Site Administrator - Stillwater, OK

EMCOR Group; Edmond (OK); On-site; USD 38,000 - 54,000; Full time

Job summary

Southern Industrial Constructors, Inc. in Edmond, OK, seeks a Site Administrator to perform office and job-site processing, including T&M time sheets, billing support, and cost coding accuracy.

You will coordinate with foremen, manage invoices, expenses, and provide HR assistance on pay stubs, benefits, and 401k questions, while maintaining professional communication.

This role requires strong organization, attention to detail, and the ability to work in an office and shop environment.

Qualifications

• Associates Degree in business administration, safety or related field preferred.
• Strong interpersonal communication, attention to detail, organization, and follow-up skills.
• Clear driving record
• Computer skills to include MS Word, Excel, Outlook, database management.

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 (accessing pay stubs, insurance, 401k or other miscellaneous 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

Interpersonal communication

Attention to detail

Organization

Follow-up

Education

Associates degree in business administration or related field

Tools

MS Word

Excel

Outlook

Database management

Job description

About Us

We perform installation, rigging, millwrighting, and maintenance for manufacturing and industrial markets across the Southeast.

Job Summary

Southern Industrial Constructors, Inc. is seeking a Site Administrator for a job-site located in Stillwater, OK. Performs both Office Administration and processing functions in an office or client site setting.

Essential Duties & 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 (accessing pay stubs, insurance, 401k or other miscellaneous 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.

Qualifications

• Conduct business and interactions with a positive attitude that projects the highest levelof professionalism.
• Associates Degree in business administration, safety or related field preferred.
• Computer skills to include MS Word, Excel, Outlook, database management.
• Basic clerical skills to include data entry, report preparation, file maintenance, scheduling appointments, and preparing invoices/bills for payment.
• Strong interpersonal communication, attention to detail, organization, and follow-up skills.
• Clear driving record

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Work Environment

Conditions include working in an office, with occasional entry into shop, busy traffic areas, and warehouses. Occasional exposure to dirt, dust, grease, oil, vibrations, and adverse weather conditions. Must be able to safely access all areas of property. Must be able to effectively use any required PPE equipment. Potential Jobsite Visits.

Equal Opportunity Employer

As a leading provider of mechanical and electrical construction, facilities services, and energy infrastructure, we offer employees a competitive salary and benefits package and we are always looking for individuals with the talent and skills required to contribute to our continued growth and success. Equal Opportunity Employer/Veterans/Disabled.

Affirmative Action Policy

Please review ourAffirmative Action Policy (https://emcorgroup.icims.com/icims2/servlet/icims2?module=AppInert&action=download&id=125239&hashed=-2094597515) .

Job Locations

US-OK-Edmond

ID

2026-52353

Company

Southern Industrial Constructors, Inc.

Category

Administrative Services

Position Type

Full-Time

Location Type

Onsite

Posted Date

1 month ago (9/8/2026 9:17 AM)