Executive Assistant to Managing Principal

Du Mont Engineering
Rancho Santa Margarita, CA, US
Posted May 8, 2026

About the Role

We are seeking a highly organized, proactive, and detail\-oriented Executive Assistant to support our Managing Principal on a part\-time basis (25 hours per week), with the possibility to extend to 30 hours per week in the future. This is a high\-impact role that goes beyond traditional administrative support. You will help bring structure, organization, and efficiency to daily operations and initiatives.

The ideal candidate is someone who thrives in a fast\-paced environment, anticipates needs before they arise, and is comfortable balancing administrative responsibilities with marketing, proposal coordination, and special project support.

Position Duties and Responsibilities Include:

*Executive Support*

  • Manage and prioritize the Managing Principal’s calendar, meetings, and commitments
  • Provide structure and organization to email communications, including drafting, editing, and prioritizing correspondence
  • Coordinate internal and external meetings, including agendas, materials, and follow\-ups
  • Act as a gatekeeper and facilitator to optimize the Managing Principal’s time
  • *Proposals \& Business Development Support*

  • Assist in the preparation and development of proposals
  • Maintain proposal templates, and related documentation
  • *Marketing \& Administrative Coordination*

  • Support marketing initiatives
  • Help maintain and update company marketing materials
  • Assist with event coordination and client\-facing activities as needed
  • *Office Management*

  • Ensure the office is well\-maintained, organized, and fully stocked with necessary supplies and equipment
  • Support general administrative and technology needs across the office
  • *Projects and Systems Administration*

  • Maintain and update internal systems with accurate project and business information
  • *Special Projects*

  • Provide support on ad hoc initiatives, strategic efforts, and internal projects.
  • Requirements:

  • 2\-3\+ years of experience in an executive assistant, operations assistant, or similar role.
  • Associates and/or bachelor’s degree in a relevant field preferred, but not required.
  • Qualifications/Skills

  • Strong organizational and time management skills with exceptional attention to detail
  • Proficiency in Microsoft Office (Outlook, Word, Excel, etc.) and familiarity with project management tools
  • Excellent written and verbal communication skills
  • Ability to manage multiple priorities and adapt quickly in a dynamic environment
  • Experience supporting proposals, marketing efforts, or business development activities is highly preferred.
  • Pay and Benefits:

  • Pay range based on experience and qualifications:
  • $35 \- $45 per hour
  • Benefits include paid time off, sick leave, health care plan, dental plan, vision plan, and 401(k).
  • Flexible work environment with every other Friday off.
  • Job Type: Full\-time

    Base Pay: $35\.00 \- $45\.00 per hour

    Benefits:

  • 401(k)
  • 401(k) matching
  • Dental insurance
  • Flexible schedule
  • Health insurance
  • Paid time off
  • Parental leave
  • Vision insurance
  • Application Question(s):

  • Will you now, or in the future, require employer sponsorship?

Work Location: Hybrid remote in Rancho Santa Margarita, CA 92688

Job Details

Job Type

admin_data_entry

How to Apply

This job has specific application instructions. Please read the full job description carefully.

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Original job posting from: Indeed_linkedin

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