Executive Assistant/Office Manager

THE OPPORTUNITY

The Executive Assistant / Office Manager is the operational heartbeat of GSI's Westminster headquarters. You are not a passive scheduler — you are a force-multiplier for the executive team, anticipating what's needed, resolving friction before it surfaces, and ensuring that every leader you support can operate at their highest level. Simultaneously, you are the first impression visitors, vendors, and new employees have of GSI. That impression must be excellent.

This is a high-trust, high-visibility role. You will handle sensitive information, make judgment calls on behalf of executives, coordinate across departments, and manage a physical environment that reflects GSI's culture of precision and professionalism. You will be expected to own your domain completely — not wait to be told what to do.

WHAT YOU'LL OWN

Executive Support

• Manage complex, multi-executive calendars — anticipating conflicts, protecting strategic work time, and prioritizing with business context, not just chronology
• Plan and orchestrate internal and external meetings end-to-end, including agendas, logistics, follow-up, and documentation
• Screen, triage, and respond to communications on behalf of executives — exercising independent judgment on urgency and routing
• Handle sensitive financial documents and confidential information with absolute discretion; identify patterns and surface relevant insights to the executive team
• Drive and contribute to strategic research projects — not just gathering data, but synthesizing it into actionable recommendations
• Proactively identify roadblocks to executive effectiveness and resolve them before they escalate

Office & Facilities Management

• Serve as the primary point of contact for all headquarters facility matters — repairs, improvements, building communications, and vendor coordination
• Manage inventory and procurement of office and kitchen supplies; maintain a headquarters environment that reflects GSI's standards
• Greet guests and visitors with professionalism; manage access control and badge programming in the building security system
• Coordinate with IT to ensure office and desk configurations are always ready for employees and visitors
• Manage all incoming and outgoing deliveries (FedEx, UPS) and maintain conference room readiness
• Coordinate with the People's Team on company events, team-building activities, and employee engagement initiatives
• Ensure daily replenishment of beverages and hospitality supplies — owning the small details that shape a great culture

Cross-Functional & Ad Hoc

• Execute special projects with the autonomy and resourcefulness of someone who doesn't need hand-holding
• Support ad hoc administrative requests across teams with a bias toward speed and quality

QUALIFICATIONS

Required

• 2+ years of direct executive support to two or more C-suite leaders — not just calendar management, but genuine strategic partnership
• Exceptional organizational and time-management skills with a demonstrated ability to juggle competing priorities without dropping the ball
• Superior written and verbal communication — clear, concise, and calibrated to audience
• Advanced proficiency in Microsoft Office Suite and calendar/scheduling tools (Outlook, Google Workspace, or equivalent)
• Unimpeachable discretion with confidential information; this is non-negotiable
• High self-directedness — you drive outcomes, not activity; you don't need to be managed, you need to be pointed
• Professional, polished presence that reflects well on GSI in every interaction — internal or external

Strongly Preferred

• 1+ years of facilities or office management experience
• Bachelor's degree or equivalent career progression that demonstrates intellectual horsepower and professional growth
• Experience in a fast-scaling, high-performance company — construction, engineering, infrastructure, or field-services industries a significant plus
• Demonstrated ability to support executives across multiple time zones or geographies