IoT Firmware Developer

Tag-N-Trac, Inc.; Hyderabad; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Tag‑N‑Trac, Inc. is hiring an IoT Firmware Developer to design, develop, test, and maintain embedded firmware for cellular and BLE smart labels, sensors, gateways, and ultra-low-power devices.

You will join a firmware team working with hardware, platform, cloud, mobile, and product teams to deliver secure, power-efficient IoT products from prototype to production. You will collaborate across distributed teams to ensure reliable device performance and secure OTA updates, while optimizing power

Qualifications

• 3+ years of hands-on embedded firmware development for IoT.
• Strong proficiency in C in resource-constrained environments.
• Understanding of RTOS concepts (FreeRTOS or equivalent).
• Knowledge of battery-powered design and energy optimization.
• Hands-on experience with wireless protocols (BLE, LTE-M, NB-IoT, Wi‑Fi) and interfaces (UART/SPI/I2C).
• Experience with cloud-connected IoT platforms (AWS IoT or equivalent).
• Experience with manufacturing test fixtures, production flashing, and diagnostics.

Responsibilities

• Design, implement, debug, and maintain embedded firmware for IoT devices, sensors, gateways, and edge hardware.
• Develop production-quality C code for resource-constrained devices.
• Implement wireless connectivity and hardware interfaces (UART, SPI, I2C, MQTT, AWS IoT).
• Collaborate with hardware engineers on board bring-up and integration.
• Build and maintain secure OTA firmware update mechanisms.
• Optimize firmware for performance, memory footprint, reliability, and power efficiency.
• Debug hardware/firmware issues with lab equipment and develop tests.
• Support manufacturing test fixtures, production flashing, and field diagnostics.

Skills

C programming

RTOS concepts

Power optimization

Wireless protocols

Cloud IoT

Education

Bachelor's degree in EE/CE/CS

Tools

Make/CMake

Unity testing

Python scripting

Git

Job description

At Tag-N-Trac, we provide an AI-driven, full-stack IoT traceability solution using custom smart labels and ultra-low-power devices. We use cutting-edge technologies to enable end-to-end supply chain digitization, helping revolutionize supply chain, logistics, and inventory management by providing real-time visibility into assets and shipments.

Our team collaborates closely with Product and Engineering to architect, build, and maintain the technologies that power our IoT devices, core platform, customer-facing APIs, and real-time event processing — all tailored to the challenges of the supply chain industry. We tackle compelling technical problems using data from our fleet of IoT devices and sensors, and we foster a data-driven mindset where good ideas are welcomed regardless of where they come from.

Role Overview

We are seeking an IoT Firmware Developer to design, develop, test, and maintain embedded firmware for Tag-N-Trac’s connected (cellular and BLE) smart labels, sensors, gateways, and ultra-low-power devices. You’ll join an existing firmware team and work closely with hardware, platform, cloud, mobile, and product teams to deliver reliable, secure, and power-efficient IoT products — from prototype through production and into the field.

Key Responsibilities

• Design, implement, debug, and maintain embedded firmware for IoT devices, sensors, gateways, and edge hardware.
• Develop production-quality C code for resource-constrained, low-power embedded environments.
• Implement wireless connectivity (4G LTE and low power LTE-M, NB-IoT, BLE, Wi-Fi) and hardware interfaces/protocols (UART, SPI, I2C, MQTT, AWS IoT).
• Collaborate with hardware engineers on board bring-up, schematic review, and hardware/software integration.
• Build and maintain secure OTA firmware update mechanisms.
• Optimize firmware for performance, memory footprint, reliability, and power efficiency.
• Debug hardware/firmware issues using lab equipment (debuggers, oscilloscopes, logic analyzers) and develop tests to validate quality.
• Support manufacturing test fixtures, production flashing, and field diagnostics for devices in deployment.

Required Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering, Computer Science, or related field, or equivalent practical experience.
• 3+ years of hands‑on embedded firmware development for IoT or related products.
• Strong proficiency in C in resource-constrained environments.
• Solid understanding of RTOS concepts (FreeRTOS or equivalent) — tasks, interrupts, concurrency, memory management.
• Knowledge of battery-powered design — sleep modes, power profiling, energy optimization.
• Hands‑on experience with wireless protocols (BLE, LTE-M, NB-IoT, Wi‑Fi) and standard hardware interfaces (UART/SPI/I2C).
• Experience with cloud‑connected IoT platforms — device provisioning, telemetry, OTA updates, AWS IoT or equivalent.
• Experience with manufacturing test fixtures, production flashing, device calibration, or field service diagnostics.

Nice to Have

• Experience with build systems (Make, CMake), unit testing frameworks (Unity or equivalent), and Python scripting.
• Familiarity with regulatory, safety, or cybersecurity requirements for production devices (e.g., FCC certification).
• Familiarity with Git and collaborative engineering workflows.

Success in the Role

• You are highly entrepreneurial, thrive on taking ownership of your impact, and take initiative to solve problems before they arise.
• You are an excellent collaborator and communicator who listens to others, asks thoughtful questions, and understands that startups are a team sport.
• You are excited by the prospect of working with teammates across distributed locations and time zones.
• You elevate the team’s competency and company culture.

Why Tag-N-Trac

Tag‑N‑Trac is driving disruption in the $8T logistics industry with a novel range of IoT devices and an AI-first approach. Our customers and partners value our products for their grounding in industry thought leadership, execution agility, and product quality. You’ll have a real opportunity to create impact — both by accelerating our product offerings and by helping amplify our values.

You will be working in‑office, collaborating with a small, mission-focused team located at the prestigious T‑Hub in Hyderabad’s Knowledge City. The company is headquartered in San Diego, CA.