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Harmattan AI · Lausanne, Vaud, Switzerland

Executive Assistant

full timePosted today
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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 French 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 organisation, 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)

- Fully bilingual in French and English, with 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 organised, detail-oriented, and naturally proactive

- Calm, solutions-driven mindset with the ability to anticipate needs before they arise

- Comfortable working on-site in Paris with flexibility across working hours and time zones

- Eligibility to work in France; security clearance requirements may apply given the nature of the organisation

- Excellent, verifiable references

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

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