Office Administrator
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Job Location:
Irvine, CA - USA
Monthly Salary:
Not Disclosed
Posted on:
5 days ago
Vacancies:
1 Vacancy
Job Summary
Office Administrator (Part-Time)
Confidential Client Design & Consulting Firm
Location: Irvine CA (Onsite Hybrid Office Environment MWF)
About the Opportunity
A well-established boutique design and consulting firm is seeking a detail-oriented and proactive Office Administrator to support day-to-day operations financial administration and client coordination.
This is a high-impact hands-on role supporting a collaborative team of professionals across multiple active projects. The organization operates in a project-based professional services environment (similar to architecture engineering and interior design firms) where billing invoicing and client coordination require a high degree of accuracy and organization.
This role is ideal for someone who thrives in a dynamic fast-paced environment enjoys working independently and takes pride in keeping operations running smoothly.
Position Overview
The Office Administrator will be responsible for managing core office operations financial processes and administrative functions with a strong emphasis on project-based invoicing bookkeeping and coordination across multiple stakeholders.
This individual will serve as a central point of coordination across leadership employees clients and vendors ensuring that administrative financial and operational workflows are executed efficiently.
Key Responsibilities
Financial & Billing Operations
Office Operations & Administration
Employee & HR Coordination
Client & Vendor Coordination
Project & Systems Support
Qualifications
Preferred
Key Success Traits
Work Schedule & Compensation
Why This Role
Confidential Client Design & Consulting Firm
Location: Irvine CA (Onsite Hybrid Office Environment MWF)
About the Opportunity
A well-established boutique design and consulting firm is seeking a detail-oriented and proactive Office Administrator to support day-to-day operations financial administration and client coordination.
This is a high-impact hands-on role supporting a collaborative team of professionals across multiple active projects. The organization operates in a project-based professional services environment (similar to architecture engineering and interior design firms) where billing invoicing and client coordination require a high degree of accuracy and organization.
This role is ideal for someone who thrives in a dynamic fast-paced environment enjoys working independently and takes pride in keeping operations running smoothly.
Position Overview
The Office Administrator will be responsible for managing core office operations financial processes and administrative functions with a strong emphasis on project-based invoicing bookkeeping and coordination across multiple stakeholders.
This individual will serve as a central point of coordination across leadership employees clients and vendors ensuring that administrative financial and operational workflows are executed efficiently.
Key Responsibilities
Financial & Billing Operations
- Manage project-based invoicing across 100 active projects with varying billing structures and timelines
- Process invoices using internal systems (including BillQuick and QuickBooks)
- Track project phases billing percentages and client-specific invoicing requirements
- Record and reconcile incoming payments including check deposits and system updates
- Support payroll coordination and basic bookkeeping functions
Office Operations & Administration
- Oversee daily office operations including mail supplies and general organization
- Maintain office systems and ensure operational continuity in a hybrid work environment
- Coordinate internal processes documentation and administrative workflows
- Support leadership with scheduling reporting and operational needs
Employee & HR Coordination
- Assist with employee benefits administration (PTO tracking insurance coordination 401k support)
- Provide general personnel coordination and administrative support
- Help onboard new employees and support internal communications
Client & Vendor Coordination
- Serve as a professional and responsive point of contact for clients and vendors
- Manage communications related to billing documentation and project coordination
- Ensure all client interactions reflect a high level of professionalism and service
Project & Systems Support
- Maintain accurate records across multiple platforms (BillQuick QuickBooks Microsoft Office etc.)
- Support project tracking documentation and reporting across various phases
- Assist with expense tracking and reimbursement processes tied to client projects
Qualifications
- 35 years of experience in an Office Administrator Office Manager or similar role
- Experience in project-based professional services environments (architecture engineering interior design consulting preferred)
- Strong experience with:
- QuickBooks
- Project-based billing/invoicing
- Highly detail-oriented and organized with the ability to manage multiple priorities
- Strong written and verbal communication skills with a client-first mindset
- Ability to work independently in a hybrid/low-occupancy office environment
Preferred
- Experience with BillQuick or similar time & billing platforms
- Familiarity with Bluebeam or industry-specific tools
- Exposure to payroll systems (e.g. ADP)
- Experience supporting multi-entity or project-driven businesses
Key Success Traits
- Extremely detail-oriented (critical for project billing accuracy)
- Proactive and solution-oriented
- Strong interpersonal and client communication skills
- Positive team-oriented mindset (make a friend culture)
- High level of accountability and ownership
Work Schedule & Compensation
- Part-Time: Approximately 2030 hours per week
- Schedule: Typically 3 days onsite (flexible structure)
- Compensation: Competitive hourly rate (commensurate with experience; market-aligned)
- Pay Schedule: Semi-monthly
- Paid Time Off (PTO) and sick leave
- Paid holidays including extended holiday time during the Christmas/New Year period
- Eligibility for medical benefits (based on hours worked and tenure)
- 401(k) eligibility (based on service requirements)
- Collaborative team-oriented environment with strong tenure and client relationships
Why This Role
- Opportunity to play a critical role in a growing highly respected firm
- High visibility with leadership and direct impact on operations
- Exposure to complex project-based business operations
- Stable organization with long-standing client relationships and strong reputation
Required Experience:
Manager
About Company
Talley, LLP is the premier consulting and financial services firm dedicated to advising high-net-worth individuals and their closely-held entities with strategic business solutions that deliver meaningful results.
