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Process Engineer Jobs in St Louis, MO (NOW HIRING)

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Senior Process Engineer - Liquid Systems

Saint Louis, MO · On-site

$101K - $130K/yr

We are seeking a Senior Process Engineer with deep expertise in liquid processing systems within the food and beverage industry . This role will lead the design and execution of process systems for ...

Vijon, Inc.

ENGINEER PROCESS

Saint Louis, MO · On-site

Works closely with Controls engineers for design of new or improved control process. Interacts with other departments such as quality, PD, Maintenance, and Manufacturing. Provides support and ...

Vi-Jon

ENGINEER PROCESS

Saint Louis, MO

Works closely with Controls engineers for design of new or improved control process. Interacts with other departments such as quality, PD, Maintenance, and Manufacturing. Provides support and ...

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Showing results 41-60

All JobsProcess Engineer JobsProcess Engineer Jobs in St. Louis, MO

Process Engineer information

See St Louis, MO salary details

$48.1K

$89.5K

$138.5K

How much do process engineer jobs pay per year?

As of Aug 9, 2026, the average yearly pay for process engineer in St. Louis, MO is $89,462.00, according to ZipRecruiter salary data. Most workers in this role earn between $72,400.00 and $100,100.00 per year, depending on experience, location, and employer.

What is the work of a process engineer?

A process engineer designs, develops, and optimizes manufacturing processes to improve efficiency, quality, and safety. They analyze production workflows, troubleshoot issues, and implement improvements using tools like process flow diagrams and statistical analysis. Strong problem-solving skills and knowledge of industry standards are essential for this role.

What are some common challenges process engineers face when implementing process improvements, and how can they overcome them?

Process Engineers often encounter challenges such as resistance to change from team members, integrating new technologies with existing systems, and ensuring process changes meet regulatory standards. Overcoming these obstacles typically involves clear communication, involving stakeholders early in the process, thorough documentation, and piloting changes before full-scale implementation. Building strong cross-functional relationships and continuously gathering feedback also help ensure that improvements are effective and sustainable.

What is a process engineer?

Process Engineers are professionals who design, implement, and optimize industrial processes to improve efficiency, quality, and safety in manufacturing or production environments. They analyze workflows, troubleshoot process issues, and develop solutions to enhance productivity and reduce costs. Process Engineers often work in industries such as chemicals, pharmaceuticals, food and beverage, and energy, ensuring processes are compliant with environmental and safety regulations. Their work is vital for maintaining smooth operations and achieving organizational goals.

What jobs do process engineers do?

Process engineers design, develop, and optimize manufacturing processes to improve efficiency, safety, and quality. They analyze production data, troubleshoot issues, and implement process improvements using tools like process flow diagrams and statistical analysis. Their work often involves collaboration with production teams and requires knowledge of engineering principles and industry standards.

What are the key skills and qualifications needed to thrive as a process engineer, and why are they important?

To thrive as a Process Engineer, you need a solid background in chemical, mechanical, or industrial engineering, often supported by a relevant bachelor's degree and understanding of process optimization principles. Familiarity with process simulation software (such as Aspen Plus or AutoCAD), Six Sigma methodologies, and quality management systems is typically required. Strong analytical thinking, problem-solving abilities, and effective communication skills set candidates apart in this role. These skills and qualifications are essential to improve efficiency, ensure safety, and drive continuous improvement in industrial and manufacturing processes.

What is the difference between Process Engineer vs Manufacturing Engineer?

AspectProcess EngineerManufacturing Engineer
CredentialsBachelor's in Engineering, certifications like Six SigmaBachelor's in Engineering, certifications like Lean Manufacturing
Work EnvironmentDesigning and optimizing processes, R&D settingsOverseeing production lines, factory floors
Industry UsageManufacturing, chemical, aerospaceAutomotive, electronics, consumer goods

Process Engineers focus on designing and improving manufacturing processes, often working in R&D or engineering departments. Manufacturing Engineers concentrate on implementing and managing production on the factory floor. Both roles require similar technical skills and certifications but differ mainly in their scope and work environment.

More about Process Engineer jobs
What are the most commonly searched types of Process Engineer jobs in St. Louis, MO? The most popular types of Process Engineer jobs in St. Louis, MO are:
What are popular job titles related to Process Engineer jobs in St. Louis, MO? For Process Engineer jobs in St. Louis, MO, the most frequently searched job titles are:
What job categories do people searching Process Engineer jobs in St. Louis, MO look for? The top searched job categories for Process Engineer jobs in St. Louis, MO are:
What cities near St. Louis, MO are hiring for Process Engineer jobs? Cities near St. Louis, MO with the most Process Engineer job openings:
Process Engineer jobs near you
Infographic showing various Process Engineer job openings in St. Louis, MO as of August 2026, with employment types broken down into 82% Full Time, 6% Part Time, and 12% Contract. Highlights an 97% In-person, and 3% Remote job distribution, with an average salary of $89,462 per year, or $43 per hour.

Process Engineer - Finishing Mill Technology

United States Steel Corporation

Granite City, IL • On-site

$90K - $105K/yr

Full-time

Posted 19 days ago

United States Steel rating

7.6

Company rating: 7.6 out of 10

Based on 84 frontline employees who took The Breakroom Quiz

226th of 537 rated manufacturers

Job description


United States Steel - Granite City Works is seeking a Process Engineer -Finishing Mill Technology. This position will perform a full range of process engineer duties in the Cold Strip, Pickle Line and GGG areas including but not limited to:
  • Administer the U. S. Steel safety program to ensure a safe work environment, including proper housekeeping.
  • Learn and understand the Cold Mill, Pickle Line and GGG Technology processes.
  • Utilization of management skills to supervise, direct and coordinate the efforts of employees assigned to the operating facility to maximize operating efficiencies with minimum interruption.
  • Implementation of the production plan by coordinating material movement and equipment operation to meet customer's specifications -- including quality, delivery requirements, etc.
  • Administration of operating facilities' personnel, production reports, policies and procedures and other reporting as necessary.
  • Learn and understand the steelmaking process.

Requirements:
  • Bachelor's degree in Metallurgical, Materials Science, or Chemical Engineering is required.
  • 2 + years' experience in process engineering in a manufacturing industry is highly preferred, as is knowledge of industrial safety standards and environmental regulations.

Preferred candidate will have previous Finishing Mill experience.
Base salary range $90,000 - $105,000. This base salary range is a good faith estimate. Based on candidate skills/experience the final offer may be lower/higher.
Company Overview
Since 1901, U. S. Steel has been a recognized leader in steel production. Today, as the first North American steel company to have declared a 2050 net-zero greenhouse gas emissions goal, we remain as innovative as ever, leading transformation across our industry while continuing to make products for everyday life - from industries as far ranging as automotive, construction, containers and packaging, appliances, and energy.
Underneath it all is our Culture of Caring, which shows up in our community partnerships, charitable contributions, company-sponsored employee volunteer initiatives, scholarship programs, leadership training, and much more. And of course, it takes shape in a steadfast commitment to safety first in our workplaces and respect for our employees, who are United by Steel.
We are honored to have earned accolades and awards from well-regarded organizations, including the following:
  • Ethisphere's World's Most Ethical Companies® 2022, '23, '24
  • Disability: IN's Best Places to Work for Disability Inclusion 2021, '22, '23, '24
  • Human Rights Campaign Foundation's Equality 100 Award 2020, '21, '22, '23-24, '25
  • Military Times' Best for Vets: Employers 2023, '24

Conducting business with integrity and with the highest ethical values has underpinned U. S. Steel's success for over 100 years, and it remains critical to our company's success in the future. U. S. Steel is an Equal Opportunity Employer. It is our policy to provide equal employment opportunity (EEO) according to job qualifications without discrimination on the basis of race, color, religion, ancestry, national origin, age, genetics, sexual orientation, sex, gender identity, disability status or status as a protected Veteran or any other legally protected group status. (California residents may visit www.ussteel.com/CANotice regarding collection of personal information and U. S. Steel's privacy practices.)
Competency Summary
At U. S. Steel all employees are expected to display the following core competencies every day to advance corporate, team and individual goals:
Think: Think Critically and Drive Change
Lead: Develop Talent and Collaborate
Do: Empower Performance and Deliver Results

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