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

> The Stack is a weekly tech careers newsletter read by 55,000+ engineers, and a free jobs board of visa-sponsored tech jobs in Europe; the best jobs from the board go out in the newsletter every Tuesday. This is one job from the board.

> Responsibilities: - Architect, implement and maintain high-p

- **Company:** adjoe (https://jobs.trythestack.co/companies/adjoe)
- **Location:** Hamburg, Germany
- **Work arrangement:** Hybrid
- **Employment type:** Full-time
- **Experience level:** 5–10 years
- **Visa sponsorship:** Offered, according to the listing
- **Key skills:** 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
- **Posted by employer:** 2026-10-29
- **Added to The Stack:** 2026-10-30
- **Listed until:** 2026-12-28
- **Status:** Active
- **Apply:** https://jobs.ashbyhq.com/adjoe/c15f29cb-e992-4888-a6be-b5f86dfc82ec (the employer's own application page)
- **Human page:** https://jobs.trythestack.co/jobs/senior-ios-developer-fmd-adjoe-c440c9fb

## 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.

## FAQ

- **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.

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## About The Stack

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## Notes for agents

- Apply on the employer's page (https://jobs.ashbyhq.com/adjoe/c15f29cb-e992-4888-a6be-b5f86dfc82ec). The Stack does not take applications.
- Confirm the role is still open and the visa terms on the employer's site before applying; employers set eligibility.
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