Jnr Firmware Engineer

Sasso Consulting; Gauteng; On-site; ZAR 300 000 - 400 000; Full time

Job summary

A technology consulting firm in Centurion seeks a skilled Firmware Engineer to design and develop embedded firmware for electronic and IoT products. The ideal candidate will possess a National Diploma or Bachelor's Degree in Electrical or Computer Engineering and have at least 3 years of experience in embedded systems development. Proficiency in C/C++, ARM-based MCUs, and familiarity with IoT connectivity are essential. The position offers a market-related salary starting at R18,000 per month, negotiable based on qualifications and experience.

Qualifications

• Minimum 3 years' hands-on experience in firmware or embedded systems development.
• Understanding of electronics schematics and PCB-level debugging.
• Strong analytical and problem-solving ability.

Responsibilities

• Design, develop, test, and maintain embedded firmware for electronic and IoT-based products.
• Collaborate with hardware engineers, software developers, and project managers.
• Deliver robust, efficient, and scalable embedded systems.

Skills

C / C++ programming for embedded environments

ARM-based MCUs (e.g., STM32, Nordic, ESP32)

RTOS environments (FreeRTOS, Zephyr)

IoT connectivity stacks (Wi-Fi, BLE, LTE, LoRa, MQTT)

Embedded toolchains (Keil, IAR, GCC, PlatformIO)

Python or Bash scripting

Version control systems (Git, GitLab, Bitbucket)

Education

National Diploma or Bachelor's Degree in Electrical / Electronic Engineering or Computer Engineering

Job description

Introduction

Position OverviewWe are seeking a skilled and innovative Firmware Engineer to join our Centurion-based engineering team.

The successful candidate will be responsible for the design, development, testing, and maintenance of embedded firmware for our range of electronic and IoT-based products. You will collaborate closely with hardware engineers, software developers, and project managers to deliver robust, efficient, and scalable embedded systems for commercial and industrial applications.

Duties & Responsibilities

Position OverviewWe are seeking a skilled and innovative Firmware Engineer to join our Centurion-based engineering team.

The successful candidate will be responsible for the design, development, testing, and maintenance of embedded firmware for our range of electronic and IoT-based products. You will collaborate closely with hardware engineers, software developers, and project managers to deliver robust, efficient, and scalable embedded systems for commercial and industrial applications.

Desired Experience & Qualification

• Minimum Requirements Qualification : National Diploma or Bachelor's Degree in Electrical / Electronic Engineering, Computer Engineering, or a related field.
• Experience : Minimum 3 years' hands‑on experience in firmware or embedded systems development.
• Proficiency in C / C++ programming for embedded environments.
• Experience with ARM-based MCUs (e.g., STM32, Nordic, ESP32, Renesas, NXP, or Microchip).
• Familiarity with RTOS environments (FreeRTOS, Zephyr, etc.).
• Exposure to IoT connectivity stacks (Wi‑Fi, BLE, LTE, LoRa, MQTT).
• Experience with embedded toolchains (Keil, IAR, GCC, PlatformIO).
• Understanding of electronics schematics and PCB-level debugging.
• Preferred Skills: Python or Bash scripting for automation or testing.
• Knowledge of OTA updates, bootloaders, and secure firmware principles.
• Familiarity with cloud IoT platforms (AWS IoT, Azure IoT Hub, The Things Network).
• Basic understanding of hardware design and testing.
• Experience using version control systems (Git, GitLab, Bitbucket).
• Strong analytical and problem‑solving ability.
• Able to work both independently and collaboratively.
• Attributes: Strong attention to detail and code quality.
• Excellent communication and documentation skills.
• Passionate about innovation, technology, and continuous learning.
• Reliable, punctual, and able to deliver under pressure.

Package & Remuneration

Market‑related, starting at R18, per month, and negotiable based on qualifications, experience, and track record.