Staff Software Engineer (HVAC Controls & System Integration)

Location: Alpharetta, GA, United States; eligible to work in the U.S. without sponsorship.

Salary: $120,000–$140,000 USD annually.

Company

hirify.global develops technology solutions across home appliances, media and entertainment, vehicle solutions, and eco solutions, with a global presence.

What you will do

• Lead system integration testing for HVAC control systems, gateways, and cloud-connected platforms.
• Set up and manage lab environments that replicate field conditions, including electrical wiring and PCBA-level testing, and troubleshoot system-level issues.
• Capture and analyze BACnet, Modbus, RS485, UART, and other communication logs for root cause analysis.
• Verify point lists and interfaces between HVAC equipment and BAS systems, optimizing interoperability across devices and networks.
• Act as the technical liaison between North America and Global HQ in Korea, communicating findings, market needs, and validation results in Korean and English.
• Support pre-sales assessments, on-site evaluations, technical documentation, training, distributor and end-user support, and monitoring of North American HVAC regulations and standards such as Title 24 and AHRI.

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 system integration testing experience and strong troubleshooting knowledge of hardware and software systems.
• Experience with RS485, Modbus, and BACnet serial communication protocols.
• Ability to establish lab environments, including electrical wiring and PCBA-level testing.
• Fluent Korean language skills required for HQ collaboration.
• Eligibility to work in the U.S. without sponsorship.
• Strong analytical, debugging, and problem-solving skills.

Nice to have

• 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.

Culture & Benefits

• Full-time employees receive medical, dental, vision, and prescription benefits with no-cost employee premiums for eligible employees and dependents.
• 401(k) plan with immediate vesting and company matching contributions.
• Paid time off, company holidays, and combined paid sick and vacation time.
• Performance-based short-term incentives, subject to role variation.
• Mental health resources, fitness incentives, paid parental leave, and family support benefits.
• Group life and disability insurance.