Testing Engineer

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

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 for 

Ensuring 

Key Responsibilities

1. 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

2. 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

3. Test Automation & HIL

• Lead automation architecture:
  • Python / LabVIEW / TestStand frameworks
• Develop HIL-based certification scenarios:
  • Grid fault simulations
  • Dynamic grid behavior

4. 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

6. Reliability & Environmental Testing

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

7. Cross-functional Leadership

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

8. 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

Certification Expertise 

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)

Job details

• Business: L&T Precision Engineering & Systems IC
• Location: Bengaluru, Karnataka
• Experience: 8-12 years
• CTC range: ₹17,00,000 – ₹30,00,000 a year
• Skills: Test & Measurement Instrumentation, Power Electronics, Automation, HIL, Standards