AI-Driven Administrative Assistant — Irvine

TriNet; Irvine (CA); Hybrid; USD 62,000 - 93,000; Full time

Benefits offered by this job

Medical, dental, and vision plans

Life and disability insurance

401(k) savings plan

Employee stock purchase plan

11 company holidays

PTO and leave program

Job summary

TriNet in Irvine, CA is seeking an Administrative Assistant to support multiple leaders and departments with high-volume, standardized tasks powered by AI, maintaining accuracy and efficiency.

You will manage calendar scheduling, travel logistics, expense reports, and procurement while ensuring policy compliance and clear communication across teams. A minimum of 2–4 years in administration and an associate degree offer a strong foundation for growth within the company.

Qualifications

• Associate’s degree preferred.
• 2–4 years of related experience.

Responsibilities

• Expense Report Management: process, reconcile, and submit expense reports.
• Travel Coordination: book domestic and international travel and provide itineraries.
• Purchasing & Procurement: execute purchasing requests and reconcile purchase cards.
• Distribution Lists Management: manage email distribution lists across departments and leadership teams.
• Reporting & Documentation: generate routine reports and maintain documentation for administrative processes.
• Assist in creation of SOPs, intranet page.
• Coordinates travel and special projects as requested.
• General administrative work: heavy calendaring, policy-compliant purchasing, and documentation updates.
• Act as point of contact in Irvine for administrative professionals and workplace services.
• Proactively manage outstanding action items and follow through on requests.

Skills

Customer service

Organized

Discretion/confidentiality

Process improvement

Attention to detail

Communication

Adaptability

Team collaboration

Education

Associate's degree preferred

Tools

Microsoft Office Suite

Teams

OneDrive

OneNote

Job description

TriNet in Irvine, CA is seeking an Administrative Assistant to support multiple leaders and departments with high-volume, standardized tasks powered by AI, maintaining accuracy and efficiency.

You will manage calendar scheduling, travel logistics, expense reports, and procurement while ensuring policy compliance and clear communication across teams. A minimum of 2–4 years in administration and an associate degree offer a strong foundation for growth within the company.