Ass. Embedded Firmware Engineer - Gurugram, Haryana
1 day ago
Job description
Job Title: Associate Embedded Firmware Engineer
Company: Aaizel International Technologies Pvt. Ltd.
Location: On Site (Gurgaon)
Employment Type: Full Time
Experience: 3-5 Years
About Aaizeltech
Aaizeltech is a deep-tech company building AI/ML-powered platforms, scalable SaaS applications, and intelligent embedded systems. We're looking for an experienced Embedded Firmware Engineer (3–5 yrs) to work on advanced IoT & RF systems- especially LoRa-based devices, secure telemetry modules, and industrial IoT controllers.
Role Overview
This role is heavily focused on firmware, protocol development, encryption, and system-level software architecture.
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 and
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