Embedded Engineer - TestRight Nanosystems Private Limited

Polluxa, Inc.; Uttar Pradesh; On-site; INR 391,000 - 670,000; Full time

Job summary

Polluxa, Inc. in Noida is seeking an Embedded Software Engineer with hands-on experience in embedded systems and microcontroller‑based product development. The candidate will develop, test, debugging, and maintain embedded software for our devices.

Responsibilities include RTOS multitasking, MQTT communication, and robust HW-SW integration across sensors and peripherals. This full‑time India-based role offers competitive pay and opportunities to contribute to IoT product lines.

Qualifications

• Proven experience in embedded software for microcontroller-based products.
• Hands-on ESP32 and similar MCUs expertise.
• Experience with RTOS, multitasking, debugging and optimization.
• Proficient in MQTT and common interfaces (UART, SPI, I2C, GPIO, ADC, PWM).
• Familiar with hardware-software integration and Git version control.

Responsibilities

• Develop and maintain embedded firmware for microcontroller-based systems.
• Work with ESP32 and other MCUs for product development.
• Implement MQTT communication between devices and cloud/server.
• Utilize RTOS for multitasking, scheduling, synchronization and resource management.
• Develop firmware for IoT devices and ensure reliable HW-SW integration.
• Interface with sensors, modules, displays and peripherals.
• Debug HW-SW integration issues and optimize firmware performance.
• Perform firmware testing, debugging, validation and optimization.
• Collaborate with hardware team during product development and testing.
• Contribute to product integration, field testing and troubleshooting.
• Maintain documentation, firmware versions, test reports and records.
• Identify and resolve performance and connectivity issues in embedded systems.

Skills

Embedded C/C++

ESP32 microcontroller

RTOS (FreeRTOS)

MQTT

UART SPI I2C GPIO

Debugging embedded systems

Git version control

Tools

FreeRTOS

Git

Job description

Location: Noida Experience: 2–5 Years Employment Type: Full-time

About the Role

We are looking for an Embedded Software Engineer who has hands‑on experience in embedded systems and microcontroller‑based product development. The candidate will be responsible for developing, testing, debugging, and maintaining embedded software for our devices.

Key Responsibilities

• Develop and maintain embedded firmware/software for microcontroller‑based systems.
• Work with ESP32 and other microcontrollers for embedded product development.
• Develop and integrate communication protocols such as MQTT for device‑to‑server/cloud communication.
• Work with RTOS and implement multitasking, task scheduling, synchronization, and resource management.
• Develop firmware for IoT‑connected devices and ensure reliable communication between hardware and software.
• Interface and work with various sensors, modules, displays, and peripheral devices .
• Debug hardware‑software integration issues and troubleshoot firmware‑related problems.
• Perform firmware testing, debugging, validation, and optimization.
• Work closely with the hardware and electronics team during product development and testing.
• Participate in product integration, field testing, and troubleshooting when required.
• Maintain technical documentation, firmware versions, test reports, and development records.
• Identify and resolve performance, connectivity, and reliability issues in embedded systems.

Required Skills

• Strong knowledge of Embedded C/C++ .
• Hands‑on experience with ESP32 or similar microcontrollers.
• Working knowledge of RTOS such as FreeRTOS or similar.
• Experience with MQTT and other communication protocols.
• Understanding of UART, SPI, I2C, GPIO, ADC, PWM , and other common embedded interfaces.
• Knowledge of debugging tools and techniques for embedded systems.
• Understanding of basic electronics and hardware‑software integration .
• Experience with Git or other version‑control systems is preferred.
• Good problem‑solving and troubleshooting skills.

Preferred Experience

• Experience in IoT or connected‑device development .
• Experience working with sensors and real‑time data acquisition.
• Experience with Wi‑Fi/Bluetooth connectivity.
• Experience in developing firmware for commercial/industrial products.
• Exposure to device testing, firmware updates, and field troubleshooting.

Job Type: Full‑time

Pay: ₹35,000.00 - ₹60,000.00 per month

Application Question(s):

• Have you worked with RTOS? If yes, which one?
• If you are selected, how soon would you be able to join us in Noida?
• Have you worked with MQTT before?
• Have you worked with ESP32 or similar microcontrollers?

Experience: