Embedded Software Engineer (only w2 contractors)

• The Embedded Software Engineer will develop and maintain embedded firmware for ARM Cortex-M-based wireless systems, working closely with hardware and RF engineering teams., * Develop, debug, and maintain embedded firmware.
• Develop wireless and sub-GHz communication features.
• Implement bootloaders and OTA firmware updates.
• Debug hardware and wireless issues using J-Link/SWD/GDB.
• Optimize firmware for low-power applications.
• Work with hardware and RF engineers on system integration and troubleshooting.
• Support embedded security and wireless protocol development.
• Document technical designs, testing, and troubleshooting.

Must have experience with: RF/Sub GHz/ Z-wave, * Strong Embedded C experience.

• Bare-metal and RTOS firmware development.
• ARM Cortex-M/M33 experience.
• Interrupt-driven architectures.
• DMA, timers, watchdogs, GPIO, UART, SPI, and I2C.
• Bootloaders and OTA firmware updates.
• J-Link, SWD, and GDB debugging.
• Low-power firmware development.
• Strong wireless/sub-GHz experience, preferably Z-Wave.
• Mesh networking and wireless sensor networks.
• Silicon Labs EFR32, Simplicity Studio, and Gecko SDK experience preferred.
• Z-Wave 700/800, SmartStart, S2 security, Zniffer, and PTI experience preferred.
• Knowledge of secure boot, firmware signing, encrypted OTA, and secure authentication.
• RF/EMC/EMI troubleshooting knowledge is a plus.
• Git, CI/CD, automated testing, and modular firmware architecture preferred., * Bachelor’s (Required), * embedded software development: 5 years (Required)
• RF/Sub-GHz wireless development: 5 years (Required)
• Z-Wave or similar wireless protocol: 5 years (Required)

$75 - $100 an hour - Full-time, Contract

22nd Century Technologies, Inc., is one of the fastest growing IT Service Integrator and Workforce Solution companies in the United States. Founded in 1997, 22nd Century Technologies is a Certified National Minority Business Enterprise with 6,000+ people including 600+ Cyber SMEs nationwide supporting our customers in all 50 states, Canada, and Mexico. With HQs in Somerset, NJ and Mclean, VA, 22nd Century has 14 offices throughout the United States. As part of our unrelenting focus on quality and compliance, 22nd Century Technologies’ delivery is based on Certified Matured Processes including CMMI L3 Dev & SVC, ISO 20000, ISO 27001, and ISO 9001 quality processes. With a strong focus on the public sector, 22nd Century currently holds government contracts with 14 out of 15 Federal Executive agencies including DoD, 37 other Federal agencies, 50 States, 115+ Local agencies, and 37 School Districts. In the last three years, we have expanded our services to Fortune 500 and other commercial clients and currently support 80+ commercial clients.

Recognized among “Best Company to Work For” by Forbes, 22nd Century Technologies, Inc., consistently exceeds our clients’ expectations by focusing on their absolute satisfaction with jobs while keeping our employees motivated.