Accounting Intern - Summer 2026

Sealing Devices Inc. has been named a 2024 Metro Buffalo Top Workplace—and we’re looking for motivated college students to join our team this summer!

As a Summer Intern, you’ll get hands-on experience working with our accounting and customer service teams. This is a great opportunity to build real-world skills, work with supportive professionals, and see how a top Western New York company operates behind the scenes.

What You’ll Do

You’ll be an important part of our daily operations, helping with tasks such as:

Processing supplier invoices and credit/debit memos in our ERP system

Sending customer invoices and assisting with payment discrepancies

Communicating with customers about credit requests and tax-exempt documentation

Helping organize digital files

Pitching in on a variety of projects and tasks that support our team

This internship is designed to help you learn, grow, and gain meaningful experience that you can carry into your future career.

What We’re Looking For

If you’re a student who is:

Studying a major related to business, accounting, finance, or a similar field

Excited to learn and collaborate with multiple departments

A strong communicator—both written and verbal

Comfortable using Microsoft Office

…we’d love to meet you!

Internship Details

Full-time, 40 hours per week

Paid internship: $16.20 – $18.00/hour, based on experience

Work takes place in a professional office environment

Reasonable accommodations available

Light physical activity (mostly sitting, some walking, lifting under 10 lbs.)

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.