Site Administrator: Construction Office & Billing

Southern Industrial Constructors, Inc.; Edmond (OK); On-site; USD 40,000 - 60,000; Full time

Job summary

Southern Industrial Constructors, Inc. is seeking a Site Administrator for a job-site in Stillwater, OK. The role combines office administration with field support to ensure smooth daily operations and timely processing of documents, invoices, and reports.

You will manage time sheets, billing support, purchasing, and basic HR inquiries, while coordinating with foremen and project staff. Strong computer skills and attention to detail are essential in a fast-paced industrial setting.

Qualifications

• Associates degree preferred.
• Proficient in MS Word, Excel, Outlook and database management.
• Strong interpersonal communication, attention to detail, organization and follow-up skills.
• Clear driving record.

Responsibilities

• Type daily T&M time sheets by cost code from the foreman time sheets.
• Prepare weekly group time and per diem sheets and process time off requests.
• Create cost codes as needed.
• Order miscellaneous construction consumables, materials and safety supplies.
• Compile all signed time sheets for billing.
• Assist with preparing billing invoices.
• Prepare credit card and cash expense forms.
• Assist employees with questions (pay stubs, insurance, 401k or HR questions).
• Approving invoices in document management.
• Run various cost reports as needed in Timberline.
• May need to pick up hot items from Lowes, Fastenal, etc.
• Other duties as assigned.

Skills

MS Word

Excel

Outlook

Database management

Interpersonal communication

Attention to detail

Organization

Follow-up skills

Driving record clean

Education

Associate's Degree in business administration, safety or related field

Tools

Timberline

Job description

Southern Industrial Constructors, Inc. is seeking a Site Administrator for a job-site in Stillwater, OK. The role combines office administration with field support to ensure smooth daily operations and timely processing of documents, invoices, and reports.

You will manage time sheets, billing support, purchasing, and basic HR inquiries, while coordinating with foremen and project staff. Strong computer skills and attention to detail are essential in a fast-paced industrial setting.