Billing & Documentation Administrative Assistant

Penhall Company and Penhall Technologies; Biloxi (MS); On-site; USD 32,000 - 46,000; Full time

Job summary

Penhall Company is hiring an Administrative Assistant to join our Biloxi, MS team. The role focuses on day-to-day administrative duties with a strong emphasis on billing and related documentation.

The ideal candidate will be comfortable with numbers, deadlines, and multiple priorities, and will assist with COIs, payroll-related tasks, and documentation. This position supports both office operations and field staff as part of the Biloxi branch.

Qualifications

• Previous administrative or office experience.
• Billing experience is strongly preferred (from the ad).
• Understanding of COI request process.
• Experience with certified payroll is a plus.

Responsibilities

• Provide day-to-day administrative support to the Biloxi branch
• Assist with billing and invoice-related activities
• Prepare, organize, and maintain office and project documentation
• Assist with Certificates of Insurance (COIs) and understand the process for requesting and obtaining them
• Enter and maintain information accurately in company systems
• Assist with payroll-related administrative tasks and documentation
• Support certified payroll entries when needed
• Communicate with internal teams, customers, vendors, and other contacts
• Maintain accurate records and ensure paperwork is completed in a timely manner
• Help with general office coordination and other administrative duties as needed

Skills

Billing experience

Administrative support

COI process understanding

Payroll processing

Microsoft Office

Communication

Documentation

Job description

Penhall Company is hiring an Administrative Assistant to join our Biloxi, MS team. The role focuses on day-to-day administrative duties with a strong emphasis on billing and related documentation.

The ideal candidate will be comfortable with numbers, deadlines, and multiple priorities, and will assist with COIs, payroll-related tasks, and documentation. This position supports both office operations and field staff as part of the Biloxi branch.