Principal Engineer - IoT Firmware & Systems

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

Experience Range: 10+ Years in Embedded Firmware design and development

Job Location: Indianapolis, Indiana

Education Criteria: Bachelor s or Master s degree in Electronics/EEE/ECE/Computer Science or equivalent

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.