Hardware Engineer - Motor Controller

raptee.com; Tamil Nadu; On-site; INR 600,000 - 1,200,000; Full time

Benefits offered by this job

Opportunities for professional advancement

Collaborative team environment

Dynamic work culture

Access to industry experts

Job summary

raptee.com is seeking a talented Hardware Engineer in Tamil Nadu. In this role, you will design and validate power electronics and low-voltage hardware for our cutting-edge electric motorcycles. Your contributions will impact vehicle efficiency and drivability directly.

The ideal candidate will have a background in electrical engineering, extensive experience in PMSM motor control strategies, and a strong understanding of control theory, specifically in the context of automotive applications. Join us to be part of a dynamic startup shaping the future of transportation.

Qualifications

• Deep understanding of PMSM/IPM motor controller hardware and control strategies.
• Strong knowledge of schematic-level design for power and low-voltage circuits.
• Hands-on experience in hardware validation and debugging.

Responsibilities

• Design power electronics and validate components for PMSM controllers.
• Develop mathematical models for inverter-motor systems and analyze stability.
• Collaborate on microcontroller selection and align requirements with software.

Skills

PMSM/IPM motor controller hardware expertise

Control theory understanding

Schematic design experience

Hardware debugging skills

MATLAB/Simulink familiarity

Education

B.E./B.Tech or M.E./M.Tech in Electrical, Electronics, Power Electronics, or Control Systems Engineering

Tools

MATLAB

Simulink

Job description

Overview

Raptee.HV is a full‑stack electric motorcycle startup founded in 2019 by engineers from Chennai (previously at Tesla and Wipro). We are incubated at CIIC & ARAI and aim to revolutionize the EV market by offering a high‑performance motorcycle alternative.

Why Join Us?

As a Hardware Engineer you will own the schematic design, MCU selection, control analysis, and debugging of our PMSM motor controllers. Your work will directly shape the efficiency, drivability, and reliability of our motorcycles.

This role offers a unique chance to bridge theory and practice—combining advanced control mathematics, hardware design, and real‑world validation—with your designs powering vehicles on the road.

Key Responsibilities

• Power Electronics & High-Voltage Hardware
  • Design inverter stages, gate driver circuits, protection circuits, and sensing hardware for PMSM controllers.
  • Select and validate semiconductors (MOSFETs, IGBTs, drivers, sensors) with attention to thermal and EMI/EMC constraints.
  • Support EMI/EMC compliance and reliability engineering.
• Low-Voltage & Schematic-Level Design
  • Create schematics for microcontroller circuits, decoupling, RC filters, and signal conditioning.
  • Define best practices for analog vs digital ground separation, noise mitigation, and mixed-signal design.
  • Provide clean schematic packages for PCB design engineers and review their implementation.
• Mathematical Modeling & Control Analysis
  • Develop mathematical plant models of inverter–motor systems using Laplace transforms and transfer functions.
  • Perform stability analysis and analytically calculate PI/PID gains before dyno validation.
  • Simulate and validate control loops in MATLAB/Simulink.
• Advanced PMSM Control Strategies
  • Apply advanced PMSM/IPM control methods such as MTPA, MTPV/field weakening, and deep field weakening.
  • Understand differences in strategy between surface PMSM and interior PMSM.
  • Implement and validate smooth transitions between torque control, MTPA, and flux-weakening regions.
  • Optimize strategies for efficiency, drivability, and thermal limits.
• Hardware Debugging & Validation
  • Bring up new boards, validate signals, and debug hardware issues across power and low‑voltage domains.
  • Diagnose noise, grounding, or signal integrity problems and propose corrective design changes.
  • Validate torque output, efficiency, and stability on dyno setups.
• System Architecture & MCU Selection
  • Collaborate with software and firmware engineers to select appropriate microcontrollers.
  • Define requirements such as clock speed, memory size, ADC resolution, PWM frequency, and peripheral availability.
  • Decide pin mapping, communication interfaces (CAN, SPI, I2C, UART), and safety features.
  • Ensure hardware choices align with control‑loop timing and software requirements.
• Vehicle‑Level Perspective
  • Understand how motor controller design affects regen strategies, drive‑cycle energy use, and overall vehicle range.
  • Use vehicle‑level simulations to align hardware and control choices with efficiency and drivability goals.

What We’re Looking For

• B.E./B.Tech or M.E./M.Tech in Electrical, Electronics, Power Electronics, or Control Systems Engineering.
• Strong knowledge of PMSM/IPM motor controller hardware (inverters, gate drivers, sensing, protection).
• Deep understanding of control theory: Laplace transforms, transfer functions, Bode/Nyquist stability, PI/PID tuning.
• Practical expertise in advanced PMSM control strategies (MTPA, MTPV, flux weakening, deep field weakening).
• Experience in schematic‑level design of both power and low‑voltage circuits.
• Hands‑on experience in hardware debugging and board bring‑up.
• Familiarity with MATLAB/Simulink for plant modeling, control simulation, and vehicle‑level analysis.
• Experience validating controllers on dyno setups.
• Ability to collaborate on microcontroller selection and requirements definition with software teams.

Nice‑to‑Have

• Experience with automotive standards (ISO 26262, EMI/EMC).
• Exposure to state‑space or observer‑based control methods.
• Knowledge of thermal design and reliability analysis.
• Experience with HIL testing or rapid prototyping.

What’s In It for You

• Opportunity to work in a fast‑paced and dynamic environment.
• Opportunities for professional advancement as the company grows.
• A culture that fosters collaboration and creativity within the team.
• Collaborate closely with seasoned experts in the field.