Part Time Administrative Assistant

Ultimate Staffing; Mission Viejo (CA); On-site; USD 32,000 - 37,000; Part time

Benefits offered by this job

Health insurance

401K

Holiday pay

Job summary

Ultimate Staffing in Mission Viejo, CA is seeking a Part-Time Administrative Assistant to provide administrative, HR, and office operations support in a professional workplace.

The role is a part-time, temporary-to-hire position with hours Monday-Friday 9AM-2PM. On-site in Mission Viejo, with a pay rate of 23–27 USD per hour. This role offers growth opportunities into permanent positions with partner companies.

Qualifications

• High school diploma or equivalent required.
• Associate's or Bachelor's degree preferred.

Responsibilities

• Support HR administrative processes, including file management and records coordination
• Assist with planning and coordinating employee engagement activities, celebrations, and recognition events
• Help facilitate employee culture and engagement initiatives
• Conduct daily office walkthroughs to ensure workspaces, conference rooms, and common areas are organized and well-stocked
• Welcome and assist employees, visitors, guests, and clients
• Coordinate meetings and events, including room setup, scheduling, and catering arrangements
• Manage office supply inventory and place orders as needed
• Sort and distribute incoming mail and coordinate package deliveries
• Act as the primary point of contact for office-related questions and requests

Education

High School Diploma or equivalent

Associate's or Bachelor's degree

Job description

Administrative Assistant, Part-Time | Mission Viejo, CA | M-F 9AM - 2PM| Temporary-to-Hire | $23-27/hr

Ultimate Staffing is partnering with a Mission Viejo-based office hiring a Part-Time Administrative Assistant. This position will provide administrative, human resources, and office operations support while helping maintain a positive, organized, and professional workplace environment.

• Employment Type: Temporary-to-Hire
• Schedule: Part-Time, Monday-Friday 9AM - 2PM
• Location: Mission Viejo, CA (Onsite)
• Pay Rate: $23-27/hr

Key Responsibilities

• Support HR administrative processes, including file management and records coordination
• Assist with planning and coordinating employee engagement activities, celebrations, and recognition events
• Help facilitate employee culture and engagement initiatives
• Conduct daily office walkthroughs to ensure workspaces, conference rooms, and common areas are organized and well-stocked
• Welcome and assist employees, visitors, guests, and clients
• Coordinate meetings and events, including room setup, scheduling, and catering arrangements
• Manage office supply inventory and place orders as needed
• Sort and distribute incoming mail and coordinate package deliveries
• Act as the primary point of contact for office-related questions and requests

Qualifications

• High school diploma or equivalent required; Associate's or Bachelor's degree preferred
• Minimum 1 year of administrative, office coordination, or related experience

Ultimate Staffing offers benefits including health care coverage, 401K, holiday pay and the opportunity to grow into permanent positions with oustanding companies.

All qualified applicants will receive consideration for employment without regard to race, color, national origin, age, ancestry, religion, sex, sexual orientation, gender identity, gender expression, marital status, disability, medical condition, genetic information, pregnancy, or military or veteran status. We consider all qualified applicants, including those with criminal histories, in a manner consistent with state and local laws, including the California Fair Chance Act, City of Los Angeles' Fair Chance Initiative for Hiring Ordinance, and Los Angeles County Fair Chance Ordinance.