Position: Process Engineer – Optical Testing
Location: Thang Long II IP, Hung Yen (Daily Bus from Hanoi and Hai Duong)
Who We Are
MOLEX, a brand under KOCH Industries with its headquarters in LISLE (USA), is one of the world's leading interconnector manufacturers.
Molex creates connections for life by providing technologies that transform the future and improve lives. Since 2007, Molex Vietnam has operated its first factory in Thang Long I IP.
We are now expanding with a new high-tech facility in Thang Long II IP, Hung Yen, backed by a $145 million investment and spanning
100,000 m². This site will manufacture advanced products include high-speed connectors, cables, and optical devices.
About The Role
We are seeking a
Process Engineer – Optical Testing to support opto-electronic testing in the manufacturing of optical fiber cables and device assemblies. This role involves integrating custom-designed circuit boards and mechanical fixtures with advanced test equipment, analyzing test data using statistical tools, and driving root cause analysis for rejected parts.
Key Responsibilities
- Develop, integrate, and upgrade software for optical fiber and opto-electronic test systems across global manufacturing sites.
- Perform electrical testing, analyze data, identify critical quality aspects, and implement corrective actions.
- Collaborate with cross-functional teams to enhance automated production test systems globally.
- Design and maintain test systems, including mechanical fixtures, PCB design, hardware integration, and documentation.
- Create and execute test plans, conduct reviews, and validate system performance.
- Prepare product and test system documentation, specifications, and work instructions.
- Ensure compliance with 5S, Kaizen, EHS, RBA, and company asset protection standards.
- Support Molex TQM and Quality/Environmental Management Systems.
- Perform other duties as assigned.
Qualifications
Education:
- Required: B.S. in Electrical, Mechanical, Systems, Computer Engineering, or related field
- Preferred: M.S. in Engineering
Experience:
- Required: Minimum 2 years in test and measurement
- Preferred: 2–5 years in engineering with expertise in high-speed testing and design
Skills & Abilities
Required:
- Proficiency in C/C++, VB/C#, .NET framework, and Python
- Strong problem-solving and analytical skills
- Excellent communication skills for global collaboration
- Proficiency in MS Office tools
Preferred:
- Experience with RF/microwave test equipment and transmission line theory
- Knowledge of relational databases (SQL/MySQL)
- PCB design and electromagnetic simulation tools
- Lean/Six Sigma certification (Yellow/Green Belt)
Why Join Us
- Modern American-standard work environment
- PBM culture that fosters collaboration and personal growth
- Full salary during probation
- 24/7 occupational safety insurance from day one
- Premium health insurance after just 2 months
- Most Saturdays off
- Shuttle service for convenient commuting
- Global career development via KOCH's Talent Exchange Program
- Annual Summer Trip
- Total compensation based on contribution, including: Base salary, Allowances,
Overtime, 13th-month salary, Performance & spot bonuses, Service award
At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.
At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.
Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results. 
