Senior Security Engineer – iOS Reverse Engineering

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.

We are looking for a senior Mobile Security Engineer with strong experience in iOS reverse engineering, application analysis, and security tooling to help assess and strengthen our own applications in authorised environments. In this role, you will analyse application behaviour, API communication, authentication flows, session handling, and device-level signals. 
You will help us better understand abnormal usage patterns, improve detection logic, and strengthen the resilience of our systems against misuse and automated threats. 

What you’ll do: 

Perform static and dynamic analysis of iOS applications Analyse API behaviour, authentication flows, and session management Investigate device and behavioural signals linked to suspicious or abnormal activity Build Python-based internal tools for testing, automation, and analysis Work with Frida, Appium, and related frameworks in controlled environments Support logging, analysis, and tooling with MongoDB and MySQL 

What we’re looking for: 

Senior experience in reverse engineering, iOS security research, or mobile application analysis Strong understanding of APIs, authentication systems, device fingerprinting, and behavioural analysis Experience with Python, automation tooling, cURL-based workflows, and interface development 

Familiarity with Frida, Appium, MongoDB, and MySQL 

Strong analytical mindset with attention to technical detail 

Additional note: This is a long-term role focused exclusively on improving the security, detection capabilities, and resilience of our own applications. 

All work is conducted in authorised, legal, and controlled environments.