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Polymers Intern Jobs (NOW HIRING)

Summit Polymer

Finance Intern

Portage, MI · On-site

$16.75 - $21.75/hr

Summit Polymers is a leading, global supplier of automotive interior systems including consoles ... Intern, Finance (Treasury) FLSA STATUS: Non Exempt REPORTS TO: Director, Corporate Finance ...

Lyten, Inc.

Polymer Composites Intern

San Jose, CA · On-site

$17.50 - $23.50/hr

The intern will help generate consistent data across multiple material lots and manufacturing ... Coursework in materials science, polymers, composites, mechanical testing, manufacturing ...

Lyten, Inc.

Polymer Composites Intern

San Jose, CA · On-site

$17.50 - $23.50/hr

The intern will help generate consistent data across multiple material lots and manufacturing ... Coursework in materials science, polymers, composites, mechanical testing, manufacturing ...

ZF

Materials Engineering Intern

Livonia, MI · On-site

$15.75 - $20.25/hr

Exposure to diverse material technology types including polymers, metals, tribology, electronics ... Your Profile as Materials Engineering Intern: * Enrolled full-time at an accredited university ...

Teijin Automotive Technologies

Intern

Auburn Hills, MI · On-site

$14.25 - $19/hr

Experience with polymers, coating, microscopy, thin films, nanomaterials and related fields is preferred. * Experience with instruments (FTIR, GC, DMA, SEM) is a plus. * Proficient in Microsoft Excel ...

Teijin Automotive Technologies

Intern

Auburn Hills, MI · On-site

$14.25 - $19/hr

Experience with polymers, coating, microscopy, thin films, nanomaterials and related fields is preferred. * Experience with instruments (FTIR, GC, DMA, SEM) is a plus. * Proficient in Microsoft Excel ...

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As of Jun 4, 2026, the average hourly pay for polymers intern in the United States is $17.04, according to ZipRecruiter salary data. Most workers in this role earn between $14.42 and $19.23 per hour, depending on experience, location, and employer.
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Infographic showing various Polymers Intern job openings in the United States as of May 2026, with employment types broken down into 25% Internship, 42% Full Time, and 33% Part Time. Highlights an 92% In-person, and 8% Hybrid job distribution, with an average salary of $35,436 per year, or $17 per hour.
Finance Intern

Finance Intern

Summit Polymer

Portage, MI • On-site

$16.75 - $21.75/hr

Internship

Posted 9 days ago

Summit Polymers rating

6.1

Company rating: 6.1 out of 10

Based on 36 frontline employees who took The Breakroom Quiz

61st of 78 rated plastic manufacturers

Job description

Summit Polymers is a leading, global supplier of automotive interior systems including consoles, door panels, and instrument panels. With over 50 years serving the industry, we deliver engineering and product excellence to our customers, on time, in budget, with the latest innovations.
JOIN A TEAM WHERE YOU'LL BE CHALLENGED AND valued.
A career with Summit Polymers means working with smart people in a culture that thrives on challenging, meaningful work. At Summit, we look for growth potential with every hire. We don't just fill seats, we set people on career paths. We're always on the lookout for smart people who are committed to continuous improvement, customer service and quality.
JOB DESCRIPTION
JOB TITLE: Intern, Finance (Treasury) FLSA STATUS: Non Exempt
REPORTS TO: Director, Corporate Finance (Treasury)
SUMMARY
As a Finance Intern, you will provide assistance to our Treasury department in day-to-day operations. You will assist the Corporate Finance team in various tasks including coordination of banking documents, completing account reconciliations, and managing intercompany balances.
RESPONSIBILITIES AND DUTIES
  • Coordinate with banking partners and internal leadership to facilitate the completion, execution, and return of documentation requiring authorized signatures.
  • Support the Accounts Payable (AP) and Accounts Receivable (AR) teams in completing monthly account reconciliations and resolving outstanding reconciling items within established timelines.
  • Assist in updating and standardizing policies and procedures for Treasury, AP, and AR functions, including organizing and maintaining supporting documentation.
  • Support the weekly reconciliation of intercompany balances by collaborating with finance teams across multiple regions, analyzing cross-country account activity, and identifying and communicating discrepancies.
  • Assist with the weekly review and reconciliation of suspense accounts related to daily banking transaction activity to ensure accuracy and timely resolution of outstanding items.
  • Support treasury reporting activities, including preparation of cash forecasts, bank fee analysis, and ad hoc financial reporting.
  • Assist with other Finance related projects as needed.

EDUCATION AND EXPERIENCE
Pursuing a degree in Accounting or Finance.
SKILLS AND ABILITIES:
  • Strong communication skills
  • Possesses the ability to gather and analyze information
  • Advanced MS Excel skills
  • Detail oriented
  • Strong organizational skills with the ability to handle multiple projects simultaneously
  • Must be able to work 20+ hours per week
  • A minimum score of 50 on the Wonderlic Contemporary Select Assessment (Traditional score of 20 on the Cognitive portion).

TRAVEL REQUIREMENTS
This position typically does not require any travel.
DISCLAIMER
The information contained in this job description is not intended to be an all-inclusive list of the duties and responsibilities of the job, nor are they intended to be an all-inclusive list of the skills and abilities required to do the job. Management may, at its discretion, assign or reassign duties and responsibilities to this job at any time. Agreement to complete all post-hire required training.
Rev 5/15/2026

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