MasTec Inc
MasTec IncVerified Source

Administrative Assistant EC Source MasTec

46K–58K
Onsite · Las Vegas, Nevada
Posted August 7, 2026
payroll

Overview

EC Source seeks an Administrative Assistant to support site and regional operations. The role provides efficient administrative assistance to field personnel and managers. This position offers competitive compensation and benefits.

What You'll Do10

  • 1Establish and maintain a filing system for current documentation
  • 2Assist with vendor relations including invoice payments and new vendor setup
  • 3Handle daily calls emails and correspondence routing requests efficiently
  • 4Track paperwork and process new work orders while updating project statuses
  • 5Organize staff meetings and prepare agenda materials for follow ups
  • 6Maintain bulletin boards with company newsletters and safety information
  • 7Respond to resource management and field operations requests promptly
  • 8Prepare expense reports weekly and submit payroll timesheets
  • 9Provide backup support to other office staff as needed
  • 10Coordinate special projects and assist field management with daily needs

Requirements5

  • 1High school diploma or equivalent
  • 21 year clerical experience with work orders and invoice processing
  • 3Associate degree preferred with business management or accounting courses
  • 4Construction industry experience preferred
  • 5Physical ability to lift up to 50 pounds and operate standard office equipment

Salary Insight

$46 - $58k per year

Location

Typeonsite
LocationLas Vegas, Nevada

Required Skills

sparkairflowcpc cardbcbaaws certified
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