Bring up & maintain robust wafer-level optical testing in a high-tech manufacturing environment

Join our team and play a key role in enabling high-performance optical testing in a cutting-edge production setup in Malaysia. As a Test and Maintenance Engineer, you will ensure stable, efficient, and high-quality wafer-level optical testing, working at the intersection of engineering, production, and innovation.

You will collaborate closely with cross-functional teams including Production, Process, NPI, and external vendors, as well as colleagues in Switzerland who developed the testing processes and technologies.

You will be part of an ambitious company where we win together. Team spirit and mutual success are key components in our everyday work culture.

Tasks and responsibilities

Wafer-Level Optical Tester Bring-Up and Qualification

Drive the ramp-up and validation of wafer-level optical testers in Malaysia, including machine qualification and process buy-off.

Deep Understanding of Test Systems and Methodologies

Develop and maintain a strong technical understanding of tester operations, optics, calibration, and alignment processes.

Data Analysis and Data-Driven Problem Solving

Monitor test results and apply statistical tools (e.g., SPC, GR&R, Lean Six Sigma) to ensure performance, stability, and quality.

Equipment Maintenance and Reliability

Perform preventive and corrective maintenance, manage spare parts, and troubleshoot hardware and software issues to minimize downtime.

Test Process Optimization

Continuously improve test cycle time, stability, and efficiency through structured problem-solving and process optimization initiatives.

Skills, experiences and qualifications we are looking for

• Bachelor’s or master’s degree in Optical Engineering, Semiconductor Engineering, Physics, or a related field
• Minimum 5 years of experience in wafer-level testing and optical measurement techniques
• Strong understanding of test methodologies and manufacturing environments
• Solid troubleshooting skills across electrical, mechanical, and optical systems
• Experience with statistical analysis tools such as JMP, Python, or Minitab
• Knowledge of SPC, GR&R, Lean Manufacturing, and Six Sigma principles
• Ability to work in a fast-paced, high-volume production environment with a strong sense of ownership
• Fluent in English (written and spoken) with strong communication skills
• Experience working in cross-site or global teams
• Additional language skills (e.g., Mandarin or Malay)

Questions You are welcome to reach out to hiring manager: Tan Cheek Hau, Process and Test Staff Engineer, cheekhau@nilt.com

Interested?

Please forward your CV and application letter incl. answers to the 2 questions below, no later than 24 July 2026. We look forward to hearing from you.

1. Key experience #1

Describe your experience with wafer-level testing processes, including any development, production support, and key milestones or achievements.

2. Key experience #2

Describe your strengths and weaknesses, and share a challenging situation you faced in your career and how you handled it.

About NIL Technology

NIL Technology (NILT), founded in 2006, is an optical solutions company designing, developing, and manufacturing optical elements and components using high-precision nanoscale features. NILT creates competitive advantages with flat optics (meta-optics) in optical applications for 3D sensing, consumer electronics, machine vision, autonomous vehicles, telecommunication, and AR. With its background in mastering for nanoimprint, the company produces masters and offers nano-foundry services. NILT is based in Denmark and has offices in Switzerland, Sweden, US, and a manufacturing in Malaysia. Visit us at www.nilt.com. NILT is owned by Radiant Opto-Electronics Corporation (www.radiant.com.tw).