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Project Manager Jobs in O Fallon, IL (NOW HIRING)

CESO, Inc.

Project Manager

Saint Louis, MO · On-site

$82K - $160K/yr

Are you a Project Manager in the Architecture, Engineering, and Construction field seeking purpose, challenge, and talented colleagues? With a diverse portfolio of residential, energy, commercial ...

CESO, Inc.

Project Manager

Saint Louis, MO · On-site

$85K - $167K/yr

Are you a Project Manager in the Architecture, Engineering, and Construction field seeking purpose, challenge, and talented colleagues? With a diverse portfolio of residential, energy, commercial ...

CESO, Inc.

Project Manager

Saint Louis, MO · On-site

$85K - $167K/yr

Are you a Project Manager in the Architecture, Engineering, and Construction field seeking purpose, challenge, and talented colleagues? With a diverse portfolio of residential, energy, commercial ...

Aegis

Project Manager

Saint Louis, MO · On-site

$90K - $150K/yr

About the Role We are currently seeking a Project Manager to support construction management services for our valued client's data center project. This position will work with a team of professionals ...

LRS

Project Manager

Saint Louis, MO

$48 - $57/hr

LRS Consulting Services is seeking a Project Manager for a contract opportunity. This role offers the chance to apply your skills in support of meaningful work for one of our client partners. LRS ...

EPS

Project Manager

Saint Louis, MO · On-site

Project Manager About The Company: Electric Power Systems (EPS) is a NETA-accredited independent electrical testing and engineering organization specializing in electrical acceptance testing ...

TERRACON

Project Manager

Saint Louis, MO · On-site

Manage all aspects of a materials engineering project to ensure that it is safely completed on time and within scope and budget. Responsible for completing the project as per its contracted scope ...

Apidel Technologies

Project Manager

Saint Louis, MO

US - General Engineering & Skilled Trade Project Manager 5 Must have Pharma/clean room experience, brownfield experience is highly prefrered. Sigma ADC Expansion project Principal project engineer ...

Clayco

Project Manager

Saint Louis, MO · On-site

The Role We Want You For The Project Manager will be based in the Midwest. In this role you will be responsible for taking projects from conceptual stages through closeout. You will work as part of a ...

Kelly Services

Project Manager

Saint Louis, MO

Project Manager Contract- End of 2027-Potential for Extension or Permanent Location-St. Louis, MO or Rochester, NY Full Benefits The Medical Device Maintenance of Business (MOB) Project Manager is ...

ServiceMaster

Project Manager

Saint Louis, MO · On-site

The Project Manager will be responsible to oversee a team of technicians who perform water and fire clean-up work in residential and commercial properties, demolition, restorative drying, packing out ...

The Korte Company

Project Manager

Saint Louis, MO · On-site

$80K - $155K/yr

Manage the flow of information to project participants. * Collaborate with the owner, designers, preconstruction services and other team members to ensure the project design and construction achieves ...

The Korte Company

Project Manager

Saint Louis, MO · On-site

The Korte Company is seeking an experienced Construction Project Manager to join our team in Highland, IL or St. Louis, MO to act as the primary point of contact and coordination on our existing and ...

Kelly Services

Project Manager

Saint Louis, MO · On-site

Project Manager Contract- End of 2027-Potential for Extension or Permanent Location-St. Louis, MO or Rochester, NY Full Benefits The Medical Device Maintenance of Business (MOB) Project Manager is ...

Clayco

Project Manager

Saint Louis, MO

The Role We Want You For The Project Manager will be based in the Midwest. In this role you will be responsible for taking projects from conceptual stages through closeout. You will work as part of a ...

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Showing results 41-60

All JobsProject JobsProject Manager JobsProject Manager Jobs in O'Fallon, IL

Project Manager information

See O Fallon, IL salary details

$35.9K

$95.8K

$151.1K

How much do project manager jobs pay per year?

As of Aug 6, 2026, the average yearly pay for project manager in O'Fallon, IL is $95,782.00, according to ZipRecruiter salary data. Most workers in this role earn between $73,200.00 and $114,700.00 per year, depending on experience, location, and employer.

How does a project manager typically collaborate with cross-functional teams during a project lifecycle?

Project Managers play a central role in coordinating efforts across various departments such as engineering, marketing, finance, and operations. They facilitate regular meetings, set clear expectations, and ensure all stakeholders are aligned on project goals, timelines, and deliverables. Effective communication and conflict resolution skills are crucial, as Project Managers often bridge gaps between different teams to keep the project on track. This collaborative approach helps to identify potential issues early and fosters a cohesive team environment.

What is the difference between Project Manager vs Business Analyst?

AspectProject ManagerBusiness Analyst
CertificationsPMP, CAPMCBAP, CCBA
Work EnvironmentLeads projects, manages teamsAnalyzes business needs, documents requirements
Industry UsageCommon in IT, construction, engineeringCommon in IT, finance, healthcare
Primary FocusProject delivery, timelines, budgetsBusiness process, requirements, solutions

The main difference between a Project Manager and a Business Analyst is their focus. Project Managers oversee project execution, timelines, and team coordination, while Business Analysts focus on understanding business needs and defining requirements. Both roles are essential in project success but serve different functions within the project lifecycle.

How do I become a project manager?

To become a project manager, you typically need a combination of education, such as a bachelor's degree in business, management, or a related field, and relevant experience in project coordination or team leadership. Earning certifications like PMP (Project Management Professional) can improve job prospects, and strong skills in communication, organization, and using project management tools are essential for success.

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

To thrive as a Project Manager, you need strong organizational, leadership, and problem-solving skills, often supported by a degree in business or a related field and relevant project management experience. Familiarity with project management software (like Microsoft Project, Asana, or Jira) and certifications such as PMP or PRINCE2 are typically required. Excellent communication, adaptability, and conflict resolution skills help you lead diverse teams and manage stakeholder expectations. These skills ensure projects are delivered on time, within budget, and to the desired quality, driving organizational success.

Is it hard to find a job as a project manager?

Finding a job as a project manager can vary depending on industry demand, experience, and certifications like PMP or Agile. Strong communication, leadership skills, and proficiency with project management tools improve employability, but competition can be high in some regions or sectors.

What does a project manager do?

A Project Manager is responsible for planning, organizing, and overseeing projects to ensure they are completed on time, within budget, and meet the required quality standards. They coordinate between different teams, manage resources, set deadlines, and handle any issues that arise during the project lifecycle. Project Managers also communicate progress to stakeholders and adjust plans as needed to achieve project goals.

How do you become a project manager?

To become a project manager, individuals typically need a combination of education, such as a bachelor's degree in business, management, or a related field, and relevant experience in project coordination or team leadership. Earning certifications like PMP (Project Management Professional) can enhance job prospects, and strong skills in communication, organization, and leadership are essential for success in the role.
More about Project Manager jobs
What are the most commonly searched types of Project jobs in O'Fallon, IL? The most popular types of Project jobs in O'Fallon, IL are:
What job categories do people searching Project Manager jobs in O'Fallon, IL look for? The top searched job categories for Project Manager jobs in O'Fallon, IL are:
What cities near O'Fallon, IL are hiring for Project Manager jobs? Cities near O'Fallon, IL with the most Project Manager job openings:
Project Manager jobs near you
Infographic showing various Project Manager job openings in O'Fallon, IL as of July 2026, with employment types broken down into 90% Full Time, and 10% Contract. Highlights an 92% In-person, and 8% Hybrid job distribution, with an average salary of $95,782 per year, or $46 per hour.

Project Manager

CESO, Inc.

Saint Louis, MO • On-site

$82K - $160K/yr

Full-time

Re-posted 3 days ago

Job description

Are you a Project Manager in the Architecture, Engineering, and Construction field seeking purpose, challenge, and talented colleagues? With a diverse portfolio of residential, energy, commercial, light industrial and public programs, CESO has the opportunity for you to develop your career. We develop leaders and empower our associates to use their skills and talents to positively impact the world through service – to our coworkers, clients, and communities. We subscribe to the mission of “finding purpose through serving others,” so if this speaks to you, let’s connect!  

At CESO, the Project Manager is to plan, execute, and deliver projects according to strict deadlines and within budget. This includes acquiring resources and coordinating the efforts of team members and third-party contractors or consultants in order to deliver projects according to plan. The Project Manager will also define the project’s objectives, oversee quality control and be responsible for invoicing and managing of accounts receivable. The Project Manager will represent CESO in all project related communications with client from initial effort throughout entire course of agreement activity, and in post agreement marketing activities on a regular basis.
Primary Responsibilities
  • Prepare proposals to provide professional services for individual projects or programs including scope, schedule, fee budget, as well as fee negotiations, change order preparation, monthly billing and coordinate other contract negotiations with senior leadership.
  • Accountable for the team’s quality of work, productivity, and actions.
  • Leads and manages the full lifecycle of architecture and engineering projects from project initiation through closeout.
  • Serves as the primary client contact, managing relationships, expectations, and communications throughout the project.
  • Oversees project planning, budgeting, scheduling, and resource allocation to ensure successful project delivery.
  • Coordinates multi-disciplinary project teams, ensuring technical quality, schedule adherence, and financial performance.
  • Develops and monitors project work plans, including task assignments and deliverables for internal teams and subconsultants.
  • Prepares contracts, change orders, fee proposals, and client billing.
  • Ensures compliance with applicable building codes, regulations, standards, and client requirements.
  • Proactively identifies project risks and develops mitigation strategies to address scope, schedule, and budget challenges.
  • Leads internal project meetings and client presentations; prepares progress reports and other project documentation.
  • Contributes to business development efforts, including proposal development and project interviews.
  • Responsible for billing, invoicing the project, and tracking/managing a client’s accounts receivable in collaboration with the accounting department to ensure payment by contract terms
  • Supervising direct reports is a key responsibility of this job.
  • Perform other duties as assigned.
Position Requirements
  • Bachelor's degree in Architecture, Civil Engineering or related field, with a minimum of 4 years of experience directly managing projects in a design and construction related field is preferred;
  • Or 10 years related experience and/or training is required.
  • Professional Licensure (RA, PE, PS, RLA) is preferred.
  • PMP certification is preferred.
  • Computer skills necessary to enter daily timesheet data and use Microsoft Outlook for email correspondence.
  • Proficient knowledge of Microsoft Suite products, Deltek, and Newforma.
Benefits and Perks
  • Flexible and Hybrid Work Schedule
  • Paid Time Off – Credited to You 100% Upfront
  • 401K with a Company Match
  • Rewards and Recognition Program
  • Training and Development to Foster Professional Growth
  • Paid Holidays
  • Medical / Dental / Vision Coverage
  • Welcome Box
  • Casual Dress Code
  • Reimbursement for Professional Licenses
  • Paid Time Off for Community Team Service Events
  • Voluntary or Supplemental Short-Term / Long-Term Disability
  • Employee Assistance Program
  • Company Paid Bonding and Recovery
  • Employee Events such as Lunches and Outings to Foster a Positive Work Environment
CESO Compensation Transparency:
The pay band shown reflects the minimum and maximum base salary for this position at CESO. Actual pay is 
determined by several factors, including location, experience, education, skills, and internal equity. Our pay 
structures are benchmarked against industry and market data to stay competitive. Each offer is based on a full review 
of a candidate’s background, qualifications, and fit for the role.
 
Below are the typical new hire pay ranges for this position based on location:
Dayton, OH: $87,182 - $110,431
Akron, OH: $82,594 - $104,619
Cincinnati, OH: $87,182 - $110,431
Cleveland, OH: $87,182 - $110,431
St. Louis, MO: $87,182 - $110,431
CESO is a principle-centered organization that aligns with strong service values, integrity, and authenticity.  We develop and inspire through training and coaching on the job.  At CESO, we believe that work should be more rewarding than just a paycheck.  In addition to a comprehensive benefit and compensation program, we create memories and friendships through our employee and service events.

CESO, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, genetics, disability, age, veteran status, or any other characteristic protected by law. This organization participates in E-Verify and is a drug-free workplace. Criminal background checks and drug/alcohol checks are required.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.