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Process Engineer Intern Jobs in O Fallon, MO (NOW HIRING)

Safe Fleet

Firmware Engineer Intern

Saint Louis, MO · On-site

Description The Firmware Engineer Intern is primarily responsible for providing technical ... Maintain and follow proper design processes for high-reliability firmware. * Analyze and resolve ...

Safe Fleet

Firmware Engineer Intern

Saint Louis, MO · On-site

The Firmware Engineer Intern is primarily responsible for providing technical excellence in ... Maintain and follow proper design processes for high-reliability firmware. * Analyze and resolve ...

CONCRETE STRATEGIES

Project Engineer Intern

Saint Louis, MO · On-site

$15.75 - $20.25/hr

Project Engineer Intern Summary Description: This position serves as support for operations on the ... simplify and process complex issues, understands the difference between critical details and ...

Leonardo DRS

Electrical Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Electrical Engineer Intern for our ... The position will investigate solutions to product or process problems. The ideal candidate will ...

Leonardo DRS

Electrical Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Electrical Engineer Intern for our ... The position will investigate solutions to product or process problems. The ideal candidate will ...

Leonardo DRS

Quality Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Quality Engineer Intern for our Bridgeton ... Help identify and communicate quality issues or process gaps * Support continuous improvement ...

Leonardo DRS

Quality Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Quality Engineer Intern for our Bridgeton ... Help identify and communicate quality issues or process gaps * Support continuous improvement ...

Leonardo DRS

Quality Software Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

Job Summary Leonardo DRS Land Systems is seeking a Summer Quality Engineer Intern for our Bridgeton ... Analyze processes and identify opportunities for improvement * Review key project deliverables to ...

Leonardo DRS

Systems Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

These interns will help our systems engineering (SE) team meet the technical performance requirements on complex system development programs and to execute an interdisciplinary process to ensure that ...

Leonardo DRS

Systems Engineer Intern

Bridgeton, MO · On-site

$41K - $53K/yr

These interns will help our systems engineering (SE) team meet the technical performance requirements on complex system development programs and to execute an interdisciplinary process to ensure that ...

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All JobsProcess Engineer Intern JobsProcess Engineer Intern Jobs in O'Fallon, MO

Process Engineer Intern information

See O Fallon, MO salary details

$13

$20

$28

How much do process engineer intern jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for process engineer intern in O'Fallon, MO is $20.75, according to ZipRecruiter salary data. Most workers in this role earn between $17.07 and $24.28 per hour, depending on experience, location, and employer.

What is a process engineer intern?

Process Engineer Interns are students or recent graduates who work temporarily in engineering teams to support the design, optimization, and improvement of manufacturing processes. They typically assist with data collection, process analysis, troubleshooting, and the implementation of new technologies or procedures under the supervision of experienced engineers. This internship provides hands-on experience, helping interns apply classroom knowledge to real-world industrial challenges, and often serves as a pathway to a full-time engineering role.

What are the key skills and qualifications needed to thrive as a process engineer intern?

To thrive as a Process Engineer Intern, you need a solid grounding in chemical, mechanical, or industrial engineering principles, often backed by enrollment in a relevant bachelor's degree program. Familiarity with process simulation software (such as Aspen Plus or AutoCAD), data analysis tools, and safety regulations is typically required. Strong problem-solving abilities, communication skills, and attention to detail help interns excel in team environments and tackle process challenges. These skills and qualifications are crucial for optimizing manufacturing processes, ensuring safety, and supporting project goals.

What do process engineer interns do?

As a Process Engineer Intern, you can anticipate working on a variety of hands-on projects that support process optimization, quality improvement, and efficiency initiatives within manufacturing or production environments. Typical responsibilities may include assisting with data collection and analysis, participating in process mapping, supporting root-cause investigations, and collaborating with multidisciplinary teams such as production, quality assurance, and maintenance. Interns often have opportunities to present their findings and contribute to real-world solutions, providing valuable exposure to daily operations and the chance to develop technical and teamwork skills essential for career advancement.

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

AspectProcess Engineer InternProcess Engineer
Required CredentialsTypically pursuing a bachelor's degree in engineering or related fieldBachelor's degree in engineering; often a master's is preferred
Work EnvironmentInternship setting, often in manufacturing or industrial plantsFull-time professional role in similar environments
Employer & Industry UsageInternship programs in manufacturing, chemical, or industrial companiesEstablished companies in manufacturing, chemical, or process industries
Common Search & Comparison IntentYesYes

The main difference between a Process Engineer Intern and a Process Engineer is experience level and responsibilities. Interns are typically students gaining practical experience, while Process Engineers are full-time professionals responsible for process optimization, design, and troubleshooting. Internships serve as a stepping stone toward a full engineering career, with interns working under supervision, whereas Process Engineers independently manage projects and processes in their industry.

What are the most commonly searched types of Process Engineer jobs in O'Fallon, MO? The most popular types of Process Engineer jobs in O'Fallon, MO are:
What are popular job titles related to Process Engineer Intern jobs in O'Fallon, MO? For Process Engineer Intern jobs in O'Fallon, MO, the most frequently searched job titles are:
What cities near O'Fallon, MO are hiring for Process Engineer Intern jobs? Cities near O'Fallon, MO with the most Process Engineer Intern job openings:
Process Engineer Intern jobs near you
Infographic showing various Process Engineer Intern job openings in O'Fallon, MO as of August 2026, with employment types broken down into 1% As Needed, 76% Full Time, 18% Part Time, 4% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $43,164 per year, or $20.8 per hour.

Firmware Engineer Intern

Safe Fleet

Saint Louis, MO • On-site

Internship

Posted 24 days ago

Job description

Description
The Firmware Engineer Intern is primarily responsible for providing technical excellence in designing, developing and testing firmware for high-volume electronic products associated with the vehicle emergency and safety industry, that meet cost, performance and schedule requirements. The intern will participate in innovative technology development through collaborative efforts and provide support in resolving customer issues.
Essential Responsibilities and Functions
  • Perform firmware design, coding, test and documentation for microcontroller-based products, following ESG's product development processes.
  • Help develop functional specifications and detailed design documentation for new products, working within an Agile/Scrum framework.
  • Collaborate with team in estimating schedules for development tasks.
  • Develop and execute detailed test plans to ensure system meets requirements.
  • Use AI-assisted tools to support embedded firmware development, including code generation, test case creation, and analysis of requirements and design artifacts under engineering guidance.
  • Validate AI-assisted outputs for embedded firmware by reviewing code, identifying potential inaccuracies or hallucinations, and confirming results through testing, debugging, and peer review.
  • Participate in continuous improvement of product development processes.
  • Maintain and follow proper design processes for high-reliability firmware.
  • Analyze and resolve field problems. Perform root cause analysis and determine preventive action(s).
  • Support the work of other engineers on project teams.
  • Participate in technical reviews (code inspections) of the work performed by the group.
  • Perform other related duties as assigned

Qualifications to Succeed
  • In the process of acquiring a Bachelor of Science in Computer Engineering, Electrical Engineering or Computer Science.
  • Experience with CoPilot, Claude, and ChatGPT.
  • A want to learn and understand how to use Ai to test firmware as well as search for hallucinations.
  • Ability to work well in teams.
  • Strong understanding of hardware, and familiar with the use of Oscilloscopes, DMMs.
  • Knowledge of debugging/troubleshooting techniques.
  • C programming language experience.
  • Willingness to learn and grow with input from other team members, as well as follow coding standards.
  • Experience with version control systems, defect tracking systems and static source code analysis.
  • Work equally well independently, as well as at the direction of others.
  • Good written and verbal communication skills.

Physical Demands and Work Environment
The physical demands described here are representative of those that must be met by a Team Member to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.
While performing the duties of this job, the team member is regularly required to talk or hear. The team member frequently is required to stand; walk; use hands to finger, handle or feel; and reach with hands and arms.
The above statements are intended to describe the general nature of work performed by the team members assigned to this job. All team members must comply with Company policies and applicable laws.
We do not discriminate on the basis of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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