Job Description
A South African manufacturer and designer of wireless security and alarm monitoring systems, specializing in creating long-range VHF, GPRS, and SMS transceivers, is seeking a Junior-to-Mid Level Embedded Firmware Engineer to maintain, support, and enhance their existing embedded products.
Responsibilities
Maintenance & Support: Maintain existing firmware products; investigate, debug, and resolve defects in deployed systems.
Enhancements & Features: Implement minor feature upgrades and firmware improvements.
Hardware Debugging: Read and interpret electronic schematics to perform root-cause analysis on firmware/hardware issues using oscilloscopes, logic analyzers, and debuggers.
Quality & Workflow: Adhere to established coding standards, documentation practices, and Git version control workflows.
Collaboration: Participate in code reviews, technical discussions, and support the testing, validation, and release processes.
Minimum Requirements
Education: Bachelor's degree in Electrical/Computer Engineering, Computer Science, or a related field.
Experience: 2 - 6 years of experience in Embedded C firmware development.
Microcontrollers: Strong understanding of microcontrollers, peripheral interfaces, and modular firmware design.
Tools: Proficient with Git and familiar with CI/CD pipelines in a firmware environment.
Languages: Embedded C (Mandatory)
Protocols: Serial communication (UART, SPI, $I^2C$, RS485) and basic TCP/IP.
Architecture: Firm grasp of firmware architecture and state machines.
Security: Exposure to IoT security best practices (secure boot, OTA updates).
Advantageous Skills (Nice to Have)
Wireless communication modules (GSM, LTE, Wi-Fi, etc.) and AT command interfaces.
Advanced IP networking concepts.
Bootloaders and custom firmware update mechanisms.