IoT Firmware Developer

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.

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.

•    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.

•    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.

•    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.

•    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.

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.

• Principals only — we will not respond to submissions from recruiters.