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Welcome to Sen Plex Corporation and its subsidiaries Oahu Air Conditioning Service, Inc., Oahu Plumbing and Sheet Metal, Ltd., and Oahu Air Conditioning Company. With offices on Oahu, Hawaii, Maui, and Kauai, we are the leaders in commercial mechanical construction and service.

The words quality and excellence are synonymous with Sen Plex Corporation and its employees. We pride ourselves with providing our employees an environment that is ideal for the development, safety and the well being of each employee. Our commitment to our employees, customer service, and trade makes us proud to have served Hawaii for over 60 years.

Sen Plex Corporation Is An Equal Opportunity / Affirmative Action Employer.

Available Positions

Maintenance Helper - All Islands

Job Duties:
Maintenance Helpers are responsible for providing effective and efficient service of air conditioning equipment to our customers. With supervision, Maintenance Helpers must be able to service, assist with troubleshooting and doing light repair for all air conditioning and ventilation equipment.

Prerequisites:
Ideal candidates possess basic knowledge of air conditioning equipment. Knowledge of duct cleaning and technical school in related field is highly desirable. Customer service is an integral part of our business, therefore the Maintenance Helper must be able to communicate and relate to all our clientele in a professional manner.

Billing Specialist - Oahu

Job Duties:
The Billing Specialist will accurately prepare billing and credit memos, verify cost and pricing, generate reports in a timely manner, process credit card payments and resolve any discrepancies/disputes.

Prerequisites:
The ideal candidate will have an associate degree in accounting, one year billing and customer service experience, be proficient in Microsoft Office products and is able to use a 10 key by touch. Experience in Sage Timberline and Service Works a plus. Excellent written and verbal communication and a positive attitude is required. Candidates must reside on Oahu and be eligible to work in the United States.

Accounting Manager - Oahu

Job Duties:
The Accounting Manager will be responsible for the management and supervision of the Accounts Payable and Accounts Receivables department, reconciliation of related GL and bank accounts, and development of policies and procedures to improve efficiency and accuracy. This role also serves as a consultant for managers within the organization advising them of current budgetary information and working with managers to create a fiscal strategy that aligns with the goals of the organization.

Prerequisites:
The ideal candidate will have a Bachelor in Accounting or Finance, 5+ years of related experience, at least 3 years of managerial experience, a solid understanding of GAAP, and experience with Sage Timberline. This position requires a highly motivated self-starter who can manage multiple assignments, effectively prioritize responsibilities, is proficient in Microsoft Office and Adobe Acrobat, with excellent written and verbal communication skills. Construction accounting experience is highly desirable.

Accounts Payable Clerk - Oahu

Job Duties:
The Accounts Payable (AP) Clerk will be responsible for the proper allocation of expense to the correct GL and cost center. The AP clerk will contact vendors to resolve discrepancies and follow up as needed.

Prerequisites:
The ideal candidate will have an Associate degree in Accounting, a strong work ethic, be detail oriented and be able to produce high quality results. We are looking for a candidate who has one year of accounting experience, is proficient in Microsoft Office and has excellent written and verbal communication skills. Candidates must reside on Oahu and be eligible to work in the United States.

Project Engineer - Oahu

Job Duties:
The Project Engineer (PE) will take ownership of their projects from the estimating phase all the way through project completion. The PE will prepare HVAC estimates, coordinate project design and ensure proper implementation resulting in quality service and/or product. The PE will also be responsible for all Project Manager duties for their projects.

Prerequisites:
The PE should have a Bachelors in Engineering, 5+ years of HVAC experience and project estimating experience. Ideal candidates will have a firm understanding of Trade Standards and Practices, building codes and the bid process. They should be able to read and understand specifications, architectural and mechanical plans, have excellent time management skills and the proven ability to meet all required deadlines. Excellent verbal and written communication skills required.

Contracting Support Specialist - Oahu

Job Duties:
The Contracting Support Specialist will support the Project Managers in producing comprehensive construction reports, filings and documents. This positon will also be responsible for researching procurement opportunities, coordinating bid proposals, creating work orders, jobs folders and other administrative duties.

Prerequisites:
The ideal candidate will have experience working in a fast paced construction or engineering office, have excellent time management skills and is able to work independently, while managing multiple projects simultaneously. We are looking for an individual who values teamwork, is proficient in Microsoft Office, Adobe Acrobat and 10 key by touch. Sage Timberline experience is desired.

Construction Project Administrator - Oahu

Job Duties:
The Construction Project Administrator will review contract documents to ensure that contractual obligations are met, prepare all project reports and communication, update software programs and use sound judgement when making project decision. This position will also be responsible for complying with application department policies, procedures, rules and regulations.

Prerequisites:
The ideal candidate will hold a Bachelor’s degree, 3+ years of experience in the construction industry, possess a strong background in construction management and knowledge of construction terminology. Excellent time management skills, proficiency in Microsoft Office products, and 10 key by touch is required. Experience with Sage Timberline software is desired.

Featured projects

OACS and OPSM are full-service mechanical companies specializing in all types of commercial heating, ventilation, air conditioning, plumbing, and sheet metal services. Here are a few of the projects we have worked on: