Job Summary
A South African security communication and telemetry company is seeking a hands-on Senior Firmware Engineer to take technical ownership of the end-to-end design, development, and maintenance of embedded firmware for the company's communicators, alarm panels, and IoT security devices.NB: Willing to pay relocation costs for the right candidate.
Responsibilities:
Firmware Architecture & Development: Design, implement, and maintain low-latency C/C++ firmware for microcontrollers (ARM Cortex-M) powering GSM/LTE communicators and alarm panels.
Communications & Protocols: Develop and optimize driver stacks (UART, SPI, I2C), cellular communications (GSM/LTE), and protocol handlers for reliable bi-directional alarm signaling.
System Reliability & Security: Implement diagnostics, watchdog/recovery mechanisms, logging, and security practices to ensure maximum uptime and power efficiency.
Hardware Integration & Bring-Up: Collaborate with hardware teams on schematic reviews, board bring-up, signal integrity, and design-for-manufacture (DFM).
Software & Cloud Integration: Support OTA firmware updates, device provisioning, and backend/cloud API interfaces alongside the software team.
Testing, Field Support & Compliance: Perform field testing, analyze field logs to resolve complex root-cause issues, and ensure compliance with South African (ICASA) standards.
Technical Leadership: Drive coding standards, conduct code reviews, document architectures, and mentor junior engineers.
Minimum Requirements:
Experience: 8+ years of professional embedded firmware / software development experience.
Technical Skills: Strong C/C++ proficiency on resource-constrained microcontrollers (ARM Cortex-M preferred); solid RTOS (e.g., FreeRTOS) or bare-metal development background.
Cellular & Peripherals: Proven experience with cellular modems (2G/3G/4G/LTE), AT command sets, and peripheral buses (UART, SPI, I2C, ADC, DMA).
Tools & Debugging: Proficiency with Git, JTAG/SWD debuggers, logic analyzers, oscilloscopes, and CI/CD pipelines for embedded systems.
Problem Solving: Track record of deploying production-grade firmware and debugging complex, intermittent field issues.
Education: Bachelor’s degree in Electronic/Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.
Desirable / Advantageous Skills
Experience in security, telemetry, IoT, or industrial automation sectors.
Familiarity with alarm signaling protocols (e.g., Contact ID, SIA).
Experience with OTA update architectures and device management platforms.
Knowledge of low-power design and battery-backed power management techniques.
Familiarity with ICASA regulatory compliance for radio equipment.
Scripting capability (Python) for automated testing and internal tooling.
Benefits:
Competitive salary based on experience (salary can potentially be more based on experience/skills)
IF you meet the above requirements and want to make a career-changing move, apply today by emailing your CV to itcareers@hireresolve.za.com
About
Specialists in Civil, Structural, Mechanical Engineering, Information Technology, Mining, Manufacturing and Finance Careers! Hire Resolve is one of the larger and more agile South African recruitment companies that focus on placing professionals and skilled people in permanent employment and contract employment. We prefer and focus on working with top quality professionals and candidates in South Africa and Africa. Hire Resolve has successfully placed Engineering, Mining, IT, Manufacturing and Finance professionals with top firms across the Western Cape, Eastern Cape, KwaZulu Natal, Gauteng and in Africa. Hire Resolve has assisted candidates to find jobs at over 100 JSE listed companies of which many are global companies with offices and operations in South Africa and Africa. It is for this reason that we are well respected in the industries we operate in and in the recruitment industry.
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