Software Engineer III (Electronics)

U.S. Water Heating; Roswell (GA); On-site; USD 100,000 - 130,000; Full time

Job summary

U.S. Water Heating is seeking a Software Engineer III in Roswell, GA, to develop software for embedded microcontrollers focusing on electronic controls for HVAC and water heating products. This role involves collaboration with various departments to ensure software requirements are met.

The candidate should possess a Bachelor's degree in Engineering and have over 5 years of software engineering experience, particularly with C/C++ in embedded systems. Key responsibilities also include leading design reviews and developing automated testing methodologies.

Qualifications

• 5+ years of experience in IT or engineering-related fields.
• Expert-level programming experience in C language.
• Experience with multiple communication media and protocols.

Responsibilities

• Develop software for embedded applications and validate software.
• Work with systems engineering to capture requirements.
• Lead and participate in design reviews and documentation.

Skills

C/C++ software engineering experience

Communication protocols (CAN, BACnet, Modbus)

Test-driven design methodologies

Embedded systems experience

Cross-functional collaboration

Problem solving & decision making

Education

Bachelor's degree in Engineering or related field

Tools

Microsoft Office Suite

Git version control

Job description

Software Engineer III (Electronics) is responsible for the development of software for embedded microcontrollers. Software development is focused on electronic controls for HVAC and water heating products including requirements, design, qualification, and life cycle support. Will work to implement and extend a common controls architecture strategy within Rheem.

This position will serve Rheem North America and can be based in Roswell, GA, Montgomery, AL or Lewisville, TX (Onsite).

• Work with systems engineering, product engineering, marketing, manufacturing, and others to capture electronic control requirements for specific HVAC and water heating applications.
• Work collaboratively with the Lead Software and Systems Architecture Engineer to develop and extend software architecture and design for software applications.
• Develop software for embedded applications, following team conventions for design and documentation. Provide a comprehensive self-review and test of the software. Work with systems and product engineers to support the validation of the software in the product application, with a focus on identifying and resolving any software, hardware, or system anomalies. Work with controls contract manufacturers, product manufacturing engineering, and service on the implementation and validation of software features to support construction and field support. Support the development of tools for PC, handheld, and other devices that could be used for development, testing, manufacturing, service, or other applications. Work with cross‑functional teams through direct interactions and team meetings in developing and translating new concepts into applications.
• Develop performance and qualification test methods, coordinate the implementation of experiments, and evaluate test results.
• Lead and participate in formal design reviews of electronic controls requirements, schematics, layouts, and software, as well as FMEA, DFM, DFT, and other related analyses.
• Prepare and support the review and release of formal requirements, design, and qualification documentation.
• Continue to develop professionally.
• Represent the company as requested in technical societies and keep the company advised of pertinent developments, new concepts, and opportunities.
• Performs other duties as assigned.

• An innovative solution‑first spirit and an ability to think creatively.
• Bachelor’s degree in Engineering, Computer and Electrical Engineering, Computer Science, or related field.
• 5+ years of experience in IT and/or engineering‑related fields.
• 5+ years of C/C++ software engineering experience in multi‑threaded, real‑time embedded systems.
• Experience in the developing of production software for embedded microprocessor‑based controls in assembly and C. Expert‑level programming experience in assembly and C language.
• Experience with multiple communications media and protocols including, but not limited to, wired, wireless, optic, CAN, BACnet, Modbus, TCP/IP.
• Experience with serial communication like I2C, UART, SPI, and Modbus communication. Working experience with various microcontrollers like Renesas, STMicro, Cypress, etc.
• Experience in Secure Boot, X509, TLS, Encrypted File Systems. Experience in presenting technical information to groups.
• Experience working successfully with multiple departments such as R&D, marketing, manufacturing, service engineering, suppliers, and customers.
• Familiarity with test‑driven design methodologies to develop automated unit and system tests of software.
• Technical knowledge of product design and failure analysis. Working knowledge of statistical methods or Design‑of‑Experiments (DOE).
• Experience with electronic analysis methodologies and associated instrumentation. Proficiency in Microsoft Word, Excel, and PowerPoint. Demonstrated ability to work well with others in a team environment.
• High technical aptitude. Able to work with cross‑functional teams (e.g., product managers, engineers, business teams) and external subject matter experts. Passionate about building and owning innovative, customer‑facing services/products.
• Great presentation and communication skills. Proficient computer skills and in‑depth knowledge of relevant software such as MS Office Suite.
• Working experience with the version control tool like Git and its integration with the remote server, e.g., GitHub, GitLab, etc.
• Knowledge and experience with UL 60730, including software development, documentation, and certification approval process to meet UL safety requirements.
• Design, prototyping, and development experience with the control system with PID control.

How to Stand Out

• Master’s degree in Computer or Electrical engineering.
• HVAC / Water Heating industry experience.

As a leader at Rheem, how you achieve results is as important as the results you achieve. While LEADING OTHERS, you will be expected to demonstrate the following competencies and behaviors:

Leadership Competencies

• Aligning Performance for Success
• Applying Business Knowledge
• Building Talent
• Building Trusted Relationships
• Communicating with Impact
• Customer-Orientation
• Delegating Tasks
• Executing/Leading the Team
• Facilitating Change
• Fostering Relationships/ Emotional Intelligence
• Influencing
• Problem Solving & Decision Making
• Supporting Innovation

Equivalent combination of education, experience, and skills may supplement above minimum job requirements.