Administrative Assistant Job at Confidential, East Rancho Dominguez, CA

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  • Confidential
  • East Rancho Dominguez, CA

Job Description

Be a key part of a team that keeps the business moving.

We are looking for a polished, highly organized, and proactive Administrative Assistant to join our growing subcontractor company . This is more than a traditional administrative role — it is an opportunity for someone who takes pride in being dependable, detail-oriented, and instrumental in supporting the day-to-day functions that help a company run at a high level.

In this role, you will provide essential support across administration, HR, and payroll , while partnering closely with office staff, field employees, supervisors, and leadership. We are seeking someone who thrives in a fast-paced environment, communicates professionally, handles confidential information with care, and brings a strong sense of ownership to their work.

If you enjoy creating order, staying one step ahead, and being a trusted support partner to a busy team, we would love to hear from you.

What You’ll Do

  • Provide day-to-day administrative support to leadership and internal teams
  • Manage incoming calls, emails, and general office communication in a professional and timely manner
  • Prepare letters, reports, spreadsheets, forms, and other business documents
  • Maintain accurate and organized digital and paper filing systems
  • Assist with scheduling meetings, interviews, and appointments
  • Support onboarding activities, including preparing new hire paperwork and maintaining personnel files
  • Assist with employee record updates, HR documentation, and policy acknowledgments
  • Help coordinate pre-employment processes such as background checks and onboarding logistics
  • Collect, review, and organize employee timesheets for payroll processing
  • Assist with payroll data entry and verify supporting documentation for accuracy
  • Follow up with supervisors and employees on missing or incomplete timekeeping information
  • Handle confidential employee and company information with discretion and professionalism

What We’re Looking For

  • C ollege degree preferred
  • A recent graduate who has at least 1 year of Administrative Assistant experience
  • Prior experience supporting HR and/or payroll is strongly preferred
  • Experience in a subcontractor, trades, or similar environment is a plus
  • Strong proficiency in Microsoft Office , including Outlook, Word, and Excel
  • Excellent communication, organizational, and time management skills
  • Strong attention to detail and a high level of accuracy
  • Ability to multitask, prioritize effectively, and meet deadlines
  • Professional, dependable, and team-oriented
  • Comfortable handling sensitive and confidential information

Why Join Us

  • Be part of a growing company where your work has real impact
  • Gain valuable experience across administration, HR, and payroll
  • Work alongside a team that values reliability, initiative, and professionalism
  • Join an environment where strong contributors are noticed and trusted
  • Opportunity to build your skills and grow with the company

Ready to Join Us?

If you are looking for an opportunity to contribute, grow, and be part of a team that values strong support and follow-through, we encourage you to apply.

Here is an even more branded opener option you could swap in at the top:

At our company, strong teams are built on strong support. We are looking for an Administrative Assistant who brings professionalism, organization, and a can-do mindset to a role that supports the people and processes behind our day-to-day success.

Job Tags

For subcontractor, Work at office

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