Executive Assistant

Particle Measuring Systems • Niwot, CO

12d • Onsite

About The Position

Particle Measuring Systems is a global leader for micro-contamination monitoring equipment improving the performance of clean manufactures in the semiconductor and pharmaceutical industries. We’re a growing technology company in Niwot, Colorado, the heart of the Rocky Mountains. We offer an exceptional and rewarding work environment in a great place to live. Our employees enjoy challenging projects in the development and manufacture of light scattering particle counters and diverse technologies and applications. We are looking for a Executive Assistant who will contribute to the success of the Executive Team, applying their expertise in administrative to support the achievement of team and company goals and deliver innovative, reliable solutions. In this role, the successful candidate will collaborate effectively with colleagues and cross-functional teams, demonstrate strong problem-solving and decision-making skills, and maintain a commitment to professional excellence, quality and continuous improvement.

Requirements

• Demonstrated experience supporting multiple senior executives in a complex, fast-paced environment, with exceptional calendar management and organizational skills.
• Strong business acumen, including commercial and financial fluency sufficient to understand organizational priorities, key performance measures, strategic objectives, and stakeholder relationships.
• Excellent judgment and initiative, with the confidence to anticipate needs, challenge or clarify requests, prioritize effectively, and recommend trade-offs in executive time.
• Strong meeting-management and synthesis skills, including agenda preparation, executive readiness, note-taking, decision capture, and translating discussions into clear actions and next steps.
• Exceptional attention to detail, ownership, and follow-through, including the ability to obtain timely responses and escalate issues diplomatically.
• Excellent written and verbal communication skills, strong relationship-building ability, and a high degree of professionalism and discretion.
• Ability to remain calm, flexible, and highly organized while managing changing priorities and competing demands.
• Strong AI fluency and curiosity, with demonstrated ability to use generative AI and other productivity tools to work more efficiently, synthesize information, and improve executive support.
• Strong proficiency with Microsoft 365 and collaboration/action-management tools such as Teams, Excel, Loop, Planner, Facilitator, or similar platforms.
• 5+ years of experience as an Executive Assistant
• Must be professional, poised, detail-oriented, highly organized, a self-starter, dependable, able to multi-task and manage competing priorities.
• Must have excellent written and verbal communication skills.
• Must have excellent customer-service skills.
• Must have excellent time-management skills.
• Must be able to thrive in a fast paced, start-up environment.
• Must be able to identify and solve problems independently.
• Advanced proficiency with Word, PowerPoint, Excel, email (preferably Gmail) as well as other technology (project management apps, etc.)
• Previous experience in a mid-size company
• United States work authorization required.

Nice To Haves

• Experience in a private equity-backed company or an environment undergoing significant growth, transformation, or organizational change.
• Experience supporting finance, strategy, or other enterprise leadership functions.
• Experience coordinating board, investor, or other high-stakes leadership meetings and materials.
• Bachelor’s degree preferred.

Responsibilities

• Own and proactively manage complex executive calendars, travel, expenses, and logistics, coordinating with senior leaders, external partners, candidates, and other key stakeholders.
• Use business priorities and a brief weekly planning review with each executive to align calendars with top priorities, upcoming decisions, preparation requirements, and commitments.
• Look several weeks and months ahead to identify conflicts, travel demands, and preparation needs, and proactively protect focused working time.
• Protect executive capacity by evaluating meeting purpose, urgency, participants, and required executive involvement; within agreed decision rights, decline, defer, shorten, or redirect requests as appropriate.
• Coordinate executive and leadership meetings, ensuring clear objectives, appropriate participants, defined decisions or outcomes, and effective preparation.
• Proactively gather and organize pre-reads, relevant background, stakeholder input, and outstanding questions so executives arrive prepared to contribute and make decisions.
• Capture concise, decision-oriented records, including key context, decisions, actions, owners, priorities, and deadlines.
• Track key actions, follow up with accountable owners, and elevate unclear ownership, unresolved decisions, stalled commitments, or emerging issues while maintaining clear accountability for business delivery.
• Serve as a trusted extension of the executives, anticipating needs and connecting priorities, meetings, decisions, actions, and deadlines to reduce unnecessary executive effort.
• Within agreed boundaries, screen incoming requests and communications, routing or resolving matters that do not require executive attention.
• Prepare executive communications, concise briefings, planning documents, meeting materials, and other supporting information.
• Handle sensitive and confidential information with professionalism and discretion.
• Maintain a forward-looking calendar of key business milestones—including financial reviews, strategy and board cycles, value creation reviews, and major project commitments—and anticipate overlapping demands to protect executive preparation and decision-making capacity.
• Coordinate logistics and materials for board, investor, and other high-stakes leadership interactions with internal and external stakeholders.

Benefits

• Health coverage: medical, dental, vision, fsa, onsite clinic (CO employees), life insurance
• 401(k) retirement plan with company match
• Vacation, holiday, and leave policies
• Tuition reimbursement, Employee recognition programs, Employee assistance programs

What This Job Offers

• Job Type: Full-time
• Career Level: Executive