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Part Time Accounting Assistant (20-24 hours per week)

Optimax Systems Inc.
Ontario, NY Part Time
POSTED ON 11/4/2026
AVAILABLE BEFORE 12/4/2026

Accounting Assistant

Fully Onsite

Part-time (20-24 hrs/week); A-shift, 9am-2pm (flexible)

Optimax is experiencing exciting growth and expanding our team! We are seeking an Accounting Assistant at all skill levels. Whether you are starting your career or looking for a new challenge, we offer a dynamic work environment, opportunities for advancement, and the chance to contribute to creating cutting-edge optics for a wide range of industries. Apply now and start your career journey with Optimax!

 

A unique corporate culture combined with a dynamic work environment:

At Optimax, we build lenses that power cutting-edge technologies in aerospace, defense, and consumer electronics. Our optics help shape breakthroughs that benefit humanity and protect our freedom. We offer a dynamic and collaborative work environment where innovation and teamwork thrive. We are looking for motivated individuals who are eager to learn, grow, and contribute to impactful projects.


The Accounting Assistant is responsible for assisting with basic bookkeeping and accounting tasks, with an opportunity to grow within a growing company. This role reports directly to the CFO. 


Through On the Job Training the part time Accounting Assistant, will:

  • Create and reconcile accounts payable invoices and identify discrepancies
  • Weekly review and matching of payments to payables
  • Participate in monthly Finished Goods Inventory Purge process
  • Review and enter cash receipts on a timely basis
  • Performs other ad hoc related duties as assigned
  • Knowledge, Skills, and Abilities: 
  • Proficiency with Microsoft Office Suite, especially Excel and Outlook.
  • Knowledge of ERP systems and basic bookkeeping procedures
  • Good math skills and the ability to spot numerical errors
  • Excellent verbal and written communication skills
  • Excellent interpersonal skills and positive attitude
  • Excellent organizational skills and attention to detail
  • Ability and willingness to learn
  • Ability to work within a team dynamic 
 Education Requirements: 
  • Minimum of two years’ experience in the corporate setting; some accounting knowledge preferred
  • Experience within a manufacturing environment a plus

 Work Requirements:

Physical Demands:

  • While performing the duties of this job, the employee is frequently required to sit, stand, walk, talk and hear.
  • The job may involve prolonged periods of sitting and computer work.
  • This position works in an office environment within a manufacturing facility. The noise level is generally quiet.
  • Generally works in a clean environment and works to maintain the environment as such.


Compensation and Benefits: As a part time role, this job is not eligible for benefits. To the extent this employee works more than 1,000 hours in a 12 month period or 500 hours in two consecutive years, they would be eligible to participate in the company’s 401(k) program and earn the company match (Currently 50% of contributions up to 6% of eligible wages).


Equal Opportunity Employer: Optimax is committed to offering equal opportunity for all candidates. We encourage you to apply regardless of background, race, religion, gender, sexual orientation, age, disability, veteran status, or any other protected characteristic. Optimax will make reasonable accommodations for known physical or mental limitations of otherwise qualified employees and applicants with disabilities unless the accommodation would impose an undue hardship on the operation of our business. 

ITAR Compliance: Employment at Optimax Systems, Inc. is subject to export control compliance requirements, including the International Traffic in Arms Regulations (ITAR) issued by the United States Department of State, Department of Defense Trade Controls, and the Export Administration Regulations. Learn more about the ITAR here. To meet export control compliance requirements for this position, an applicant must be a “U.S. Person” as defined by applicable regulations or be eligible to obtain the required authorizations from the U.S. Department of State. “U.S. Person” includes a U.S. Citizen, lawful permanent resident, refugee, or asylee.


 If you require an accommodation to apply for this position, please contact our Human Resources team at 585-265-1020.

 


Salary : $20 - $25

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