Testing Engineer

Larsen & Toubro; Bengaluru; On-site; INR 2,500,000 - 4,200,000; Full time

Job summary

Larsen & Toubro in Bengaluru seeks a Test and Validation Engineer for high-power converter systems, owning V&V from strategy to regulatory approvals across India, EU, and US.

You will build MW-scale test benches, develop DVP/PVP, and lead automation with Python/LabVIEW. Strong focus on grid interconnection, LVRT/HVRT, and certification readiness.

Join a cross-functional team, drive traceability from requirements to certification, and interact with labs and regulatory bodies.

Qualifications

• Diploma/B.E./B.Tech in electrical/electronics or related field.
• 6+ years in power electronics validation and grid-connected systems.
• Experience with MW-scale converters / PCS / EV chargers.
• Experience leading certification cycles and liaising with labs.

Responsibilities

• Define end-to-end V&V strategy aligned with certification requirements.
• Develop DVP and PVP and ensure traceability to standards.
• Lead test infrastructure development including MW-scale benches.
• Oversee HIL-based certification scenarios and automation architecture.
• Coordinate with certification bodies and labs for pre- and full‑scale testing.
• Prepare technical files and ensure audit readiness.

Skills

Power electronics validation

MW-scale converters

Certification knowledge

HIL/Automation

Test & Measurement

Python / LabVIEW / MATLAB

Team leadership

Education

Diploma /B.E./B.Tech

Tools

dSPACE

OPAL-RT

Typhoon HIL

LabVIEW

Python

MATLAB

TestStand

Job description

Test and Validation Engineering (Power Converters – up to MW range)

• Develop HIL-based certification scenarios:
• Efficiency & performance: IEC 61683, EN 50530
• Power electronics validation

Role Summary

This role owns the V&V of high‑power converter systems—from early validation strategy to final regulatory approvals across global markets (India, EU, US). Testing Engineer will support ensuring

Key Responsibilities

• Test Strategy & Validation Architecture
• Define end‑to‑end V&V strategy aligned with certification requirements
• Develop Design Verification Plan (DVP) & Product Validation Plan (PVP)
• Ensure traceability from requirements → test cases → certification clauses
• Support Test Infrastructure Development
• Build and manage:
  • MW‑scale test benches
  • Grid simulators & regenerative load setups
  • Battery emulators for PCS validation
• Ensure infrastructure supports pre‑compliance + certification testing
• Test Automation & HIL
• Lead automation architecture:
  • Python / LabVIEW / TestStand frameworks
• Develop HIL‑based certification scenarios:
  • Grid fault simulations
  • Dynamic grid behavior
• Functional & Performance Validation
• Validate:
  • Grid synchronization, PLL, power control
  • LVRT / HVRT / anti‑islanding
  • Protection mechanisms
• Perform efficiency, thermal, and dynamic response validation
  • Pre‑compliance → certification testing → final approval
• Act as single point of contact for certification bodies and agencies

Standards & Compliance Scope

• Lead compliance for:
  • Safety standards: IEC 62109, UL 1741
  • Grid interconnection: IEEE 1547, IEC 61727, IEC 62116
  • EMC/EMI: IEC 61000 series
  • Efficiency & performance: IEC 61683, EN 50530
• Ensure compliance with:
  • Regional grid codes (India, Europe, North America)

Certification Planning & Execution

• Translate standards into:
  • Test cases and validation procedures
  • Design requirements (DFx: DFM, DFS, DFT)
• Plan and execute:
  • Pre‑compliance testing (in‑house)
  • Certification testing (external labs)

External Lab & Agency Management

• Interface with:
  • NABL / TÜV / UL‑certified labs
  • Regulatory bodies and utilities
• Manage:
  • Test scheduling, documentation, issue closure
  • Certification timelines and cost optimization

Documentation & Technical Files

• Prepare and review:
  • Technical Construction File (TCF)
  • Test reports, compliance reports
  • Risk analysis (FMEA, hazard analysis)
• Ensure audit readiness

Gap Analysis & Risk Mitigation

• Conduct:
  • Standard compliance gap analysis early in design
• Drive:
  • Design changes to ensure first‑pass certification success

Grid Code Validation (Critical for MW Systems)

• Validate compliance with:
  • LVRT/HVRT curves
  • Reactive power support
  • Frequency ride‑through
• Coordinate with utilities for grid compliance testing

Reliability & Environmental Testing

• Execute:
  • HALT / HASS
  • Thermal cycling, vibration, humidity
• Support certification‑related environmental requirements

Cross‑functional Leadership

• Work closely with:
  • Design, Controls, Firmware teams
• Influence design for:
  • Testability
  • Certifiability (this is key at senior level)

Data Analytics & Reporting

• Automate:
  • Certification reports
  • Validation dashboards
• Track:
  • Certification readiness metrics

Required Qualifications

• Education
  • Diploma /B.E./B.Tech
• Experience
  • 6 + years in:
    • Power electronics validation
    • Certification of grid‑connected systems
  • Proven experience with MW‑scale converters / PCS / inverters / EV chargers

Technical Skills

• Hands‑on Experience With:
  • IEC / UL / IEEE standards
  • Grid compliance testing
• Experience in:
  • Taking products through full certification cycles
• Power Electronics
  • Inverters, rectifiers, DC‑DC converters
  • Topologies:
    • NPC, Vienna, T‑type, LLC, DAB
• Test & Measurement
  • Power analyzers, oscilloscopes, EMI receivers
  • High‑voltage/high‑power testing
• Automation & HIL
  • Python, LabVIEW, MATLAB
  • dSPACE / OPAL‑RT / Typhoon HIL
• Leadership & Behavioural Skills
  • Strong ownership of certification deliverables
  • Ability to challenge design for compliance readiness
  • Stakeholder management (labs, auditors, internal teams)

Key KPIs

• First‑pass certification success rate
• Certification cycle time
• Number of certification failures/retests
• Validation coverage
• Field compliance issues

Preferred Experience

• Solar central inverters / PCS / BESS (1500V systems)
• EV fast charging systems
• Global certification exposure (multi‑region product launches)

Nice‑to‑Have

• Experience working with:
  • TÜV / UL / Intertek / CSA labs
• Knowledge of:
  • Cybersecurity standards for grid‑connected systems (IEC 62443)