Office Assistant/ Office Clerk

Ultimate Staffing Services; Costa Mesa (CA); On-site; USD 30,000 - 32,000; Full time

Benefits offered by this job

Sick time

401(k) match

Advancement opportunities

Job summary

Ultimate Staffing Services in Costa Mesa, CA is seeking a proactive Administrative Assistant to support multiple departments onsite. Responsibilities include answering calls, data entry, filing, and assisting with accounts payable tasks.

The ideal candidate is self-motivated, detail-oriented, organized, and professional on the phone and via email. This position offers strong growth potential and a path to advancement.

Qualifications

• Self-motivated with initiative and proactive work style.
• Attention to detail and accuracy in records and data.
• Strong organizational skills and ability to manage multiple tasks.

Responsibilities

• Provide administrative support to multiple departments.
• Answer and direct incoming phone calls professionally.
• Perform data entry and maintain accurate records.

Skills

Self-motivation

Detail oriented

Organized

Communication skills

Teamwork

Adaptability

Tools

MS Office

Job description

Salary: USD21.75 - USD22.95 per hour

• We are located in Costa Mesa, California. This is 100% onsite Monday to Friday.
• Please only apply if you have the qualifications and we are looking for someone who is a self-starter and is proactive.
• Provide administrative support to multiple departments
• Answer and direct incoming phone calls professionally
• Perform data entry while maintaining accurate records
• File and organize physical and electronic documents

• Assist with accounts payable and other accounting-related administrative tasks.
• Prepare and process documents, reports, correspondence, and spreadsheets.
• Support internal teams with special projects and day-to-day operational needs.
• Maintain organization within company systems and office workflows.
• Perform other administrative duties as assigned.

Who's Right for This Position?

To succeed in this role, the ideal candidate is:

• Self-motivated – Able to take initiative and stay productive without constant direction
• Detail-oriented – Accuracy matters, especially when handling records and data
• Organized – Able to manage multiple tasks and priorities
• Professional communicator – Comfortable on the phone and via email
• Team-oriented – Willing to jump in and support wherever needed
• Adaptable – Comfortable in a dynamic environment where priorities may shift

What's in it for You?

• 56 Hours of Sick Time
• 401(k) Retirement Plan with 4% Match
• Opportunities for Advancement (we promote from within!)

Yes, I am currently eligible to work (work permit/visa/citizenship) in the country to which I am applying. No, I am not currently eligible to work (work permit/visa/citizenship) in the country to which I am applying.