Junior Embedded Software Engineer

HEX20; India; On-site; INR 600,000 - 800,000; Full time

Job summary

HEX20 is seeking a Junior Embedded Software Engineer in India to develop and debug firmware for microcontroller-based products. You will work closely with senior engineers to implement drivers, fix defects, and support bring-up and testing of embedded systems.

Responsibilities include writing and validating firmware, debugging with JTAG/SWD, writing unit tests, and documenting results. Comfortable with reading datasheets and collaborating on code reviews is essential.

Qualifications

• 2.5+ years hands-on embedded C/C++ development experience.
• Experience with microcontroller peripherals and debugging tools.

Responsibilities

• Write, test, and maintain embedded C/C++ firmware for microcontroller-based products.
• Bring up and validate new hardware boards under guidance from senior engineers.
• Debug firmware issues using JTAG/SWD debuggers, logic analyzers, and oscilloscopes.
• Write unit tests and support integration testing of embedded modules.
• Document code, test results, and known issues clearly for the team.
• Participate in code reviews and incorporate feedback from senior engineers.

Skills

Embedded C/C++

Debugging

Microcontroller fundamentals

Reading datasheets

Communication skills

Tools

Git

Makefiles/CMake

Job description

• Looking for a Junior Embedded Software Engineer with hands‑on experience writing and debugging firmware for microcontroller‑based products.
• You will work closely with senior engineers to implement drivers, fix defects, and support bring‑up and testing of embedded systems.

Key Responsibilities

• Write, test, and maintain embedded C/C++ firmware for microcontroller‑based products
• Bring up and validate new hardware boards under guidance from senior engineers
• Debug firmware issues using JTAG/SWD debuggers, logic analyzers, and oscilloscopes
• Write unit tests and support integration testing of embedded modules
• Document code, test results, and known issues clearly for the team
• Participate in code reviews and incorporate feedback from senior engineers

Required Skills & Qualifications

• 2.5+ years of hands‑on experience in embedded C/C++ development
• Solid understanding of microcontroller fundamentals: GPIO, timers, interrupts, UART/SPI/I2C
• Practical debugging skills, comfortable with debuggers (GDB, JTAG/SWD), oscilloscopes, and logic analyzers
• Familiarity with version control (Git) and basic build tools (Makefiles/CMake)
• Ability to read datasheets and reference manuals and translate them into working code
• Good communication skills and willingness to learn from senior team members

Preferred Skills

• Exposure to any RTOS (FreeRTOS, Zephyr, etc.)
• Basic scripting skills (Python/Bash) for test automation
• Experience with peripherals such as ADC/DAC, PWM, or communication protocols (CAN, Modbus, libcsp)