Executive Assistant to Chief of Staff (Global)

About the role

Alta Ares is a fast‑scaling deep‑tech startup building real‑time AI for defence operations. As Executive Assistant to the Chief of Staff, you will act as the operational right‑hand, ensuring the executive team moves at maximum speed across multiple time zones.

Key responsibilities

• Own the Chief of Staff’s agenda: schedule, prioritise, and coordinate with internal and external stakeholders.
• Prepare briefing notes, meeting summaries, and follow‑up tracking for high‑stakes meetings.
• Draft and proofread correspondence, presentations, and internal documents on behalf of the Chief of Staff.
• Support the broader executive team with logistics, board meetings, investor calls, and leadership committees.
• Manage complex multi‑stakeholder calendars across Paris, Kyiv, NYC, and UAE.
• Coordinate executive travel, including flights, accommodation, visas, and itineraries.
• Track cross‑functional projects, maintain action logs, decision trackers, and dashboards in Notion.
• Assist in planning company‑wide events such as All‑Hands, offsites, and quarterly reviews.
• Draft internal and external communications and manage relationships with institutional partners, defence clients, investors, and government officials.

Required profile

• Proactive, resourceful, and highly trusted with confidential information.
• Exceptional organisational skills and ability to protect high‑value time.
• Comfortable operating in a fast‑moving, multi‑timezone environment.
• Strong written communication skills for briefing notes and executive correspondence.
• Ability to liaise effectively with engineering, sales, finance, HR, and operations teams.

Required skills

• Notion

What we offer

• Opportunity to work at the forefront of AI‑driven defence technology.
• Dynamic, international environment with offices in Paris, Kyiv, NYC, and Athens.
• Fast‑track career growth in a high‑impact startup.