Executive Assistant & Office Manager — On-Site CA

Sierra Management and Technologies, Inc.; California (MD); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Flexible work schedules and remote/hyb

Medical, dental, and vision insurance

401(k) retirement plan with matching

Generous paid time off

11 paid holidays

Employee assistance program

Job summary

Sierra Management and Technologies, Inc. in California, MD is seeking an Executive Assistant and Office Manager to streamline operations and support senior leadership.

This on-site role emphasizes proactive organization, calendar management, travel arrangements, and efficient office administration. The ideal candidate will demonstrate strong communication, discretion, and problem-solving skills, with a track record of improving processes in a fast-paced environment.

Qualifications

• Five years of experience in an Executive Assistant, Office Manager, or similar administrative role.
• Strong organizational, time management, and multitasking skills with keen attention to detail.
• Excellent verbal and written communication skills.
• Proficiency in Microsoft Office Suite (Word, Excel, PowerPoint, Outlook), Canva, and other administrative tools.
• Ability to maintain confidentiality and handle sensitive information with professionalism.
• Friendly, proactive, and adaptable to changing priorities.
• Ability to independently identify and implement process improvements to enhance administrative and operational effectiveness.
• Experience working in a dynamic, fast-paced environment.
• Ability to work independently, prioritize tasks, and anticipate needs without direct supervision.

Responsibilities

• Provide high-level administrative support to senior executives, including calendar management, travel arrangements, and expense reporting.
• Prepare / draft reports, presentations, and correspondence on behalf of leadership.
• Assist with meeting coordination, including scheduling, agendas, and follow-ups.
• Maintain confidential records and handle sensitive information with discretion.
• Greet visitors, answer phones and direct inquiries professionally.
• Ensure visitor logs are completed, and visitor policies are adhered to.
• Manage incoming and outgoing mail, deliveries, and office communications.
• Coordinates meeting space scheduling for all corporate office staff.
• Ensure the office and common areas remain organized, well-stocked, and presentable.
• Act as the facilities point of contact with COPT building management.
• Coordinate and ensure completion of office maintenance and maintain positive vendor relationships.
• Maintain records of key business operations information.
• Coordinate staff recognition emails and awards.
• Distribute task order memos.
• Manage the collection of corporate office supply order needs.
• Organize company events, meetings, and team activities.
• Support HR and finance processes, such as onboarding, expense reporting, and invoice tracking.

Skills

Executive support

Office management

Time management

Communication skills

Microsoft Office

Canva

Confidentiality

Independent work

Tools

MS Office Suite

Canva

Job description

Sierra Management and Technologies, Inc. in California, MD is seeking an Executive Assistant and Office Manager to streamline operations and support senior leadership.

This on-site role emphasizes proactive organization, calendar management, travel arrangements, and efficient office administration. The ideal candidate will demonstrate strong communication, discretion, and problem-solving skills, with a track record of improving processes in a fast-paced environment.