Senior Hardware Design Engineer

We are seeking a highly skilled Senior Hardware Design Engineer to own the detailed component-level design, schematic capture, PCB layout oversight, and physical prototyping of our next-generation 50kW Hybrid Inverter. In this role, you will transform system-level architectural specifications into robust, high-efficiency electrical hardware. You will design critical power stages, gate drivers, magnetic filters, and analog sensing circuits. Your work will directly impact the reliability, thermal efficiency, and commercial success of our Commercial & Industrial (C&I) BESS solution.

Key Responsibilities:

• Design and optimize bidirectional power topologies, including buck-boost DC-DC stages for batteries, MPPT stages for solar PV, and three-phase DC-AC inverter bridges. Knowledge on Power conversion, rectification, switching circuits, PFC, DC/DC and DC/AC inverters, EMI/EMC compliant design experience. 

• Select and evaluate power semiconductors, evaluating SiC MOSFETs or IGBTs for efficiency, thermal performance, switching loss, and safe operating area (SOA).

• Design and specify custom magnetic components, including high-frequency inductors, common-mode chokes, and LCL grid-filter networks.

• Design isolated gate driver circuits with robust short-circuit protection (desaturation detection), Miller clamp functionality, and optimal switching speeds.

• Microcontroller/Microprocessor/FPGA based designs

• Develop high-precision analogue sensing paths for voltage, current, and temperature monitoring using isolated operational amplifiers, Hall-effect sensors, and delta-sigma modulators.

• Good understanding of control strategies for DC-DC converters (voltage mode, current mode, digital control, etc.) with the ability to perform detailed stability analysis via simulations and analytical methods.

• Design low-voltage auxiliary power supplies (SMPS) to provide stable internal DC rails (e.g., 24V, 15V, 5V, 3.3V) derived directly from high-voltage DC buses or AC grid lines.

• Own the complete electrical schematic capture using industry-standard ECAD tools (such as Altium Designer, Cadence Allegro, or Mentor Graphics).

• Direct high-power PCB layout strategies, ensuring proper creepage and clearance metrics, optimized current density pathways, minimized parasitic inductance, and robust EMI/EMC shielding.

• Bring up, debug, and test physical prototypes in a high-power lab environment, utilizing oscilloscopes, power analyzers, and electronic loads.

• Collaborate with mechanical engineers to optimize thermal dissipation via heatsinks, liquid cooling blocks, or forced-air duct systems.

• Implement hardware-level protection mechanisms, including over-voltage, over-current, reverse-polarity, surge protection (SPDs), and fuse coordination for high-voltage DC and AC lines.

Required Skills & Technical Qualifications:

• Component-Level Electronics Design: Deep expertise designing circuits handling up to 1500V DC and 100A+ AC currents.

• EMI/EMC Engineering: Proven ability to design boards that pass strict emissions and immunity standards (such as FCC Part 15, CISPR 11/22, and IEC 61000 series).

• Should be familiar with component selection, derating strategies and DFMEA. Should be familiar with LTSpice, PSpice

Education: Bachelor’s or Master’s degree in Electrical Engineering, Power Electronics, or an equivalent technical discipline.

• Experience: Minimum of 5–8 years of direct hands-on hardware design experience in high-power electronics (solar inverters, motor drives, EV fast chargers, or heavy-duty UPS).

• Successful track record of designing and releasing at least one commercial power converter platform rated at 30kW or higher.