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System Test Engineer- MCU

Larsen & Toubro · Posted today

  • Coimbatore South, Tamil Nadu, India (On-site)
  • Full-time
  • 3-8 yrs

About the role

Business Unit: EPS Mobility

Role: System Tester – MCU (Motor Control Unit)

The System Tester for Motor Control Unit (MCU) is responsible for end-to-end verification and validation of motor control systems across bench, HIL/SIL, inverter test rigs, dyno, and vehicle-level environments. The role ensures the MCU meets requirements for functionality, performance, robustness, diagnostics, reliability, and compliance under real-world operating conditions and corner cases.

Key Responsibilities

  • Create and maintain system test strategy, test plans, and test matrices aligned to product requirements.
  • Derive test scenarios from system requirements, use cases, and safety/quality goals.
  • Define test coverage across operating modes (normal, derating, limp-home, fault modes) and environmental conditions.
  • Develop and execute tests for motor control MCU functions, such as:
  • Start/stop sequences, torque/speed control response, mode transitions
  • Regeneration and braking coordination (where applicable)
  • Thermal derating, voltage/current limitations, and protection behaviors
  • Build and automate tests on HIL rigs (e.g., dSPACE/NI/Vector), and bench setups including inverter + motor + load.
  • Develop automated regression suites for repeated validation:
  • Test scripting (Python/CAPL/MATLAB/Simulink Test or tool-specific frameworks)
  • CI-friendly execution and reporting (where applicable)
  • Maintain test artifacts: scripts, configuration files, datasets, and baselines.

Qualifications

  • Bachelor’s/Master’s in Electrical/Electronics, Embedded Systems, Mechatronics, or related.
  • 3–8+ years experience in system testing/validation of embedded ECUs (automotive/industrial).
  • Strong understanding of Motor control systems and inverter basics (PMSM/BLDC/IM fundamentals helpful)
  • ECU testing lifecycle, test design techniques, and defect management
  • Hands-on experience with at least one:
  • HIL platforms (dSPACE, NI, Vector, etc.)
  • Bench testing with inverter + motor setups and measurement equipment
  • Comfortable with automotive networks & tools:
  • CAN/LIN/Ethernet, UDS diagnostics, CANoe/CANalyzer (or equivalent)
  • Strong analytical and problem-solving skills.
  • Excellent communication and cross-functional collaboration.
  • Ability to manage multiple integration tasks across vehicle programs.
  • Detail-oriented with a focus on safety, performance, and reliability.
  • Passion for electrification and automotive innovation.
  • L&T Company Overview / About Us
  • L&T is a USD 30 billion Indian multinational engaged in EPC Projects, Hi-Tech Manufacturing, and Services, operating across multiple geographies. A strong, customer–focussed approach and the constant quest for top-class quality have enabled L&T to attain and sustain leadership in its major lines of business for eight decades.
  • Given L&T’s capability in strategic electronics and leveraging its foray into semiconductor design and well-established capabilities in L&T Technology Services, the business is expanding its offerings to cover industrial electronic modules, products and systems in critical sectors of Power Electronics, Automotive Electronics, Industrial Robotics & Automation, Communication Platforms and Electronic Systems Design & Manufacturing (ESDM). The focus products under Automotive Electronics are ADAS, Electrification & Connectivity related products.

Skills

System testing/validationMotor control systemsInverter basicsECU testing lifecycleTest design techniquesDefect managementHIL platforms (dSPACE, NI, Vector)Bench testing with inverter + motor setupsAutomotive networks & tools: CAN/LIN/Ethernet, UDS diagnostics, CANoe/CANalyzer
System Test Engineer- MCU at Larsen & Toubro, Coimbatore South, Tamil Nadu, India (On-site | Quark9