Executive Assistant

Harmattan Ai
Austin, TX
On-site

Who this role is best for

Best suited to candidates with international experience and high-level communication skills working in defense and national security domains.

Best fit for

  • Candidates with experience in high-stakes environments and managing international stakeholders
    — “Coordinate interactions with senior stakeholders, including government, investors, and strategic partners”
  • Individuals with a background in private equity or executive office roles who value discretion and precision
    — “Provide senior-level, strategic EA support across all business and personal priorities”
  • Professionals skilled in multilingual communication and adept at using AI tools for productivity
    — “Draft and manage high-quality communications in both Swiss German and English”

Things to consider

  • The role demands a high level of emotional intelligence and discretion due to sensitive interactions
    — “discretion is paramount, and your impact is direct”
  • Candidates must be highly organized and able to manage complex, evolving calendars
    — “Manage a highly complex and evolving international calendar with strong prioritisation and proactive anticipation”

How to stand out

  • Highlight your ability to anticipate needs and execute with precision in your resume and interview responses
    — “anticipate needs, act with precision, and communicate with confidence at the highest levels”
  • Emphasize your track record in managing international travel and stakeholder coordination
    — “Manage complex international travel planning and logistics”
Pace · Fast PacedCollaboration · MediumAutonomy · MediumDecision Impact · Individual

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • Provide senior-level EA support
  • Manage complex international travel
  • Coordinate interactions with senior stakeholders
Typical background
5-10 years of experience in executive support

Skills & requirements

Required

Executive SupportCalendar ManagementCommunicationTravel PlanningProject CoordinationDiscretion

Preferred

AI Industry KnowledgeHigh-pressure Settings

Stack & domain

Executive SupportCalendar ManagementCommunicationTravel PlanningLogisticsProject ManagementAIProductivity ToolsDiscretionProfessionalismEmotional IntelligenceOrganizationDetail OrientationProactivitySolutions-driven MindsetDefenseNational Security

About the role

Original posting from Harmattan Ai via Ashby

ABOUT US

Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces.

Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected.

About the Role

As Executive Assistant at Harmattan AI, you will serve as a trusted right-hand partner to our founders, ensuring seamless coordination across his priorities, stakeholders, and strategic initiatives. You will be embedded at the heart of a founder-led environment operating at the intersection of advanced technology and national security — where the pace is relentless, discretion is paramount, and your impact is direct.

The C-Suite operates across multiple time zones, engaging daily with government officials, investors, and senior defense stakeholders. This role demands a resilient, solutions-oriented individual who can anticipate needs, act with precision, and communicate with confidence at the highest levels.

Responsibilities

Executive Support

  • Provide senior-level, strategic EA support across all business and personal priorities
  • Manage a highly complex and evolving international calendar with strong prioritisation and proactive anticipation
  • Act as a professional gatekeeper and communication filter, managing inbound requests with sound judgment
  • Prepare briefing materials and ensure preparedness for all engagements
  • Track actions and ensure consistent follow-through across key initiatives

Stakeholder & Communications Management

  • Coordinate interactions with senior stakeholders, including government, investors, and strategic partners
  • Draft and manage high-quality communications in English
  • Build and maintain strong relationships across internal and external networks

Operations & Logistics

  • Manage complex international travel planning and logistics
  • Act as a central point of coordination across business and leadership activities
  • Support ad hoc projects linked to strategic and operational priorities
  • Maintain organization, structure, and efficiency within a fast-moving environment

Candidate Requirements

  • At least 5–10 years of proven experience supporting in a high-performance environment (private equity, private office, or equivalent)
  • Exceptional written and verbal communication skills
  • Strong track record of operating in fast-paced, international, high-pressure settings
  • Outstanding technical capability and confidence using modern productivity tools, including AI
  • Demonstrable ability to manage complexity with precision and sound judgment
  • High levels of discretion, professionalism, and emotional intelligence
  • Highly organized, detail-oriented, and naturally proactive
  • Calm, solutions-driven mindset with the ability to anticipate needs before they arise
  • Excellent, verifiable references

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

Source: Harmattan Ai careers (Ashby)

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