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Project Engineer Jobs in O Fallon, MO (NOW HIRING)

Astrix Inc

Project Engineer

Saint Louis, MO · On-site

$80K - $100K/yr

Pay Rate Low: 38 | Pay Rate High: 48 Project Engineer Salary: $80,000 - $100,000 Position Summary We are seeking a hands-on Project Engineer to join our team in a cGMP-regulated manufacturing ...

Astrix Inc

Project Engineer

Saint Louis, MO · On-site

Pay Rate Low: 40 | Pay Rate High: 50 Our client is seeking a hands-on Project Engineer to lead facility, utility, and manufacturing improvement projects in a regulated manufacturing environment. This ...

MBG

Project Engineer

Saint Louis, MO · On-site

Our Project Engineers bring curiosity, organization, and follow-through to every job-helping teams stay aligned, documentation stay clean, and projects move forward with confidence. This role is ...

MBG

Project Engineer

Saint Louis, MO · On-site

Our Project Engineers bring curiosity, organization, and follow-through to every job-helping teams stay aligned, documentation stay clean, and projects move forward with confidence. This role is ...

Cochran

Project Engineer

Union, MO

We are seeking a motivated and detail-oriented Project Engineer to support a wide range of civil engineering projects. This role is ideal for someone with an EIT certification who is actively ...

Cochran

Project Engineer

Union, MO

We are seeking a motivated and detail-oriented Project Engineer to support a wide range of civil engineering projects. This role is ideal for someone with an EIT certification who is actively ...

Murphy Company

Project Engineer

Saint Louis, MO · On-site

Project Engineer Murphy Company, the Best Choice in Mechanical construction since 1907, is hiring a Project Engineer for our Construction Operations team, located in our St. Louis, MO office. About ...

Murphy Company

Project Engineer

Saint Louis, MO

Project Engineer Murphy Company, the Best Choice in Mechanical construction since 1907, is hiring a Project Engineer for our Construction Operations team, located in our St. Louis, MO office. About ...

Ebi

Project Engineer

O Fallon, MO · On-site

As a Project Engineer, you'll take ownership of projects from concept to completion while collaborating with cross-functional teams to drive continuous improvement. Key Responsibilities: * Lead ...

Craftsmen Industries

Project Engineer

Saint Charles, MO · On-site

Project Engineer Location: St. Charles, MO Position Summary: The Project Engineer ensures the timely and efficient completion of projects to achieve cost and schedule objectives. Acts as a technical ...

Craftsmen Industries

Project Engineer

Saint Charles, MO · On-site

Project Engineer Location: St. Charles, MO Position Summary: The Project Engineer ensures the timely and efficient completion of projects to achieve cost and schedule objectives. Acts as a technical ...

GHD Group

Project Engineer

Saint Louis, MO · On-site

Our Central US Water business is growing! We're looking for a Project Engineer with expertise in water and wastewater conveyance systems to support and/or lead the design of complex infrastructure ...

Guarantee Electrical

Project Engineer I

Saint Louis, MO · On-site

Project Engineer I Location: Varies by project Reports to: Project Manager Build Your Foundation. Learn the Craft. Power What Matters. Since 1904, Guarantee Electrical has been trusted to deliver ...

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Showing results 1-20

All JobsProject Engineer JobsProject Engineer Jobs in O'Fallon, MO

Project Engineer information

See O Fallon, MO salary details

$42.1K

$84.8K

$127.2K

How much do project engineer jobs pay per year?

As of Aug 2, 2026, the average yearly pay for project engineer in O'Fallon, MO is $84,758.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,200.00 and $96,800.00 per year, depending on experience, location, and employer.

What engineers make $300,000 a year?

Senior engineering roles such as petroleum engineers, aerospace engineers, and certain software engineers with extensive experience and specialized skills can earn $300,000 or more annually. These positions often require advanced certifications, leadership responsibilities, and work in high-demand industries like oil and gas, aerospace, or technology sectors.

What is the difference between Project Engineer vs Construction Manager?

AspectProject EngineerConstruction Manager
CredentialsBachelor's in engineering or related field, certifications like PMP or EIT often preferredBachelor's in construction management, civil engineering, or related; PMP certification common
Work EnvironmentOffice and site; supports project planning and technical tasksPrimarily on-site overseeing construction activities
Employer & Industry UsageEngineering firms, construction companies, project-based industriesConstruction firms, general contractors, large infrastructure projects
Common Search & ComparisonYesYes

The main difference between a Project Engineer and a Construction Manager lies in their focus and responsibilities. Project Engineers typically handle technical aspects, planning, and supporting project execution, often working closely with engineers and designers. Construction Managers oversee the entire construction process, managing teams, schedules, and budgets on-site. Both roles require similar credentials and are integral to construction projects, but their day-to-day tasks and focus areas differ.

What engineers make $200,000 a year?

Senior engineers in fields such as petroleum, aerospace, and software engineering often earn $200,000 or more annually, especially with extensive experience, advanced skills, and relevant certifications. These roles typically require specialized knowledge, leadership responsibilities, and often involve working in high-demand industries or managerial positions.

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

To thrive as a Project Engineer, you need a solid background in engineering principles, project management, and a relevant engineering degree. Familiarity with CAD software, project scheduling tools like MS Project or Primavera, and certifications such as PMP or PE are often required. Strong problem-solving, communication, and leadership skills help you coordinate teams and manage project challenges effectively. These skills and qualifications are critical for delivering projects on time, within budget, and to the required quality standards.

How does a Project Engineer typically collaborate with other departments during a project?

Project Engineers play a central role in coordinating between engineering, procurement, and construction teams to ensure project objectives are met. They regularly communicate with design engineers to clarify technical requirements, work closely with procurement to source materials on schedule, and liaise with construction managers to address on-site challenges. Effective collaboration is essential for resolving issues quickly, maintaining timelines, and ensuring quality standards. This role often requires strong interpersonal skills and the ability to mediate between diverse teams to keep the project moving smoothly.

What Is a Project Engineer?

There are project engineer jobs in a variety of industries. The duties of this position vary depending on the industry. For example, in construction, a project engineer is a project manager. They may have a background in engineering or construction management. Typically, they manage all aspects of the progress and the day-to-day operations on a construction site. In manufacturing, project engineers work with both the design and the engineering teams to develop and manage a manufacturing process, including overseeing the budget and deliverables. All project engineering positions require industry-specific technical knowledge and management skills.

What exactly does a project engineer do?

A project engineer oversees technical aspects of construction or engineering projects, coordinating between design teams, contractors, and clients to ensure project specifications, schedules, and budgets are met. They often review plans, manage resources, and use tools like project management software to track progress. Strong communication, problem-solving skills, and relevant certifications are typically required.

What engineer makes $500,000 a year?

While most engineering roles do not reach a $500,000 annual salary, some highly specialized or executive-level engineers, such as senior petroleum engineers, aerospace engineers in leadership positions, or those working in high-paying industries like oil and gas or private aerospace firms, can earn this level of compensation. These roles often require advanced skills, extensive experience, and sometimes additional bonuses or stock options.

What are Project Engineers?

Project Engineers are professionals who oversee and coordinate technical aspects of engineering projects from conception to completion. They work closely with project managers, engineers, and other stakeholders to ensure that projects are delivered on time, within budget, and according to specifications. Their responsibilities often include planning, scheduling, budgeting, resource allocation, and problem-solving. They also ensure compliance with safety regulations and quality standards throughout the project lifecycle.
More about Project Engineer jobs
What job categories do people searching Project Engineer jobs in O'Fallon, MO look for? The top searched job categories for Project Engineer jobs in O'Fallon, MO are:
What cities near O'Fallon, MO are hiring for Project Engineer jobs? Cities near O'Fallon, MO with the most Project Engineer job openings:
Project Engineer jobs near you
Infographic showing various Project Engineer job openings in O'Fallon, MO as of July 2026, with employment types broken down into 86% Full Time, 8% Part Time, 3% Temporary, and 3% Contract. Highlights an 100% In-person job distribution, with an average salary of $84,795 per year, or $40.8 per hour.

Project Engineer

Astrix Inc

Saint Louis, MO • On-site

$80K - $100K/yr

Full-time

Posted 9 days ago

Job description

Pay Rate Low: 38 | Pay Rate High: 48
Project Engineer
Salary: $80,000 - $100,000
Position Summary
We are seeking a hands-on Project Engineer to join our team in a cGMP-regulated manufacturing environment. Reporting to the Director of Project Engineering, this role is responsible for leading a wide variety of capital and facility improvement projects from concept through completion.
This is not a desk-only engineering position. Approximately half of your time will be spent in the field working alongside contractors, maintenance personnel, and in-house tradesmen to ensure projects are executed safely, efficiently, and to the highest quality standards. Projects range from facility maintenance improvements, such as parking lot repairs, to the design and installation of new manufacturing and production lines valued at up to $10 million.
We're looking for someone who enjoys solving problems in the field, collaborating with skilled trades, and taking ownership of projects from start to finish.
Key Responsibilities
  • Plan, develop, coordinate, and execute multiple engineering projects from concept through completion.
  • Develop project scopes, budgets, schedules, task lists, milestones, and performance objectives.
  • Manage manufacturing line projects, facility upgrades, utility improvements, and building modifications.
  • Read and interpret process flow diagrams (PFDs) to properly size piping and coordinate process equipment layouts with Process and Production Engineers.
  • Collaborate with the CAD and BIM (3D Design) teams to develop and review engineering drawings.
  • Coordinate detailed design, construction documentation, installation, and project execution.
  • Oversee contractors and work closely with in-house maintenance and trades personnel during construction and installation.
  • Prepare cost estimates, manage project schedules, and ensure projects are completed on time and within budget.
  • Partner with Engineering, Maintenance, Operations, Quality, and Safety teams to minimize disruption to manufacturing while maintaining compliance.
  • Ensure all projects comply with Food Safety, Active Pharmaceutical Ingredient (API), cGMP, and Management of Change (MOC) requirements.
  • Serve as the primary point of contact with vendors, contractors, and outside engineering resources.
  • Evaluate new technologies and engineering methods to improve facility reliability, efficiency, and functionality.
  • Perform all work in accordance with company safety standards and engineering best practices.

Qualifications
  • Bachelor's degree in Mechanical Engineering, Chemical Engineering, or Industrial Engineering.
  • Minimum of 3 years of project engineering experience in a manufacturing or industrial environment.
  • Experience managing engineering projects from planning through execution.
  • Comfortable working directly with contractors, maintenance teams, and skilled trades in an active manufacturing environment.
  • Strong understanding of mechanical systems, construction practices, and industrial projects.
  • Experience reading process flow diagrams (PFDs); process piping experience is a plus.
  • Manufacturing experience in food or pharmaceutical environments is preferred.

This job description is a complete list of all desired skills, but not all are required. We strongly encourage candidates who have some of the skills to apply. We look forward to a conversation to learn more about you!
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