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Join Olsson's Industrial team as a Process Engineer and help deliver innovative solutions for clients across the agricultural processing, ethanol, food and beverage, renewable fuels, manufacturing, chemical, and industrial markets. Comprehension of core chemical engineering principles, including transport phenomena and unit operations, thermodynamics and equations of state, mass transfer, chemical kinetics, and continuous and batch reactor design.

Olsson

Process Engineer - Industrial Market

GreenHouseAPI

Quality reviews and updates production drawings for a variety of projects and project-related data as required by the project managers to verify corrections are made within multiple CAD-related software. As a Mechanical Engineer, you will work on project teams to create world-class designs for new projects, alterations and redevelopments on a variety of power projects.

YEAR

Burns & McDonnell

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Working across engineering, operations, maintenance, quality, EHS, finance, supply chain, and senior leadership, you will ensure projects are delivered safely, efficiently, on schedule, within budget, and with minimal disruption to production. The successful candidate must be comfortable walking through operating facilities, climbing stairs or ladders, working around moving equipment, dust, noise, and changing temperatures, and wearing required personal protective equipment.

AFB International

Senior Global Project Engineer

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About Midwest Railcar LLC - Midwest Railcar, LLC, a company related to Imperial PFS (IPFS), is a premier railcar leasing and rail fleet management company serving a diverse range of industries, including agriculture, energy, construction materials, iron & steel, chemicals, plastics, food products, and many others. The company owns, leases, and manages a fleet of more than 31,000 railcars, offering a broad range of equipment including covered hoppers, gondolas, tank cars, boxcars, open top hoppers, and flatcars through flexible leasing solutions tailored to meet customer needs.

Imperial PFS

Data Analytics Engineer

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Salary Range: (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, as well as internal and external equity) Statement on Diversity and Inclusion Farnsworth Group is a collection of employees with unique backgrounds and perspectives that all come together to make us a better Company. For ten consecutive years, we’ve been certified as a Great Place to Work®, and our engineers, architects, surveyors, and scientists channel their passion and expertise into making meaningful contributions to the world around us.

Farnsworth Group

Water/Wastewater Engineer - Project Manager

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Freedom Technology Solutions Groups is looking to add a Cross Domain Engineer to support a fast-paced team provisioning customer dataflow in an Enterprise Cross Domain System. Experience working with Cross Domain Solutions and operationally supporting CDS technologies on the NCDSMO approved products list.

Freedom Technology Solutions Group

Cross Domain Engineer 715

We're looking for a Product Engineer to help launch a new business focused on Low Energy Exploding Foil Initiator (LEEFI) technology and turn an emerging design into a qualified, production-ready product for U.S. defense programs. Required Qualifications: Bachelor’s degree in Mechanical Engineering, Chemical Engineering, Electrical Engineering, Materials Engineering, or a related engineering discipline.

Critical Fit Recruiting

Product Engineer-LEEFI

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. The engineer collaborates with multidisciplinary teams to conduct experimental investigations, analyze complex thermal-fluid phenomena, validate combustion hardware, and support the development of next-generation propulsion technologies.

Mach Industries

Senior Combustion Engineer

Leidos Energy's, EPC Solutions group, part of Electric Transmission and Substation Solutions, is looking for a Senior Substation Physical Engineer to lead physical design on transmission and distribution substations for electric utility clients nationwide. Knowledge of outdoor substation equipment and layouts, including power transformers, circuit breakers, disconnect switches, instrument transformers, surge arresters, bus systems, steel structures, grounding systems, and associated station equipment.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Senior EPC Physical Substation Engineer

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With $8.1 billion in revenue for 2025, Clayco specializes in the "art and science of building," providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. Clayco is a full-service, turnkey real estate development, master planning, architecture, engineering, and construction firm that safely delivers clients across North America the highest quality solutions on time, on budget, and above and beyond expectations.

Clayco

Senior Electrical Engineer

A Master of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems, Cybersecurity, or equivalent technical degree and a minimum of 8 years of experience in full stack development to include Java, Web services, Database, and micro-service development software,engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work. Or, a Bachelor of Science or equivalent degree in Computer Science, Engineering, Mathematics, Information Systems or equivalent technical degree and a minimum of 10 years of experience in full stack development to include Java, Web services, Database, and micro-service development software, engineering/development, or a related area that demonstrates the ability to successfully perform the duties associated with this work.

Senior Software Engineer 566

With $8.1 billion in revenue for 2025, Clayco specializes in the ''art and science of building,'' providing fast track, efficient solutions for mission critical, industrial, life sciences, power & energy, aviation, commercial, institutional, residential and sports & entertainment related building projects. The Senior Mechanical Engineer will lead the mechanical design of projects, provide technical expertise, and ensure the successful delivery of engineering solutions for mission-critical facilities, including data centers, advanced manufacturing plants, and other high-availability environments.

Clayco Inc

Senior Mechanical Engineer

Pay Range: There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. This role is ideal for engineers who enjoy solving complex security challenges, working collaboratively across cyber and audit teams, and building secure, scalable SAP platforms.

CACI International Inc.

SAP Security Engineer

Bridgestone and its subsidiaries develop, manufacture and market a wide range of Bridgestone, Firestone and associate brand products and solutions to address the needs of a broad range of customers and industries. Bridgestone Americas, Inc. (BSAM), headquartered in Nashville, Tennessee, and Bridgestone Europe, Middle East and Africa (BSEMEA), headquartered in Brussels, Belgium, operate collectively as a "Bridgestone West" strategic region.

Bridgestone Americas Inc

Lead, Electrical Engineer

Systems Engineers guide engineering teams in taking a multi-discipline approach to requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability and analysis across the National System of Geospatial-intelligence (NSG), Allied System of Geospatial-intelligence (ASG) and Federal Agencies to ensure timely and accurate GEOINT. Required: Bachelor's degree or higher in Systems Engineering or in related technical or scientific fields such as engineering, physics, mathematics, operations research, engineering management, Computer Science, Information Technology, Management Information Systems, or related STEM degree program, or 12+ years of work experience as a Systems Engineer.

Peraton Inc

Senior Systems Engineer

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. This team delivers core business data to multiple endpoints, including email, print, data storage, data messaging and synchronization for internal and external clients, and SMS text messaging.

HOUR

StratAcuity Staffing Partners Inc

Test Engineer

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts.

Systems Engineers - Weapons Programs

Test Automation Engineer

This role is ideal for a controls engineering professional who enjoys designing, developing, and supporting innovative BAS solutions while working closely with project managers, engineers, and field technicians. How to Apply: If you’re an experienced BAS Applications Engineer with a passion for designing high-quality building automation solutions, this is an excellent chance to join a respected mechanical contractor with over seven decades of industry leadership.

ControlsJobs

BAS Applications Engineer

In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. The ideal candidate can work independently to create test scenarios, build Postman collections, validate data and system behavior, investigate defects, and maintain test plans and test cases throughout the software development lifecycle.

Process Engineer Jobs in Hazelwood, MO

Process Engineer - Industrial Market Olsson

mechanical-engineer-power-multiple-locations Burns & McDonnell

Senior Global Project Engineer AFB International

Data Analytics Engineer Imperial PFS

Water/Wastewater Engineer - Project Manager Farnsworth Group

Cross Domain Engineer 715 Freedom Technology Solutions Group

Product Engineer-LEEFI Critical Fit Recruiting

Senior Combustion Engineer Mach Industries

Senior EPC Physical Substation Engineer Leidos Holdings Inc

Senior Electrical Engineer Clayco

Senior Software Engineer 566 Freedom Technology Solutions Group

Senior Mechanical Engineer Clayco Inc

SAP Security Engineer CACI International Inc.

Lead, Electrical Engineer Bridgestone Americas Inc

Senior Systems Engineer Peraton Inc

Test Engineer StratAcuity Staffing Partners Inc

Systems Engineers - Weapons Programs StratAcuity Staffing Partners Inc

Test Automation Engineer StratAcuity Staffing Partners Inc

BAS Applications Engineer ControlsJobs

Senior Test Engineer StratAcuity Staffing Partners Inc

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