Crest Industries

Administrative Clerk

Geismar, LA

About This Job

Come join our team at Optimal!

We know a few things about competing with giants and exceeding expectations.

After years of working in the field, our founders decided to break from tradition and build the company they wanted to work for. They believed in starting a company rooted in trust, its team, and the idea that everyone matters and has a part in getting the job done right.

Quickly building a reputation from the ground up and growing the company along with our list of clients, Optimal is now influencing the industry and the people we serve. We live by the values that make us who we are.

And that is how we deliver the impossible for our clients and team members every day.

Optimal Field Services, is looking to add an Administrative Clerk to our team. The Administrative Clerk plays a vital role in supporting the smooth operation of Optimal Field Services’ office and financial activities. This role provides a mix of administrative assistance and accounting support with a primary focus on assisting the AP/AR and Purchasing departments, while also offering support to the hiring and onboarding team.

Essential Duties & Responsibilities:

Accounting & Finance Support

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Assist Accounts Payable (AP) and Accounts Receivable (AR) teams with invoice processing, data entry, and account reconciliation.

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Review and verify financial documents for accuracy and completeness.

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Create, track, and send accurate customer invoices.

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Monitor and follow up on collections and outstanding accounts.

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Support expense reporting: collect receipts, verify coding, and prepare summaries for review.

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Help maintain and update records of unbilled jobs, billing schedules, and payment status.

Purchasing & Vendor Coordination

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Assist the Purchasing Department with order tracking, vendor communications, and maintaining purchase records.

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Help verify and reconcile vendor invoices against purchase orders.

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Support the coordination of materials deliveries and resolve discrepancies with vendors or internal teams.

Administrative Support

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Schedule and organize meetings, events, and conference calls.

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Handle general office duties such as filing, document preparation, supply ordering, and mail distribution.

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Assist with front desk responsibilities including phone system operations: screening and directing calls, taking messages, and routing inquiries.

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Coordinate travel arrangements including flights, accommodations, rental vehicles, and expense documentation.

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Maintain a secure and confidential filing system for all sensitive company and employee information.

Hiring & Onboarding Support

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Assist HR/onboarding team with administrative tasks such as organizing new hire paperwork, coordinating orientation schedules, and managing onboarding checklists.

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Help maintain updated records for employee certifications, contact information, and HR documentation.

Requirements:

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High School Diploma or equivalent required; additional education in business administration or accounting is a plus.

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Proficiency in Microsoft Office Suite (Excel, Word, Outlook) is essential.

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Strong organizational skills and attention to detail.

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Ability to handle confidential information with discretion.

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Excellent written and verbal communication skills.

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Ability to multitask and adapt to shifting priorities in a dynamic work environment.

Stop relying on contractors who over promise, under deliver, and do not care about your success. Instead, experience the Optimal difference. Build your team with us and know you have experienced craftsmen who have your back and can deliver.

Optimal Field Services is an affirmative action and equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.

Optimal Field Services is committed to providing access, equal opportunity and reasonable accommodation for individuals with disabilities in employment, its services, programs, and activities. To request information regarding reasonable accommodation, contact your Human Resource Business Partner.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information. 41 CFR 60-1.35(c)

Part of the CREST INDUSTRIES family of companies.

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