Executive Assistant to the CEO

Brimstone•Truckee, CA

5d•Onsite

About The Position

Founded in 2019, Brimstone is an innovative industrial startup with a proprietary, efficient, and deeply decarbonized process for producing Ordinary Portland Cement. We’re now growing our all-star team of sharp, mission-driven, collaborative professionals as we continue to refine our process and move towards construction of our first production facilities. Position Overview We are seeking a highly organized, proactive, and detail-oriented Executive Assistant to support the CEO. This role is critical to ensuring the CEO can operate efficiently in a fast-paced environment. The ideal candidate thrives on managing complex schedules, executing projects, anticipating needs, and keeping priorities organized. This role requires someone who is highly dependable, adaptable, and able to manage both professional and occasional personal administrative tasks with discretion and professionalism. This position requires you to be in or a commutable distance from Truckee, CA.

Requirements

2–7+ years of experience as an Executive Assistant supporting senior executives or founders
Exceptional organizational and time management skills
Ability to manage multiple priorities in a fast-paced environment
Strong written and verbal communication skills
Highly proactive with strong problem-solving abilities
Ability to maintain confidentiality and professionalism
Proficiency with productivity tools such as Microsoft Office, Asana, Slack, and calendar management tools

Responsibilities

Manage the CEO’s calendar, including scheduling meetings, travel, and events across multiple priorities and time zones
Prepare meeting agendas, briefing materials, and follow-up action items
Screen and prioritize communications including email, calls, and requests
Coordinate internal and external meetings with senior leaders, partners, and stakeholders
Track and help drive key projects and initiatives on behalf of the CEO
Ensure deadlines and deliverables are met by coordinating across teams
Organize documents, reports, and presentations needed for decision-making
Assist in preparing presentations, board materials, and executive reports
Arrange travel itineraries, accommodations, and logistics
Maintain organized systems for files, notes, and key information
Assist with planning company meetings, offsites, and events
Handle confidential information with discretion
Support personal administrative needs for the CEO (scheduling appointments, errands, etc.)
Coordinate and manage contractors
Help manage scheduling conflicts between personal and professional commitments