Site Admin - Construction

MasTec Inc • Mountain Home, ID

5d • Onsite

About The Position

The Site Administrative II provides administrative and operational support to the project site, helping ensure efficient daily operations and supporting project leadership, employees, and corporate support teams. The role maintains accurate records, coordinates administrative activities, supports timekeeping and reporting processes, and assists with project- and employee-related administrative needs. Travel is required up to 100%, and the position requires presence at the project site in Rapid City, South Dakota.

MasTec Industrial provides EPC services and project development support for utility and industrial facilities, with expertise in power projects involving natural gas, oil, biomass, and other combustible fuels. The company describes safety and sustainability as foundational to its culture and emphasizes quality, inclusion, and employee development.

Requirements

• Associate degree or three years of experience in an administrative support position.
• Knowledge of MIC Health and Safety programs and project-specific regulations.
• Proficiency in Microsoft Word, Excel, PowerPoint, Outlook, and the internet.
• Strong verbal and written communication skills.
• Ability to multitask.
• Ability to work up to a 12-hour shift doing hard physical work in varying temperatures and outdoor conditions.
• Ability to push, pull, and frequently lift and carry objects weighing up to 50 pounds, and to stoop, kneel, balance, crouch, crawl, and climb as needed.
• Stamina to perform tasks repetitively and continuously for several-hour intervals.
• Ability to work in changing weather and site conditions, including exposure to extreme temperatures, dirt, dust, fumes, smoke, unpleasant odors, and loud noises.
• Ability to wear required personal protective equipment, including safety-toed shoes, gloves, safety glasses, hearing protection, a hardhat, and a vest.
• Ability to move in and around confined, cluttered, and uneven areas; work at heights; and comply with fall-protection requirements while using required safety equipment.
• Ability to evaluate information against measurable standards, notice details and slight differences in shapes and shading, and visualize three-dimensional objects from drawings.
• Ability to maintain balance and see and hear well, naturally or with correction.
• Ability to coordinate the use of eyes, hands, and feet.

Responsibilities

• Perform general administrative duties, including answering phones, managing email and mail correspondence, filing, and maintaining organized records.
• Schedule and coordinate meetings, appointments, and travel arrangements for project staff.
• Prepare, format, and edit reports, presentations, and other documents using Microsoft Office applications.
• Maintain office supplies and coordinate purchasing.
• Collect, enter, review, and verify employee timesheets for accuracy and timely submission to Payroll.
• Maintain project tracking logs, reports, databases, and spreadsheets.
• Reconcile management purchasing card statements monthly.
• Assist employees and project personnel with expense report preparation and submission.
• Maintain accurate records and supporting documentation related to project administrative and financial activities.
• Provide administrative support to project teams, including data entry, document control, and record maintenance.
• Assist Corporate HR with new-hire paperwork, I-9s, onboarding documentation, and other administrative requirements.
• Support employee onboarding by coordinating required paperwork and documentation with HR.
• Maintain confidentiality when handling employee, payroll, financial, and project-related information.
• Follow company policies, procedures, and established administrative processes.
• Perform other duties and special projects as assigned.
• When on site, participate in daily toolbox meetings with crews and subcontractors and set a personal example of safe behavior.

Benefits

• Competitive pay with ongoing performance review and merit increases
• 401(k) with company match
• Employee Stock Purchase Plan (ESPP)
• Flexible spending accounts for healthcare and dependent care
• Medical, dental, and vision insurance, with plan choice and coverage options for spouse, domestic partner, and children
• Diabetes management, telehealth coverage, prescription drug plan, and pet insurance
• Paid time off and paid holidays
• Bereavement leave
• Military leave, including differential pay and benefits continuation
• Employee Assistance Program
• Short- and long-term disability insurance
• Life insurance and accidental death and dismemberment coverage
• Voluntary life insurance, accident, critical illness, and hospital indemnity coverage
• Emergency Travel Assistance Program
• Group legal plan

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: Associate degree