Process engineers typically work in busy production environments where they are responsible for optimizing processes and ensuring that all of the equipment needed for daily operations is functioning. These engineers should be familiar with the basic mechanics of all machines that they work with and be able to troubleshoot problems as they arise. This question allows candidates to elaborate on past experiences.

What to look for in an answer:

• Familiarity with equipment used
• Level of detail in method for diagnosing problems
• Proposed degree of interaction with production workers

Process engineers have a comprehensive view of plant operations that allows them to identify and fix safety concerns that might not be readily apparent to other workers in the facility. Holding higher-level safety certifications demonstrates an overall interest in maintaining plant security. This question provides insight into the applicant’s ability to identify and resolve safety concerns.

What to look for in an answer:

• Ability for critical thinking and problem-solving
• Willingness to pursue professional certifications
• Examples of success resolving safety issues

Many plants looking to optimize their production use Six Sigma to help identify cost savings opportunities. Process engineers who hold Six Sigma certification have specifically studied the Six Sigma method, and at higher levels of certification, have completed Six Sigma projects that were reviewed by outside experts. A candidate with this certification would definitely have an advantage over other applicants.

What to look for in an answer:

• Level of certification held
• Willingness to pursue higher-level professional training
• Experience applying Six Sigma principles

All process engineers should show familiarity with this basic technical term that refers to a blueprint for equipment. Experienced process engineers will be able to provide multiple instances where they had to refer to a P&ID to complete their work. Answers to this question provide employers with insight into the types of projects the candidate has worked on in the past.

What to look for in an answer:

• A basic level of familiarity with technical terms
• Deeper insight into past experience
• Ability to read and interpret diagrams

Change management systems are used to document updates that are made in plant production processes and when the alterations occurred. Process engineers use these management systems to trace the effects of changes on the final product and identify the root of problems after they arise. Process engineers should be able to describe one or more types of change management systems they previously used.

What to look for in an answer:

• Familiarity with ISO norms of documentation
• Experience in creating documentation to log changes
• Ability to work with a change management database

Process Engineers are responsible for designing processing systems and production equipment to aid the safe and quality production of various products or materials. This question helps interviewers gauge whether a candidate has the skills necessary to compose documents for others to reference when learning how to operate or repair equipment.

A candidate's answer should emphasize:

• Writing competency
• Understanding of written communication within their role
• Previous professional experience

Here is one example of a quality candidate answer: