What You’ll Work On

• Develop production-grade firmware for STM32 (WL/H/L/F series).
• Implement AES-128/256 encryption, secure key handling & data integrity checks (SHA/CRC).
• Build firmware for LoRa PHY/MAC, long-range telemetry, and robust packet handling.
• Sensor data acquisition & processing
• Implement UART/SPI/I2C/ADC/DMA drivers using HAL/LL or register-level coding.
• Develop communication stacks:
• RS485/Modbus RTU
• RS232
• MQTT, TCP/IP, UDP
• Work with FreeRTOS for multitasking & low-power firmware.
• Implement bootloaders, OTA update flows & firmware versioning.
• Debug firmware using SWD/JTAG, logic analyzer, DSO traces.
• Optimize code for performance, low power, and reliability.

What You Should Bring

• 3–5 years experience in embedded firmware development.
• Strong in Embedded C, STM32CubeIDE, HAL/LL drivers.
• Experience implementing secure communication (AES-128/256, SHA).
• Hands-on with LoRa/FSK, packet framing, and RF-side debugging.
• Good knowledge of RTOS (FreeRTOS), queues, tasks, ISRs.
• Comfort with industrial communication: RS485/Modbus, RS232.
• Understanding of data protocols (MQTT, TCP/IP, UDP).
• Ability to independently debug firmware issues with SWD, DSO, and analyzers.
• Basic understanding of PCB/Hardware just enough to debug firmware–hardware interaction.

How to Apply

If you are passionate to work on next-generation technologies, we would love to hear from you.

Please send your resume and a cover letter outlining your relevant experience to akansha@aaizeltech.com