Lead Office Administrator

Lead Office Administrator / Senior Executive Assistant

Vantor is forging the new frontier of spatial intelligence, helping decision makers and operators navigate what's happening now and shape what's coming next. Vantor is a place for problem solvers, changemakers, and go-getterswhere people are working together to help our customers see the world differently, and in doing so, be seen differently. Come be part of a mission, not just a job, where you can: Shape your own future, build the next big thing, and change the world.

Vantor is seeking a world-class Lead Office Administrator / Senior Executive Assistant to serve as a true force multiplier for the CEO and executive leadership. This is a high-impact role for a professional who thrives in fast-paced, mission-critical environments and takes pride in enabling leaders to operate at their highest level.

The ideal candidate takes pride in helping others perform at their best and thrives in a collaborative team environment. They excel at managing seamless workflows behind the scenes while delivering visible, meaningful impact. They bring structure to complex situations and create clarity in execution.

Key Responsibilities:

• Optimizing time, eliminating low-value tasks, and protecting high-impact priorities (strategy, hiring, innovation).
• Preparing clear, actionable briefings with context and trade-offs; ensure follow-through on decisions.
• Filtering incoming issues, resolve where possible, and escalate appropriately while tracking to completion.
• Enforcing purpose, agendas, and preparation; capturing outcomes and ensuring accountability for next steps.
• Building and maintaining scalable workflows for planning, prioritization, communications, and travel.
• Reinforcing priorities, managing stakeholder expectations, and handle sensitive interactions with professionalism.
• Using approved AI and productivity tools to streamline workflows while maintaining accuracy and confidentiality.
• Coordinating end-to-end candidate experience, scheduling, and executive briefings.
• Planning detailed, contingency-ready travel with minimal executive involvement.
• Anticipating workload pressures and proactively manage cadence to maintain effectiveness.
• Partnering with EAs and cross-functional teams to standardize processes and improve executive office efficiency.

Minimum Qualifications:

• Must be a U.S. Citizen
• Bachelor's degree preferred or equivalent experience
• 10+ years as an Executive Assistant, including 5+ years supporting C-level executives (CEO/ELT preferred); experience in fast-paced, high-trust environments.
• This position requires working on-site at least three days per week.
• Must work with composure to ensure the Executive Assistant team is cohesive, cooperative, trusting and accountable for all C-level needs.
• Operates independently with strong decision-making within defined guardrails.
• Proven ability to proactively manage time, priorities, and risks before they surface.
• Demonstrated success managing complexity, driving execution, and ensuring follow-through.
• Exceptional written and verbal skills; able to produce clear, executive-ready materials.
• Trusted with highly sensitive information; maintains the highest level of integrity and professionalism.
• Past success operating in ambiguity and rapidly changing environments with composure and effectiveness.
• Advanced proficiency with Microsoft 365, Teams, Concur, Workday, and modern collaboration tools.
• Experience with or strong interest in leveraging AI to improve productivity while maintaining quality control.
• Understands how executive support drives broader organizational outcomes.