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Office Assistant

Posted on May 5, 2026

  • Manassas, United States of America
  • 18.0 - 21.0 USD (hourly)
  • Full Time

Office Assistant job opportunity

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Job Overview

Superior Janitorial Services, Inc. is a leading provider of high-quality commercial janitorial services throughout Washington, D.C., Maryland, and Virginia. We are seeking a motivated, detail-oriented Office Assistant to join our growing team.

In this key role, you will help ensure the smooth day-to-day operation of our office by supporting administrative tasks, assisting with client communications, and coordinating with our field supervisors. The ideal candidate is organized, proactive, and enjoys working in a fast-paced environment while providing excellent customer service.

Key Responsibilities

  • Respond to phone, email, and text inquiries regarding cleaning services, project requests, and general company information
  • Manage calendars, schedule and dispatch jobs and services
  • Maintain organized digital and physical records through data entry, filing, and document management using Google Workspace and Microsoft Office
  • Perform administrative tasks including proofreading documents, managing correspondence, and preparing accounts receivable and expense reports
  • Assist with basic bookkeeping functions using QuickBooks
  • Provide professional customer service to clients, vendors, and employees by responding to questions and support requests
  • Order and track office supplies, uniforms, and janitorial equipment for job sites
  • Assist with employee onboarding processes and help prepare payroll and subcontractor payment documentation
  • Collaborate with area supervisors to support projects and help prepare pricing proposals for prospective clients

Qualifications & Skills

  • Proficiency in Microsoft Office Suite (Word, Excel, Outlook) and Google Workspace
  • Strong organizational and multitasking skills with the ability to prioritize in a fast-paced environment
  • Experience with office administration tasks such as filing, data entry, and document preparation
  • Familiarity with QuickBooks or other bookkeeping software is a plus
  • Excellent written and verbal communication skills
  • Strong attention to detail and time management skills
  • Knowledge of professional phone and email etiquette
  • Bilingual (English/Spanish) candidates are highly encouraged to apply to support our diverse workforce and client base
  • Previous administrative or clerical experience preferred

Pay

$18–$21 per hour depending on experience

Join a growing company where your organizational skills help keep daily operations running smoothly.

Apply today!

Pay: $18.00 - $21.00 per hour

Experience:

  • Clerical: 1 year (Preferred)

Language:

  • Spanish (Required)

Shift availability:

  • Day Shift (Required)
  • Night Shift (Preferred)

Ability to Commute:

  • Manassas, VA 20109 (Required)

Work Location: In person


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