Senior iOS Engineer (Reverse Engineering and JailBreak experience required ) Offline

Applefy - a high-quality Mobile and Web Development company, is looking for a talented Engineer to join our dynamic team on an ongoing project. 
This is a fantastic opportunity for a developer passionate about building high-quality mobile applications and wanting to grow their skills in a flexible and supportive environment.

What We Offer:

• Flexible work schedule: Manage your own time and work at your own pace.
• Fully remote: Work from anywhere in the world.
• Comprehensive leave policy: Enjoy all official holidays, 20 days of paid vacation, and 10 sick days without needing a doctor’s note.

We are looking for an Senior iOS developer specialized in reverse engineering and tweak development (Theos/Logos) to create a custom bypass for a highly aggressive anti-jailbreak detection system (Tinder/Hinge) on iOS 16 (Palera1n rootless). 

The goal is to allow the application to run smoothly while the device is jailbroken, specifically overcoming "Environment Checks" and "Anti-Hooking" mechanisms that current public tools (Choicy, Shadow, vnodebypass) fail to bypass. 

Technical Challenges: 

The target application uses sophisticated detection methods, including: 

* Integrity Checks: Detecting the presence of the Palera1n loader and /var/jb file structure. 
* Dylib/Injection Detection: Scanning for loaded libraries (Ellekit/Substrate). 
* Sandbox/Container Monitoring: Detecting data redirection (similar to Crane/Slice). 
* Third-party Security SDKs: Likely FaceTec or similar biometric/security frameworks that perform low-level system calls (syscalls). Responsibilities: 

* Analyze the application's binary to identify specific detection triggers (using IDA Pro, Hopper, or Ghidra). 
* Develop a custom Tweak (Rootless architecture) to hook and spoof the detection methods. 
* Ensure compatibility with the iPhone 8/X (A11) hardware running iOS 16.7.x. 
* Implement a "Kernel-level" hiding strategy if user-land hooks are insufficient. Requirements: 

* Proven experience in iOS Reverse Engineering and Mobile App Security. 
* Mastery of Objective-C, C++, and the Theos development suite. 
* Deep understanding of iOS internals (dyld, syscalls, sandbox, mach_star). 
* Experience bypassing commercial protectors (like Arxan, Promon, or similar). 
* Ability to deliver a clean, stable .deb file and documentation on how the bypass functions. 

Preferred Skills: 

- Previous experience with dating app security or banking app bypasses. 
- Knowledge of TrollStore integration and its interaction with jailbroken environments. 
- Familiarity with A11 (Checkm8) specific detection vectors

- A desire to learn and grow professionally
- At least two years of experience in product development
- Residency in Ukraine 🇺🇦
- Experience with App Clip

If you’re ready to take the next step in your career with Applefy, we’d love to hear from you!