Mobile Security Technician – Cyber Security Team

About the role

We are looking for a Mobile Security Technician to join our Cyber Security Team, which provides intelligence on hacking of Sun King devices to strengthen digital and financial inclusion for our customers. As an ethical hacker, you will identify security loopholes in vendor smartphones and advise on security considerations. You will test Sun King devices for flaws, conduct hardware vulnerability reviews of smartphones, IoT and automotive devices, develop custom proof‑of‑concept code, and carry out internal penetration testing.

Key responsibilities

• Conduct offensive security assessments of hardware, firmware, embedded operating systems and payment stacks on Sun King mobile devices.
• Reverse engineer firmware and perform static and dynamic reviews to uncover weaknesses.
• Detect and exploit vulnerabilities in bootloaders, MDMs, Android kernel components, secure boot implementations and cryptographic mechanisms.
• Develop and execute proof‑of‑concept attacks to demonstrate exploitability and business impact.
• Collaborate with product, hardware and software engineering teams to define secure development practices.
• Contribute to threat modelling and architecture reviews for new products and features.

Required profile

• Solid knowledge of Android security, Mobile Device Management and IoT device architectures.
• Strong familiarity with hardware exploitation techniques such as JTAG/SWD/UART debugging, side‑channel analysis and fault injection.
• Hands‑on experience with tools like Flash 64, Pandora, Easy JTag, Chimera, CM2, Ghidra, IDA Pro, Binary Ninja, JTAGulator, OpenOCD and Bus Pirate.
• Experience reviewing and modifying firmware images using binwalk, Firmadyne and QEMU.
• Proficiency in programming and scripting with Python, C/C++ and Bash.
• Understanding of secure boot, TPM/TEE, flash encryption and common vulnerability classes.