Tessenderlo Kerley, Inc. is a company of diverse businesses unified by shared values and vision. We serve the agriculture, mining, industrial and water reclamation markets with a broad range of products and technologies, worldwide. Serving these customers well is a passion and a commitment-one that the people of Tessenderlo Kerley find rewarding, empowering and meaningful.
If you want the work you do to make a positive impact on the world in which we live, and work alongside innovative, quality-focused people of vision, Tessenderlo Kerley is the right place for you.
Are you a hands-on Process Engineer who thrives on solving complex plant problems, optimizing processes, and working both in the office and in the field? If you enjoy variety, ownership, and supporting different production sites, this Process Engineer II role on our Technical Services team could be a great fit.
Based at our Phoenix, AZ corporate office (with 30-40% travel), you’ll support several U.S. plants, improve reliability and safety, and play a key role in small capital projects.
While this role is based out of our Phoenix, AZ corporate office (preferred for collaboration with our engineering team), we are open to considering candidates who reside within a reasonable driving distance of one of our U.S. plant locations.
Eligible locations include: Fresno, CA; Defiance, OH; Dubuque, IA; Eufaula, AL; Billings, MT; and our Phoenix, AZ (Corporate Headquarters).
Why Join Us?
True Chemical Engineering – PFDs, P&IDs, Mass & Energy Balances, PSV sizing, process design, equipment specs
Hands-On Field Work – Spend real time in operating units solving process issues - not just behind a desk
Influence Multiple Sites – Support 2-3 plants and make a visible impact on their operations and reliability
️ Safety-First Culture – Join a company deeply committed to PSM, MOCs and HAZOP excellence
Professional Growth – Learn Tessenderlo Kerley chemistries, Aspen modeling tools, API codes and more from a seasoned team
What You’ll Do
✅ Provide day-to-day process engineering support for different production units.
✅ Perform key engineering calculations: line sizing, pump sizing, PSV sizing (API 520/521).
✅ Develop and update PFDs, P&IDs, and Mass & Energy Balances.
✅ Create equipment and control valve specifications.
✅ Support PSM activities including MOCs, HAZOPs and compliance reviews.
✅ Troubleshoot plant issues during site visits; support turnarounds and startups.
✅ Collaborate with Project Services on small capital projects.
What You’ll Bring
✔ BS in Chemical Engineering preferred (Mechanical/related disciplines accepted with strong process background).
✔ Hands-on field experience in a chemical plant, refinery or similar process industry.
✔ 3-5 years of process engineering experience supporting manufacturing operations.
✔ Comfortable working in operating units - climbing stairs/ladders, troubleshooting equipment and engaging with operators.
✔ Strong understanding of P&IDs, PFDs, process calculations and equipment specs.
✔ Ability to travel 30-40% for site support.
✔ Exposure to PSM, MOC, HAZOP and API/ASME codes (a plus).
✔ Organized, proactive and able to manage multiple priorities in a fast-moving environment.
If you’re a Process Engineer who enjoys meaningful field work, technical depth and influencing multiple sites, we’d love to hear from you!
Why join Tessenderlo Kerley:
Benefits & Rewards:
Tessenderlo Kerley is part of Tessenderlo Group, an industrial group that focuses on agriculture, valorizing bio-residuals, machinery, mechanical engineering, electronics, energy, and providing industrial solutions with a focus on water. With its headquarters in Belgium, the group is active in over 100 countries, and it has a global team of more than 7,000 employees. Its belief that “Every Molecule Counts” is at the heart of the strategy of the group: Tessenderlo Group continually strives to valorize its products and processes to the maximum and to add value to everything it does. For more information about Tessenderlo Group, its people, and its brands, please visit
Tessenderlo Kerley, Inc. provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.
This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
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