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Senior Project Jobs in O'Fallon, IL (NOW HIRING)

icon Mechanical

Senior Project Manager

Granite City, IL · On-site

$125K - $160K/yr

Senior Project Manager icon Mechanical is seeking qualified professionals to join our Project Management team. We are a full-service mechanical contractor and construction firm specializing in ...

icon Mechanical

Senior Project Manager

Granite City, IL · On-site

$100K - $140K/yr

Senior Project Manager icon Mechanical is seeking qualified professionals to join our Convergent Solutions Group team. We are a full-service mechanical contractor and construction firm specializing ...

exp

Senior Project Architect

Saint Louis, MO · On-site

$96K - $122K/yr

Be our next Senior Project Architect Your work environment at EXP In this role, you will be a part of the Aviation buildings team, of the Buildings Sector , based in St Louis, Missouri. A Senior ...

EXP

Senior Project Architect

Saint Louis, MO · On-site

$96K - $122K/yr

Be our next Senior Project Architect Your work environment at EXP In this role, you will be a part of the Aviation buildings team, of the Buildings Sector , based in St Louis, Missouri. A Senior ...

kindeva

Senior Project Engineer

Bridgeton, MO

$94K - $122K/yr

The Impact You Will Make The Senior Project Engineer leads the planning, justification, funding, execution, and startup of complex capital projects supporting manufacturing, facilities, utilities ...

kindeva

Senior Project Engineer

Bridgeton, MO

$94K - $122K/yr

The Impact You Will Make The Senior Project Engineer leads the planning, justification, funding, execution, and startup of complex capital projects supporting manufacturing, facilities, utilities ...

kindeva

Senior Project Engineer

Bridgeton, MO · On-site

$94K - $122K/yr

The Impact You Will Make The Senior Project Engineer leads the planning, justification, funding, execution, and startup of complex capital projects supporting manufacturing, facilities, utilities ...

kindeva

Senior Project Engineer

Bridgeton, MO

$94K - $122K/yr

The Impact You Will Make The Senior Project Engineer leads the planning, justification, funding, execution, and startup of complex capital projects supporting manufacturing, facilities, utilities ...

kindeva

Senior Project Engineer

Bridgeton, MO · On-site

$94K - $122K/yr

The Impact You Will Make The Senior Project Engineer leads the planning, justification, funding, execution, and startup of complex capital projects supporting manufacturing, facilities, utilities ...

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Senior Project information

See O Fallon, IL salary details

$58.3K

$118.2K

$172.1K

How much do senior project jobs pay per year?

As of Aug 30, 2026, the average yearly pay for senior project in O'Fallon, IL is $118,189.00, according to ZipRecruiter salary data. Most workers in this role earn between $96,500.00 and $136,200.00 per year, depending on experience, location, and employer.

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 cities near O'Fallon, IL are hiring for Senior Project jobs?

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

Senior Project Manager

Saint Louis, MO • On-site

Guarantee Electrical
Construction • 1 - 5K employees
Learn more about Guarantee Electricalexternal

Full-time

Re-posted 28 days ago

Job description

Senior Project Manager
Location: Varies by project
Business Unit: Mission Critical, Healthcare, Critical Infrastructure, Industrial, Low Voltage Systems, Facility Solutions
Reports to: Project Executive/Business Unit Leader
Think Strategically. Lead at Scale. Build What's Next.
Senior Project Managers at Guarantee Electrical lead some of the most complex and high value Mission Critical projects in the organization. These roles may require full time presence on a job site and carry significant responsibility for project success, client relationships, and organizational growth.
Position Purpose
The Senior Project Manager serves as a strategic leader responsible for delivering large scale or multiple concurrent projects while advancing Guarantee Electrical's market position, operational excellence, and leadership pipeline.
Key Responsibilities
  • Lead large or multiple complex projects from planning through completion
  • Develop strategic client relationships that drive repeat business
  • Manage advanced budgets, schedules, and risk strategies
  • Mentor project managers and develop future leaders
  • Influence regional and organizational initiatives
  • Implement innovative construction methodologies
  • Provide executive level reporting and insights
  • Drive continuous improvement and operational excellence

What You Bring
  • Strategic leadership and advanced problem solving capability
  • Proven success delivering large complex construction projects
  • Strong business acumen and client development skills
  • Ability to influence across teams and departments
  • Commitment to developing people and improving systems

Qualifications
  • Bachelor's degree in construction management, engineering, or related field
  • Ten or more years of construction experience with at least five years managing complex projects
  • Demonstrated success managing projects exceeding twenty million dollars or multiple concurrent projects
  • Professional certifications preferred
  • Valid driver's license and ability to travel as needed

Why Guarantee Electrical
At Guarantee Electrical, Senior Project Managers play a critical role in shaping the future of the organization.
As an employee-owned company, your leadership directly contributes to shared success. You are building value not just for clients and projects, but for yourself and your fellow partners. Ownership reinforces long term thinking, accountability, and pride in the work we deliver.
We offer defined career paths that support continued growth whether that means leading larger portfolios, influencing regional strategy, or moving into executive leadership. Your experience and insight help guide both projects and people.
Living our Guarantees is more than a value statement. It is how we operate every day. Senior leaders model integrity, trust, collaboration, and commitment to safety and quality. You will be part of a leadership team that believes strong culture and strong results go hand in hand.
Guarantee Electrical is an Equal Opportunity Employer committed to building a diverse and inclusive team.

Apply