Job Information
Robert Half Sr. Administrative Assistant in La Mesa, California
Description
Our client in the nonprofit sector is seeking a highly skilled and experienced Senior Administrative Assistant to provide advanced support to leadership and help drive the organization’s mission forward. This role offers an opportunity to make a meaningful impact while leveraging your expertise in managing complex administrative functions.
Responsibilities:
Manage executive and team calendars, schedule meetings, and coordinate travel arrangements.
Prepare, edit, and distribute correspondence, grant documents, reports, and presentations.
Act as the primary point of contact for internal and external stakeholders.
Maintain confidential organizational records, databases, and filing systems.
Support donor relations, event planning, and project coordination efforts.
Mentor and assist junior administrative team members.
Assist with onboarding, training, and office procedures.
Process invoices, track expenses, and help with basic budget monitoring.
Handle sensitive information with professionalism and discretion.
Execute special projects and additional duties as assigned.
Requirements
Proven experience in senior administrative support, preferably within nonprofit or mission-driven organizations.
Strong organizational skills and the ability to manage multiple priorities.
Excellent written and verbal communication abilities.
Proficiency in Microsoft Office Suite; knowledge of donor management software a plus.
High level of professionalism and discretion in handling confidential information.
High school diploma required; associate’s or bachelor’s degree preferred.
TalentMatch®
Robert Half is the world’s first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles.
Robert Half works to put you in the best position to succeed. We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app (https://www.roberthalf.com/us/en/mobile-app) and get 1-tap apply, notifications of AI-matched jobs, and much more.
All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan. Visit roberthalf.gobenefits.net for more information.
© 2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking “Apply Now,” you’re agreeing to Robert Half’s Terms of Use (https://www.roberthalf.com/us/en/terms) and Privacy Notice (https://www.roberthalf.com/us/en/privacy) .