Middle/Senior Embedded Software Developer (IoT)

Company Description

Sigma Software is looking for an Embedded Software Developer to join our growing Embedded Software Development team and contribute to the creation of innovative smart beverage solutions. 
 
Are you passionate about embedded development? Let's work together!

CUSTOMER
Our Customer is an international company that develops innovative IoT-based smart home and lifestyle solutions, combining user experience, safety, and cutting-edge embedded technologies. 

PROJECT
The project includes the development of the Curated House System – an innovative smart beverage solution that integrates a user interface, face recognition, beverage dispensing control, OTA updates, and future cloud integrations. The solution combines embedded systems, IoT, UI frameworks, and computer vision to ensure a seamless and intelligent user experience. 

Technology Stack: C, ST, UART, I2C, SPI, J-link, HALs, FatFS, lwIP, ASIC, FPGA, RTOS. 

Job Description

• ​​​​Designing and implementing components and drivers (display, camera, sensors, actuators) 
• Developing beverage dispensing logic (temperature, pumps, valves, safety) 
• Integrating UI, camera, and fluidics modules 
• Coding in C/C++, debugging, documenting 
• Performing unit and integration testing on real hardware 
• Supporting QA during validation and troubleshooting 
• Participating in planning, estimation, and customer meetings 
• Collaborating with architects, security, and compliance engineers 
• Ensuring adherence to best engineering practices and quality standards 

Qualifications

• 4–5+ years of embedded software development in C/C++ 
• Strong knowledge of STM32 (H7/MP1) and familiarity with NXP, TI, SiLabs platforms 
• Proficiency with interfaces/protocols (UART, I2C, SPI, RS-422, CAN) 
• Experience with RTOS (FreeRTOS or similar) and IPC 
• Hands-on debugging with J-Link, ST-Link 
• Experience with file systems (FatFS, LittleFS) and networking stacks (lwIP or similar) 
• Experience with embedded UI frameworks: Qt/QML, STM TouchGFX, LVGL 
• Experience with security features (secure boot, checksums, OTA updates) 
• Understanding of cybersecurity in IoT solutions 
• Upper-Intermediate level of English  

WOULD BE A PLUS:  

• Knowledge of camera and display drivers  
• Experience with face recognition / Embedded Vision SDKs 
• Background in fluidics control (pumps, flow sensors, pressure sensors)