Construction Site Administrator

System One; Fort Lupton (CO); On-site; USD 50,000 - 65,000; Full time

Job summary

A leading construction support firm is seeking a Site Administrator for their Fort Lupton, CO operations. The role involves managing day-to-day site trailer functions, supporting logistics, and providing administrative assistance to both onsite personnel and visiting stakeholders. Candidates should have 3–5+ years of administrative experience, proficiency in Microsoft Office, and excellent organizational skills. The position operates fully on-site from Monday to Friday, 7:00 AM to 3:30 PM.

Qualifications

• 3–5+ years of administrative experience, preferably 5+.
• Proficiency in Microsoft Office including Word, Excel, and Outlook.
• Experience with expense reporting tools like SumTotal.

Responsibilities

• Manage daily operations of the job site trailer.
• Provide administrative support for onsite and remote staff.
• Coordinate logistics and services for site operations.

Skills

Strong organizational skills

Proactive work ethic

Strong written and verbal communication skills

Problem-solving and troubleshooting abilities

Education

High school diploma or GED

Tools

Microsoft Office

SharePoint

OneNote

Adobe Pro/Bluebeam

Job description

Site Administrator – Fort Lupton, CO (Onsite)

Project Overview

System One is seeking a Site Administrator to support construction activities in Fort Lupton, CO. This role will play a key part in supporting the development of a new facility by providing comprehensive administrative and operational support on‑site.

The Site Administrator will manage the job site trailer, coordinate logistics, support meetings, and ensure smooth day‑to‑day operations for both onsite personnel and visiting stakeholders.

Key Responsibilities

• Manage daily operations of the job site trailer
• Order and maintain office and site supplies
• Attend daily Plan of the Day meetings (7:00 AM), capture and distribute meeting minutes
• Provide administrative support for onsite staff and remote team members
• Support and coordinate meetings, including note‑taking and follow‑ups
• Serve as a point of contact for site visitors and vendors
• Coordinate catering, supplies, and services as needed
• Ensure efficient communication and organization across the site

Typical Day

• Early Start: Arrive before 7:00 AM to prepare for the day
• Morning Meeting: Attend and document the 7:00 AM Plan of the Day meeting
• Administrative Support: Manage trailer operations, supplies, and documentation
• Meetings & Coordination: Participate in meetings, support staff, and coordinate logistics
• Wrap‑Up: Complete outstanding tasks and prepare for the next day

Team & Work Environment

• Supports the entire site team, including onsite personnel, trailer staff, and visitors
• Acts as an individual contributor, with opportunities to collaborate with other site administrators across locations
• Fast‑paced, hands‑on construction environment with a strong focus on teamwork and communication

Work Schedule

• Monday–Friday, fully onsite
• Typical hours: 7:00 AM – 3:30 PM

Required Qualifications

• 3–5+ years of administrative experience (5+ preferred)
• Strong organizational skills and proactive work ethic
• Proficiency in Microsoft Office (Word, Excel, Outlook)
• Experience with SharePoint, OneNote, and Adobe Pro/Bluebeam
• Experience with expense reporting tools (e.g., SumTotal or similar)
• Valid driver’s license and reliable transportation
• High school diploma or GED required

Preferred Qualifications

• Experience with SAP (preferred, not required)
• Prior experience supporting construction sites or working in a job site trailer environment
• Background with companies such as Mortenson, Vestas, or similar industries

Key Competencies

• Strong written and verbal communication skills
• Problem‑solving and troubleshooting abilities
• Resourcefulness and initiative
• Ability to collaborate and ask questions when needed
• Adaptability in a dynamic work environment