Materials Testing Analysis Engineer

CoolStar Innovation Technology Limited; Hong Kong; On-site; HKD 420,000 - 540,000; Full time

Job summary

CoolStar Innovation Technology Limited in Hong Kong is seeking a meticulous Materials Testing Engineer to design and execute testing programs for SMA refrigerant materials, covering chemical analyses, microstructure characterization, and mechanical property testing.

You will independently manage the full workflow, conduct failure analyses, develop testing standards, and collaborate with R&D teams to meet project milestones while ensuring data quality and reporting rigor.

Qualifications

• Bachelor's degree or higher in Materials Science, Metallurgy, Mechanical Engineering, Physics, Mechanics, Chemistry, or a related discipline.
• 2+ years of first-hand practical experience in at least two of: material testing scheme design, testing equipment operation, test data analysis, failure analysis, and testing standard formulation.
• Proficient in microstructural characterization techniques (SEM, EBSD, metallography, etc.) and/or mechanical testing equipment; able to independently interpret standards and apply them to novel material systems.
• Strong data processing, statistical analysis, and technical report writing skills.
• Able to manage multiple concurrent testing workstreams under project timeline pressure; proactive in communicating test progress and flagging risks.
• Good communication skills, strong sense of responsibility, and collaborative team spirit.
• Prior experience at a third-party testing laboratory, national standards institute, or well-known manufacturer is a plus.

Responsibilities

• Design and execute material testing programs for SMA refrigerant materials in target application segments (IDC / Cold Chain / NEV), covering chemical composition analysis, microstructural characterization (metallography, SEM, EBSD, XRD, etc.), mechanical property testing (static compression, tensile, dynamic fatigue), and cooling performance testing.
• Independently manage the full testing workflow: sample preparation, equipment operation, data acquisition, result analysis, and test report authoring; ensure data accuracy and reporting rigor.
• Conduct failure analysis on materials and processed components; identify root causes and provide actionable recommendations for materials formulation and process optimization.
• Develop, revise, and maintain internal testing standards and acceptance criteria for SMA materials; ensure alignment with relevant industry and application-specific standards (IDC, automotive, cold chain).
• Continuously characterize and test new SMA material variants as they are developed, providing timely feedback to the materials R&D team to meet project milestones and iteration cycles.
• Perform regular maintenance and calibration of testing equipment to ensure measurement accuracy and long-term stability.
• Collaborate closely with materials scientists, process engineers, and product teams; support materials selection decisions and quality investigations throughout the product development cycle.

Skills

Material testing

Testing equipment operation

Data analysis

Failure analysis

Testing standards formulation

Education

Bachelor's degree or higher in Materials Science / Metallurgy / Mechanical Engineering

Tools

SEM

EBSD

Metallography

XRD

Job description

• Design and execute material testing programs for SMA refrigerant materials in target application segments (IDC / Cold Chain / NEV), covering chemical composition analysis, microstructural characterization (metallography, SEM, EBSD, XRD, etc.), mechanical property testing (static compression, tensile, dynamic fatigue), and cooling performance testing.
• Independently manage the full testing workflow: sample preparation, equipment operation, data acquisition, result analysis, and test report authoring; ensure data accuracy and reporting rigor.
• Conduct failure analysis on materials and processed components; identify root causes and provide actionable recommendations for materials formulation and process optimization.
• Develop, revise, and maintain internal testing standards and acceptance criteria for SMA materials; ensure alignment with relevant industry and application-specific standards (IDC, automotive, cold chain).
• Continuously characterize and test new SMA material variants as they are developed, providing timely feedback to the materials R&D team to meet project milestones and iteration cycles.
• Perform regular maintenance and calibration of testing equipment to ensure measurement accuracy and long-term stability.

Collaborate closely with materials scientists, process engineers, and product teams; support materials selection decisions and quality investigations throughout the product development cycle.

Requirements

• Bachelor's degree or above in Materials Science, Metallurgy, Mechanical Engineering, Physics, Mechanics, Chemistry, or a related discipline.
• 2+ years of first-hand practical experience in at least two of the following: material testing scheme design, testing equipment operation, test data analysis, failure analysis, and testing standard formulation; experience with SMA, nickel-based, titanium-based, or functional alloy systems is a strong plus.
• Proficient in microstructural characterization techniques (SEM, EBSD, metallography, etc.) and/or mechanical testing equipment; able to independently interpret standards and apply them to novel material systems.
• Strong data processing, statistical analysis, and technical report writing skills; detail-oriented with rigorous documentation habits.
• Able to manage multiple concurrent testing workstreams under project timeline pressure; proactive in communicating test progress and flagging risks.
• Good communication skills, strong sense of responsibility, and collaborative team spirit.
• Prior experience at a third-party testing laboratory, national standards institute, or well-known manufacturer is a plus.