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

The Process Engineer III plays a key role in leading the design for a defined scope of work-such as an area, a series of unit operations, or systems-within a project. This position is responsible for ...

The Process Engineer III plays a key role in leading the design for a defined scope of work-such as an area, a series of unit operations, or systems-within a project. This position is responsible for ...

Chemical Process Engineer Kelly ® Science & Clinical is seeking a Chemical Process Engineer for a contract position at a cutting-edge client in the pharmaceutical/API manufacturing industry in St ...

Senior Process Engineer

Berkeley, MO · On-site

$122.40 - $165.60/hr

Boeing Global Services (BGS) is seeking a Senior Process Engineer (Release Train Engineer) to join the Government Training Engineering (GTE) team in Berkeley, MO . This position will focus on ...

New

Senior Process Engineer (REQ865)

Saint Louis, MO · Remote

$106K - $137K/yr

Senior Process Engineer Maryland Heights, MO Spartech offers a competitive salary, incentives, and benefit programs! Spartech, LLC, headquartered in Maryland Heights, Missouri, has over a dozen ...

Process Lead Engineer

Saint Louis, MO

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Process Lead Engineer

Saint Louis, MO · On-site

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Process Lead Engineer

Saint Louis, MO · On-site

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Process Lead Engineer

Saint Louis, MO · On-site

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Process Lead Engineer

Saint Louis, MO

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Process Lead Engineer

Saint Louis, MO · On-site

$96K - $125K/yr

The Process Engineer works closely with clients, process architects, utilities engineers, mechanical engineers, and construction teams to translate manufacturing processes into clear, coordinated ...

Showing results 21-40

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 8, 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.

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 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:
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 II

CRB

Saint Louis, MO

Full-time

Posted 9 days ago


Job description

Company Description

CRB is a leading provider of sustainable engineering, architecture, construction and consulting solutions to the global life sciences and food and beverage industries. Our more than 1,100 employees provide best-in-class solutions that drive success and positive change for our clients, our people and our communities. CRB is a privately held company with a rich history of serving clients throughout the world, consistently striving for the highest standard of technical knowledge, creativity and execution.

Job Description

The Process Engineer III plays a key role in leading the design for a defined scope of work-such as an area, a series of unit operations, or systems-within a project. This position is responsible for managing scope, budget, and schedule for assigned work, which typically involves small to medium-sized projects of moderate complexity.

The Process Engineer III works closely with clients to understand design requirements, translate them into actionable scope, and document open issues, decisions, and next steps to keep the design moving forward. This role also requires identifying deviations from contracted scope or changes in design direction and escalating them to the Discipline Lead or Project Manager as needed.

Core Responsibilities

  • Serve as a primary point of coordination, frequently communicating with internal and external architects, engineers, clients, construction managers, trade partners, and vendors.
  • Manage multiple complex tasks, set priorities, and direct the work of others-working independently or under the guidance of a Lead Engineer or Project Manager.
  • Build and maintain strong technical networks internally and externally.
  • Establish trusted relationships with clients, vendors, and other stakeholders.
  • Support broader organizational initiatives such as Technical Advancement, Vertical Markets, and leadership opportunities.
  • Contribute to advanced deliverables and activities requiring deeper expertise, including:
    • Technical bid tabulations
    • Vendor package management
    • Factory acceptance testing
    • Risk assessments
    • HAZOP/HCCP and similar reviews
    • 3D model review and coordination
    • Preparing sequences of operations and reviewing functional specifications
  • Participate in cross-discipline and discipline-specific checks for small projects of intermediate complexity, ensuring overall project quality.
  • Mentor junior engineers and design staff.
  • Lead system design programming and planning with support from senior team members.
Qualifications

Minimum Qualifications

  • ABET-accredited bachelor's degree in a discipline-specific field
  • At least 5 years of experience in an operating company or design firm within a related industry
  • Strong written and verbal communication skills
  • Intermediate knowledge of industry standards, regulatory guidance, and building codes

Preferred Qualifications

  • EIT or PE certification
  • Proven ability to perform complex engineering tasks with minimal supervision
  • Experience coordinating and managing design efforts within project teams and with construction partners and vendors
  • Familiarity with construction support activities such as RFI responses, submittal reviews, punch list development, and progress reporting
  • Basic experience with commissioning, startup, qualification, and troubleshooting of process systems

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Additional Information

All your information will be kept confidential according to EEO guidelines.

CRB is committed to hiring and retaining a diverse workforce. We are proud to be an Equal Opportunity Employer and it is our policy to provide equal opportunity to all people without regard to race, color, religion, national origin, ancestry, marital status, veteran status, age, disability, pregnancy, genetic information, citizenship status, sex, sexual orientation, gender identity or any other legally protected category. Employment is contingent on background screening.

CRB does not accept unsolicited resumes from search firms or agencies. Any resume submitted to any employee of CRB without a prior written search agreement will be considered unsolicited and the property of CRB. Please, no phone calls or emails.

CRB offers a complete and competitive benefit package designed to meet individual and family needs.

If you are unable to complete this application due to a disability, contact this employer to ask for an accommodation or an alternative application process.