Senior Administrative Assistant

Job Title: Temporary Senior Administrative Assistant

Location (city, state): Alameda, CA (Onsite)

Industry: Life Sciences / Biotechnology

Pay: $30 - 35 per hour

Benefits: This position is eligible for medical, dental, vision, and 401(k).

About our client:

Addison Group is partnering with our client, a well-established organization in the life sciences space, to hire an experienced administrative professional to support senior leadership. This company operates in a fast-paced, highly regulated environment and values professionalism, discretion, and strong cross-functional collaboration.

Job Description:

Our client is seeking a Temporary Senior Administrative Assistant to provide high-level support to executive leaders. This position requires someone who is proactive, detail-oriented, and experienced in managing complex logistics while maintaining strict confidentiality. The ideal candidate is comfortable operating in a dynamic environment and interacting with senior stakeholders.

• Oversee and coordinate complex calendars for senior executives, ensuring efficient scheduling and prioritization
• Arrange domestic travel logistics, including flights, accommodations, and detailed itineraries
• Prepare, submit, and track expense reports and reimbursements
• Coordinate internal and external meetings, including visitor logistics and event support
• Serve as a central point of contact for communications, including email and phone inquiries
• Collaborate with cross-functional teams on projects and company initiatives
• Provide additional administrative coverage and support as needed

• Bachelor’s degree preferred or equivalent professional experience
• Demonstrated experience supporting VP-level or higher executives
• Strong background in calendar management, travel coordination, and expense processing
• Advanced proficiency in Microsoft Outlook, Word, Excel, and Power Point
• Excellent written and verbal communication skills
• Strong organizational skills and ability to manage competing priorities
• Ability to handle confidential information with professionalism and discretion
• Experience in pharmaceutical or biotech environments preferred

• Schedule:
  
  Monday–Friday, 8:00 AM – 5:00 PM
• Start Date:
  
  February 23, 2026
• End Date:
  July 31, 2026
• Employment Type:
  
  Temporary
• Work Environment:
  Fully onsite

• Exposure to executive-level leadership
• Full-time hours (40 per week)
• Opportunity to build experience within a reputable, fast-paced corporate setting
• Collaborative and team-oriented environment

Addison Group is an Equal Opportunity Employer. Addison Group provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, gender, sexual orientation, national origin, age, disability, genetic information, marital status, amnesty, or status as a covered veteran in accordance with applicable federal, state and local laws. Addison Group complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities.

Reasonable accommodation is available for qualified individuals with disabilities, upon request.

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