-Design and develop optomechanical products or systems.-Design optical and mechanical products with optical, mechanical, and manufacturing considerations.-Analysis and study of the customers' light system and design for higher efficiency system. -Design and build prototypes(3D printing, Vacuum Casting, CNC machining, and so on), and create detailed drawings and instructions for production.-Generate technical documentation (Models, CAD drawings, Simulations, BOMs, etc.) relevant to optical and mechanical design.-Design parts with various manufacturing methods for mass production such as PIM, CM, casting, MIM, and so on. -Research and study new technology and apply to new product design.-Work closely with management on products and customer requirements.-Prepare product technical requirements and specifications.-Interact with other engineering groups, as well as cross-functional teams such as Manufacturing, Quality Control, and Supply Chain.-Work on projects independently and with a multi-disciplined team of scientists, engineers,and technicians.-Provide technical support to manufacturing, sales, and marketing.

-To analyze defect display(semiconductor) products, defect data, quality trends, customer's claim, any other quality issue. -Provide quality solution to customers by analyzing LCD/LCM/TV manufacturing production lines. -Based on the defect analysis results, issue and share a FAR(Failure Analysis Report) to customer and work to improve product quality in customer's manufacturing facility. -Conduct On-Site verification, quality meeting, and process line audit during the periodic on-site visit to the customer's manufacturing site as a part of the quality monitoring. -Train/educate to technicians about product's technical information, method of handling the product, technical verification of the defective product, method to use of technical verification tool/equipment, work scope of sorting/rework, and Etc.

Development new/modified industrial refrigerator and freezer for restaurant, retail shop, and supermarket-Conduct whole development process such as concept, plan schedule, 2D/3D modeling, simulation on 3D modeling, fabrication prototype, testing, release to mass production.-Development refrigerator/freezer parts−Design/drawing aluminum extrusion for refrigerator body frames, glass door, gasket holder, price rail, and so on.−Design, estimate cost, production plan for aluminum extrusion considering tooling technics and parts quality−Design PVC or ABS extrusion for gasket, frames, glass holders and so on.−Make blueprint and release technical drawing/data to local vendor or international vendors.−Design/fabrication/prototype sheet metal parts with NCT, Laser cutting, Press break, Stamping, Panel bender, welding, and fasten process and provide flat pattern/drawings/assembly specification to manufacturing facility.−Design additional sheet metal process for insulation foaming injection." −Research components such as compressor(1/6HP to 2HP)/motor(1W to 15W)/harness/evaporator/condenser/etc−Test and compare samples in cost, quality, productivity wise, and negotiate with vendors if necessary.Safety/sanitation/energy/performance test −Calculate refrigerant pressure, temperature, amount, etc and do test according to UL/DOE/NSF test standardsRefrigerant replacement project(R-134a/R-401A to R-290) for government requirement −Design/Calculate/Test cooling system for new refrigerant with extra safety concern(R-290 is flammable)−Manufacturing equipment replacement such as explosion proof system, ventilation system, gas detection system, etc−Research/study/apply machines for replacement for better performance/labor cost down/increase product quantity−Revise 3D models and engineering drawings for existing products for cost down/improving quality/manufacturability/serviceability/satisfaction for customer requirements.−Create and manage ERP/BOM system.

Designed and developed optical parts and LED applications to meet and exceed business as well as customer needs according to safety, energy, performance, and the other requirements. Design aluminum extrusion for LED fixture and heat sink and optical extrusion for LED diffuser. Fabricated prototype products(in machine shop or 3D printing) and performed mechanical, electrical, thermal, and performance test. Evaluated new components and technologies to analyze functionality for all new product development. Analyzed product cost and prepared schedule plans for effective implementation of projects. Coordinated with manufacturers, supplier, buyers, and sales representatives for new product development.

ㆍAnalyzed and checked safety and effectiveness from clients’ design conceptㆍDeveloped, created, and assembled functional 2D and 3D models from the conceptsㆍAnalyzed the models with simulation and FEA

ㆍAnalyzed heating and cooling system in the military baseㆍMaintained and repair the heating and cooling machines ㆍInstalled or dismantled the heating and cooling machinesㆍManaged the machines’ partsㆍTaught how to maintain and operate heating machine to soldiersㆍHVAC system and Pipe line design with AutoCAD

ㆍAnalyzed and classified defective parts of engine parts (Common Rail System)ㆍPut the information about the defective parts in database