Administrative Assistant

Job Description

onsemi is seeking an experienced, highly organized, and proactive Administrative Assistant (AA) on a contract basis to provide comprehensive administrative and operational support within the Corporate Strategy Leadership for one of our clients in San Jose, CA. This is an onsite position and a contract role. Pay: $38-$40 hourly. This role supports leaders across regions and time zones, including close collaboration with a leader based in Germany.

The ideal candidate will be comfortable managing complex priorities, exercising sound judgment and discretion, and operating independently in a fast-paced, executive environment.

• Provide high‑level executive administrative support within Corporate Strategy Leadership and team
• Support leaders operating across global regions, including regular coordination with a leader based in Germany, accommodating time‑zone differences as needed
• Manage complex executive calendars, including scheduling meetings, interviews, site visits, and cross‑functional engagements
• Coordinate logistics for leadership meetings, team events, offsites, town halls, and virtual sessions
• Handle domestic and international travel arrangements and submit/reconcile executive expense reports
• Support onboarding activities, including coordination of system access and site orientation when applicable
• Manage administrative and office operations as needed, including invoice reconciliation, vendor coordination, shipping, and related operational support
• Maintain a high level of confidentiality while handling sensitive information and executive matters
• Create and maintain spreadsheets, trackers, documentation, and other tools to support business and operational needs
• Provide professional support to visitors, candidates, and external partners
• Identify opportunities to streamline administrative processes and improve efficiency
• Complete special projects and ad hoc assignments as requested by leadership

• Bachelor's degree preferred or equivalent professional experience
• Minimum 5+ years of experience supporting leaders in a fast‑paced corporate environment
• Demonstrated ability to support multiple leaders with competing priorities
• Strong organizational, time‑management, and prioritization skills
• Excellent written and verbal communication skills with a professional executive presence
• Highly collaborative, proactive, and able to work independently with minimal supervision
• Proven ability to handle confidential and sensitive information with discretion
• Strong problem‑solving skills with the ability to anticipate leadership needs
• Advanced proficiency in Microsoft Office (Outlook, Word, Excel, PowerPoint)
• Experience in building/maintaining Microsoft Teams/SharePoint sites is highly desirable
• Detail‑oriented, adaptable, and comfortable managing shifting priorities
• Willingness to work extended hours as business needs require, but will be kept to a minimum
• Experience supporting global or cross‑regional leaders is highly desirable

Aleron companies (Acara Solutions, Aleron Shared Resources, Broadleaf Results, Lume Strategies, Talent Rise, Viaduct) are an Equal Opportunity Employer. Race/Color/Gender/Religion/National Origin/Disability/Veteran.

Applicants for this position must be legally authorized to work in the United States. This position does not meet the employment requirements for individuals with F-1 OPT STEM work authorization status.