Heatcraft Worldwide Refrigeration · 3 hours ago
Mechanical Engineer IV
Carrollton, TX, US
Full-time
Onsite
Senior Level, Lead/Staff
$115K/yr - $140K/yr
8+ years expHeatcraft Worldwide Refrigeration, a part of Lennox International, is a leading innovator in HVAC and refrigeration solutions. They are seeking a Mechanical Engineer IV to lead engineering efforts for residential air handlers and indoor coils, ensuring product development, certification, and compliance with industry standards.
Manufacturing
Responsibilities
Lead end-to-end engineering for residential air handler and indoor coil platforms, including concept development, detailed design, prototyping, testing, and product launch
Own system- and component-level design decisions for sheet metal, plastics, heat exchangers, motors, blowers, insulation, controls integration, and refrigerant circuitry
Interpret test results and drive optimization recommendations for coil/air handler performance, refrigerant charge, airflow, and system configuration to meet regulatory and market efficiency targets
Develop, analyze, and validate system performance ratings (SEER2, EER2, HSPF2, capacity ratings, and AHRI matchups) through lab testing, data modeling, and cross-functional collaboration
Lead Air Handler electric heat testing and certification activities to ensure all electric heat modules and integrated air-handler assemblies meet UL 60335-2-40 safety requirements, including thermal protection, electrical clearances, wiring, component compliance, and abnormal operation testing
Drive engineering execution for new product introductions, value engineering initiatives, and sustaining engineering efforts
Guide junior engineers and provide peer review for design evaluations, calculations, DFMEAs, and test plans
Ensure all products meet applicable regulatory and industry requirements, including UL/ETL, AHRI standards, DOE efficiency requirements, regional codes, and refrigerant transition regulations
Lead certification testing and documentation processes, including performance mapping, safety evaluations, and reliability validations
Maintain strong working relationships with certification agencies and internal compliance teams
Define system-level verification and validation plans, including airflow, capacity, sound, pressure drop, condensate management, and reliability testing
Collaborate with test labs to interpret data, troubleshoot issues, and optimize performance
Drive root-cause analysis and corrective actions for field issues, quality deviations, or manufacturing defects
Partner with program management, manufacturing engineering, supply chain, quality, and product management to deliver on schedule, cost, and performance targets
Support manufacturing plants with design releases, engineering changes, tooling decisions, assembly process, PFMEA inputs, and build issues
Work closely with sourcing and suppliers to optimize cost, improve component performance, and ensure long-term reliability
Lead engineering activities in alignment with phase-gate and Independent Design Review processes, ensuring clear documentation, timely deliverables, and risk mitigation
Approve drawings, specifications, CAD models, and engineering change notices
Develop and maintain technical design standards, best practices, and engineering guidelines for air handlers and indoor coils
Qualification
Required
Bachelor's degree in Mechanical Engineering, Aerospace Engineering, or related technical field
8+ years of experience in HVAC product development
Strong understanding of air handlers, indoor coils, refrigeration principles, and airflow systems
Proficiency with CAD and BOM release/updates through Change Notice management tools like WindChill
Experience with UL/ETL, AHRI testing, and DOE regulatory requirements
Strong analytical, problem-solving, and communication skills
Demonstrated leadership in technical teams or product development programs
Benefits
Tuition reimbursement
Medical, dental, and vision insurance
Prescription drug coverage
401(k) retirement plan
Short-term disability insurance
8 weeks paid birthing leave
2 weeks paid bonding leave
Life and long-term disability insurance
12 days paid time off
2 paid well-being days
1 paid volunteer day
9 to 11 paid company holidays depending on the year
3 floating holidays per year
Company
Heatcraft Worldwide Refrigeration
Heatcraft Worldwide Refrigeration is a company that fulfills all your commercial refrigeration needs.
1001-5000 employees
Funding
Current Stage
Late StageCompany data provided by crunchbase