Kasidet Numfug

Assistant Test Engineer, R&D @ TeraHop

About

I’m a Mechanical Engineer working in optical transceiver manufacturing, specializing in test operations, failure analysis, and process optimization. My work sits at the intersection of engineering, automation, and production—where product performance meets scalability. I focus on solving one core problem: how to make manufacturing systems more reliable, efficient, and data-driven. Whether it’s debugging test failures, improving yield, or stabilizing test processes, I translate technical issues into actionable improvements that directly impact product quality and output.Outside of work, I’m passionate about health, fitness, and longevity—applying the same discipline and continuous improvement mindset from engineering into everyday life.

Country

Thailand

City

Bangkok City

Industry

Industrial Automation

Skill

Cross-functional Collaborations, Optical Module Debugging, Data-Driven Troubleshooting, Keysight DCA-X Oscilloscopes, High-Speed Electrical & Optical Test Setups, Optical Transceiver Testing (1.6T OSFP224), High-Speed Signal Integrity & Characterization, Electronics, Research and Development (R&D), Test Engineering, Failure Analysis, Data Analysis, Troubleshooting, Analytical Skills, Mechanical Engineering, Programmable Logic Controller (PLC), 3D Computer Aided Design (3D CAD), CAD/CAM, CNC Manufacturing, Product Design

Experience

Assistant Test Engineer, R&D

TeraHop

2025-4 - Present · 1 yr 6 mos

Sara Buri, Thailand

I support R&D and manufacturing test operations for high-speed optical transceiver modules, enabling reliable, high-volume production while improving yield, test stability, and process efficiency. • Optimized first-pass yield across production, control runs, and experimental work orders by conducting root cause failure analysis and implementing process improvements in optical module testing • Supported development and production of advanced 1.6T OSFP224 optical modules (FR4 Gen2 silicon photonics, ZFR8, and EML-based designs) by collaborating with R&D and engineering teams to ensure manufacturability and performance • Diagnosed test failures and improved product quality by performing system-level debugging and isolating equipment versus product-related issues using production test data • Enhanced test accuracy and validation capability by utilizing high-speed optical instrumentation, including Keysight DCA-X Oscilloscope, BERT, OSA, PSY, and VOA for signal integrity and optical performance analysis • Improved test system reliability and production efficiency by supporting automated test operations, equipment calibration, and process optimization in a high-volume manufacturing environment

Intern

The Siam Gypsum Industry

2023-6 - 2023-7 · 2 mos

Sara Buri, Thailand

Participated in Elephant D Zine Services including Tailor-made Product, Product Design, Packaging & Loading, Illustration Service, Installation Advice, and On-Site Inspection Service

Education

Thammasat University

Mechanical Engineering

2019 - 2024 · 5 yrs

KU Leuven - Group T Leuven Campus

Electromechanical Engineering

2021 - 2023 · 2 yrs

From 2021 to 2023, I studied Electro-Mechanical Engineering at KU Leuven University, Campus Group T, where I developed a strong foundation in industrial automation and engineering principles. During this time, I gained valuable skills in PLC programming, SQL, and Object-Oriented Programming (OOP), enhancing my ability to design and implement efficient automation systems. This experience has equipped me with the technical expertise and problem-solving skills necessary to thrive in international engineering environments.