Job Opportunity: commercial site administrator Location: Able Seaton, UK Contract: 6 months Hours: 40 hours/ week Randstad Sourceright, a leading provider of RPO & MSP Recruitment Services, is currently recruiting for a Commercial Site Administrator on behalf of our client, Siemens Gamesa. This role is essential for ensuring the financial health, administrative accuracy, and commercial compliance of a large-scale offshore wind farm construction project. Job Purpose The Commercial Site Administrator serves as the primary liaison between the on-site construction activities and the broader financial and procurement departments. The purpose of this role is to manage the end-to-end commercial lifecycle—including purchase orders, cost tracking, and subcontractor invoicing—ensuring that the site management team has accurate financial data to drive operational excellence and project success. Responsibilities * Commercial & Financial Administration: Maintain and update trackers for Purchase Orders (POs), financial commitments, and project forecasts. * Invoice Management: Oversee the end-to-end invoice lifecycle, ensuring all subcontractor and vendor submissions are accurate, approved, and compliant with internal standards. * Cost Tracking: Record and monitor actual spend against budgets, providing regular commercial reports to the Site Management team. * Stakeholder Liaison: Act as the main point of contact for subcontractor inquiries regarding payment status and commercial documentation. * Operational Alignment: Partner with Procurement and Accounts Payable teams to resolve discrepancies and streamline site-level commercial processes. * Documentation Control: Maintain organized, audit-ready records of all commercial transactions and site-level contracts. About You * Experience: You have a proven track record in commercial or financial administration, preferably within a project-based, construction, or heavy-industry environment. * Technical Proficiency: You are a "power user" of Microsoft Excel and possess strong analytical skills. Experience with SAP is highly advantageous. * Attention to Detail: You have the ability to process high volumes of commercial data with extreme accuracy and organizational rigor. * Proactive Mindset: You are an independent problem-solver who takes ownership of tasks and can confidently challenge or support a multi-disciplinary team. * Communication: You possess strong interpersonal skills, allowing you to collaborate effectively with diverse site teams and global functional departments. Passion & Values: You are motivated by the renewable energy transition and hold a deep commitment to site safety, integrity, and teamwork