Senior iOS Engineer

iOS Developer – Vattenfall

Tools & Technologies

Essential Experience:

• Xcode (latest stable version)
• Swift, UIKit, SwiftUI
• Core Data
• Git (version control)
• XCTest (testing framework)
• App Store management (certificates, provisioning profiles)
• TestFlight (managing test builds)

Preferred Experience:

• API and Snapshot testing
• Firebase (Crashlytics, Remote Config, Cloud Messaging)
• SQL database clients (e.g., TablePlus)

Daily Responsibilities

• Gather specifications and create user stories/tasks in Azure DevOps
• Develop new features collaboratively with the team
• Maintain existing functionality and ensure compatibility with future iOS versions
• Troubleshoot and resolve app disruptions
• Manage application users and roles in Azure
• Reprocess failed orders by executing SQL queries and database adjustments

Technical Debt & Key Skills

• New Installation, Warranty, and CTW-ITW functionalities have been rewritten in SwiftUI (modern and maintainable).
• mWFM (maintenance engineers) and Valve functionalities are written in UIKit with low code quality – refactoring or rewriting is necessary.

Skills Required:

✅ Advanced proficiency in SwiftUI and UIKit to handle both modern and legacy codebases
✅ Strong debugging and code improvement skills
✅ Ability to independently make technical decisions without direct oversight
✅ Fluent Dutch (for understanding app content, data, and communication with users)