Process Engineer, Coating
- Coherent Corp.
- Biên Hòa, Vietnam
- VND 300,000,000 – VND 480,000,000
- Manage and optimize Coating / Thin Film manufacturing processes to achieve yield, quality, cost, and productivity targets.
- Provide hands-on engineering support and troubleshooting for thin-film coating equipment and production processes.
- Analyze process performance using SPC, P-FMEA, statistical methods, and root cause analysis to reduce variation and improve process capability.
- Develop, maintain, and improve process documentation including WI, WPS, BOM, Routing, and P-FMEA.
- Lead process qualification and production trials for new products, materials, tooling, consumables, equipment, and process changes.
- Drive continuous improvement projects focusing on yield improvement, cycle-time reduction, cost saving, and process capability.
- Develop and qualify alternative materials, tooling, consumables, and equipment to improve cost and supply continuity.
- Support NPI and new process development, including process trials, qualification, and production ramp-up.
- Design and improve simple jigs, fixtures, and tooling to support manufacturing processes.
- Train Operators and Technicians on process requirements, equipment operation, and manufacturing procedures.
- Partner with Production, Quality, Product Engineering, Supply Chain, and Sales to resolve technical and manufacturing issues.
- Support investigation and corrective actions for customer complaints related to engineering/process issues.
Job Requirement:
- Bachelor's Degree in Chemical Engineering, Optical Engineering, Mechanical Engineering, Industrial Engineering, or related engineering/science disciplines.
- Minimum 2 years of experience in Manufacturing or Process Engineering, preferably within optics, precision manufacturing, or other highly technical manufacturing environments.
- Experience or technical knowledge in Thin Film / Optical Coating processes is highly preferred.
- Strong hands-on experience in process troubleshooting, root cause analysis, and manufacturing process improvement.
- Knowledge of SPC, P-FMEA, process capability, and statistical analysis.
- Experience with process qualification, DOE/trials, yield improvement, and cost reduction is preferred.
- Experience designing basic jigs, fixtures, and manufacturing tooling.
- Knowledge of AutoCAD and/or SolidWorks.
- Good analytical and problem-solving capabilities with a hands-on manufacturing mindset.
- Good English communication skills; Mandarin is an advantage.
Working Condition:
- Working location: 2A – 1.F1, Tran Phu Street, Nhon Trach I Industrial Park, Nhon Trach Ward, Dong Nai City, Vietnam
- Working hours: 40 hours/ week (Mon-Fri)
- Shuttle buses are provided
Coherent is a global leader in lasers, engineered materials and networking components. We are a vertically integrated manufacturing company that develops innovative products for diversified applications in the industrial, optical communications, military, life sciences, semiconductor equipment, and consumer markets. Coherent provides a comprehensive career development platform within an environment that challenges employees to perform at their best, while rewarding excellence and hard-work through a competitive compensation program. It's an exciting opportunity to work for a company that offers stability, longevity and growth. Come Join Us!
Note to recruiters and employment agencies: We will not pay for unsolicited resumes from recruiters and employment agencies unless we have a signed agreement and have required assistance, in writing, for a specific opening.
Skills
- Process Engineering
- Thin Film Coating
- Statistical Process Control (SPC)
- Root Cause Analysis
- FMEA
- New Product Introduction (NPI)
- Lean Manufacturing






