Embedded Software Developer (IoT) at Sigma Software

Job description

Design and implement embedded software components and hardware drivers for displays, cameras, sensors, and actuators Develop beverage dispensing logic, including temperature control, pumps, valves, and safety mechanisms Implement and maintain secure OTA firmware update functionality over HTTPS Develop and optimize embedded graphical user interfaces for LCD touchscreens Write clean, maintainable, and efficient C/C++ code Debug firmware and perform root-cause analysis on embedded hardware platforms Create and maintain technical documentation Conduct unit and integration testing on real hardware devices Support QA engineers during validation and troubleshooting activities Participate in sprint planning, estimation, and Customer communication Collaborate with architects, security specialists, and compliance engineers Ensure adherence to engineering best practices and quality standards At least 4 years of commercial experience in embedded software development using C/C++ Strong expertise with STM32 and ARM Cortex-M architectures Familiarity with embedded platforms from NXP, TI, or Silicon Labs Hands-on experience with UART, I2C, SPI, and Wi-Fi communication interfaces Solid understanding of networking protocols including MQTT, DNS, DHCP, mDNS, TCP/IP, and UDP Experience with FreeRTOS or Zephyr RTOS Experience implementing secure boot, OTA updates, checksums, and firmware validation mechanisms Experience with bootloader development and firmware update support Understanding of cybersecurity principles for IoT and embedded systems Strong debugging and troubleshooting skills on real hardware Upper-Intermediate or higher English level WILL BE A PLUS Experience with camera integration, image capture, processing, or streaming Experience with face recognition technologies or embedded vision SDKs Experience with embedded file systems such as FatFS or LittleFS Experience with networking stacks such as lwIP Background in fluidics control systems, including pumps, flow sensors, or pressure sensors Experience working with FPGA or ASIC-based systems PERSONAL PROFILE Strong problem-solving and analytical thinking skills Ability to work independently and proactively in distributed teams Good communication and collaboration skills Attention to detail and commitment to engineering quality Ability to balance low-level hardware interaction with system-level thinking