Executive Assistant to the CEO

Posted Yesterday
Be an Early Applicant
Arlington, VA, USA
In-Office
Senior level
Artificial Intelligence • Information Technology • Robotics • Defense
The Role
Provide high-level executive support to the CEO at a fast-growing startup: manage calendar, prioritize stakeholders, coordinate complex travel, protect confidential information, build systems and processes, coordinate cross-functional logistics (board meetings, offsites), handle expenses and vendors, and respond to evolving urgent tasks with ownership and discretion.
Summary Generated by Built In
About the Role:

We're looking for a battle-tested Executive Assistant to partner directly with our CEO. Someone who has spent years in high-growth, Series A-and-beyond startups and knows what that pace demands. This isn't an entry-level support role. We need someone who has seen productive chaos before, isn't rattled by it, and treats it as raw material to build order from. You'll be the CEO's key asset for managing time, and priorities so nothing important slips and nothing urgent gets missed.

What You'll Do:
  • Own the CEO's calendar end-to-end — ruthlessly prioritizing competing demands across board members, investors, customers, and internal leadership.

  • Anticipate needs before they're asked; you're often three steps ahead, not reacting to the last request.

  • Coordinate complex, fast-changing travel logistics (domestic and international) with zero hand-holding.

  • Act as a trusted gatekeeper and first point of contact for the CEO, managing sensitive and confidential information with discretion.

  • Build and maintain systems —calendars and follow-up loops — that bring structure to a fast-moving, often ambiguous environment.

  • Coordinate cross-functionally with leadership, finance, and People teams on scheduling, offsites, board meetings, and special projects.

  • Manage expenses, vendor relationships, and ad hoc administrative or personal tasks as needed.

  • Jump into whatever fire needs putting out — this role is not static, and the job description will evolve as the company does.

What We're Looking For:
  • 7+ years of experience as an Executive Assistant supporting a C-level executive, ideally a CEO or founder, at a Series B or later venture-backed startup.

  • A proven track record of thriving in high-growth, high-ambiguity environments — you've supported a company through scaling, fundraising, and organizational change.

  • Exceptional judgment and discretion; you can be trusted with highly confidential information without a second thought.

  • Elite organizational skills — you build the systems and processes that don't yet exist, rather than waiting to be told how.

  • Calm under pressure. Ambiguity and last-minute changes don't throw you off; you find the signal in the noise.

  • Excellent written and verbal communication — you can represent the CEO's voice accurately and professionally.

  • A bias toward action and ownership — you solve problems rather than escalate them, and you know the difference between the two.

  • Comfortable working long or unpredictable hours occasionally, and available outside standard business hours when true urgency requires it.

  • Tech-savvy across calendar, travel, communication, and productivity tools (e.g., Google Workspace, Slack, Notion, expense platforms); quick to adopt new tools.

Nice To Have:

  • Experience supporting a CEO through a board cycle, fundraise, or major company milestone (e.g., Series C, IPO prep, acquisition).

  • Background in a fast-paced tech or AI company.

  • Experience managing a small team of support staff or coordinating with other EAs/executive support functions.

Why Join Quartermaster AI

You'll work at the center of the company, with direct visibility into strategy, board dynamics, and how a high-growth company is really built. This role has real influence — the person in this seat helps set the pace and the tone for how the whole leadership team operates.

Skills Required

  • 7+ years of experience as an Executive Assistant supporting a C-level executive, ideally a CEO or founder, at a Series B or later venture-backed startup.
  • Proven track record thriving in high-growth, high-ambiguity environments including scaling and fundraising.
  • Exceptional judgment and discretion handling sensitive and confidential information.
  • Elite organizational skills; ability to build systems and processes proactively.
  • Calm under pressure; able to manage ambiguity and last-minute changes.
  • Excellent written and verbal communication; can represent the CEO professionally.
  • Bias toward action and ownership; solves problems rather than escalating them.
  • Willingness to work long or unpredictable hours occasionally and be available outside standard business hours for true urgency.
  • Experience coordinating complex domestic and international travel logistics independently.
  • Tech-savvy across calendar, travel, communication, and productivity tools (e.g., Google Workspace, Slack, Notion, expense platforms).
  • Ability to act as a trusted gatekeeper and first point of contact for the CEO.
  • Experience supporting a CEO through a board cycle, fundraise, or major company milestone (nice-to-have).
  • Background in a fast-paced tech or AI company (nice-to-have).
  • Experience managing a small team of support staff or coordinating with other EAs/executive support functions (nice-to-have).
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
45 Employees
Year Founded: 2023

What We Do

Quartermaster AI leverages cutting-edge AI and robotics to create distributed open-ocean systems that enhance maritime domain awareness. Their systems enable vessels to sense, compute, and communicate, aiming for a safe and sustainably managed ocean.

Similar Jobs

AvantStay Logo AvantStay

Executive Assistant

Real Estate • Travel
In-Office or Remote
5 Locations
120 Employees
40K-80K Annually

Ronald McDonald House Washington DC Logo Ronald McDonald House Washington DC

Executive Assistant

Kids + Family • Social Impact • Hospitality
In-Office
22031, Fairfax, VA, USA
35 Employees
60K-75K Annually

C3 AI Logo C3 AI

Executive Assistant

Artificial Intelligence • Big Data • Machine Learning • Software
In-Office
Tyson's Corner, VA, USA
923 Employees
150K-250K Annually

Rwazi Logo Rwazi

Executive Assistant

Big Data • Information Technology • Analytics • Business Intelligence
In-Office or Remote
7 Locations

Similar Companies Hiring

Outpost Space Thumbnail
Aerospace • Defense
US
24 Employees
LTX Thumbnail
Robotics • Conversational AI • Generative AI
Jerusalem, Israel
200 Employees
Onshore Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
60 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account