Commercial Site Administrator

ERSG Ltd; Cornholme; On-site; GBP 30,000 - 45,000; Full time

Job summary

A leading offshore wind turbine manufacturer is seeking a Commercial Site Administrator to manage financial administrative tasks. Responsibilities include supporting the Purchase Order process, maintaining inventory, and communicating effectively with both internal teams and external suppliers. Ideal candidates should have proven experience in office administration, strong IT skills, and familiarity with finance processes. This role is critical to ensuring financial and commercial processes are adhered to in a dynamic environment.

Qualifications

• Proven experience as office/business administrator or assistant.
• Familiarity with Siemens office management procedures.
• Living and working experience in an intercultural environment.

Responsibilities

• Manage finance administrative tasks on a construction site.
• Support the Purchase Order process and validate supplier invoicing.
• Ensure site inventory is established and maintained.
• Track and log site inventories, purchases, and assets.
• Document events and communicate to the Commercial team.

Skills

Team player

Advanced communication skills in multicultural environments

Self-motivated and trustworthy

Quality & Focus Oriented

Ability to Analyze

Change Orientation

Education

Qualifications in Finance and Business Administration studies

Tools

MS Outlook

Office 365 (Excel, Word, OneDrive)

SAP

Job description

ERSG is currently looking for a Commercial Site Administrator for a large offshore wind turbine manufacturer based out of Portsmouth, Virginia.

Position Overview

The Commercial Site Administrator manages typical finance administrative tasks on a construction site and reports functionally to the Commercial Site Management and disciplinary to the Operations Manager in the back-office.

Supporting the Commercial Site Manager & Senior Admins to ensure financial and commercial processes on site are properly adhered to, the Commercial Site Administrator will be part of the site team to assist with the day‑to‑day finance topics including forecasting, quality assurance of costs on site, purchase ordering, processing, and checking invoices from suppliers and reporting of costs.

Responsibilities

Procurement

• Support the Purchase Order (PO) process by raising PO requisitions, sending POs to suppliers, and ensuring adherence to all purchasing processes.
• Execute the Short Order process on site, including raising, filing, and monitoring all short orders.
• Validate supplier invoicing and ensure correct posting against POs, acting as a contact person for suppliers regarding invoices and payments.

Cost Controlling

• Assist the Commercial Site Manager with input on site purchases to enhance cost controlling and forecast accuracy.

Asset Management

• Ensure site inventory is established and monitored, including setting up and maintaining an assets log and performing regular inventory checks.

Commercial Documentation

• Track, monitor, and log site inventories, purchases, assets, and equipment.
• Provide support for ad hoc administrative tasks, including attending meetings and drafting minutes/notes as needed.

Event Documentation and Communication

• Maintain responsibility for documenting events and communicating these to the Commercial team, ensuring they are informed of any issues that impact the project financially.

Coordination with Construction Administrators

• Collaborate with Construction Administrators to ensure alignment with project operations and goals.
• Business Administration and Finance – Purchase Ordering, Invoices, cost controlling and analysis.
• Advanced communication skills in multicultural environments.
• Advanced IT Skills - MS Outlook, Office 365 (Excel, Word, OneDrive).
• Team player.
• Self‑motivated and trustworthy.
• Quality & Focus Oriented
• Experienced w/ SAP
• Knowledge and interest in industry - wind turbine industry, construction projects.
• Safety awareness
• Analysis/statistics
• OSHA10 or Equivalent

Qualifications

Professional

• Proven experience as office / business administrator, assistant or relevant role. Qualifications in Finance and Business Administration studies will be an advantage.

Project/Process

• Familiarity with Siemens office management procedures and preferably within the Offshore Wind Industry.

Intercultural

• Living and working experience in an intercultural environment

Capabilities

• Team Skills
• Ability to Learn
• Communication Skills
• Customer Focus
• Ability to Analyze
• Change Orientation

Contacts

• Internal - Finance and Commercial teams, Site Management and Site Team, Site Support, Departments and all other internal Interface to/from the site.
• External - Customers, subcontractors, suppliers and all other external contacts to/from the site