Note: The job is a remote job and is open to candidates in USA. LMI is a digital solutions provider supporting government, defense, space, healthcare, and energy missions with technology and mission-ready solutions. LMI is seeking an experienced RF Firmware Engineer to lead firmware development for next-generation mesh networking hardware, integrate RF transceivers, and support hardware bring-up, testing, manufacturing readiness, and customer deployments.
Responsibilities
- Lead firmware development for new RF hardware platforms supporting LMI mesh networking products
- Work directly with external hardware design firms to integrate the Texas Instruments CC1200 transceiver into next-generation hardware designs
- Develop, modify, and maintain embedded firmware to support new RF transceiver capabilities and optimize radio performance
- Design and implement RF communication protocols, device drivers, and hardware abstraction layers
- Support hardware bring-up, debugging, and validation of prototype and production hardware
- Troubleshoot RF performance issues using laboratory test equipment including spectrum analyzers, oscilloscopes, logic analyzers, and RF test equipment
- Collaborate with hardware, firmware, cybersecurity, and systems engineering teams throughout the product lifecycle
- Support firmware verification, manufacturing test development, and production readiness
- Participate in field testing, customer demonstrations, and deployment activities as required
- Produce technical documentation supporting firmware architecture, integration, testing, and manufacturing
- Support design reviews and provide technical guidance on RF system architecture and implementation
- Approximately 20–30% travel to customer sites, integration events, hardware design reviews, manufacturing partners, and field testing activities as required
Skills
- * Bachelor's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related STEM discipline
- * 8+ years of embedded firmware development experience using C/C++
- * Experience developing firmware for RF transceivers or wireless communication systems
- * Experience integrating RF chipsets into embedded hardware platforms
- * Strong understanding of SPI, UART, I2C, GPIO, interrupts, and embedded peripherals
- * Experience debugging embedded systems using JTAG, oscilloscopes, logic analyzers, and RF test equipment
- * Experience working with external hardware vendors and cross-functional engineering teams
- * Strong analytical and troubleshooting skills
- * Excellent written and verbal communication skills
- * U.S. citizenship with the ability to obtain a Secret security clearance
- Approximately **20–30% travel** to customer sites, integration events, hardware design reviews, manufacturing partners, and field testing activities as required
- * Experience with the **Texas Instruments CC1200** transceiver or similar sub-GHz RF devices
- * Experience developing mesh networking or low-power wireless communication systems
- * Familiarity with BLE, LoRa, 802.15.4, or proprietary RF protocols
- * Experience supporting DoD or government technology programs
- * Understanding of secure communications, cryptographic key management, and secure firmware development
- * Experience supporting manufacturing test and production transitions
- * Active Secret or Top Secret security clearance
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