Part-Time Receptionist / Office Administrator

Part-Time Receptionist / Office Administrator (MWF On-Site) San Francisco · 24 hours/week Who We Are RS Construction is a family-owned heavy-civil contractor based in San Francisco, building concrete and utility infrastructure that keeps the Bay Area moving. As we grow and professionalize our operations, we need a reliable, detail-driven Administrative Assistant to keep the front office running smoothly three days a week. What You’ll Do Area Key Tasks

• Front Desk & Phones
• Greet visitors, clients, and field crews with a friendly, professional manner.
• Answer and route incoming calls; take clear, complete messages when staff are unavailable.
• Mail & Deliveries
• Accept FedEx/UPS/Amazon and USPS mail, verify counts, and log every inbound/outbound item in our delivery spreadsheet.
• Prepare FedEx/UPS shipments and arrange same-day pickups when needed.
• Accounting Support
• Tag invoices for coding in QuickBooks (no coding required).
• Match credit-card charges to receipts and flag any discrepancies.
• Office Inventory & Admin
• Monitor supplies (water service, printer paper, coffee, basic PPE) and place timely re-orders.
• Keep the front office, copy area, and supply shelves tidy and stocked.
• General Team Support
• Print and bind plan sets, scan documents, and update simple Excel/Google Sheets trackers.
• Pitch in on occasional event setups or ad-hoc clerical projects.

Schedule & Pay

• Hours: Mondays, Wednesdays, Fridays • 8:00 a.m.–5:00 p.m. (24 hrs/week)
• Duration: Open-ended; minimum three-month commitment preferred
• Compensation: $20–$26 per hour + paid sick leave per SF ordinance

What You’ll Bring

• Experience: 1-2 years in an office, reception, or customer-service role
• Skills: Solid MS Office; basic Excel formulas
• Detail Orientation: Proven habit of double-checking data, names, and numbers
• People Skills: Clear phone voice, upbeat attitude, and calm under interruptions
• Bonus Points: Familiarity with QuickBooks or other accounting software; experience in construction, logistics, or mailroom work; bilingual English/Spanish

Why RS Construction

• Impact You Can See – Your work supports crews who build the roads and utilities your neighbors rely on.
• Small-Team Culture – Work directly with the COO, project managers, and field leaders - no corporate silos.
• Growth Opportunity – Learn construction-office fundamentals and expand into bookkeeping or project admin as your interests grow.
• Stable Schedule – Predictable M-W-F hours leave Tuesdays and Thursdays free for school, family, or a side hustle.

RS Construction is an equal-opportunity employer and welcomes applicants from all backgrounds.