What is a QA Engineer at AAK?

At AAK, our story spans over 150 years as the world’s leading specialist producer of plant-based oils. The oils we produce are foundational to the food industry—making chocolate creamier and croissants crunchier—while also serving diverse industrial sectors. Within this high-scale manufacturing environment, the QA Engineer (operating internally as an Automation Engineer) is the linchpin of our operational quality, safety, and efficiency. You are directly responsible for the automated systems that ensure every drop of oil meets our rigorous standards.

In this role at our Richmond, CA facility, you are not just testing software; you are designing, implementing, and commissioning the physical and digital control systems that run the plant. By developing functional specifications for capital projects and programming complex PLC logic, you ensure that our manufacturing processes are executed flawlessly. Your work directly impacts product quality, operational safety, and the company's bottom line.

This position offers a unique blend of hands-on technical work and strategic project management. You will bridge the gap between Information Technology (IT) and Operational Technology (OT), manage key system integrator relationships, and drive our safety goal of zero accidents. If you thrive in a dynamic, on-site manufacturing environment where your automated solutions make "Better Happen," this role is built for you.

Common Interview Questions

Getting Ready for Your Interviews

Preparing for the QA / Automation Engineer interview at AAK requires a strategic approach. Your interviewers will look for a blend of deep technical expertise, unwavering commitment to safety, and the ability to manage complex projects.

Here are the key evaluation criteria you should focus on:

Industrial Automation Expertise – You must demonstrate profound knowledge of PLC programming and SCADA systems. Interviewers will evaluate your hands-on experience with Emerson, Allen Bradley, Ignition, and Wonderware, looking for your ability to design, troubleshoot, and upgrade control systems.

Safety and Compliance Leadership – Safety is a core value at AAK. You will be assessed on your ability to lead by example, adhere strictly to SOPs, and proactively identify and remedy high-risk safety issues during both daily operations and major capital projects.

Project and Vendor Management – Because you will lead capital projects, interviewers want to see how you scope, estimate, and execute automation initiatives. You must show that you can effectively manage third-party system integrators to deliver projects efficiently and on budget.

IT/OT Integration and Problem Solving – Modern manufacturing requires secure, integrated systems. You will be evaluated on your ability to collaborate with IT teams to protect control systems from external threats and your structural approach to troubleshooting complex electromechanical and software issues.

Interview Process Overview

The interview process for the QA Engineer role at AAK is rigorous and highly focused on practical, real-world manufacturing scenarios. You can expect the process to begin with an initial recruiter screen focusing on your background, experience level, and alignment with the on-site requirements in Richmond, CA. This is followed by a technical screening with an engineering manager, where you will discuss your specific experience with PLCs, SCADA systems, and panel design.

As you progress to the onsite or virtual panel stages, the interviews will become highly cross-functional. You will meet with stakeholders from operations, maintenance, and IT. During these rounds, expect deep dives into past capital projects you have managed, specific troubleshooting scenarios involving motor controls and VFDs, and your approach to maintaining stringent safety standards during equipment commissioning. The process is designed to ensure you possess both the technical depth to write ladder logic and the soft skills to train operators and manage vendors.

This timeline illustrates the typical progression from the initial technical screens through to the final cross-functional panel interviews. Use this visual to pace your preparation, ensuring you are ready to discuss both high-level project management strategies and granular technical troubleshooting details by the time you reach the final rounds.

Deep Dive into Evaluation Areas

To succeed in your interviews, you need to master several core competencies. AAK interviewers will probe deeply into your technical background and your operational philosophy.

PLC Programming and SCADA Mastery

As the backbone of our automated quality control, your proficiency with industry-standard hardware and software is non-negotiable. Interviewers will test your ability to write, audit, and troubleshoot logic that controls critical plant infrastructure. Strong candidates will confidently discuss architecture design, revision control, and system migrations.

Be ready to go over:

• Allen Bradley and Emerson PLCs – Writing ladder logic, troubleshooting faults, and developing functional specifications from scratch.
• SCADA Systems – Designing and maintaining interfaces using Cimplicity, Ignition, and Wonderware.
• Panel Design and Instrumentation – Creating panel P&IDs, specifying temperature, pressure, and flow instruments, and utilizing AutoCAD.
• Motor Controls – Installing and troubleshooting VFDs and Soft-Starts.

Example questions or scenarios:

• "Walk me through a time you had to migrate an outdated PLC system to a modern Allen Bradley or Emerson platform. What challenges did you face?"
• "How do you approach designing a control panel for a new capital project from the functional specification stage to final P&ID documentation?"
• "Describe a complex troubleshooting scenario involving a VFD fault. How did you isolate the root cause?"