Senior iOS Developer (f/m/d) at adjoe

About the role

Responsibilities:
- Architect, implement and maintain high-performance iOS SDKs and XCFrameworks for external publishers
- Build and optimize native ad formats, video players and rich web views using UIKit, AVFoundation and WKWebView
- Ensure seamless integration with mediation platforms and compliance with AdTech/IAB standards (tracking, viewability, attribution)
- Diagnose and fix runtime issues (frame drops, memory leaks) using Xcode Instruments and profiling tools
- Maintain CI/CD, dependency management and automated release pipelines (SPM, CocoaPods, fastlane, GitLab CI)
- Improve observability, crash reporting and telemetry for SDKs used inside third-party apps

Requirements:
- 8+ years of mobile development experience with deep expertise in modern Swift and SDK architecture
- Proven track record building production iOS libraries/SDKs, public API design and binary packaging (XCFrameworks)
- Strong knowledge of UIKit, AVFoundation, WKWebView and performance debugging tools
- Hands-on experience with SPM, CocoaPods, fastlane and GitLab CI for build automation and distribution
- Familiarity with Objective-C and cross-platform frameworks (React Native/Flutter/Unity) is a plus
- Solid understanding of mobile adtech concepts, mediation, attribution and impression tracking
- Excellent collaboration skills and experience working with product, backend and QA teams

Responsibilities

You will architect, build, and maintain high-performance iOS SDKs and visual ad components for a global programmatic ad network. Additionally, you will ensure technical stability through robust CI/CD pipelines, monitoring frameworks, and seamless integration with mobile mediation platforms.

Requirements

The role requires 8+ years of mobile development experience with deep expertise in Swift and SDK architecture. Candidates must have a strong understanding of mobile adtech standards, build automation tools, and performance optimization techniques.

Key skills

• Swift — in 41 other listings on The Stack
• iOS SDK development — in 1 other listing on The Stack
• UIKit — in 6 other listings on The Stack
• AVFoundation — not in any other listing on The Stack
• WKWebView — not in any other listing on The Stack
• CI/CD — in 601 other listings on The Stack
• Swift Package Manager — in 2 other listings on The Stack
• CocoaPods — not in any other listing on The Stack
• Fastlane
• GitLab CI
• Objective-C
• React Native
• Flutter
• Unity
• AdTech
• API design

On The Stack (as of 2026-10-30)

• adjoe has 14 other listings on The Stack, 14 of them marked as offering visa sponsorship.
• 170 visa-sponsored jobs in Germany on The Stack, posted in the last 60 days.

Frequently asked questions about adjoe

Is this Senior iOS Developer (f/m/d) role still open?

It was posted on 2026-10-29 and is listed as active on The Stack. Confirm on adjoe's application page before applying.

Does adjoe offer visa sponsorship?

This listing is marked as offering visa sponsorship. Eligibility rules are set by the employer, so check the details on adjoe's site.

Where is this role located?

The listing gives the location as Hamburg, Germany. It is marked hybrid.

What skills does this role ask for?

The listing names: Swift, iOS SDK development, UIKit, AVFoundation, WKWebView, CI/CD, Swift Package Manager, CocoaPods, Fastlane, GitLab CI, Objective-C, React Native, Flutter, Unity, AdTech, API design.