Executive Assistant to the CEO — Communications & Gatekeeper

C3.ai, Inc.; Redwood City (CA); Hybrid; USD 150,000 - 250,000; Full time

Job summary

C3 AI in Redwood City, CA, is seeking an Executive Assistant to join the Office of the CEO. You will triage, draft, and manage the CEO’s communications across email, memos, and other correspondence, acting as a trusted extension of the CEO’s voice and ensuring follow-through on commitments.

This role requires availability during early morning and late evening hours to align with the CEO’s rhythm. You will coordinate with the broader CEO Office, route context to internal owners, and handle highly

Qualifications

• 7+ years of experience in an Executive Assistant, communications, or chief-of-staff-adjacent role supporting a C-suite executive.
• Exceptional written communication; ability to write in another person’s voice across registers.
• Outstanding judgment on tone, priority, and audience.
• Meticulous attention to detail and follow-through.
• Availability during early morning and late evening hours, including global time zones.
• High EQ and professional poise; comfortable with Board members, executives, investors, and customers.
• Fluent with Microsoft 365 and modern AI tools; Claude experience preferred.
• Absolute discretion and integrity handling confidential information.

Responsibilities

• Inbound Triage: Monitor inbound communications to the CEO across email and other channels throughout the day. Read, categorize, and prioritize messages from executives, Board members, customers, investors, partners, and employees.
• Drafting and Correspondence: Draft replies, follow-ups, memos, and outbound communications on the CEO’s behalf in the CEO’s voice.
• Follow-Through: Track commitments made by the CEO, ensure responses and next steps are completed within expected timelines.
• Coordination with the CEO Office: Partner closely with the broader CEO Office team to ensure communications-driven actions are reflected across calendar, meetings, and other executive workflows.
• Information Routing: Capture context from communications and pass it cleanly to the right internal owner.
• Confidentiality: Handle highly sensitive business, strategic, and executive information with absolute discretion at all times.

Skills

Executive support experience

Written communication

Judgment and discretion

Attention to detail

Time management

Cross-functional collaboration

EQ and professionalism

Tools

Microsoft 365

Claude AI

Job description

C3 AI in Redwood City, CA, is seeking an Executive Assistant to join the Office of the CEO. You will triage, draft, and manage the CEO’s communications across email, memos, and other correspondence, acting as a trusted extension of the CEO’s voice and ensuring follow-through on commitments.

This role requires availability during early morning and late evening hours to align with the CEO’s rhythm. You will coordinate with the broader CEO Office, route context to internal owners, and handle highly