Instrumentation Technical Services (ITS), a wholly owned subsidiary of Applied Technical Services, LLC (ATS), is a West Chester, PA-based provider of calibration, metrology, and instrumentation services serving highly regulated industrial markets throughout North America. For more than 30 years, ITS has helped customers improve compliance, quality, reliability, and operational performance through accredited laboratory services, field calibration, automation support, and technical expertise.
ATS is a leading provider of critical testing, inspection, certification, and compliance services. ATS serves clients across a diverse set of large and stable end markets including manufacturing, power generation, aerospace, medical, and defense. ATS was founded in 1967 and is headquartered in Marietta, GA. Today the Company employs nearly 2,100 team members in over 95 locations across the United States.
Together, Instrument Technical Services and ATS advance a shared mission to create a safe and reliable world through precise technical and professional services.
Job Title: Administrative Assistant – Calibration Department
Well established Calibration and Inspection service organization in West Chester, PA is seeking an Administrative Assistant for a full-time position.
Benefits include competitive compensation, 401K + company match, medical, dental, vision, short term and long-term disability, company paid life insurance, quarterly bonus opportunity, tuition reimbursement, paid holidays, and a paid time off/vacation package, and MORE!. ATS is a drug free environment.
The responsibilities include:
- Data entry into computer database from Lab Travelers and Field Service Reports. Print/ scan calibration certificates, shippers and invoice reports.
- Scanning and/or mailing customer invoices.
- Receiving vendor invoices and matching purchase order and packing slips.
- Outsourcing equipment to Vendors
- Accounts payable/ receivable data entry, posting and processing vendor invoices for payment.
- Scan file folders, renaming and storing to appropriate software databases.
- Filing as needed.
- Maintain computer software recall databases.
- Preparing quotes and correspondence and other documents
- Able to communicate with clients daily, Project coordinator for a couple of our large customers.
- Onsite scheduling
- Reviewing files and invoicing customers according to their purchase order requirements.
- Shipping and receiving equipment in and out of the office as needed.
- Assist with other administrative duties as needed.
- Assist customer with status of equipment information.
Skills, Abilities and Experience:
- 3 to 5 years’ administrative experience; or shipping/receiving experience desired.
- Proficient in Microsoft Office -Word & Excel; Data Entry Knowledge; Typing Skills
- High level of attention to detail on paperwork and equipment
- Ability to continually self-evaluate the accuracy of your work.
- Ability to focus on routine tasks in a busy fast-paced environment.
- Demonstrated ability to follow written and verbal instructions.
- Demonstrated mechanical aptitude to recognize different types of equipment.
- A willingness to work occasional overtime is required.
Education:
- High School Diploma or equivalent.
- Bachelor’s degree preferred but not required.
- Shall provide their own cell phone with data plan for connection to ATS email and multi-factor authentication.
U.S. Persons” Only: A requirement of this position is access to information that is subject to U.S. export controls under the U.S. International Traffic in Arms Regulations (“ITAR”). Accordingly, the company will consider only “U.S. Persons” for this position. A “U.S. Person” includes (a) U.S. citizens or nationals; (b) U.S. lawful permanent residents (i.e., “green card” holders); (c) persons granted refugee status; or (d) persons granted asylum in the United States. This information is collected solely for purposes of complying with U.S. export control requirements and will not be used to unlawfully discriminate in the hiring process.
EOE/AA/M/F/Vet/Disability
Applied Technical Services is an equal opportunity employer where employment is based upon personal capabilities and qualifications without discrimination due to race, color, religion, gender, age, national origin, disability, veteran status or any other protected characteristic as established by law.
Skills Required
- 3 to 5 years of administrative experience or shipping and receiving experience
- Proficiency in Microsoft Office, including Word and Excel
- Data entry knowledge
- Typing skills
- High attention to detail with paperwork and equipment
- Ability to evaluate work accuracy
- Ability to focus on routine tasks in a busy, fast-paced environment
- Ability to follow written and verbal instructions
- Mechanical aptitude to recognize different types of equipment
- Willingness to work occasional overtime
- High school diploma or equivalent
- Bachelor's degree
- Provide a personal cell phone with data plan for ATS email access and multi-factor authentication
- U.S. Person status due to ITAR export-control access
Applied Technical Services (ATS) Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Applied Technical Services (ATS) and has not been reviewed or approved by Applied Technical Services (ATS).
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Healthcare Strength — Core medical, dental, vision, and life insurance are provided, with additional coverages listed as employer-verified. Feedback suggests the health benefits package is comprehensive on paper.
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Retirement Support — A 401(k) retirement plan with an employer match is offered. Feedback suggests this delivers baseline support for long-term savings even though exact match details are not publicly posted.
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Strong & Reliable Incentives — Field roles often include per diem, mileage reimbursement, and paid travel time that add tangible value to take-home pay. Feedback suggests these extras can meaningfully boost total compensation in travel-heavy assignments.
Applied Technical Services (ATS) Insights
What We Do
Applied Technical Services (ATS) is a premier provider of high-quality consulting engineering, testing, and inspection services, focused on creating a safer and more reliable world through testing, inspection, and certification.







