Process Engineer

Your Job

Guardian Glass is seeking a Process Engineer to join our Vacuum Coater Operations team in DeWitt, IA. In this role, you will help drive safe, reliable, and efficient manufacturing performance while owning process outcomes related to quality, yield, and uptime.

This position is ideal for an engineer who thrives in a fast-paced manufacturing environment, enjoys solving complex problems, and works effectively across operations, maintenance, quality, and technical teams. While experience in thin films or vacuum coating technology is beneficial, we are primarily seeking a strong process engineer with a manufacturing mindset, analytical capability, and a passion for continuous improvement.

Our Team

Guardian is a principled-based company built on teamwork, innovation, and accountability. Our Coater team works in a highly collaborative environment where strong relationships, open communication, and shared problem-solving are critical to our success.

We are looking for someone who takes ownership of challenges, follows issues through to resolution, and works closely with others to continuously improve our operation. The most successful team members are curious, engaged, and willing to share knowledge, ask questions, and support one another. We value a team culture where people collaborate well, build trust, and leverage each other's strengths to achieve the best results together.

What You Will Do

• Own process performance related to safety, quality, yield, uptime, and waste reduction within coater operations.
• Analyze and optimize process parameters using SPC, statistical methods, and data analysis tools to improve efficiency and maintain product specifications.
• Troubleshoot manufacturing and equipment issues, lead root cause investigations, and implement sustainable corrective actions.
• Develop and maintain standard operating procedures, quality systems, training documentation, and best practices.
• Collaborate with operations, maintenance, quality, and engineering teams to drive continuous improvement initiatives.
• Support a 24/7/365 manufacturing environment through technical problem-solving, asset care support, and process optimization.
• Lead and support process trials, new operating practices, and implementation of manufacturing improvements.
• Train and mentor operators and technicians to improve process understanding and operational performance.
• Support customer quality investigations and implement corrective actions as needed.

What Success Looks Like

• Takes ownership and accountability for operational and process results.
• Uses data-driven problem solving to improve reliability and manufacturing performance.
• Builds strong partnerships across operations, maintenance, and engineering teams.
• Maintains a strong commitment to safety, quality, and continuous improvement.

Who You Are (Basic Qualifications)

• Experience working in a manufacturing, industrial, technical, or operations-focused environment.
• Experience troubleshooting process, equipment, or production-related issues.
• Experience collaborating across operations, maintenance, quality, and engineering teams.
• Demonstrated experience in driving results and continuous improvement.

What Will Put You Ahead

• Bachelor's degree in Mechanical, Chemical, Manufacturing, Materials, Industrial, Electrical, or related Engineering discipline.
• Experience with glass manufacturing, coating operations, vacuum systems, or thin film technologies.
• Experience with SPC, Lean Manufacturing, Six Sigma, or continuous improvement methodologies.
• Experience with automation systems, PLCs, industrial controls, or data visualization tools such as Power BI.

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.

Hiring Philosophy

All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here .

Who We Are

As a Koch company, Guardian Glass is one of the world's largest manufacturers of float, value-added and fabricated glass products and solutions. We produce high-performance glass for architectural, residential, interior, transportation and technical glass applications. You'll find our glass in homes, offices and cars and in some of the world's most iconic projects.

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.

Our Benefits

Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.


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.

Equal Opportunities

Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here , aquí , or tu ).