Executive Assistant

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 both Swiss German and 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.

Employment type
FullTime

Work arrangement
No