ROLE GUIDE 06 · SITE OPERATIONS
Site Administration
Keep the jobsite running, from initial setup through final closeout
- 01
- Pyeongtaek Mulsan Site Administration Team
- 02
- Site Office
- 03
- Contracts + People + Costs + Materials
This guide is based on an interview with Seoyeon Jang (pseudonym) of the Pyeongtaek Mulsan Site Administration Team.
Staged images featuring fictional people.
THE SITE OPERATIONS
Site administration coordinates the people, resources, and records that keep a jobsite running.
At the start of a project, the team reviews contract terms and obligations, then arranges housing, office space, furnishings, and communications. Throughout the project, it manages hiring and departures, timekeeping, payroll, expenses, and materials to keep the site supported.
At closeout, the team reconciles progress payment records with partner companies and the general contractor, confirms contract changes, and finalizes the accounts. The site office coordinates these responsibilities from project startup through closeout.
OPEN TO CLOSE
Six stages take a project from site setup to closeout.
Contract requirements guide staffing, expense, and material records. Those records then support progress billing and final reconciliation.
- 01
OPEN
Review the contract and plan site setup
After the contract is awarded, review its terms and obligations, then organize the schedule and checklist for site setup.
- IN
- Contract + Obligations + Setup Schedule
- OUT
- Site Setup Checklist + Contract Requirements
- 02
SET
Set up the workplace
Arrange nearby housing, lease and furnish the office, and set up communications so the team is ready to start.
- IN
- Mobilization Plan + Workplace Needs
- OUT
- Housing + Office + Communications
- 03
PEOPLE
Manage onboarding, work hours, payroll, and offboarding
Manage onboarding, timekeeping, payroll calculations, and departures for skilled workers, while monitoring work hours and addressing worker concerns.
- IN
- Staffing + Work Hours + Labor Conditions
- OUT
- Staffing Records + Payroll Calculations
- 04
OPERATE
Manage expenses and material supply
Manage operating expenses, rent, and meal costs. Order, receive, and track materials supplied by the customer or under the contract, along with miscellaneous supplies.
- IN
- Operating Requests + Cost Plan + Material Demand
- OUT
- Expense Record + Material Availability
- 05
CLAIM
Document completed work and reconcile progress payments
Calculate progress payments for partner companies, respond to the general contractor’s administration team, and use supporting records to resolve differences over billable work.
- IN
- Completed Work + Contract Scope + Evidence
- OUT
- Partner Company + General Contractor Billing Records
- 06
CLOSE
Confirm changes and finalize the accounts
At site closeout, review contract changes and total completed work, then reconcile the final amounts with complete supporting records.
- IN
- Change Record + Cumulative Claims + Cost Record
- OUT
- Final Reconciliation + Closeout Records
DECISION RECORDS
When plans change, verify the facts and agree on the next steps.
The team verifies the facts, agrees on a response with the people involved, and documents the outcome for future decisions.
CASE 01
Meeting a deadline after an urgent material request
- 01Problem
An unexpected material request had to be supplied immediately to protect the project schedule.
- 02Check
From the office, the administrator confirmed specifications, quantity, the required delivery time, and available inventory in the existing supply network.
- 03Coordination
A vendor that could supply immediately was found, the delivery was coordinated, and progress was shared with the relevant teams.
- 04Result
The material arrived within the required window, and an additional partner supplier was secured for future projects.
OutcomeOn-time delivery + Alternate supply source
CASE 02
Adjusting staffing to meet work-hour limits and address worker concerns
- 01Problem
Staffing for a demanding delivery schedule created a risk of exceeding the 52-hour workweek and concerns among skilled workers.
- 02Check
Work-hour records, legal requirements, staffing demand by activity, and the schedule impact were reviewed together.
- 03Coordination
The administrator worked with the construction and safety teams to adjust crew assignments and bring the schedule within the applicable work-hour limits.
- 04Result
The revised staffing plan met work-hour requirements while providing the crews needed for the job.
OutcomeWork-hour compliance + Revised staffing plan
CASE 03
Resolving a disagreement over billable work
- 01Problem
The site team and the general contractor’s administration team disagreed about which completed work qualified for progress billing.
- 02Check
The contract scope, completed work, submitted records, and change history were compared item by item.
- 03Coordination
The administrator organized the supporting records and reviewed them with the general contractor to agree on the billable scope.
- 04Result
The team agreed on a documented progress billing amount and clarified the basis for final reconciliation.
OutcomeAccurate progress billing + Clear reconciliation records
COLLABORATION MAP
The Site Administration Team connects information across the field, general contractor, and headquarters.
Different departments may view the same figure or deadline differently. Site administration clarifies each request, gathers the supporting records, and explains what needs to happen next.
Site Construction + Safety
Share daily staffing, material availability, operational needs, and requests to improve the working environment.
General Contractor Administration
Coordinate progress billing, contract changes, and required submissions through meetings and written records.
HQ Purchasing
Confirm purchase orders, supplier conditions, and options for urgent material sourcing.
HQ Management Support
Arrange housing, office space, communications, and other support needed to run the site.
HQ Human Resources
Coordinate onboarding, offboarding, work hours, and labor issues under the applicable requirements.
HQ Accounting
Confirm how to process operating expenses, rent, meals, payroll, and reconciliation records.
CORE CAPABILITIES
Work accurately with numbers and find workable agreements across teams.
Spreadsheet skill alone is not enough. You need to understand the operation behind the data, explain the evidence, and take responsibility through the final result.
- 01
Data accuracy
Keep timekeeping, payroll, expense, material, and progress billing records consistent, and verify the source of each figure.
- 02
Negotiation and flexible communication
Listen to different needs across the general contractor, site teams, and headquarters, then narrow them to a workable agreement.
- 03
Labor and accounting fundamentals
Understand the rules and procedures for timekeeping, payroll, expense processing, and account reconciliation.
- 04
Operational understanding
Judge how requests arriving at the office affect the work sequence, staffing, and material schedule.
- 05
Ownership
Recognize how small issues affect the project and follow each task through final reconciliation.
EMPLOYEE VOICE
How Seoyeon Jang defines Site Administration
Seoyeon Jang (pseudonym) · Pyeongtaek Mulsan Site Administration Team · Site Administration
01“Site administration takes care of the day-to-day operation and helps the project make sound decisions.”
02“Even a small issue requires considering many possible outcomes and checking the evidence until the best choice is clear.”
03“Company AI training helped me build a program that reduced repetitive work, giving me more time to focus on decisions involving contracts, schedules, and costs.”
04“I want to work with someone who takes ownership, wants to learn, and communicates with flexibility and a positive attitude.”
THE RESULT
“Coordinating contracts, staffing, expenses, materials, billing, and final reconciliation keeps the jobsite running.”