Office Administrator - UniClean

UniFirst; United States; On-site; USD 42,000 - 56,000; Full time

Benefits offered by this job

401K with Company Match

Profit Sharing

Health Insurance

Employee Assistance Program

Life Insurance

Paid Time Off

Direct Payroll Deposit

Tuition Reimbursement

30% Employee Discount

Employee Referral Bonuses

Job summary

UniClean, a division of UniFirst Corporation, seeks an Office Administrator to support daily operations at our Nashua location, handling administrative workflows, AMS tasks, and customer and vendor communications with the location team.

The role requires a high school diploma, 2–4 years of office experience, and proficiency in Word, Excel, PowerPoint and Access. You will assist HR records, process invoices, and manage accounts receivable and purchasing in a fast-moving office.

Qualifications

• High school diploma or equivalent.
• 2-4 years of related administrative, office, or business experience preferred.
• Strong organizational, communication, and time-management skills.
• Proficient in Microsoft Word, Excel, PowerPoint, and Access.
• Comfortable learning UniFirst systems and computer applications.
• Strong written communication skills, including reports and business correspondence.
• Comfortable with financial information and calculations.
• Discretion handling confidential information.
• Ability to manage multiple priorities in a busy office.
• Comfortable sitting/standing for extended periods.

Responsibilities

• Manage daily office activities and support location management.
• Enter orders and maintain accounts in AMS system.
• Communicate with customers and vendors by phone and in person.
• Assist Location Manager with HR records and payroll duties.
• Manage purchase orders for quality and non-quality purchases.
• Process invoices, maintain vendor files, and handle billing.
• Manage accounts receivable and aging targets.
• Coordinate workflow of office staff and support other needs.

Skills

Microsoft Word

Excel

PowerPoint

Access

Organizational skills

Communication skills

Time management

Discretion

Multi-tasking

Payroll knowledge

Education

High School Diploma or GED

2-4 years office/administrative experience

Tools

AMS system

Accounting software

UniFirst systems

Job description

Job Description

Job Description - Office Administrator - UniClean (2605452)

Office Administrator - UniClean - (2605452)

Description

UniClean, a specialized division of UniFirst Corporation, provides cleanroom cleaning and garment services to the pharmaceutical, biotech, semiconductor, electronics, and other controlled environment industries. Our specialized services help customers maintain the strict cleanliness and contamination-control standards required in these critical environments.

We are looking for an Office Administrator to play a key role in the day-to-day operations of our UniClean location. This position supports a broad range of administrative and operational activities, including customer accounts, financial processes, employee administration, and the location management team. Working closely with Team Partners, customers, vendors, and leadership, the Office Administrator helps ensure the location runs smoothly and efficiently.

Responsibilities

• Manage daily office activities and administrative workflow while providing support to the location management team.
• Perform Account Management System (AMS) responsibilities, which may include entering orders, processing customer maintenance, following up with customers, verifying new accounts, and providing administrative support.
• Communicate with internal and external customers by phone and in person, helping address questions and escalating issues to the appropriate member of management when needed.
• Support the Location Manager with human resources activities, including maintaining confidential employee files and required employment records and logs, and performing payroll-related duties as required.
• Manage purchase orders for quality and non-quality related purchases for the location.
• Support financial activities including processing and submitting invoices for approval and payment, maintaining vendor files, customer billing, posting checks and deposits, and ordering general office supplies.
• Manage accounts receivable and collection activities, working toward established aging targets for accounts over 30, 60, 90, and 180 days.
• Help coordinate and direct the workflow of office staff and support other administrative and operational needs as assigned.

Qualifications

• High school diploma or equivalent experience required.
• 2-4 years of related administrative, office, or business experience preferred.
• Strong organizational, communication, and time-management skills.
• Comfortable communicating with Team Partners, customers, vendors, and members of management.
• Proficiency in Microsoft Word, Excel, PowerPoint, and Access.
• Comfortable learning UniFirst systems and computer applications.
• Strong written communication skills, including preparing reports and business correspondence.
• Comfortable working with financial information and performing calculations involving discounts, interest, commissions, percentages, and other business-related figures.
• Demonstrated discretion when handling confidential information.
• Strong organizational skills with the ability to manage multiple priorities and support the workflow of an active office environment.
• Comfortable sitting and/or standing for extended periods, up to approximately eight hours.

Why Join UniClean?

At UniClean, we support industries where cleanliness, quality, and contamination control are essential. We provide specialized cleanroom garments and contamination-control services that help customers maintain clean and controlled environments across industries including pharmaceutical, biotechnology, medical device, semiconductor, electronics, and advanced manufacturing.

UniClean is part of UniFirst Corporation.

UniFirst is a North American leader in the supply and servicing of uniform and workwear programs, facility service products, and first aid and safety supplies. UniFirst helps more than 2 million workers across industries stay safe, productive, and professional. In addition to partnering with leading brands, UniFirst manufactures its own branded workwear, protective clothing, and facility products. Guided by our mission - to serve the people who do the hard work, helping them succeed and deliver for what gives their lives meaning - we are dedicated to Always Deliver™ for our customers, Team Partners, and the communities we serve.

Benefits & Perks

• 401K with Company Match
• Profit Sharing
• Health Insurance
• Employee Assistance Program
• Life Insurance
• Paid Time Off
• Direct Payroll Deposit
• Tuition Reimbursement
• 30% Employee Discount
• Employee Referral Bonuses

Equal Opportunity Employer

UniFirst is an equal opportunity employer. We do not discriminate in hiring or employment against any individual on the basis of race, color, gender, national origin, ancestry, religion, physical or mental disability, age, veteran status, sexual orientation, gender identity or expression, marital status, pregnancy, citizenship, or any other factor protected by anti-discrimination laws.

UniFirst is an equal employment/affirmative action employer. If you need accommodation for any part of the application process because of a medical condition or disability, please send an e-mail to [e-mail] or call to let us know the nature of your request.

Primary Location

United States-New Hampshire

Work Locations

045 - NASHUA - UNICLEAN 35 Sagamore Park Rd Hudson 03051

Organization

Job

Administrative

Employee Status

Regular

Shift

1st Shift

Schedule

Full-time

Job Posting

Oct 8, 2026, 8:38:22 PM

UniFirst Corporation is an EEO/Affirmative Action Employer M-F-Disability-Vet