Senior Electrical Design Engineer; onsite

Job Overview

Senior Electrical Design Engineer – responsible for electrical analysis, detailed design, controls integration, and overall electrical performance of HVAC equipment, including air handlers, fan coils, and blower coils. Supports new product development, sustaining engineering, prototyping, laboratory validation, and manufacturing execution across air handling, fan coil, and VAV platforms.

Position based onsite in Largo, FL. Candidates must be within commuting distance or willing to relocate.

• Define system-level electrical architectures, perform load analyses, and coordinate protective devices for HVAC equipment platforms.
• Design and review electrical schematics, wiring diagrams, harnesses, panel, enclosure, and junction layouts to support manufacturability, serviceability, and thermal performance.
• Integrate motors, VFDs, EC motors, controllers, sensors, actuators, and control interfaces across both line‑ and low‑voltage systems.
• Develop and maintain electrical engineering standards, parts libraries, specifications, and design rules supporting configurable products and dynamic BOM generation.
• Interpret and apply electrical safety and compliance requirements, including NEC, UL 1995, and UL 60335‑2‑40, ensuring designs meet agency requirements for wiring methods, protection, accessibility, and markings.
• Create and maintain agency listing documentation, support certification testing, and resolve non‑conformances with internal compliance teams and third‑party agencies.
• Support A2L refrigerant programs, including refrigerant detection system integration, alarm and control responses, and sensor location coordination.
• Define and execute electrical test plans; analyze results, identify root causes, and drive corrective actions.
• Collaborate with sourcing to deliver production‑ready electrical BOMs, qualify new suppliers and components, support cost and obsolescence mitigation.
• Support manufacturing engineering with DFMA improvements for smooth transition from design to production.
• Provide electrical guidance to applications engineering, sales, service, and field teams regarding product capabilities, installation constraints, and troubleshooting.
• Lead continuous improvement initiatives to reduce design cycle time and increase engineering throughput.
• Mentor junior engineers and designers, ensuring consistent application of engineering standards and best practices.

• Bachelor’s Degree or equivalent in Electrical or Controls Engineering.
• 5+ years of electrical engineering experience in HVAC or a closely related product‑based manufacturing environment.
• Proficiency in creating 2‑D electrical schematics using AutoCAD or similar tools.
• Experience working with electrical bills of material, component databases, and engineering documentation systems.

• Hands‑on experience supporting prototype builds and laboratory testing of motors, drives, heaters, controllers, and safety devices.
• Familiarity with A2L refrigerant detection systems, wiring practices, and control responses.
• Experience supporting configurable product platforms and dynamic BOM logic.
• 3D CAD experience with Solid Works.
• Working knowledge of NEC, UL 1995, and UL 60335‑2‑40 as applied to equipment wiring, protection devices, and accessibility.
• Prior experience mentoring engineers or designers.

Competitive salary range: $100,000 – $125,000, commensurate with experience and market data. Includes a competitive benefits package. Supports relocation for qualified candidates.

Johnson Controls International plc. is an equal employment opportunity and affirmative action employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, protected veteran status, genetic information, sexual orientation, gender identity, status as a qualified individual with a disability or any other characteristic protected by law. To view more information about your equal opportunity and non-discrimination rights as a candidate, visit EEO is the Law.

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