22 project assistant jobs at 20 companies in Windsor, CA

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Assistant Project Manager
St. Helena, California, United States
$64k-$85k/yr OnsiteFull Time
ENFRA
ENFRA: Provider of energy infrastructure and Energy-as-a-Service solutions.
0+ YOE0-2 years field experience; proficiency with Microsoft Word and Excel; ability to read construction plans and specifications; knowledge of construction technology, scheduling, equipment and methods; craft supervision experience; strong communication and attention to detail.
Microsoft Word, Microsoft Excel
1mo
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Assistant Project Manager - Residential Construction
Mill Valley, California, United States
$120k-$145k/yr OnsiteFull Time
Van Acker Construction
Van Acker Construction: Constructs and maintains high-end custom residential estates.
8+ YOEBachelor's degree in accounting/finance/construction fields; 8+ years in construction finances; strong computer skills; in-office role; local candidate.
Excel, Google Docs, Adobe, Box, Dropbox, Timberline, Sage 300
1mo
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Healthcare Assistant Superintendent - OSHPD
Vallejo or Sandy
$120k-$140k/yr OnsiteFull Time
STO Building Group
STO Building Group: Provides comprehensive commercial construction and project management services globally.
2+ YOEBachelor's in construction management or equivalent experience; 2+ years on ground-up healthcare projects (OSHPD preferred); knowledge of codes, blueprints, subcontractor scopes; BIM360 experience; strong communication and problem-solving.
BIM360
1w
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Assistant Director
Fairfield, California, United States
$28/hr OnsiteFull Time
Learning Care Group
Learning Care Group: Providing early childhood education and childcare services through multiple brands.
1+ YOEMust be 21+, high school diploma or equivalent, meet state education requirements, minimum 1 year working in a licensed childcare facility and prior leadership experience.
2w
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Assistant Superintendent - Construction
Santa Rosa, California, United States
$75k-$95k/yr OnsiteFull Time
Phase 3 Construction
Phase 3 Construction: Provides commercial general contracting and tenant improvement construction services.
5+ YOEMinimum 5 years as an Assistant Superintendent (or 10 years as a Foreman). Valid CA driver’s license, OSHA-30 and CPR/First Aid (can be completed after hire). Experience with ProCore, Microsoft Project, and Microsoft Office preferred.
ProCore, Microsoft Project, Microsoft Office
2mo
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Taco Bell Assistant Manager
Rohnert Park, California, United States
OnsiteFull Time
Diversified Restaurant Group
Diversified Restaurant Group: Operator of quick-service restaurant franchises including Ta Bell.
2+ YOERestaurant leadership experience; 18+; English proficient; ServSafe certification; reliable transportation; clear background check; 45-hour work week with flexible availability.
1w
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Assistant Parks Planner
Santa Rosa, California, United States
$82k-$110k/yr OnsiteFull Time
City of Santa Rosa
City of Santa Rosa: Provide municipal services and public infrastructure to the community
2+ YOETwo years planning experience, bachelor’s degree in planning/landscape architecture/related field, knowledge of park planning and CEQA, experience with grant administration, GIS desirable, and strong written and verbal communication.
Microsoft Word, Microsoft Excel, Microsoft PowerPoint, GIS
2mo
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Assistant Program Director
Vacaville, California, United States
$32-$35/hr OnsiteFull Time
Turning Point Community Programs
Turning Point Community Programs: Delivers mental health and social services to California communities.
4+ YOE1+ MgmtBachelor’s degree in social work or psychology; four years in a community program; at least one year in management/supervision; California driver’s license and vehicle insurance/registration.
2mo
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Assistant Manager
Cloverdale, California, United States
$23-$23/hr OnsiteFull Time
Equity LifeStyle Properties
Equity LifeStyle PropertiesNYSE: ELS: Owns and operates manufactured home communities and RV resorts.
3+ YOEBachelor’s degree or equivalent experience; 3+ years on-site property management; customer service; scheduling; MS Office; multi-project management; valid driver’s license.
Microsoft Office, Financial systems, Email
3w
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SENIOR ADMINISTRATIVE ASSISTANT
San Rafael, California, United States
OnsiteFull Time
Marin County Office of Education
Marin County Office of Education: Provides administrative and educational support services to Marin County schools.
Providing administrative support to assigned administrators and departments, maintaining records, coordinating projects, exercising independent judgment, and compiling/distributing materials and reports.
3d
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Administrative Assistant I
San Rafael, California, United States
$65k-$77k/yr OnsiteFull Time
County of Marin
County of Marin: Provides essential public services and infrastructure to county residents.
1+ YOEProvide front-office administrative support, prepare Board materials, manage calendars, greet visitors, draft reports and perform varied clerical and project tasks; fingerprint background check required.
1w
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Showroom Administrative Assistant - Mill Valley
Mill Valley, California, United States
$29-$33/hr OnsiteFull Time
The Shade Store
The Shade Store: Retailer and manufacturer of custom window treatments.
1+ YOE1–3 years retail/sales/project management/customer service experience; proficiency with Microsoft Outlook, Teams, and CRM; associate's degree preferred; strong communication, organization, and customer-service skills.
Microsoft Outlook, Microsoft Teams, Salesforce, NetSuite
2w
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TK Instructional Assistant at Santa Rosa Charter for the Arts (.625 FTE- 5 hours/day) #4788
Santa Rosa, California, United States
OnsitePart Time
Santa Rosa City Schools
Santa Rosa City Schools: Operates public schools and educational programs in Santa Rosa.
High school diploma or equivalent; experience or training in early childhood education; ability to assist with instructional activities, work with small groups or one-to-one, communicate effectively, and prepare classroom projects. Considered essential worker in emergencies.
2w
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2026 Mill Valley Film Festival Assistant Theater Operations Manager
San Rafael, California, United States
$1k/wk HybridFull Time, Seasonal
California Film Institute
California Film Institute: Promotes film arts through festivals, education, and cinema exhibition.
Supervisory experience in event or venue operations, strong organization and communication, proficiency in Asana, Excel, Word, FileMaker Pro, Google Workspace; reliable transportation and smartphone; availability nights and weekends during festival.
Asana, Microsoft Excel, Microsoft Word, FileMaker Pro, Google Workspace
2w
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Part-Time Personal Assistant (Family Office)
Sebastopol, California, United States
$50-$75/hr OnsitePart Time
BakerAvenue
BakerAvenue: Provides wealth management and investment advisory services to high-net-worth clients.
5+ YOE5+ years PA/EA experience (family office or private household preferred), valid driver’s license and reliable transportation, strong organization, discretion, communication, and ability to manage household projects, errands, meal prep, and admin tasks.
1mo
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Assistant Manager Events
St Helena or Napa
$26-$34/hr OnsiteFull Time
Treasury Wine Estates
Treasury Wine EstatesASX: TWE: Produces and distributes premium and luxury wine brands globally.
2+ YOE2–3 years events/hospitality experience, people-management preferred, valid California driver’s license, ability to lift up to 40 lbs and stand long periods, wine and food knowledge, strong organizational and presentation skills.
2w
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Assistant/Associate Engineer
Corte Madera, California, United States
$8k-$11k/mo OnsiteFull Time
Central Marin Police Authority
Central Marin Police Authority: Provides law enforcement services to several Marin County communities.
2+ YOEBachelor's in civil engineering, valid Class C California driver's license; Assistant: 2 years civil engineering experience; Associate: 3 years experience and EIT required. Experience with plan review, inspections, project management, CAD/GIS.
AutoCad, CAD, GIS
1mo
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Events & Community Operations Coordinator
Corte Madera, California, United States
$30-$35/hr OnsitePart Time
Hale Akua Garden Farm & Eco-Retreat Center
Hale Akua Garden Farm & Eco-Retreat Center: Operates a certified organic farm and educational wellness retreat.
Organize and coordinate events, support presenters, manage registration and participant communications, maintain databases, assist with marketing outreach; strong communication, organization, and project management skills required.
Constant Contact, Mailchimp, Canva, Google Workspace, Microsoft Office
3w
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Assistant Engineer / Associate Civil Engineer
Healdsburg, California, United States
$99k-$152k/yr OnsiteFull Time
City of Healdsburg
City of Healdsburg: Municipal government providing public services to the Healdsburg community.
0+ YOEPerforms professional civil engineering work for public works CIP and private development including design, plan review, site investigation, inspection, construction administration, and project management. Bachelor’s in engineering required; Associate level requires 3 years and CA professional civil engineer registration.
1mo
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Sales Specialist - Seasonal - Santa Rosa
Santa Rosa, California, United States
$18-$23/hr OnsiteSeasonal
Friedman’s Home Improvement
Friedman’s Home Improvement: Independent retailer of home improvement products and building supplies.
High school diploma required; retail experience preferred. Must assist customers, qualify needs, close project sales, use store computer systems, and lift/move up to 50 lbs. Proficiency with Microsoft Office is preferred.
Microsoft Word, Microsoft Excel, Microsoft Outlook, Microsoft Teams, pallet jacks, forklifts, order pickers, saws