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Project Engineer I Jobs in O Fallon, IL (NOW HIRING)

Clayco

Mechanical Engineer I

Saint Louis, MO · On-site

In this role, you will work closely with engineers, project managers, and other disciplines to support mechanical design efforts from concept through construction. You will assist with calculations ...

Clayco

Mechanical Engineer I

Saint Louis, MO · On-site

In this role, you will work closely with engineers, project managers, and other disciplines to support mechanical design efforts from concept through construction. You will assist with calculations ...

TRIMEDX Holdings

Imaging Engineer I

O Fallon, IL · On-site

Summary The Imaging Engineer I installs, inspects, troubleshoots, repairs, calibrates, and verifies ... Projects as assigned Regulatory Compliance - 25% * Ensure the accuracy and integrity of the ...

Trimedx

Imaging Engineer I

O Fallon, IL · On-site

Summary The Imaging Engineer I installs, inspects, troubleshoots, repairs, calibrates, and verifies ... Projects as assigned Regulatory Compliance - 25% * Ensure the accuracy and integrity of the ...

Bausch + Lomb

Metrology Engineer I

Saint Louis, MO · On-site

Participate on cross-functional project teams during design and development to establish and define ... Qualifications: * Bachelor's degree in Engineering or a related technical discipline, or an ...

Wilson & Company

Civil Project Manager

Saint Louis, MO · On-site

$130K - $175K/yr

Mentor and develop engineers, EITs, designers, and junior project staff while promoting ... I railroads, short line railroads, industrial rail clients, intermodal facilities, rail-served ...

Esri

Software Development Engineer I

Saint Louis, MO · On-site

$75K - $129K/yr

This is a unique opportunity to grow your technical skills while contributing to projects that matter. You'll work alongside engineers and mentors in a collaborative, cross-functional environment ...

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Showing results 41-60

All JobsProject Engineer I JobsProject Engineer I Jobs in O'Fallon, IL

Project Engineer I information

See O Fallon, IL salary details

$42K

$84.6K

$126.9K

How much do project engineer i jobs pay per year?

As of Sep 3, 2026, the average yearly pay for project engineer i in O'Fallon, IL is $84,553.00, according to ZipRecruiter salary data. Most workers in this role earn between $69,000.00 and $96,500.00 per year, depending on experience, location, and employer.

What does a Project Engineer I do?

A Project Engineer I is an entry-level engineering professional who assists in planning, coordinating, and executing engineering projects within an organization. They typically work under the supervision of senior engineers or project managers, helping to prepare project documentation, monitor progress, and ensure that technical standards and deadlines are met. Their role may involve collaborating with different teams, troubleshooting issues, and supporting project delivery from start to finish. This position is ideal for recent engineering graduates looking to gain practical experience and grow their project management skills.

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

To thrive as a Project Engineer I, you typically need a bachelor's degree in engineering, strong problem-solving abilities, and a foundational understanding of project management principles. Familiarity with CAD software, project scheduling tools like Microsoft Project, and basic knowledge of industry codes or standards is often required. Effective communication, teamwork, and adaptability help you collaborate with cross-functional teams and manage changing project requirements. These skills and qualities are essential to ensure projects are completed efficiently, safely, and within scope and budget.

What are some common challenges faced by a Project Engineer I, and how can they be addressed?

As a Project Engineer I, one common challenge is balancing multiple tasks and deadlines while ensuring project specifications are met. You may also encounter difficulties coordinating with cross-functional teams or managing changes in project scope. To address these challenges, effective time management, clear communication, and proactive problem-solving are essential. Seeking guidance from senior engineers and utilizing project management tools can also help you stay organized and meet expectations.

What is the difference between Project Engineer I vs Project Engineer II?

AspectProject Engineer IProject Engineer II
Required CredentialsBachelor's degree in engineering or related field; some certifications preferredBachelor's degree; often more certifications or experience required
Work EnvironmentEntry-level role, supporting project teams, on-site and officeMore independent responsibilities, overseeing parts of projects
Employer & Industry UsageCommon in construction, manufacturing, civil engineeringSimilar industries, with increased scope and responsibility

The main difference between Project Engineer I and Project Engineer II lies in experience and responsibility. Project Engineer I is an entry-level position focused on supporting project tasks, while Project Engineer II involves more independent work and oversight. Both roles require similar educational backgrounds, but the II typically demands more experience or certifications. Understanding these distinctions helps candidates and employers align expectations and career progression.

What are popular job titles related to Project Engineer I jobs in O'Fallon, IL?

For Project Engineer I jobs in O'Fallon, IL, the most frequently searched job titles are:

What cities near O'Fallon, IL are hiring for Project Engineer I jobs?

Cities near O'Fallon, IL with the most Project Engineer I job openings:

Project Engineer I jobs near you
Infographic showing various Project Engineer I job openings in O'Fallon, IL as of August 2026, with employment types broken down into 83% Full Time, 14% Part Time, and 3% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution, with an average salary of $84,553 per year, or $40.7 per hour.

Midstream Project Engineer - Natural Gas Facilities

Farnsworth Group

Saint Louis, MO • Hybrid

Full-time

Medical, Dental, Vision, Retirement, PTO

Re-posted 25 days ago

Job description

Farnsworth Group is seeking a Midstream Project Engineer - Natural Gas Facilities in one of the posting locations below. In this role, you will have an opportunity to join a growing engineering team and play a key role in the company’s future growth as part of Farnsworth’s Energy and Utilities group. This is an excellent opportunity to showcase leadership, project management, and technical knowledge within this industry.
Posting Locations for this role: Colorado Springs, CO; Greenwood Village (Denver Tech Center), CO; Indianapolis, IN; Lisle, IL; or St. Louis, MO
What You'll Do:
  • Provide technical expertise on natural gas facility projects (e.g., compressor stations, metering/regulation stations) in support of other Farnsworth Group project managers.
  • Develop projects by analyzing existing facilities for proposed improvements to performance, safety, and reliability as requested by our clients.
  • Prepare detailed technical documents, engineering calculations, design specifications, P amp;IDs (Piping and Instrumentation Diagrams), and reports in support of projects for our clients.
  • Coordinate with drafters/designers to develop engineering drawings.
  • Support construction activities at field locations to ensure compliance with drawings and specifications. This includes periodic site visits, oversight of Farnsworth team members on site, and/or addressing contractor inquiries.
  • Ability to manage engineering projects from conception to completion, including scoping, budgeting, scheduling, design coordination, construction support, and project closeout is desired. This would include coordination with client representatives, internal departments (i.e. survey, structural, electrical, etc.), subcontractors, and other Energy and Utility team members.
  • Develop proposals including fee estimating, subcontractor request for proposals, schedule preparation in Microsoft Project, and writing of proposal letters while coordinating with the proposal team.

What You'll Need:
  • BS in Engineering from an ABET accredited institution.
  • Minimum of 10 years of experience in facility design in the natural gas industry.
  • Compression experience – sizing/modeling, specifying, designing, installing, commissioning.
  • Knowledge of CFR 49 part 192.
  • Knowledge of gas transmission systems as well as mechanical components and ancillary systems installed at compressor stations.
  • Familiar with coordinating with clients, attending client meetings, and overseeing quality standards.
  • Experience working with natural gas utilities and/or midstream companies.
  • Licensed Professional Engineer desired.
  • Computer proficiency with MS Office - Word, Excel, PowerPoint, and MS Project.
  • Working knowledge of AutoCAD, CADWorx and related third-party platforms a plus.
  • Must demonstrate strong written and oral communication skills.
  • Must be willing to travel and have a valid driver’s license.

Who We Are
Join Farnsworth Group, a nationally recognized architectural, engineering, and surveying firm, where your career can thrive! 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. With almost 650 talented professionals across 24 offices, we collaborate with clients ranging from small communities to some of the world’s largest brands. Our success is built on our people - their passion, creativity, and commitment to excellence. Here, you’ll find a supportive culture that champions your growth, embraces challenges, values work-life balance, and empowers you to make a lasting impact for our clients and the communities we serve. Join us and move your career forward.
A Great Place to Work Certified
For ten consecutive years, Farnsworth Group has earned the prestigious Great Place to Work® certification—thanks to our employees! Each year, our staff participates in a survey administered by the Great Place to Work organization, measuring perceptions of credibility, respect, pride, fairness, and camaraderie. The results are benchmarked against the nation’s leading companies, and only top performers receive the certification. Insights from the survey help us continually enhance our work environment and foster a culture that makes Farnsworth Group an even greater place to work.
Featured benefits and perks include:
  • 401(k) with 100% Company Match up to 5%
  • Medical/Dental/Vision Insurance Plans
  • Flexible Spending and Health Savings Accounts
  • Short amp; Long-Term Disability
  • Maternity and Paternity Leave
  • Professional Development and Training
  • Mentoring Program
  • Paid Time Off
  • Wellness/Fitness Reimbursements
  • Pet Insurance Plan
  • Hybrid Work Program
Farnsworth Group appreciates that flexibility and work-life balance are important aspects of the careers and lives of our employees. Our Hybrid Work Program offers employees a flexible work arrangement while contributing to the Company’s culture and success.
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. It is our goal to recruit, hire, develop, retain, and promote a diverse group of people. Join us…and let’s make a difference, together.
Farnsworth Group, Inc. is proud to be a M/F Disabled and Veteran EEO/AA employer.
For immediate consideration, please Apply Online by clicking on the "Apply for this Position" tab below.
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