Administrative Assistant — On-Site Ops & Project Support

Walker-White Plumbing Hvac and Mechanical Inc; Columbia (SC); On-site; USD 36,000 - 54,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

401(k) plan

Paid time off

Professional development

Career growth

Job summary

Walker White Mechanical is seeking an Administrative Assistant to support office operations and project teams in Columbia, SC. You will serve as a key organizer, handle calls, scheduling, invoicing, onboarding, and recordkeeping to ensure smooth day-to-day activities in a fast-paced environment.

The role offers on-site full-time employment with growth opportunities and a collaborative team culture, supporting projects for schools, healthcare facilities, and businesses in the region.

Qualifications

• High school diploma or equivalent required.
• 1+ years administrative or coordinator experience.
• Proficiency with Microsoft Office Suite (Word, Excel, Outlook, Teams).
• Strong organizational skills and attention to detail.
• Excellent verbal and written communication skills.
• Ability to manage multiple priorities in a fast-paced environment.
• Professional attitude with dependable attendance.

Responsibilities

• Answer incoming phone calls and greet visitors professionally.
• Direct inquiries to the appropriate team members.
• Manage office correspondence and filing systems.
• Prepare reports, letters, and meeting materials.
• Maintain accurate records and document management.
• Support Project Managers and Field Supervisors with scheduling and admin needs.
• Assist with project documentation, data entry, and tracking information.
• Coordinate office and jobsite supply orders and monitor inventory.
• Assist with invoicing, expense tracking, and basic bookkeeping tasks.
• Support onboarding and new-hire paperwork.
• Maintain employee files and training documentation.
• Provide admin support for training records and compliance.
• Provide general administrative assistance to leadership and teams.
• Coordinate meetings and company events.

Skills

Customer service mindset

Communication

Organizational skills

Attention to detail

Multitasking

Education

High school diploma or equivalent

Associate degree in Business Administration

Tools

Microsoft Word

Excel

Outlook

Teams

Job description

Walker White Mechanical is seeking an Administrative Assistant to support office operations and project teams in Columbia, SC. You will serve as a key organizer, handle calls, scheduling, invoicing, onboarding, and recordkeeping to ensure smooth day-to-day activities in a fast-paced environment.

The role offers on-site full-time employment with growth opportunities and a collaborative team culture, supporting projects for schools, healthcare facilities, and businesses in the region.