sebastiancorp
New
$20 - $25 hr DOE/yr

Administrative Assistant

United StatesUnited States·FresnoFull-Timemid
Administrative AssistantAdministration & Office Support
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Quick Summary

Key Responsibilities

Minimum of two (2) years of administrative, customer service, or office support experience. High School diploma, 2 years of college preferred. Strong verbal and written communication skills.

Technical Tools
Administrative AssistantAdministration & Office Support

Sebastian is a premier provider of communications and construction services in California. With more than 70 years of experience, Sebastian is passionate about providing people with a great place to work. Our high growth and dynamic model offers employees the opportunity for career advancement. As a family company, we value the expertise and experience of our team.

 

Job Description:

The Administrative Assistant is responsible for providing administrative and customer service support to ensure the efficient operation of the Customer Service Department. This position serves as a key point of contact for customers, employees, and vendors while assisting with scheduling, work orders, billing support, data entry, and general office administration.



Job Duties:

  • Provide exceptional customer service to internal and external customers.
  • Answer and direct incoming phone calls professionally and courteously.
  • Assist with customer inquiries, service requests, and follow-up communications.
  • Assist with scheduling service appointments and coordinating technician dispatches.
  • Create, update, and maintain customer accounts and service records.
  • Work order, invoice, and job creation including knowledge of appropriate cost codes.
  • Prepare and process work orders, invoices, and related documentation.
  • Enter and maintain accurate data within company software systems.
  • Interact with subcontractors, vendors, and clients by telephone/email to obtain information about prelims, changes, prequalification, and project costs.
  • Obtaining information to complete and mail out preliminary notices in a timely manner.
  • Verify subcontractors' licensing and insurance.
  • Maintain current knowledge of company workflow and procedures.
  • Maintain confidentiality of customer and company information.
  • Maintain electronic and paperless filing systems.
  • Assist in maintaining neat and organized paperless folders in appropriate systems.
  • Support various administrative functions for the Customer Service and Contract Administration Departments.
  • Assist with departmental initiatives, process improvements, and special projects.
  • Ordering, stocking and organizing office supplies, break rooms and conference rooms.
  • Other duties and responsibilities may be assigned as necessary.

 



Job Requirements:

  • Minimum of two (2) years of administrative, customer service, or office support experience.
  • High School diploma, 2 years of college preferred.
  • Strong verbal and written communication skills.
  • Excellent customer service and interpersonal skills.
  • Strong organizational skills with attention to detail.
  • Ability to multitask and prioritize workload effectively.
  • Proficiency in Microsoft Office Suite, including Word, Excel, Outlook, and Teams.
  • Strong data entry and computer skills.

 

Physical, Mental and Environmental Requirements:

  • All requirements may be modified to reasonably accommodate individuals with disabilities. 
  • Ability to sit or stand for extended periods
  • Use of office equipment (typing, filing, phones, etc.)
  • Occasional lifting (up to 20 pounds) and bending
  • Comfortable working in an office setting with potential noise
  • Ability to adapt to a dynamic work environment

 

Compliance:

  • If you need an accommodation as part of the employment process, please contact Human Resources.
  • Sebastian is an Equal Opportunity Employer, including disabled and veterans.
  • If you want to view the Pay Transparency Policy Statement, please click the link: English

 

 

Location & Eligibility

Where is the job
Fresno, United States
On-site at the office

Listing Details

Posted
June 19, 2026
First seen
June 19, 2026
Last seen
June 21, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
63%
Scored at
June 19, 2026

Signal breakdown

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sebastiancorpAdministrative Assistant$20 - $25 hr DOE