JOB DETAILS

Administrative Assistant

CompanySuperior Electrical, Mechanical & Plumbing, Inc.
LocationRancho Cucamonga
Work ModeOn Site
PostedAugust 14, 2026
About The Company
Superior is a full-service, multi-licensed contractor serving commercial and industrial accounts locally as well as nationwide. We specialize in all areas including new construction, tenant improvement, remodels and design / build in addition to 24-hour emergency service and scheduled maintenance. The convenience of working with one contractor for all your construction, service and maintenance needs not only saves time, it saves money. Superior's specialty teams work together to insure your project runs smoothly. Superior: more than a name. It's our company philosophy.
About the Role

Description

Superior Electrical, Mechanical & Plumbing, Inc. (SEMP) is a statewide leader in commercial skilled trade services, delivering high-quality electrical, mechanical, and plumbing solutions throughout California. We are seeking a detail-oriented Administrative Assistant to support our Purchasing Department. This role is responsible for processing data entry, maintaining accurate purchasing records, and providing administrative support to help ensure efficient day-to-day departmental operations.


The ideal candidate is organized, dependable, and highly attentive to detail, with the ability to manage multiple priorities in a fast-paced environment. Experience with commercial plumbing materials and supplies is highly preferred.


Schedule

  • Monday - Friday 8 a.m. to 4:30 p.m. 

Responsibilities

  • Accurately enter and maintain purchasing data in company databases and audit systems 
  • Audit reports, verify purchase orders, and track deliveries to ensure accuracy and timely fulfillment 
  • Provide administrative and clerical support to the wholesale purchasing team 
  • Maintain accurate and detailed records of orders, pricing, and inventory updates 
  • Communicate effectively with suppliers, service technicians, and internal departments to resolve discrepancies and address purchasing-related inquiries 
  • Monitor outstanding orders and follow up on pending items to ensure timely completion 
  • Assist with departmental projects and perform other duties as assigned by the supervisor

Requirements

  • Previous administrative, purchasing, or data entry experience within the construction industry is preferred 
  • Knowledge of commercial plumbing materials, supplies, and terminology highly preferred
  • Proficiency in Microsoft Office, including Outlook, Word, and Excel a 
  • Ability to type a minimum of 40 WPM alphanumerically
  • Proficient in proofreading and auditing with strong attention to detail 
  • Ability to communicate professionally with suppliers, service technicians, and internal departments 

About the Company

Superior Electrical, Mechanical & Plumbing, Inc. is a commercial service and construction company with over 20 years of experience delivering high-quality electrical and plumbing solutions across California and other states. Our team is committed to reliability, safety, and strong customer partnerships while supporting projects that keep businesses and facilities running efficiently.


Benefits

Superior EMP offers competitive compensation and a benefits package that includes:

  • Medical insurance
  • Employee-only 401(k) retirement contributions
  • Supplemental insurance options
  • Paid sick leave and vacation time
  • Opportunities for professional development and career growth

Superior Electrical, Mechanical, and Plumbing, Inc. does not accept unsolicited resumes or outreach from third-party recruiters or agencies. Unsolicited emails, calls, or submissions will not be considered.

Key Skills
Data entryPurchasingRecord keepingInventory managementMicrosoft OfficeOutlookWordExcelProofreadingAuditingCommunicationCommercial plumbing knowledgeConstruction industry knowledgeTyping
Categories
AdministrativeConstructionLogistics
Benefits
Medical insurance401(k) retirement contributionsSupplemental insurancePaid sick leavePaid vacation timeProfessional development
Job Information
📋Core Responsibilities
The Administrative Assistant will process data entry, maintain purchasing records, and audit purchase orders to ensure accuracy. They will also provide clerical support to the wholesale purchasing team and communicate with suppliers and internal departments.
📋Job Type
full time
💰Salary Range
$18 - $24
📊Experience Level
0-2
💼Company Size
138
📊Visa Sponsorship
No
💼Language
English
🏢Working Hours
40 hours
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