Administrative Assistant Tax Jobs in Riverside, CA

38-hour Workweek | Half Day Every Friday

Compensation: $55,000 – $70,000 (commensurate with experience, and qualifications)

For over five decades, Brown & Streza has been a trusted Orange County law firm serving high-net-worth families, closely held businesses, and charitable organizations in sophisticated practice areas such as estate planning, business planning, complex income tax, mergers and acquisitions, and the charitable sector.

We are honored to have been named a 2025 Top Workplace by the Orange County Register and a 2026 Best Place to Work by the OC Business Journal, distinctions based on confidential employee feedback.

We are currently seeking an Administrative Assistant to support our Business, and Tax, Trusts, and Estates departments. This position is a floating role responsible for assisting multiple attorneys and staff with various administrative duties, including providing coverage for employees who are on vacation, out sick or on leave.

This role requires exceptional customer service skills, strong time management abilities, and meticulous attention to detail. The ideal candidate will thrive in a fast-paced legal environment, handle competing priorities with professionalism, and contribute to the efficient operation of the department.

If you value precision, enjoy engaging with clients, and are eager to grow your career in a firm that prioritizes professional development and invests in its people, we would welcome the opportunity to meet you.

• Assist with coverage for administrative assistants, file clerks, and paralegals who are out of the office
• Provide heavy calendaring support for attorneys, including scheduling and managing complex appointments
• Coordinate with internal departments to confirm meetings and ensure scheduling accuracy
• Complete billing entry and expense reports for attorneys
• Communicate professionally with clients via phone and email
• Create, update, and maintain database records with a high level of accuracy
• Prepare routine correspondence and administrative documents
• Help prepare documents for client meetings
• Update project lists and spreadsheets
• Prepare flow charts for clients to depict project details
• Assist with document production, formatting, and organization

What You'll Bring

Required

• Minimum one year of administrative experience in a law firm or office environment
• Excellent administrative, verbal, and written communication skills
• Strong attention to detail with a high degree of accuracy
• Exceptional customer service skills and a professional demeanor
• Excellent time management and organizational abilities, with the capacity to manage multiple priorities
• Accurate typing skills and prior experience with Windows and Microsoft Office applications
• Ability to operate standard office equipment, including computers, photocopiers/scanners, and fax machines

Preferred

• Two years of experience as an Executive Assistant, Administrative Assistant, or Legal Secretary in a law firm setting
• Experience working with document management systems and CRM platforms
• College degree

What We Offer

Health & Wealth

• Five medical plans — three with an employer-funded HSA
• Dental and vision coverage
• 401(k) with significant employer matching
• Employer-paid life and disability coverage
• Employee Assistance Program (EAP)
• Access to additional supplemental insurance plans

Time & Flexibility

• 38-hour workweek with a half day on Fridays
• Hybrid work schedule (after successfully completing 90 days of employment)
• Eleven paid holidays annually

Culture & Community

• Recognized as a 2025 Top Workplace by the Orange County Register
• Named a 2026 Best Place to Work by the OC Business Journal
• "Raving Fan" service culture grounded in seven core values
• Weekly team lunches and monthly birthday celebrations
• Firm-sponsored events (e.g., Administrative Professionals Day, Summer Party, Harvest Luncheon, Holiday Party)
• Employee recognition program and in-office massage offerings

Your Day-to-Day (Irvine office)

• Newly remodeled office space with state-of-the-art technology
• Newly remodeled on-site gym, complimentary for employee use
• Courtyard, lounge, and café within the office complex
• Convenient on-site services, including dry cleaning, auto detailing, and car wash
• Complimentary snacks and refreshments
• Catered lunch provided every Tuesday

Ready to grow your career at an award-winning firm?

Apply through the link below — we carefully review every application and will follow up regarding next steps.

Equal Opportunity Statement

Brown & Streza, LLP is an Equal Opportunity Employer that does not discriminate on the basis of actual or perceived race, color, creed, religion, national origin, ancestry, citizenship status, age, sex or gender (including pregnancy, childbirth, pregnancy-related conditions, and lactation), gender identity or expression (including transgender status), sexual orientation, marital status, military service and veteran status, physical or mental disability, genetic information, or any other characteristic protected by applicable federal, state, or local laws and ordinances.