Firmware Engineer; Subject Matter Expert

Develops embedded firmware for HVAC equipment for world’s largest HVAC company based in Greater Houston, TX. This role will interact with advanced thermal and mechanical engineers, will understand key operating principles of electro‑mechanical systems and will develop advanced and smart control mechanisms.

• Technical:
  • Develop embedded firmware for consumer appliances and Smart Home devices – Air Handler, Furnace, Thermostat, Smart Home devices, wired and wireless sensors, IoT Edge devices.
  • Develop embedded C code based on complex flow chart, state diagram to control electromechanical system.
  • Develop firmware stack for RS-485 based communication.
  • Develop software architecture, Hardware Abstraction, and reusable software components.
  • Develop firmware specification documents.
  • Develop and maintain code base using version control, CI/CD, test automation.
  • Implement unit testing and CI/CD pipeline.
  • Perform detailed bench and lab testing of firmware.
  • Support and troubleshoot software bugs and issues in products in field.
  • Analyze system requirements and translate them into firmware specifications.
  • Collaborate with hardware engineers to ensure seamless integration of firmware and hardware components.
  • Debug and troubleshoot firmware issues using tools such as oscilloscopes, logic analyzers, and debuggers.
  • Optimize firmware for power consumption, memory usage, and performance.
  • Develop and implement software algorithms for complex system control and data processing.
  • Develop and maintain firmware libraries and drivers.
  • Write code for real‑time operating systems (RTOS) and bare‑metal environments.
  • Collaborate with software engineers to ensure seamless integration between firmware and application software.
  • Develop and maintain firmware version control and release processes.
  • Participate in design reviews and provide technical expertise and recommendations.
  • Conduct research on emerging technologies and best practices in firmware development.
• Other:
  • Interface well with other teams to perform root cause analysis and develop solutions to production problems.
  • Coordinate with production engineering and maintenance teams to lead equipment repairs and projects.
  • Present and justify design decisions in design review meetings.
  • Perform additional projects or duties to support ongoing business needs.

• Subject matter expert.
• Has broad and comprehensive expertise in leading‑edge theories, techniques and/or technologies within own function or discipline.
• Proactively identifies and solves the most complex problems that impact the management and direction of the business.
• Participates in the development of the product or business strategy.
• Leads multidisciplinary projects or initiatives.

• Technical
  :
  • Programming language for embedded systems (e.g., Embedded C or C++).
  • Programming for microcontrollers (Microchip, Atmel, ST, Renesas or equivalent).
  • Serial communication:
    Modbus/RS232/I2C/CAN.
  • FreeRTOS or equivalent real time OS.
  • Expertise in scripting languages.
  • CI/CD tools, Docker.
  • JIRA, Git, Test Management Suites.
  • Knowledge of microcontroller architectures and embedded system design principles.
  • Familiarity with digital and analog circuits and signal processing techniques.
  • Experience with firmware debugging using oscilloscopes, logic analyzers, and debuggers.
  • Ability to develop and maintain software libraries and drivers.
  • Knowledge of communication protocols such as I2C, SPI, UART, and CAN bus.
  • Familiarity with software version control and release processes.
  • Understanding of software security principles and implementation.
• Process
  :
  • Software Project Management and Lifecycle.
  • Unit Testing.
  • Test Automation.
  • CI/CD.
  • Experience with firmware performance optimization and memory management.
  • Ability to write and maintain high‑quality and efficient code.
  • Understanding of software development processes and methodologies.
  • Familiarity with software testing and verification techniques.
  • Excellence in Microsoft Office tools – including Advanced Excel, MS Project, PowerPoint, MS Word, Automation via VBA, and Macro and SharePoint.
  • Shall possess excellent communication, ability to explain complex technical contents, desire to work in…