Principal Engineer - IoT Firmware & Systems

Job Title/Designation: Principal Engineer - IoT Firmware & Systems 

Job Location: Atlanta, GA

Contract: 12+ months Contract

Job Function, Roles, and Responsibilities:

Architect robust, secure IoT systems while balancing trade-offs between cost, power, and performance.
Direct the end-to-end firmware lifecycle, ensuring scalability and design reliability.
Lead Over-the-Air (OTA) update strategies for secure post-deployment features.
Ensure product adherence to global wireless and security standards (FCC, CE, RED).
Translate product requirements into task breakdowns, effort estimations, and execution plans.
Manage communication and delivery expectations with cross-functional teams and external partners/vendors.
Oversee factory-test firmware and partner with manufacturers on products.
Maintain high-quality architecture diagrams, API specs, and internal knowledge bases.
Utilize Jira/Agile workflows to track milestones and report technical health to leadership.
Conduct technical risk assessments and track to project progress.
 

Technical Expertise: 

Expertise in C and C++ programming for microprocessor, microcontroller, and SoC architectures
Expertise in bare metal, Deep knowledge of RTOS, device drivers, and multi-threaded application development 
Experience in wireless technologies such as Wi-Fi, BLE, Threads, Matter, and Sub-GHz
Experience in networking protocols such as TCP/IP, UDP, Secure MQTT, HTTPS, and  Amazon Sidewalk
Expertise in secure IoT cloud communication and integration 
Experience in serial communication interfaces such as RS-485, RS-232, I2C, SPI, and MODBUS
Expertise in Bootloader, Secure boot, RAND, ECC, RSA, and Power modes for MCU platforms
Experience with debugging tools such as GDB, J-Link, and static code analyzers
Experience with various HW platforms bring-up and debugging using DSO, Logic analyzer, and Power profiling tools
Proficiency with CI/CD automation tools and workflows, specifically including Jenkins

Soft Skills: 

Ability to weigh technical trade-offs against cost, time, and reliability.
Strong problem-solving skills for resolving race conditions, memory leaks, and concurrency issues.
Effective at presenting technical status to management and collaborating with cross-functional hardware teams.