ZipRecruiter

Log In

1

Assistant Process Engineer Jobs in Missouri (NOW HIRING)

Prysmian

Process Engineer

Sedalia, MO

$39.90 - $50.48/hr

Achieve measurable productivity gains and KPI goals as identified by the Plant Manager and the Process Engineering Manager. * Assist the Engineering & Maintenance Manager with the preparation of the ...

Pretium Packaging

Process engineer

Saint Louis, MO

$42.31 - $49.52/hr

... inspection. * Assist production with new project set-ups, tool changes and program adjustments ... Process Engineering * Plastics - PA6 Experience * Plastics - PA66 Materials Experience * Plastic ...

Lhoist Group

The Process Engineer will direct, coordinate and exercise functional authority for planning ... Plan and assist in capital expansions, machine and equipment replacement, and changes in technology ...

Prysmian Group

Process Engineer

Sedalia, MO · On-site

Achieve measurable productivity gains and KPI goals as identified by the Plant Manager and the Process Engineering Manager. * Assist the Engineering & Maintenance Manager with the preparation of the ...

Lhoist Group

The Process Engineer will direct, coordinate and exercise functional authority for planning ... Plan and assist in capital expansions, machine and equipment replacement, and changes in technology ...

Pretium Packaging

Process Engineer

Saint Louis, MO

$90K - $130K/hr

The Process Engineer assists plant leadership and works collaboratively with all other departments ... inspection. * Assist production with new project set-ups, tool changes and program adjustments.

Ingredion

Process Engineer

North Kansas City, MO

$40.58 - $54.10/hr

TITLE: Process Engineer LOCATION: North Kansas City REPORTS TO: Manager Process Engineering ... design to assist Operations with troubleshooting and meeting costs and production goals.

Ingredion

Process Engineer

North Kansas City, MO · On-site

TITLE: Process Engineer LOCATION: North Kansas City REPORTS TO: Manager Process Engineering ... design to assist Operations with troubleshooting and meeting costs and production goals.

Pretium Packaging

Process Engineer

Saint Louis, MO · On-site

The Process Engineer assists plant leadership and works collaboratively with all other departments ... inspection. * Assist production with new project set-ups, tool changes and program adjustments.

CORTEX EPCM LLC

Process Engineer

Saint Louis, MO · On-site

$80K - $120K/yr

Job Summary The primary role of the Process Engineer is to develop and design mechanical processes ... Utilize laser scanning equipment on-site to assist in creating 3D models. * Participate in team ...

Niagara Bottling, LLC

Process Engineer

Kansas City, MO · On-site

Process Engineer Assists with the improvement of processes in the manufacturing plant. Evaluates ... Develop testing equipment and methods as required * Assist with JSA and development of procedures ...

Ingredion

Process Engineer

North Kansas City, MO · On-site

$84K - $112K/yr

Onsite Ingredion is hiring a Process Engineer to join our team and drive innovation within our ... to assist Operations with troubleshooting and meeting costs and production goals.Evaluating ...

next page

Showing results 1-20

All JobsProcess Engineer JobsAssistant Process Engineer JobsAssistant Process Engineer Jobs in Missouri

Assistant Process Engineer information

See Missouri salary details

$13

$23

$45

How much do assistant process engineer jobs pay per hour?

As of Aug 6, 2026, the average hourly pay for assistant process engineer in Missouri is $23.89, according to ZipRecruiter salary data. Most workers in this role earn between $16.44 and $27.74 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as an assistant process engineer?

To thrive as an Assistant Process Engineer, a solid background in chemical or process engineering, analytical problem-solving skills, and a relevant engineering degree are essential. Familiarity with process simulation software (such as Aspen HYSYS or AutoCAD), data analysis tools, and safety regulations is typically required. Strong teamwork, effective communication, and attention to detail help individuals stand out in this role. These skills and qualities ensure efficient process optimization, safe operations, and successful collaboration within engineering teams.

How much does an assistant process engineer get paid?

The average salary for an assistant process engineer ranges from $55,000 to $75,000 per year, depending on experience, location, and industry. Entry-level positions may start lower, while experienced assistants with specialized skills or certifications can earn higher wages. Salaries often include benefits such as health insurance and paid time off.

What does an assistant process engineer do?

An assistant process engineer supports the development, implementation, and optimization of manufacturing or chemical processes. They assist in data collection, process troubleshooting, and ensuring safety and quality standards are met, often using tools like process simulation software. This role typically requires technical knowledge, problem-solving skills, and familiarity with industry regulations.

What is the difference between Assistant Process Engineer vs Process Engineer?

AspectAssistant Process EngineerProcess Engineer
QualificationsBachelor's in Engineering or related field, some certificationsBachelor's or higher in Engineering, often with more experience
Work EnvironmentSupportive, entry-level, team-basedMore autonomous, project management responsibilities
ResponsibilitiesAssist in process design, data collection, troubleshootingDesign, optimize, and oversee manufacturing processes

Assistant Process Engineers typically support process development and troubleshooting under supervision, while Process Engineers take on more independent responsibilities in designing and optimizing processes. Both roles require similar educational backgrounds, but Process Engineers usually have more experience and autonomy in their tasks.

What are some common challenges faced by assistant process engineers, and how can they effectively overcome them?

Assistant Process Engineers often encounter challenges such as adapting to rapidly changing project requirements, troubleshooting unexpected process inefficiencies, and balancing multiple tasks under tight deadlines. To navigate these obstacles, it's important to develop strong problem-solving skills, maintain clear communication with senior engineers and cross-functional teams, and stay organized through effective time management. Proactively seeking feedback and learning from experienced colleagues can also help in building confidence and technical expertise, paving the way for career progression.
What are the most commonly searched types of Process Engineer jobs in Missouri? The most popular types of Process Engineer jobs in Missouri are:
What are popular job titles related to Assistant Process Engineer jobs in Missouri? For Assistant Process Engineer jobs in Missouri, the most frequently searched job titles are:
What job categories do people searching Assistant Process Engineer jobs in Missouri look for? The top searched job categories for Assistant Process Engineer jobs in Missouri are:
Assistant Process Engineer jobs near you
Infographic showing various Assistant Process Engineer job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 78% Full Time, 16% Part Time, 4% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $49,701 per year, or $23.9 per hour.

Process Engineer

Liquid Environmental Solutions

Houston, MO • On-site, Remote

Full-time

Posted 8 days ago

Liquid Environmental Solutions rating

7.5

Company rating: 7.5 out of 10

Based on 13 frontline employees who took The Breakroom Quiz

22nd of 89 rated recycling and waste

Job description

Position Overview:
The Treatment & Recovery Process Engineer is responsible for driving two core outcomes: process improvements that strengthen day-to-day operational consistency, and process improvements that ensure sustained Permit Compliance across the LES Treatment & Recovery network. Under the direction of the AVP Process Operations, the Process Engineer applies engineering skills and principles to evaluate process performance, diagnose issues, and recommend and implement changes that improve both operational reliability and regulatory compliance. This is a hands-on, servant-leadership role: the Process Engineer works directly alongside process and plant operators in the field, leading by example and building operator capability to sustain improvements - not simply directing from a distance. The Process Engineer will drive continuous process improvement and establish standard operating excellence throughout the Treatment & Recovery facilities.
Essential Functions:
Process Improvements - Operations
  • Lead and support process design, optimization, and troubleshooting for FOG, industrial separation systems, and related wastewater treatment units to strengthen operational consistency across sites.
  • Collect and analyze operational data (flows, temperatures, pressures, separation efficiency, etc.) to identify and drive process improvement opportunities.
  • Assist with commissioning and start-up activities at new or upgraded treatment sites.
  • Support T&R's Capital Plan, providing process evaluation and expertise to support developing project scope for the T&R facilities.

Process Improvements - Compliance
  • Monitor and assess treatment system performance for Permit Compliance; identify and implement process improvements that close compliance gaps, reduce risk, and capture cost savings.
  • Ensure process documentation is accurate and updated across sites to support compliance and audit readiness.
  • Collaborate with engineering, compliance, and EH&S teams to maintain operational integrity and safety.
  • While at operating sites, all activities should be performed in compliance with Company and site safety guidelines and in compliance with local, state and federal regulations at all times.
  • Compile and analyze various reports to support decision-making, management reporting, and compliance.

Hands-On Servant Leadership
  • Partner with, and work directly alongside, local operations teams in the field to build operator capability and ensure consistent adherence to process standards and regulatory requirements.
  • Conduct process audits, implement best practices, and recommend equipment or process upgrades - leading hands-on with plant operators rather than directing from a distance.
  • Provide summary reports with process evaluation and recommendations to Treatment and Recovery Management and Site Management.
  • Deliver excellent customer service at all levels.
  • Communicate with co-workers, management, clients, vendors and others in a courteous and professional manner.
  • Coordinate with other Liquid Environmental Solutions departments.

General
  • Complete all documents and reports as required.
  • Perform all other duties as assigned.

Education and Experience:
  • Bachelor's degree in Engineering
  • Engineering Management Experience (preferred)
  • 3 - 5 years of Industrial Process Engineering
  • Process operations experience desired

Knowledge and Skills:
  • Experience working with other departments and facilities.
  • Microsoft Office Suite of products including Word, Excel, Project
  • Experience with Access, PowerPoint, and Outlook a plus
  • Proven leadership skills
  • Cost and risk management skills
  • Self-starter
  • Time Management skills
  • Excellent communication, interpersonal and negotiating skills
  • Strong analytical skills
  • Professional, courteous demeanor.

Working Environment:
  • Combination of office and field/plant environments.
  • General office conditions
  • Some light lifting and bending
  • Periods of sitting
  • Evening and/or weekend work hours may be required to meet project deadlines.
  • Travel to project site

This job description in no way states or implies these are the only duties to be performed by the employee incumbent in the position. Employees will be required to follow any other legal or ethical job-related duties requested by any person authorized to give instructions or assignments. A review of this position has excluded the marginal functions of the position that are incidental to the performance of fundamental job duties.
This document does not create an employment contract, implied or otherwise. Liquid Environmental Solutions has an "at will" relationship with team members.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.

What Liquid Environmental Solutions employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

Apply