Executive Assistant

Medical Biowaste Solutions Inc; California; On-site; USD 34,000 - 41,000; Full time

Job summary

Medical Biowaste Solutions Inc is seeking an Executive Assistant / Chief of Staff to serve as a trusted extension of the CEO across three growing companies. This in-person role based at our Mission Viejo Corporate Office requires travel between locations.

Location: Mission Viejo, CA (In-Person) Pay: $25–$30/hour Schedule: 32–40 hours per week. You will manage calendars, travel, meetings, and executive scheduling; coordinate daily operations; lead project launches; and support sales, proposals,

Qualifications

• 5+ years of executive or leadership support experience.
• Excellent communication and organizational skills.
• Strong project management abilities.
• Ability to work independently and in a team.
• Experience with CRM, Office and collaboration tools.

Responsibilities

• Act as an extension of the CEO and drive strategic initiatives.
• Manage calendars, meetings, travel, and scheduling.
• Coordinate operations across three companies.
• Lead project launches and ensure timely execution.
• Prepare executive reports and presentations.
• Develop SOPs and operational systems.
• Handle confidential information securely.
• Support sales, CRM updates, and proposals.

Skills

Executive support

Project management

Communication

Organization

Independence

Adaptability

Tools

Microsoft Office

Google Workspace

CRM platforms

PM software

Job description

Job Description

Job Description

Location: Mission Viejo, CA (In-Person) Pay: $25–$30/hour Schedule: 32–40 hours per week

Position Overview

We're seeking a highly organized, proactive, and business-minded Executive Assistant / Chief of Staff to serve as a true extension of the CEO while supporting three growing companies. This role combines executive support, operations management, project coordination, sales support, strategic planning, and day-to-day decision-making. The ideal candidate is flexible, enjoys wearing multiple hats, adapts quickly to changing priorities, and proactively solves problems.

Work Environment

• Based out of our Corporate Office in Mission Viejo, California.
• Some administrative responsibilities may be performed from another company location as business needs require.
• Reliable personal transportation is required, as travel between locations is expected.
• This is an in-person role that requires flexibility and adaptability.

Key Responsibilities

• Act as an extension of the CEO by managing daily priorities and helping execute strategic initiatives.
• Manage calendars, meetings, travel, and executive scheduling.
• Coordinate daily operations across three companies.
• Lead project launches and oversee execution.
• Track milestones and hold projects accountable to deadlines.
• Conduct outreach to enterprise accounts and coordinate meetings.
• Support sales, proposals, CRM updates, and follow-up.
• Prepare executive reports and presentations.
• Build operational systems and SOPs.
• Handle confidential information professionally.
• Willingly take on new responsibilities as the business evolves.

Qualifications

• 5+ years supporting executives or leadership teams preferred.
• Excellent communication and organizational skills.
• Strong project management abilities.
• Comfortable working both independently and as part of a team.
• Experience with Microsoft Office, Google Workspace, CRM platforms, and project management software.
• Professional, resourceful, adaptable, and detail-oriented.