Site Admin

Wanzek Construction, Inc.; Boise (ID); On-site; USD 37,000 - 44,000; Full time

Benefits offered by this job

401(k) with company match

Employee Stock Purchase Plan (ESPP)

Healthcare, Dental, Vision insurance

Paid time off

Job summary

MasTec Industrial is seeking a Site Admin to serve as the organizational backbone for field crews, project managers, and corporate teams in a fast-paced construction setting. You will handle receptionist duties, set up and maintain reports and databases, and assist HR with onboarding while juggling multiple priorities with precision.

You should be detail-driven, proficient in Microsoft Office, and comfortable working on a busy site.

Qualifications

• Associates Degree (A.A) or 1–3 years of administrative support experience.
• Proficient in Microsoft Word, Excel, PowerPoint, Outlook and Internet.
• Excellent verbal and written communication; strong multitasking.

Responsibilities

• Serve as receptionist and handle phones, visitors, mail, and supplies.
• Set up and maintain reports and databases.
• Assist HR with new hire paperwork and onboarding.
• Input and process timesheets for payroll.
• Maintain project tracking and purchasing records.
• Support Site Safety Coordinator as needed.
• Answer questions on payroll and timesheets.

Skills

Verbal communication

Written communication

Multi-tasking

Safety knowledge

Organizational skills

Education

Associate degree / admin exp

Tools

Microsoft Word

Microsoft Excel

PowerPoint

Outlook

Internet

Job description

Overview

Are you the kind of person who thrives in the fast-paced, boots‑on‑the‑ground world of construction? As our Site Admin, you’ll be the organizational powerhouse behind the scenes—supporting project managers, field crews, and corporate teams to keep everything moving smoothly. This role is perfect for someone who’s detail-driven, thrives in a construction environment, and knows how to juggle priorities without breaking a sweat.

COMPANY OVERVIEW:

MasTec Industrial, alongside its sister companies Casey Industrial and Phoenix Industrial, has been in operation since 1947. We serve a diverse clientele, including utilities, independent power producers, developers, and municipal utilities.

Specializing in projects using natural gas, oil, biomass, and other combustible fuels, our team boasts over 30 years of expertise in the power industry. We provide EPC (Engineering, Procurement, and Construction) services and assist in project development. Our experience spans various systems for utility and industrial facilities, including simple and combined cycle plants, reciprocating engines, and waste‑to‑energy projects. MasTec Industrial delivers value throughout all project phases, from conceptual design to operations and maintenance.

At MasTec Industrial, we are dedicated to delivering the highest quality, safety, and value in every project. We focus on attracting, developing, and retaining top talent within our organization. Our goal is to foster a respectful work environment where all employees feel valued, included, and empowered to become innovative leaders in the industry.

The MasTec Industrial market sector is part of the MasTec Clean Energy & Infrastructure business segment. MasTec’s Clean Energy & Infrastructure (CE&I) segment generates over $4 billion in annual revenue, providing construction services across industrial, renewables and infrastructure sectors. In addition to our industrial market sector; In infrastructure, we specialize in general heavy civil construction, underground utilities, structures, electrical work, material production, roadways, bridges, specialty pavement overlays, environmental projects and commercial buildings. Our renewables sector focuses on solar, wind and battery storage. Sustainability and safety are foundational to our culture and influence everything we do.

MasTec, a minority‑owned Fortune 500 company, has shaped the construction industry for more than 90 years. With over 35,000 employees and 400 offices nationwide, we provide flexibility and career growth in dynamic work environments.

Responsibilities

• Serve as receptionist with duties to include answering phones, greeting visitors, handling incoming and outgoing mail, mail, copying, ordering, and maintaining office supplies, etc.
• Set‑up and maintain reports and databases as requested
• Assist corporate HR with new hire paperwork and onboarding requirements
• Must be highly organized and able to multi‑task
• Assist the Site Safety Coordinator as needed
• Input, verify, and process timesheets for payroll
• Maintain tracking, reporting, database spreadsheets needed for project
• Reconcile management’s purchasing card statements monthly
• Assist all employees with questions on payroll and timesheets
• Assist with equipment questions (scanner, copy machine, etc.)
• Maintain a filing system of all documents and drawings and who they are given to
• All other duties as assigned

Qualifications

EDUCATION AND WORK EXPERIENCE REQUIREMENTS:

• Associates Degree (A.A) or 1 -3 years of experience in administrative support position

KNOWLEDGE, SKILLS, AND ABILITIES REQUIRED:

• Be knowledgeable of MIC Health and Safety programs and project specific regulations.
• When on‑site, actively participate in daily toolbox meetings with crews and subcontractors.
• Set a personal example of safe behavior.
• Proficient in Microsoft Word, Excel, PowerPoint, Outlook and Internet
• Strong verbal and written communication skills
• Ability to multi‑task
• Other may duties may be assigned

PHYSICAL DEMANDS

• Work up to a 12-hour shift doing hard physical work in varying temperatures and outside conditions.
• May need to maintain physical strength and stamina; Use arms, hands, and legs fully; Push, pull, and frequently lift and carry objects weighing up to 50 pounds; and stoop, kneel, balance, crouch, crawl, and climb to perform job tasks.
• Stamina to perform this task repetitively and continuously for several hour intervals.
• Uncontrolled environmental conditions: Constant change in weather and site conditions.
• This work environment may involve moderate exposure to unusual elements, such as extreme temperatures, dirt, dust, fumes, smoke, unpleasant odors and/or loud noises.
• Ability to wear personal protective equipment is required (including but not limited to- safety toed shoes, gloves, safety glasses, hearing protection, hardhat, vest, etc.).
• Move in and around confined, cluttered, and uneven areas.
• May need to work at heights and must be able to abide by all safety and fall‑protection requirements; must be able to wear and utilize all safety equipment required for work at heights.
• Evaluate information based on measurable standards; and see details in objects or drawings and recognize slight differences in shapes and shadings.
• Visualize objects in three dimensions from drawings.
• Keep good balance and work at heights.
• See well (either naturally or with correction).
• Hear well (either naturally or with correction.)
• Coordinate the use of eyes, hands, and feet.

HOURS

This position is a Full‑Time position scheduled to work typically 50 hours per week. Schedule is subject to projects requirements.

What’s in it for you:

Financial Wellbeing

• Compensation $27 - $32 per hour, commensurate with experience.
• Competitive pay with ongoing performance review and merit increase
• 401(k) with company match & Employee Stock Purchase Plan (ESPP)
• Flexible spending account (Healthcare & Dependent care)

Health & Wellness

• Medical, Dental, and Vision insurance (plan choice) - coverage for spouse, domestic partner, and children
• Diabetes Management, Telehealth Coverage, Prescription Drug Plan, Pet Insurance

Family & Lifestyle

• Paid Time Off, Paid Holidays, Bereavement Leave
• Military Leave, including Differential Pay and Benefits Continuation
• Employee Assistance Program

Planning for the Unexpected

• Short and long‑term disability, life insurance, and accidental death & dismemberment
• Voluntary life insurance, accident, critical illness, hospital indemnity coverage
• Emergency Travel Assistance Program
• Group legal plan

Position may be subject to pre‑employment screening, which may include background check and drug testing. Accessibility: If you need an accommodation as part of the employment process, contact [e-mail]. Due to the high volume of applications received, we are unable to respond to individual requests regarding application status. Please log into your candidate profile for up‑to‑date information.

MasTec, Inc. is an Equal Employment Opportunity Employer/Disability/Veteran. The Company's policy is not to unlawfully discriminate against any applicant or employee on the basis of race, color, sex, sexual orientation, gender identity, religion, national origin, age, disability, genetic information, military status, or any other consideration made unlawful by applicable federal, state, or local laws. The Company also prohibits harassment of applicants and employees based on any of these protected categories. It is also MasTec's policy to comply with all applicable state, federal and local laws respecting consideration of unemployment status in making hiring decisions.