Site Project Manager (Harrison)

At 3S Incorporated , we put people first while delivering fire protection solutions that help safeguard some of North America’s most critical industrial operations. We specialize in the design, installation, and maintenance of industrial fire alarm and fire suppression systems, supporting customers across industries including automotive, steel, data centers, power generation, petrochemical, and energy.

As 3S continues to grow, we’re looking for a Site Project Manager who is ready to take ownership, lead from the field, and help drive projects successfully from mobilization through closeout.

What's In It for You

3S Incorporated is proud to be a part of APi Group, giving our team members access to the resources and opportunities of a global organization that support you.

• Competitive Compensation with additional per diem for eligible project travel
• Comprehensive Medical, Dental, Vision, and more
• Wellness Program
• 401(k) Plan with Employer Match
• Employee Stock Purchase Plan
• Profit Sharing or Pension
• Generous Paid Time Off (PTO) & Holidays
• Growth opportunities through company sponsored leadership development courses and training

What You'll Do

As a Site Project Manager, you'll be the driving force behind the successful on-site execution of our projects. You'll oversee installation and site coordination, helping ensure work is completed safely, on schedule, and in accordance with project specification and applicable codes. Our Site Project Manager will play a pivotal role in building and maintaining a healthy “win-win” relationship with our end customers and subcontractor partners.

This position is primarily a traveling, project-based role. Your day-to-day work will take place at project site(s) across the U.S. Your home of record is considered when determining project assignments, giving you the opportunity to work closer to home. You’ll also have the flexibility to travel home during scheduled time off.

Pre-Construction & Site Preparation

• Review project drawings, scopes of work, specifications, proposals, and other sales documentation.
• Understand project financials, schedules, and key deliverables.
• Complete required site safety documentation and prepare for mobilization.
• Coordinate with subcontractors to confirm scope, responsibilities, and project expectations.
• Review engineering, installation, material, and submittal schedules to ensure the team is prepared for execution.

Project Execution & Field Leadership

• Lead site coordination meetings and calls with customers, subcontractors, and project stakeholders.
• Manage project schedules for the full site or your assigned area of responsibility.
• Review and complete Job Safety Analyses (JSAs) and promote site-specific safety best practices.
• Confirm designated work areas are ready before crews begin installation.
• Coordinate, oversee, and support subcontractor activities.
• Coordinate material deliveries and site logistics with the broader project team.
• Monitor project progress and proactively identify potential schedule, quality, cost, or coordination challenges.
• Inspect completed work for compliance with design specifications, contract requirements, applicable codes, and 3S quality standards.
• Provide weekly written updates to the Project Manager covering progress, site conditions, successes, challenges, and subcontractor status.
• Support work-in-progress (WIP) updates with the Director of Operations.
• Maintain strong communication and positive working relationships with customers, subcontractors, and internal teams throughout the project.

Project Closeout

• Provide accurate and timely as-built information to the Project Engineer.
• Coordinate and submit required project closeout documentation.
• Complete, track, and sign off on punch-list items.
• Lead site demobilization and coordinate closeout activities with all involved parties.
• Help ensure a smooth transition from project execution to final completion.

What You'll Bring

• 1–2+ years of experience in the fire protection industry or a similar technical/service environment.
• Working knowledge of fire alarm systems and applicable codes.
• Ability to understand project financials and financial reporting.
• Strong leadership and interpersonal skills with the ability to motivate and coordinate teams.
• Excellent organizational, communication, and time-management skills.
• Ability to manage multiple priorities and solve problems in a fast-moving project environment.
• Proficiency with Microsoft Office and applicable industry software.
• Valid driver’s license and a clean driving record.

Physical Requirements

• Prolonged periods of sitting and standing at a desk, driving, bending, and/or working on a computer.
• Must be able to occasionally lift up to 50 lbs. with or without a reasonable accommodation.

If you enjoy being close to work, solving problems, being a great leader, join 3S Incorporated and help us build strong partnerships and successful projects.

All offers of employment are expressly contingent upon the satisfactory completion, in accordance with Company policy, of a pre-employment drug screening and background check.

3S Incorporated is an equal opportunity employer and does not discriminate on the basis of religion, disability, protected veteran status, age, sex, race, color, national origin, or any other characteristic protected by law.

3S Incorporated complies with federal and state disability laws and will make reasonable accommodations for applicants and qualified employees with disabilities.

If you wish to request reasonable accommodations to participate in the job application or interview process, please contact .