintain iOS applications using Swift and SwiftUI.
  • Collaborate with product, design, and engineering teams to deliver high-quality features.
  • Ensure application performance, scalability, security, and reliability.
  • Identify, design, and implement reusable components.
  • Troubleshoot and resolve complex bugs, integration issues, and performance bottlenecks.
  • Conduct code reviews and mentor junior developers.
  • Handle App Store distribution, beta releases, and CI/CD processes.
  • Utilize Xcode and GitHub Copilot to streamline development and testing workflows.

Essential Skills & Experience

Core iOS Capabilities:

  • Strong understanding of
    MVC/MVVM-C
    architecture patterns.
  • Proficient in
    Swift
    and
    SwiftUI
    .
  • Strong knowledge of networking (URLSession, Codable).
  • Experience working with databases:
    Swift Data
    ,
    Core Data
    ,
    SQLite
    , and caching mechanisms.
  • Expertise in background task handling using Background Modes.
  • Hands-on experience with
    GCD
    ,
    Operation Queues
    , and
    PromiseKit
    .
  • Unit testing experience:
    XCTest
    ,
    XCUITest
    ,
    Snapshot Testing
    .
  • Strong understanding of reactive programming – SwiftUI with Swift Concurrency.
  • Localization best practices and country-specific rollout with configuration files.
  • Proficiency with debugging tools: Instruments, Xcode Organizer, log management.

Security Knowledge:

  • Keychain, data encryption, SSL/certificate pinning.
  • Biometric and multi-factor authentication implementation.

Analytics & Monitoring:

  • Experience with
    Firebase Crashlytics
    , custom analytics, and remote configuration.

Other Technical Skills:

  • Experience with CI/CD tools such as GitHub Actions / Fastlane.
  • Familiarity with SAST/DAST tools (nice to have).
  • Knowledge of re-platforming assessments for mobile applications.
  • Ability to architect mobile solutions and provide technical direction across multiple technologies.

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