Staff Software Engineer
About The Position
The HVAC Controls & System Integration Engineer serves as a subject matter expert for proprietary control systems and integration solutions. The role is responsible for system integration testing, lab and field validation, regulatory awareness, and cross-functional collaboration to support successful deployment of HVAC control solutions in the North American market. It combines technical expertise with consultative and leadership work across internal teams, distribution partners, and Global HQ. The engineer leads integration testing for HVAC control systems, gateways, and cloud-connected platforms; establishes lab environments that replicate field conditions; and investigates system-level issues using communication logs. The role also verifies interfaces between HVAC equipment and building automation systems, supports pre- and post-sales activities, develops technical and training materials, and serves as the technical liaison between North America and Global HQ in Korea. Korean and English communication skills are required.
Requirements
- Bachelor’s degree in Mechanical Engineering, Electrical Engineering, Computer Engineering, Computer Science, or a related field.
- 10+ years of experience in HVAC controls, system integration, or a related controls industry.
- Hands-on experience with system integration testing.
- Strong troubleshooting knowledge of hardware and software systems.
- Experience with serial communication protocols, including RS485, Modbus, and BACnet.
- Ability to set up lab environments, including electrical wiring and PCBA-level testing.
- Fluent Korean language skills for collaboration with Global HQ.
- Strong analytical, debugging, and problem-solving skills.
- Eligible to work in the U.S. without sponsorship.
Nice To Haves
- Experience with VRF or ductless mini-split systems.
- Experience with embedded systems or microcontrollers.
- Familiarity with cloud-connected HVAC platforms.
- Programming experience in C, C#, or a similar language.
- Experience developing technical documentation or training materials.
- Experience with mobile control applications such as LG ThinQ or similar platforms.
Responsibilities
- Lead system integration testing for HVAC control systems, gateways, and cloud-connected platforms.
- Establish and manage lab environments that replicate field conditions and troubleshoot system-level issues.
- Capture and analyze communication logs, including BACnet, Modbus, RS485, and UART, for root cause analysis.
- Support integrated validation of cloud-based HVAC control platforms.
- Verify point lists and communication interfaces between HVAC equipment and building automation systems.
- Troubleshoot serial communication protocols, including RS485, Modbus, and BACnet.
- Optimize interoperability and compatibility across devices and networks.
- Serve as the primary technical liaison between North America and Global HQ in Korea.
- Communicate technical findings, market needs, and validation results in Korean and English, and gather knowledge from HQ to strengthen U.S. operations.
- Support pre-sales technical assessments and on-site control system evaluations.
- Develop application guidelines, technical documentation, and training materials.
- Deliver product and application training to internal teams, representatives, and partners.
- Provide consultative support to distributors and end users.
- Monitor North American HVAC regulations and standards, including Title 24 and AHRI, and track industry trends and evolving control technologies.
- Identify technical opportunities for market expansion and product improvement.
Benefits
- No-cost employee premiums for eligible employees and dependents for medical, dental, vision, and prescription benefits.
- Company matching contributions to a 401(k) retirement savings plan, with immediate vesting.
- Paid time off, including company holidays and combined paid sick and vacation time.
- Performance-based short-term incentives, varying by role.
- Access to confidential mental health resources.
- Personal fitness goal incentives.
- Paid parental leave and family support for families raising children with learning, social, behavioral challenges, or developmental disabilities.
- Group-rate life and disability insurance.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
