Test Engineering Expert

FRANKLINWH SG PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

FRANKLINWH SG PTE. LTD. is seeking a Test Engineering Expert to establish the system test and validation framework for complete energy storage systems, including PCS, BMS, and EMS.

You will own test coverage, defect detection, and production-quality support in a fast-paced, cross-functional environment. The role requires 10+ years in power products testing, familiarity with LLC and inverter topologies, and hands-on experience in pre-compliance and certification activities to ensure grid

Qualifications

• Bachelor's degree or above in electrical engineering, new energy, automation, or related field.
• Familiarity with energy storage circuit topologies (LLC, three-level inverters).
• Knowledge of power circuit topologies and mechanical design for fault diagnosis.
• Knowledge of test principles for complete residential energy storage systems, BMS, PCS, EMS.
• Familiarity with international safety and grid-connection test standards; certification testing preferred.
• Proficiency with energy storage test equipment; ability to develop test plans and analyze data.
• Strong issue-closure skills; able to prepare testing and certification documents in English.
• Experience in test automation, test-data analysis, and test-case management.
• Familiarity with lab safety, equipment calibration, and traceability requirements.

Responsibilities

• Establish a system-level test framework for complete residential energy storage systems, PCS, BMS, and EMS.
• Lead new-product prototype testing, release regression testing, and mass-production reliability sampling.
• Develop pre-compliance test plans based on applicable international energy storage certification standards.
• Collect and analyze test data, isolate defects, issue reports and corrective actions.
• Continuously improve test processes, standards, and platforms to increase coverage and efficiency.
• Monitor changes in industry test standards and support validation of new products.
• Plan test laboratories, benches, and automation capabilities with safe-operating procedures.
• Maintain traceability from requirements to test cases and results.
• Lead root-cause analysis and coordinate corrective action across teams.

Skills

Electrical engineering

New energy

Automation

Test engineering

Energy storage

Power electronics

IPD process

Test automation

Data analysis

Education

Bachelor's degree or above in electrical engineering, new energy, automation, test engineering, or related

Job description

Test Engineering Expert

Employment type: Full-time

Vacancies: 1

About the Role

This role establishes the system test and validation framework covering complete systems, PCS, BMS, and EMS and is accountable for test coverage, defect detection, pre-certification validation, and production-quality support.

Key Responsibilities

1.Establish a system-level test framework for complete residential energy storage systems, PCS, BMS, and EMS. Develop test plans and cases covering functionality, performance, reliability, product safety, and grid compatibility.

2.Lead new-product prototype testing, release regression testing, and mass-production reliability sampling. Validate grid-connected and off-grid functions, power performance, charging and discharging, system interaction, and safety protection.

3.Develop pre-compliance test plans based on applicable international energy storage certification standards, and manage certification testing and corrective-action closure.

4.Collect and analyze test data, isolate hardware, software, mechanical, and algorithm defects, issue test reports and corrective recommendations, and drive issue closure.

5.Continuously improve test processes, standards, and platforms to increase coverage and efficiency and protect mass-production quality and compliance.

6.Monitor changes in industry test standards, update test plans, and support technical validation of new products.

7.Plan test laboratories, test benches, instruments, and automation capabilities and establish equipment calibration, maintenance, and safe-operating requirements.

8.Maintain traceability from requirements to test cases, defects, and corrective results, and regularly assess test coverage and residual risk.

9.Lead root-cause analysis and reproduction testing for major issues and coordinate corrective action across research and development, quality, manufacturing, and suppliers.

Requirements

10.Bachelor's degree or above in electrical engineering, new energy, automation, test engineering, or a related discipline. At least 10 years of development or testing experience in power products, including photovoltaic inverters, residential energy storage, or UPS. Familiarity with the IPD process is required; end-to-end system testing experience for energy storage products is preferred.

11.Familiarity with energy storage circuit topologies such as LLC and three-level inverter topologies, with working knowledge of power distribution and mechanical design.

12.Knowledge of power circuit topologies such as LLC converters and three-level inverters, together with relevant power distribution and mechanical design knowledge to support multidisciplinary fault diagnosis.

13.Knowledge of test principles and methods for complete residential energy storage systems, BMS, PCS, and EMS, with expertise in functional, performance, reliability, and product safety testing.

14.Familiarity with applicable international safety and grid-connection test standards for energy storage products. Certification testing experience is preferred.

15.Proficiency with energy storage test equipment and the ability to independently develop test plans, isolate faults, and analyze data.

16.Careful and methodical, with strong issue-closure skills. Able to prepare testing and certification documents in English and communicate with international certification bodies and cross-border teams.

17.Experience in test automation, test-data analysis, and test-case management.

18.Familiarity with laboratory safety, equipment calibration, and test-result traceability requirements.