Senior Process Engineer

Coherent Corp., named to Forbes' 2026 America's Best Companies, is a global leader in the datacenter and communications industries. Headquartered in Saxonburg, Pennsylvania, USA, and founded in 1971, Coherent operates in over 20 countries worldwide. Since entering Vietnam in 2005, Coherent has expanded to more than 3,200 employees across Ho Chi Minh (VSIP1), Dong Nai (Nhon Trach 1), Hanoi, and Bac Ninh (Yen Phong IP). As part of our global growth strategy and commitment to developing local talent, we aim to create over 8,000 new job opportunities in Vietnam within the next five years through hundreds of millions of dollars in investment projects.
Work Location: VSIP I (Ho Chi Minh)
BASIC FUNCTION OF THE JOB :
Responsible for production output, productivity, quality issue and expense control. Improvement of manufacturing operations in TEC assembly processes. Focus on department projects towards cost savings, quality improvement, and capacity/capability expansion. Provide technical assistance to companywide departments as well as to Front End, System projects. Provide technical expertise in the field of ceramic metallization and material depositions for technical problem solving, process troubleshooting and new part or vendor qualification for supplies and raw materials.
1-Manufacturing process, development and improvement
- Lead and coach teams to achieve daily and monthly production targets through proper guidelines and corrective actions to resolve issues.
- Continuous improvement of manufacturing and support processes with cost reduction and capacity enhancement through a hands-on approach.
- Ensure successful transfer and handover of new processes and products within target timeline and cost.
- Conceive, propose, develop, and implement processes that support II-VI strategic objectives.
- Provide support for QRB submission requirements, qualification builds, and ensure new processes and process changes are released on time.
- Identify yield-impacting processes as potential improvement projects for evaluation.
- Apply and coach teams in the use of Lean, Six Sigma, and SPC for troubleshooting and continuous process improvement.
2- Manufacturing Process Support and Quality control
- Provide coaching and training to the team to solve problems promptly and select the right solutions to ensure continuous production.
- Address problem reports and ISO/customer audit findings immediately.
- Work with Marlow experts, suppliers, and manufacturers to troubleshoot and resolve process, quality, and machine issues.
- Monitor and control changes that affect quality or require QRB approval.
- Lead engineers and technicians in reviewing SPC data, and recommend new, revised, or replacement process control parameters based on quality feedback.
3- Product Development / Realization processes
- Re-search and contact technical support or vendor to develop consumable on site making project or local supplier
- Set up testing or DOE factors to improve process reliability, Cp, Cpk.
- Support Marlow Team and ADC to run prototype and develop new product or process