Senior Firmware Engineer

Sasken Technologies Limited; Ahmedabad District; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Sasken Technologies Limited in Ahmedabad invites a Senior Firmware Engineer to drive firmware development for cellular and Wi‑Fi IoT products. You will own modules such as cellular modem integration, Wi‑Fi connectivity, power management, OTA, and robust debugging for field deployments.

The role requires hands‑on experience with RTOS or bare‑metal environments, strong problem solving, and a focus on aggressive battery optimization across production devices in a fast‑paced setting.

Qualifications

• 5-8 years of embedded firmware experience.
• Experience with cellular and Wi-Fi IoT platforms.
• Strong debugging and performance optimization skills.

Responsibilities

• Design and develop embedded firmware on RTOS / bare-metal platforms.
• Implement modular firmware components aligned with system architecture.
• Participate in firmware architecture and design reviews.
• Integrate and maintain firmware for cellular and Wi-Fi connectivity.
• Optimize power consumption for production devices.
• Handle OTA and system debugging.

Skills

Embedded firmware

RTOS

Bare-metal

Cellular modem

Wi-Fi connectivity

Power management

OTA updates

System debugging

Firmware architecture

Code reviews

Tools

Quectel modules

u-blox modules

AT command handling

Job description

Job Title: Senior Firmware Engineer Cellular & Wi-Fi IoT Experience: 5-8 Years Domain: LTE / NB-IoT / Wi-Fi | Low-Power IoT Location: Ahmedabad

Role Summary We are looking for a Senior Firmware Engineer with strong hands‑on experience in cellular and Wi‑Fi based IoT products. The role focuses on firmware development, connectivity integration, and aggressive battery optimization for production‑grade devices. You will work on real field‑deployed products, owning firmware modules such as cellular modem integration, Wi‑Fi connectivity, power management, OTA, and system debugging.

• Design and develop embedded firmware on RTOS / bare-metal platforms.
• Implement modular firmware components aligned with system architecture.
• Participate in firmware architecture and design reviews.
• Integrate and maintain firmware for:
• Work with cellular modules (Quectel / u‑blox or similar):
• AT command handling
• Network attach / detach logic
• Reconnect and recovery flows
• Intermittent connectivity
• SIM and registration failures
• Minimal wake‑up and transmit time Wi‑Fi Firmware
• Handle coexistence scenarios between Wi‑Fi and Cellular.