Firmware Engineer II - HVAC Electrical Systems

Engineer II Firmware Engineering X

Key Responsibilities

· Design and develop electrical systems for HVAC machines, including screw chillers and thermal products.

· Prepare and review electrical schematics, wiring diagrams, GA drawings, and BOMs.

· Select and integrate electrical components such as MCCBs, contactors, relays, VFDs, sensors, heaters, and protection devices.

· Support control panel design, power distribution, earthing, and safety interlocks for chiller systems.

· Support PLC and HMI programming activities, including basic logic modifications, I/O mapping, tag management, and parameter settings.

· Coordinate BMS integration (e.g., BACnet/Modbus) and support testing, signal mapping, and system validation.

· Participate in dry testing, DVT, and performance testing of machines in lab and factory environments.

· Troubleshoot electrical and control-related issues during development, production, and site commissioning.

· Coordinate with Mechanical, Controls, Software, QA, Sourcing, and Service teams for system integration and issue resolution.

· Ensure compliance with applicable electrical standards, safety guidelines, and company processes.

· Support component localization and cost optimization initiatives without impacting quality or performance.

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Required Skills & Qualifications

· Bachelor’s degree in Electronics Engineering or equivalent.

· 3–6 years of relevant industry experience (Engineer II level).

· Strong machine-level experience in HVAC systems, especially screw chiller machines.

· Good knowledge of industrial electrical systems, control panels, and VFD-based applications.

· Working experience or exposure to PLC and HMI programming in industrial applications.

· Knowledge of BMS integration protocols such as Bacnet and Modbus is preferred.

· Basic knowledge of programming languages such as C, C++, Structured Text (ST), and Function Block Diagram (FBD).

· Hands-on experience in testing, commissioning, and troubleshooting HVAC equipment.

· Ability to read and interpret electrical drawings, control schematics, and documentation.

· Good communication skills and ability to work effectively in cross-functional teams.

Experience Level

Mid Level