Johnson Controls · 1 day ago
Senior Mechanical Engineer (onsite)
Largo-Florida-United States of America
Full-time
Onsite
Mid, Senior Level
$90K/yr - $120K/yr
5+ years expJohnson Controls is seeking a Senior Mechanical Engineer! In this role, you will be responsible for mechanical analysis, detailed design, subsystem integration, and overall mechanical performance of HVAC equipment across Enviro‑Tec air-handling, fan-coil, and blower-coil platforms.
Industrial EngineeringPhysical SecuritySmart Building
Responsibilities
Perform mechanical analysis and detailed design for AHUs, FCUs, BCUs and related subsystems including sheet metal, enclosure structures, panels, fan/motor assemblies, coil integration, and airflow pathways
Develop innovative design solutions for custom HVAC equipment based on customer-specific requirements and product performance targets
Execute design improvements that optimize manufacturability, serviceability, acoustics, energy efficiency, and product quality
Create and maintain mechanical engineering standards, CAD models, technical documentation, and design specifications
Develop design rules and logic used in configurable/dynamic BOM generation
Interpret and implement UL 60335-2-40 mechanical safety and A2L refrigerant requirements for clearances, airflow paths, compartment construction, and enclosure integrity
Coordinate with compliance partners and agencies (e.g., Intertek/ETL) to validate mechanical requirements and securement tests
Ensure mechanical designs meet relevant safety, installation, and regulatory standards
Define and execute test plans in partnership with the Largo Test Lab (airflow performance, thermal testing, vibration, structural integrity)
Lead prototype builds and fit‑up verification for assembly feasibility and service access
Oversee testing of fans, motors, mechanical components; analyze data and drive corrective actions
Support manufacturing engineering with BOMs, routings, assembly sequencing, and DFM/DFA improvements
Evaluate mechanical vendors and qualify new components including fans, bearings, heating elements, insulation materials, and assemblies
Provide mechanical guidance to marketing, applications, sales engineering, service, and field teams
Generate clear and accurate drawings, installation details, and mechanical instructions
Support PFMEA reviews, root‑cause analyses, corrective actions, and engineering change processes
Maintain consistency with Largo drafting/documentation standards and mentor drafters/designers
Qualification
Required
Bachelor's Degree in Mechanical Engineering
5+ years of mechanical engineering experience in product development
Understanding of thermodynamics, heat transfer, and airflow fundamentals
Experience designing sheet‑metal assemblies. Preferably fan/motor systems, coil integration, heater assemblies, and structural components
Familiarity with mechanical aspects of UL 1995
Preferred
HVAC industry experience
Experience with lab testing, vibration/structural analysis, acoustics, or CFD
Knowledge of sheet-metal fabrication, brazing/welding, fastening, gasketing, and insulation
Understanding of DFMEA, DFM/DFA, cost modeling, and value engineering
Experience with configurable platforms and dynamic BOM logic
Cross‑functional experience with test labs, compliance, sourcing, and service
Benefits
Competitive benefits package
Company
Johnson Controls
Johnson Controls offers smart buildings that create safe, healthy, and sustainable environments.
10001+ employees
H1B Sponsorship
Johnson Controls has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (61)
2024 (57)
2023 (80)
2022 (95)
2021 (81)
2020 (93)
Funding
Current Stage
Public CompanyTotal Funding
$1.6BKey Investors
US Department of Energy
2024-12-05Post Ipo Debt· $250M
2024-12-04Post Ipo Debt· $525.61M
2024-05-20Post Ipo Equity· $90M
Leadership Team
Joakim Weidemanis
Chief Executive Officer
Marc Vandiepenbeeck
Executive Vice President and Chief Financial Officer
Recent News
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