Administrative Assistant II

Location: San Francisco, CA (Onsite)

Duration: Contract

Pay Rate: $35.86/hour

Our client is seeking a highly organized and adaptable Administrative Assistant to provide administrative and operational support within a fast-paced professional services environment. This role combines high-volume operational work with direct administrative support, requiring someone who can effectively manage changing priorities while delivering exceptional service to internal stakeholders.

The ideal candidate is detail-oriented, resourceful, and comfortable working across multiple teams. Success in this role requires excellent organizational skills, strong communication, sound judgment, and the ability to balance process-driven responsibilities with dynamic administrative support.

• Provide administrative support to professionals through calendar management, meeting coordination, travel arrangements, and expense reporting.
  
• Deliver short-term coverage for team members as business needs require.
  
• Adapt quickly to varying work styles and support preferences across multiple stakeholders.
  
• Maintain professionalism and discretion while managing sensitive information.
  

• Process high-volume administrative requests through centralized systems.
  
• Prepare and distribute research materials, reports, and other business documentation.
  
• Update records and maintain accurate data across internal systems.
  
• Ensure all work is completed accurately, efficiently, and within established service levels.
  

• Prioritize multiple assignments while meeting competing deadlines.
  
• Monitor task progress and proactively communicate updates to stakeholders.
  
• Identify discrepancies, troubleshoot issues independently, and escalate when appropriate.
  
• Continuously seek opportunities to improve efficiency and streamline processes.
  

• Utilize business applications and AI-enabled tools to improve productivity and quality.
  
• Collaborate with internal teams to support operational excellence.
  
• Build positive working relationships across departments through responsive and professional service.
  
• Maintain clear, concise communication with colleagues and business partners.
  

• 2+ years of administrative, executive support, or operations experience.
  
• Strong organizational and time management skills with the ability to manage multiple priorities.
  
• Exceptional attention to detail and commitment to producing high-quality work.
  
• Excellent written and verbal communication skills.
  
• Demonstrated ability to adapt quickly in a fast-paced environment.
  
• Strong customer service mindset with a collaborative approach to supporting internal teams.
  
• Ability to work independently while exercising sound judgment.
  
• Proficiency with Microsoft Office Suite.
  
• Comfortable learning and using new technologies and AI-enabled productivity tools.
  

• Experience with expense management platforms such as Concur.
  
• Familiarity with financial or research platforms such as FactSet.
  
• Experience using Microsoft Copilot or similar AI productivity tools.
  
• Previous experience supporting professionals within financial services, consulting, or corporate environments.
  
• Experience managing high-volume administrative workflows.
  

• Associate's or Bachelor's degree preferred, or equivalent professional experience.
  

Mathys+Potestio is an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive workplace where all individuals are treated with respect and dignity. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex, sexual orientation, gender identity or expression, pregnancy, age, national origin, ancestry, citizenship status, disability, medical condition, genetic information, marital status, veteran status, military service, or any other characteristic protected by applicable federal, state, or local laws.