Mobile Security Technician
Sun King
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 and expand the digital and financial inclusion of our customers.
As an ethical hacker, your principal mission will be to identify security loopholes in various vendor smartphones and advise on security considerations. You will test Sun King devices for security flaws, particularly mobile phones, conduct hardware vulnerability reviews of smartphones, IoT and automotive devices, develop custom Proof-of-Concept code, and carry out internal penetration testing across products.
- Department
- Global Analytics and Technology
- Employment Type
- Permanent - Full Time
- Location
- Kenya
- Workplace type
- Onsite
What you will be expected to do:
- 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 security weaknesses.
- Detect and exploit vulnerabilities in embedded systems, bootloaders, MDMs, Android kernel components, secure boot implementations, and cryptographic mechanisms.
- Develop and execute proof-of-concept attacks to demonstrate exploitability and business impact.
- Work with product, hardware, and software engineering teams to define secure development practices and strengthen product resilience.
- Contribute to threat modeling and architecture reviews for new products and features.
- Keep current with emerging vulnerabilities, tools, and offensive research relevant to smartphone financing ecosystems.
You might be a strong candidate if you have:
- Solid knowledge of Android security, Mobile Device Management, IoT device architectures, and hardware security testing.
- Strong familiarity with hardware exploitation techniques (e.g., JTAG/SWD/UART debugging, side-channel techniques, fault injection).
- Hands-on experience with Flash 64, Pandora, Easy JTag, Chimera, CM2, and similar tools.
- Proficiency in reverse engineering tools such as Ghidra, IDA Pro, Binary Ninja, and debugging tools like JTAGulator, OpenOCD, or Bus Pirate.
- Experience reviewing and modifying firmware images (binwalk, Firmadyne, QEMU).
- Familiarity with secure boot, TPM/TEE, flash encryption, and other embedded security technologies.
- Programming and scripting capability in Python, C/C++, Bash, or similar languages.
- Knowledge of common vulnerability classes (e.g., memory corruption, design flaws, insecure update mechanisms).
- Exposure to payment/fintech device security and secure device provisioning environments.
What Sun King offers
- Professional growth in a dynamic, rapidly expanding, high-social-impact industry
- An open-minded, collaborative culture with enthusiastic colleagues driven by the challenge of innovation and making a profound impact on people and the planet.
- A truly multicultural experience: you will have the chance to work with and learn from people from different geographies, nationalities, and backgrounds.
- Structured, tailored learning and development programs that help you become a better leader, manager, and professional through the Sun King Center for Leadership.
About Sun King
Sun King combines energy generation, energy-efficient appliances, installation, and financing into one seamless offering. Think of it as a distributed utility, designed for wherever energy is needed and designed to scale with its users as incomes and energy needs grow.
Sun King makes solar products affordable to low-income households and businesses via ‘pay-as-you-go’ (PAYG) purchase financing. Sun King installs solar after customers pay a small deposit. Customers then make small, manageable payments of as little as US $0.14 a day via mobile money or cash.
Sun King collects payments digitally through mobile money systems and its 35,000 field agents — over 1 million payments each day. To date, Sun King has extended more than $1.4 billion in PAYG loans to customers.
Sun King began by powering homes and businesses with solar systems delivered through PAYG financing. Now, we’re using the same model to make smartphones and clean cooking equipment affordable: helping households connect to the digital economy and transition from wood-based fuels to modern, sustainable alternatives.
Sun King employs 3,500 full-time staff in 14 countries, with specialties spanning product design, data science, logistics, customer service, sales, software, operations, and more — all with a passion to serve off-grid families. Sun King is committed to gender diversity in the workplace. Women represent 42% of Sun King’s workforce.

