Junior Embedded Engineer

About the Role

Sunfox Technologies is looking for a motivated and technically curious Junior Embedded Engineer to support firmware development, hardware-software integration, wireless communication, product testing, and debugging for medical devices.

This role is suitable for candidates who have a strong foundation in C/C++, microcontrollers, electronics, communication protocols, BLE, Wi-Fi, and embedded system development and want to gain hands-on experience in developing commercial medical devices.

Key Responsibilities
Embedded Firmware Development

• Develop and maintain embedded firmware using C/C++.
• Work with microcontroller platforms such as:
• STM32
• ESP32
• AVR
• PIC
• ARM Cortex-based controllers
• Equivalent embedded platforms
• Develop firmware for:
• GPIO
• ADC
• PWM
• Timers
• Interrupts
• UART
• SPI
• I2C
• USB
• Support firmware optimization for performance, stability, memory, and power consumption.

BLE & Wi-Fi Development

• Work with Bluetooth Low Energy and Wi-Fi enabled platforms.
• Support implementation and debugging of:
• BLE advertising
• Device discovery
• Pairing
• GATT services and characteristics
• Data transmission
• Reconnection logic
• Wi-Fi configuration
• Network communication
• Support communication between embedded devices and mobile applications.
• Troubleshoot latency, packet loss, disconnection, and range-related problems.

Hardware–Firmware Integration

• Support prototype board bring-up.
• Interface firmware with:
• Sensors
• Analog front ends
• ADCs
• Displays
• Communication modules
• Memory devices
• Power-control circuits
• Work with electronics engineers to debug hardware-software integration issues.

Testing & Debugging

• Debug firmware using IDE tools, serial terminals, debuggers, and logic analyzers.
• Perform functional testing of embedded features.
• Identify firmware bugs and document root causes and fixes.
• Support testing during prototype and pilot production stages.
• Perform basic hardware debugging using oscilloscopes and multimeters.

Medical Device Development Support

• Follow controlled firmware-development and documentation practices.
• Support verification and validation activities for medical devices.
• Assist in technical documentation required for ISO 13485 and product-development records.
• Follow coding, version-control, test, and release procedures.

Documentation

• Maintain:
• Firmware version history
• Source-code comments
• Interface documentation
• Debug logs
• Test reports
• Communication protocol descriptions
• Release notes

Cross-Functional Collaboration

• Work with electronics, mobile app, software, QA, production, and regulatory teams.
• Support integration of embedded devices with Android applications and other host platforms.
• Participate in design reviews, testing, and product-improvement activities.

Required Qualifications

• Bachelor’s degree in Electronics, Electrical Engineering, Embedded Systems, Instrumentation, Biomedical Engineering, Computer Engineering, or a related field.
• Good understanding of C/C++ programming.
• Basic knowledge of microcontrollers and embedded systems.
• Understanding of digital electronics and basic analog electronics.
• Knowledge of UART, SPI, and I2C communication protocols.
• Basic exposure to BLE and Wi-Fi communication.
• Logical thinking and debugging ability.

Preferred Skills

• Experience with STM32CubeIDE, Keil, Arduino IDE, PlatformIO, MPLAB, ESP-IDF, or similar tools.
• Academic or internship projects involving embedded systems.
• Familiarity with Git or other version-control systems.
• Experience with BLE-enabled or Wi-Fi-enabled devices.
• Basic understanding of RTOS concepts.
• Exposure to PCB-level testing and hardware debugging.
• Interest in medical devices, ECG systems, sensors, wearables, or connected healthcare devices.

Ideal Candidate

The ideal candidate should enjoy solving problems, writing and debugging firmware, working directly with electronics hardware, and learning how real commercial products are built.

For this junior role, strong fundamentals, curiosity, disciplined coding habits, and willingness to learn are more important than extensive prior industry experience.

What We Offer

• Hands-on exposure to real medical-device development.
• Experience with embedded firmware, BLE, Wi-Fi, electronics, and product testing.
• Mentorship from experienced hardware and embedded engineers.
• Opportunity to work across the complete product-development lifecycle.
• Structured career growth within Sunfox Technologies.

Pay: ₹400,000.00 - ₹600,000.00 per year

Benefits:

• Flexible schedule
• Leave encashment
• Paid time off
• Provident Fund

Work Location: In person