11/12/2026 updated

AB
100 % available

SENIOR iOS ENGINEER

Alingsås, Sweden
Only remote
Alingsås, Sweden
Only remote

Profile attachments

Aaron Bertsch CV en.pdf

Apple IOSApple XcodeBluetoothIOS SDKObjective-C (Programming Language)SwiftuiIos FrameworksSwift (Programming Language)Backend
Senior iOS Engineer and Technical Lead with over 20 years of professional software development experience, specializing in native iOS development since 2008.
Extensive experience with Swift, SwiftUI, UIKit, Objective-C, Combine, Core Data, async/await, Auto Layout, and Storyboards. Strong background in iOS application architecture, MVVM, MVC, SOLID principles, performance optimization, debugging, and maintaining production applications.
Experienced in Apple frameworks including StoreKit, CloudKit, SceneKit, SpriteKit, ARKit, and MapKit. Additional expertise in Bluetooth Low Energy (BLE), Core Bluetooth, MQTT, REST APIs, Firebase, Firestore, Firebase Cloud Functions, Node.js, and backend integrations.
Hands-on experience with CI/CD pipelines, Bitrise, Git, Xcode, TestFlight, App Store Connect, and the complete mobile application lifecycle, from architecture and implementation to testing, release, and ongoing maintenance.
Additional development experience includes Kotlin, native Android, Unity, C#, .NET, and SQL.
Professional experience spans automotive, industrial manufacturing, IoT, connected devices, gaming, social platforms, parking and EV charging, and commercial consumer applications. Previous clients and employers include Snap Inc., SKF, Polestar, Volvo Cars, Husqvarna, and Parkering Göteborg.
Experienced in technical leadership, mentoring developers, code reviews, cross-functional collaboration, and independent consulting. Comfortable taking full ownership of complex applications, modernizing existing codebases, and delivering reliable, maintainable software with minimal supervision.
Also independently developed and maintained commercial software products, including Word Keeper, an iOS application with over 25,000 users, demonstrating long-term product ownership, backend development, and successful delivery of production software.

Experience

Professional experience10+ years
Freelancer since2007

Languages

EnglishNative speakerSwedishFluent

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