Executive Assistant, Office of the CIO jobs in United States
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Onebrief · 2 weeks ago

Executive Assistant, Office of the CIO

Onebrief is a collaboration and AI-powered workflow software company focused on military staffs. They are seeking a highly organized and proactive Executive Assistant to support the CIO by managing the CIO's operating rhythm, communication, and project tracking to ensure efficient decision-making and alignment across the organization.

Information TechnologyMilitaryProductivity ToolsSoftware

Responsibilities

Own the CIO’s calendar and operating rhythm, ensuring meetings have clear purpose, deep-work time is protected, and weekly/monthly cadences run smoothly
Manage communication and context across Slack, Notion, and email, drafting updates, summarizing meetings, and ensuring decisions and next steps are captured clearly
Maintain the CIO’s project dashboard, tracking milestones, risks, owners, and follow-through across multiple cross-functional initiatives
Act as a coordination hub and CIO proxy, aligning stakeholders, managing vendor and partner interactions, and ensuring expectations and timelines remain clear
Create and maintain operational structure, including weekly CIO syncs, daily briefs, board/investor prep, compliance reviews, and ongoing initiative updates

Qualification

Executive support experienceProject managementCommunication skillsSlack proficiencyNotion proficiencyGoogle Workspace proficiencyOperational instinctsHigh integrityDiscretionProfessionalismAnticipation

Required

3–7+ years in an Executive Assistant, Chief of Staff, Program Coordinator, or Operations role supporting a senior technical leader (or equivalent experience in a high-complexity environment)
Exceptional written and verbal communication, especially in translating complex details into concise, actionable summaries
Strong operational instincts: organization, prioritization, project tracking, and an ability to proactively identify gaps and blockers
High comfort working in tools like Slack, Notion, and Google Workspace; experience maintaining project dashboards or documentation systems
A mindset of ownership, anticipation, and partnership; someone who sees around corners and stays one step ahead
High integrity, discretion, and professionalism when handling sensitive information
Willingness and ability to travel 20-25%
Must be based in US Central Time

Preferred

Experience working in defense technology, cybersecurity, or related industries

Company

Onebrief

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Onebrief is an AI-powered platform that supports operational planning, collaboration, and decision workflows for military and command teams.

Funding

Current Stage
Late Stage
Total Funding
$311.04M
Key Investors
Battery VenturesHuman Capital
2026-01-13Series D· $200M
2025-06-16Series C· $23.58M
2025-01-28Series C· $50M

Leadership Team

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Grant Demaree
CEO and co-founder
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Rafa Pereira
Co-founder and CTO
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Company data provided by crunchbase