Note: The job is a remote job and is open to candidates in USA. LMI is a digital solutions provider focused on enhancing government impact through innovation. They are seeking an RFID Solutions & Mesh Firmware Engineer to bridge product development with customer deployment, combining embedded firmware engineering with hands-on RFID solution delivery to support Department of Defense logistics modernization efforts.
Responsibilities
- Design, develop, test, and optimize firmware for embedded Mesh devices, including asset tags, sensors, gateways, and edge devices
- Develop firmware for low-power embedded systems utilizing wireless technologies such as Bluetooth LE, sub-GHz radios, GNSS, and other IoT communication protocols
- Debug, validate, and optimize firmware performance in laboratory and operational environments
- Support hardware bring-up, manufacturing test, firmware validation, and field deployments
- Collaborate with hardware, cloud software, and DevSecOps teams to ensure seamless system integration
- Support secure firmware architecture including OTA updates, provisioning, and cryptographic services
- Maintain firmware version control and support product lifecycle activities from prototype through production
- Travel to customer locations to assess facilities, understand operational workflows, and develop RFID deployment strategies
- Recommend RFID hardware including fixed readers, handheld readers, antennas, printers, and tags based on customer requirements
- Conduct RFID site surveys, RF coverage analysis, and performance optimization
- Lead customer demonstrations, pilot events, and operational evaluations
- Configure and troubleshoot RFID readers, antennas, networking equipment, and associated software
- Analyze RF performance, tag readability, and interference to optimize system performance
- Develop deployment documentation, site survey reports, hardware configurations, and implementation best practices
- Serve as the technical interface between customers and LMI engineering teams, translating field observations into product and platform enhancements
Skills
- 5+ years of experience in embedded firmware development, RFID system deployment, or a combination of both
- Experience deploying passive RFID systems in logistics, warehousing, manufacturing, or defense environments
- Experience developing firmware for embedded systems utilizing C/C++
- Experience working with RF technologies, IoT devices, sensors, or wireless communications
- Experience supporting customer demonstrations, pilots, and operational deployments
- Strong troubleshooting skills across embedded hardware, networking, and RF systems
- Comfortable working directly with government and military customers
- Proficiency in C/C++ for embedded systems development
- Experience with ARM Cortex-M microcontrollers and embedded RTOS environments
- Familiarity with Bluetooth LE, LoRa, GNSS, LTE, or other wireless communication technologies
- Experience with SPI, I2C, UART, USB, and other embedded interfaces
- Understanding of low-power embedded system design
- Familiarity with Zebra, Impinj, RF Controls, or similar enterprise RFID platforms
- Understanding of RF propagation, antenna selection, and RFID performance optimization
- Knowledge of DFM and DFT principles supporting embedded hardware development
- Builder's mindset with a passion for solving customer problems in the field
- Comfortable balancing firmware development with customer-facing engineering activities
- Excellent communication and presentation skills with technical and non-technical audiences
- U.S. Citizenship required
- Ability to obtain and maintain a Secret security clearance
- Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or related field
- Active Secret or Top Secret clearance
- Experience with Nordic nRF, STM32, ESP32, or similar embedded platforms
- Experience with passive RFID deployments utilizing Zebra, Impinj, or RF Controls hardware
- Knowledge of secure embedded systems, cryptographic key management, or FIPS 140-2/140-3
- Experience supporting military logistics, Army, Navy, or other DoD modernization programs
- Familiarity with manufacturing test development, production validation, or OTA firmware delivery
- Experience supporting warehouse automation, RTLS, or industrial IoT deployments
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