Accounting Intern​/Co-op; R20244

Day in Your Life at MKS:

As an Accounting Co-op/Intern at MKS Inc.’ Optical Sensing Products (OSP) division, you will support daily accounting activities and learn how financial processes work in a real business environment and complete hands‑on tasks throughout your term. This internship provides an excellent opportunity to build practical accounting skills and gain exposure to Accounts Payable, Accounts Receivable, and month‑end activities. In this role you will report the Accounting Manager

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As an Accounting Co-op/Intern at MKS Inc.’ Optical Sensing Products (OSP) division, you will support daily accounting activities and learn how financial processes work in a real business environment and complete hands‑on tasks throughout your term. This internship provides an excellent opportunity to build practical accounting skills and gain exposure to Accounts Payable, Accounts Receivable, and month‑end activities. In this role you will report the Accounting Manager

Intern/Co-op Term:
This is 4-month internship/co‑op position. Candidates must be available for the entire duration of the assignment.

• Intern/co‑op within a functional area of MKS that provides students a comprehensive and engaging experience from before your program starts to after the program ends.
• Meaningful work and project assignments
• Networking opportunities with peers and executives
• Exposure to different divisions of the business
• Understanding of MKS Instruments’ commitment to inclusion and belonging.

• Support process Accounts Payable including invoice entry, coding verification, PO matching, and preparing items for payment
• Support Accounts Receivable by creating customer invoices, recording payments, and assisting with aging reviews
• Reconcile accounts by comparing system balances, identifying variances, and preparing supporting documentation
• Maintain accurate financial records within ERP systems and shared accounting folders
• Assist with month‑end close including data validation, report extraction, and JE support tasks
• Support audit documentation by organizing backup files and retrieving required records
• Contribute to process improvements in AP, AR, and data‑entry workflows

• Enrolled in a Bachelor’s Degree program in Accounting, Business Administration, or a related major
• Basic understanding of accounting concepts such as AP, AR, debits, and credits
• Good attention to detail when entering numbers or checking documents
• Comfort using Excel for sorting, filtering, and simple formulas
• Willingness to learn ERP or accounting software with training
• Ability to spot mistakes and ask questions when something looks off
• Clear communication skills when working with the accounting team
• Good organization skills for handling paperwork and digital files

• Excellent time management skills and commitment to meet deadlines
• Excellent communication and technical writing skills
• Ability handling of discreet, sensitive confidential financial information

• Global Employee Assistance Program
• Additional Flex Day Off with Spending Allowance
• Transit Zone 1 Reimbursement
• Active Social Committee Programs

Hourly Pay Rate: $25.00 per hour. This rate is a reasonable expectation of pay for this position, based on a range of factors including qualifications, experience, education, training, operational and business needs and other considerations