Administrative Assistant Jobs in Port Costa, CA

1-15 of 164 Jobs

Per Diem Administrative Assistant

  • Surgery Partners
  • Walnut Creek, CA (13 miles from Port Costa, CA)
  • moments ago
  • Walnut Creek, CA (13 miles from Port Costa, CA)
  • moments ago

GENERAL SUMMARY OF DUTIES : Provides support to administrative office staff assuring a smooth departmental work flow. Responsible for performing daily tasks such as copying, scanning, data entry,...

In Person

Administrative Assistant

  • DaVita
  • Oakland, CA (18 miles from Port Costa, CA)
  • 1 hour ago
  • Oakland, CA (18 miles from Port Costa, CA)
  • 1 hour ago

Here is what you can expect when you join our Village as an Administrative Assistant: A community first, company second culture based on Core Values that really matter....

In Person

Part-time Tax Preparer/Administrative Assistant

  • Berkeley, CA (12 miles from Port Costa, CA)
  • 1 hour ago
  • Berkeley, CA (12 miles from Port Costa, CA)
  • 1 hour ago

North Berkeley attorney (solo-practitioner) specializing in tax and estate planning is looking for part-time tax preparer / administrative assistant to support the office during the upcoming tax season...

In Person Part Time

Experienced Civil Litigation Legal Secretary Wanted

  • Walnut Creek, CA (13 miles from Port Costa, CA)
  • 1 hour ago
  • Walnut Creek, CA (13 miles from Port Costa, CA)
  • 1 hour ago

We represent nice people, for the most part, and have extensive experience representing this community in a wide variety of civil matters including litigation, real estate, evictions, family law, contracts...

In Person

Landscape Administrative Assistant, Bilingual - Richmond

  • Rubicon Programs
  • Richmond, CA (12 miles from Port Costa, CA)
  • 3 hours ago
  • Richmond, CA (12 miles from Port Costa, CA)
  • 3 hours ago

The Administrative Assistant provides comprehensive administrative and clerical support to ensure the efficient and effective operation of Rubicon Landscape Services....

In Person

Senior Office Assistant - Collections

  • Contra Costa Water District
  • Concord, CA (11 miles from Port Costa, CA)
  • 7 hours ago
  • Concord, CA (11 miles from Port Costa, CA)
  • 7 hours ago

Contra Costa Water District (CCWD) is an innovative leader in water management and provides employees with a fast-paced and stable work environment that encourages professional growth and...

In Person

Pupil Services Administrative Assistant - District Office (0.5 FTE)

  • Moraga Elementary
  • Moraga, CA (15 miles from Port Costa, CA)
  • 12 hours ago
  • Moraga, CA (15 miles from Port Costa, CA)
  • 12 hours ago

Ability to interact with a wide range of situations and personalities professionally and effectively Experience in an administrative assistant position, preferably in a school setting....

In Person

Administrative Assistant to the Principal - Bacich Elementary School

  • Kentfield Elementary
  • Kentfield, CA (20 miles from Port Costa, CA)
  • 13 hours ago
  • Kentfield, CA (20 miles from Port Costa, CA)
  • 13 hours ago

Kentfield School District See attachment on original job posting Letter of Interest Resume Three current Letters of Recommendation Refer to the job posting for a list of required skills or if you...

In Person

Administrative Assistant

  • AppleOne
  • Benicia, CA (4 miles from Port Costa, CA)
  • 17 hours ago
  • Benicia, CA (4 miles from Port Costa, CA)
  • 17 hours ago

This Administrative Assistant Position Features: Competitive Hourly Pay Full-time Schedule Supporting Project-based Operations We are looking for a detail-oriented Administrative Assistant to provide...

In Person

Receptionist/Administrative Assistant

  • Larkspur, CA (19 miles from Port Costa, CA)
  • 17 hours ago
  • Larkspur, CA (19 miles from Port Costa, CA)
  • 17 hours ago

Assistant to join our Larkspur office....

In Person Full Time

Administrative Assistant III

  • Lawrence Berkeley National Laboratory
  • Berkeley, CA (12 miles from Port Costa, CA)
  • 17 hours ago
  • Berkeley, CA (12 miles from Port Costa, CA)
  • 17 hours ago

Lawrence Berkeley National Laboratory is hiring an Administrative Assistant III for the NERSC division....

Hybrid

Office Assistant

  • SOM
  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago
  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago

At SOM, we are a collective committed to shaping a better future for our clients, communities and planet. We aspire to create the most sustainable, impactful work through creative,...

In Person

Hospital Assistant 3 (Administrative Assistant)

  • The University of California, San Francisco
  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago
  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago

Performs and / or supervises one or more general and specialized clerical and administrative services essential to the operation of all University departments; and perform other related duties as...

In Person

Law Library Administrative Assistant (Part-Time)

  • San Rafael, CA (17 miles from Port Costa, CA)
  • 1 day ago
  • San Rafael, CA (17 miles from Port Costa, CA)
  • 1 day ago

Law Library Administrative Assistant (part-time 20 hours/week), Marin County Law Library Duties: Works under the supervision of the Law Library Director....

In Person Part Time

Office Assistant at Skidmore, Owings & Merrill (SOM)

  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago
  • San Francisco, CA (22 miles from Port Costa, CA)
  • 1 day ago

Please apply here: * At SOM, we are a collective committed to shaping a better future for our clients, communities and planet. We aspire to create the most sustainable, impactful work through...

In Person

Administrative Assistant Online Courses and Training Opportunities

iHire curates thousands of courses in order to recommend the best ones to help further your career. If you register for a course using the links on our site, we may receive a small commission.
Leadership and Administrative Policy
Understand and develop your own leadership style, while also coaching teams to promote individual growth and improve organizational outcomes. Also, explore important issues in health law for...
Administrative Assistant Training
How well you manage clients and other day-to-day workplace activities can significantly impact your company's overall performance. As an administrative assistant, you must adapt quickly and...
Online Administrative Assistant Certification
Sign up for the ExpertRating Online Administrative Assistant Certification, and boost your career prospects. In a sea of seemingly equally qualified job applicants, a certification can help you...

Salary for Administrative Assistant Jobs in Port Costa, CA

Estimated salary range based on data from US Bureau of Labor Statistics (BLS) and iHire research efforts.

Licensing / Certification

Required or preferred licenses and certifications for Administrative Assistant positions.



Highest Education Level

Administrative Assistants in Port Costa, CA offer the following education background
Bachelor's Degree
36.3%
High School or GED
18.4%
Associate's Degree
16.1%
Vocational Degree or Certification
14.9%
Master's Degree
8.9%
Some College
3.7%
Doctorate Degree
1.2%
Some High School
0.5%

Average Work Experience
Here's a breakdown of the number of years' experience offered by Administrative Assistants in Port Costa, CA
1-2 years
44.2%
Less than 1 year
30.3%
None
13.6%
2-4 years
10.1%
4-6 years
1.9%