Commercial Admin in East Sussex, England at Vortex Companies, LLC

Want to be part of one of the country’s fastest growing infrastructure businesses? The Vortex Companies, LLC delivers cutting edge trenchless technologies and turnkey services to make the worlds water cleaner and we’re growing every day!

We think BIG about solving the world’s toughest challenges in failing water, sewer and industrial infrastructure.

At Vortex, you will be surrounded with a culture that puts your safety first in all we do. If you like a fast-paced environment, a team structure that provides support, training, and development, then apply today!

About the Role

Vortex, a specialist CIPP (Cured-In-Place Pipe) rehabilitation contractor, is seeking an organised and proactive Commercial Administrator to join our growing operations team, supporting projects across the South of the UK.

This is a key support role within the business. Working from our office, you will be responsible for providing administrative and commercial support across projects — including purchase orders, subcontractor documentation, invoicing, and contract records — ensuring accurate and timely processing throughout the project lifecycle.

Working closely with the Commercial, Operations, and Finance teams, you will play a critical role in maintaining accurate commercial records, supporting cost control, and ensuring projects are administered efficiently from order through to final account.

This position is based in our office and involves regular liaison with project managers, suppliers, subcontractors, and clients to ensure commercial processes run smoothly.

Key Responsibilities

• Raise and process purchase orders, ensuring accuracy against project budgets and supplier agreements
• Support the preparation and processing of subcontractor orders, valuations, and payment documentation
• Assist with the preparation of client applications for payment, invoices, and supporting documentation
• Maintain accurate commercial records, contract files, and project cost trackers
• Chase outstanding supplier and subcontractor documentation, including insurances and compliance paperwork
• Support the Commercial team with cost reporting, variations, and change control administration
• Liaise with suppliers and subcontractors regarding orders, deliveries, and account queries
• Assist with reconciliation of supplier invoices against purchase orders and delivery records
• Maintain and update internal databases and systems with accurate commercial and project data
• Provide general administrative support to the Commercial and Operations departments
• Ensure full compliance with company procedures, data handling, and quality standards

Requirements

• Previous experience in a commercial administration, contracts administration, or similar support role, ideally within construction, utilities, or infrastructure
• Strong IT skills, including confident use of Microsoft Excel and accounting or ERP software
• Understanding of purchase order processes, subcontract administration, or invoicing
• Excellent organisational skills with the ability to manage multiple tasks and deadlines simultaneously
• High level of accuracy and strong attention to detail, particularly with financial and contractual documentation
• Ability to work independently and as part of a multidisciplinary team
• Good written and verbal communication skills
• Confident liaising with internal teams, suppliers, subcontractors, and clients
• Experience within the construction, utilities, or drainage sector

What We Offer

• Competitive salary based on experience
• Modern office-based working environment
• Pension scheme and additional benefits
• Ongoing training and professional development
• Clear progression pathway within a specialist CIPP rehabilitation company
• Supportive and professional team environment
• Opportunity to work on major wastewater infrastructure projects across the South of the UK