Administrative Assistant

Quanta Infrastructure Solutions Group, LLC•Lone Tree, CO

4d•$19 - $46•Onsite

About The Position

Quanta Infrastructure Solutions Group, LLC (QISG), a Quanta Services, Inc. company, is seeking an Administrative Assistant to provide professional administrative and operational support to the Director of Materials Management. The position serves as a central point of coordination for the department, managing executive scheduling, correspondence, and meeting logistics while maintaining the accuracy and integrity of controlled materials-program documents, tracking records, and procurement paperwork. The successful candidate will exercise sound judgment, handle confidential information with discretion, and work effectively with internal teams, vendors, and field personnel. The role is suited to an experienced administrative professional, ideally with a background in construction, utilities, or engineering, procurement, and construction (EPC) environments. The position is primarily office based. Occasional site visits require PPE and the ability to walk on uneven ground. Travel is expected to remain under 10 percent, and hours may extend around project milestones, mobilizations, and reporting deadlines.

Requirements

High school diploma or equivalent.
Three or more years of administrative support experience for a manager or director, ideally in construction, utilities, or an EPC environment.
Advanced Excel skills, including lookups, pivot tables, and filters, and the ability to identify an incorrect formula.
Strong command of Excel, Word, PowerPoint, Outlook, and Teams.
Accurate data-entry skills and a habit of checking one's work.
Ability to handle confidential pricing, vendor, and personnel information.

Nice To Haves

Associate or bachelor's degree in business administration, supply chain, or a related field.
Familiarity with purchase orders, material take-offs, receiving, and packing-list review.
Experience with an ERP or procurement system.

Responsibilities

Manage the Director's calendar, travel, and expense reports; screen calls and email and route them appropriately.
Schedule and coordinate logistics for weekly materials reviews, vendor calls, and site coordination calls; circulate agendas, take minutes, and track action items through completion.
Draft, format, and proofread letters, memos, presentations, and reports for the Director, applying QISG templates and brand standards.
Maintain controlled materials-program documents, including plans, procedures, reference books, and trackers; keep document numbers, revision history, and distribution lists accurate.
Enter and update tracker data from purchase orders, packing lists, delivery tickets, and receiving reports; flag quantity or description mismatches to the Materials Manager.
Prepare weekly status reports and metrics packages from tracker data and verify totals against source records before submitting them to the Director.
Log purchase orders and change orders, track vendor acknowledgments, and follow up on missing certificates, MTRs, and delivery confirmations.
Prepare invoices for coding and routing, and reconcile them against purchase orders and receiving records before approval.
Maintain current contact lists for vendors, carriers, site personnel, and fleet management.
Coordinate onboarding for new materials staff, including equipment, system access, orientation schedules, and training records.
Order office and field supplies and manage department subscriptions and software licenses.
Handle invoice approval and purchase order setup.
Adhere to internal standards, policies, and procedures.
Perform special projects and other duties as assigned or requested.

Benefits

Competitive compensation.
Multiple medical, dental, and vision plans with 100% preventive care.
24/7 telehealth through Teladoc.
Employee Assistance Program (EAP).
Company-funded HSA and pre-tax savings options.
401(k) retirement plan.
No-cost short- and long-term disability coverage.
Employer-paid basic life and AD&D insurance.
Paid time off and 10 paid holidays.
Paid parental leave.
Education reimbursement and professional development.
Employee discount program.
Optional identity theft protection, accident insurance, voluntary life insurance for spouse and child, critical illness coverage, hospital indemnity, and pet insurance.