About PayJoy PayJoy is a mission-first credit provider dedicated to helping under-served customers in emerging markets to achieve financial stability and success.
Our patented technology for secured credit provides an on-ramp for new customers to enter the credit system.
Through PayJoy's point-of-sale financing and credit cards, customers gain access to a modern quality of life.
PayJoy's credit also allows our customers to seize opportunities as micro-entrepreneurs, and provide safety acts as insurance for tough times. Through our cutting-edge machine learning, data science, and anti-fraud AI, we have served over 18 million customers as of 2025 while achieving solid profitability for sustainable growth. This role The Product lock analyst - Android security is responsible for testing and helping maintain PayJoy's proprietary device locking technology against various bypass methods and tools, after every OS Over-The-Air (OTA) update, any update to our lock technology itself and any update to the in-market tools. Responsibilities




Proactively and systematically test PayJoy's device locking mechanism on a diverse range of Android devices and OS versions following every OTA update. Conduct thorough, periodic testing of the lock after every update or modification to the PayJoy lock technology.
Actively research, identify, acquire, and utilize existing and emerging lock-breaking tools, software, hardware techniques, and methodologies (e.g., factory reset exploits, bootloader vulnerabilities, ADB exploits, custom ROM flashing, FRP bypass tools) to attempt to bypass the PayJoy lock. Develop, maintain, and execute comprehensive test plans, test cases, and test scenarios specifically focused on lock security, bypass attempts, and anti-tampering features. Simulate various attack vectors and user behaviors that could lead to a lock bypass.
Document all testing activities, methodologies, findings, discovered vulnerabilities, and precise steps to reproduce in a clear, concise, and

📌 Product Lock Analyst (San Luis Potosí)
🏢 Payjoy
📍 San Luis Potosí