Job Description

Aaron HV Systems Limited is part of the Aaron Engineering Group, a multi-disciplined group of companies providing expert services, solutions and resource to the Property, Rail and HV Electrical Sectors in the UK.

Established for over 25 years, Aaron Engineering Group works with customers to deliver specialist engineering solutions that provide optimal performance for their projects' needs.

We are looking to hire a full time Commercial & Tender Assistant who will play a critical role in advancing this mission.

Working pattern:

Office-based with 1 day per week WFH

Contract:

Full-time preferred; part-time may be considered

Salary:

27,000-32,000

per annum (dependent on experience)

Reporting to:

Managing Director

Role purpose

The Commercial & Tender Assistant supports Aaron HV Systems' commercial and tendering activities across high-voltage engineering projects. This role is ideal for someone who is organised, comfortable working with documents and numbers, and keen to develop in a supportive environment.

You will assist with tender submissions and follow ups, document control, supply chain enquiries, and general commercial administration--helping the business submit high-quality bids and maintain strong commercial governance across live projects.

Key responsibilities

Tender and bid support

Assist with preparation and submission of tender documents, ensuring completeness, formatting and compliance with instructions. Support compilation of bid packs (technical/commercial), including CVs, project sheets, policies, insurances, and schedules. Maintain tender trackers, clarifications logs, portals logins, and submission deadlines. Help collate supplier and subcontractor quotations, ensuring they are received on time and recorded accurately. Assist with basic take-offs, pricing schedules and rate builds (training provided). Support post-tender activities such as bid queries, tender interviews and feedback capture.

Commercial administration support

Assist with document control for commercial correspondence (NEC/Client formats where applicable). Maintain records of quotations, purchase orders, variations, and supporting evidence for commercial claims. Support the team with monthly valuation/assessment preparation (training provided). Organise commercial filing systems (SharePoint/Teams or equivalent), maintaining accurate version control.

General office and coordination

Liaise professionally with clients, suppliers and internal teams (engineering, construction, HSEQ). Produce meeting notes/actions when required and follow up with relevant parties. Maintain registers, trackers and simple reports for management visibility.

Person specification

Essential

Strong organisation skills and attention to detail (deadlines, version control, accuracy). Competent with Microsoft Office (especially Excel, Word, Outlook). Willingness to learn commercial and tendering processes; positive, proactive attitude. Ability to handle sensitive and confidential commercial information appropriately.

Desirable (not required)

Any prior exposure to tenders, estimating, QS/commercial admin, construction administration or engineering. Familiarity with common contract types (e.g., NEC) or bid portals (e.g., Ariba/Bravo/Proactis). Experience using SharePoint/Teams document control structures. Interest in construction, utilities or electrical / HV sectors.

Working arrangements

Office-based role in

Henley-in-Arden

. WFH up to 1 day per week Part-time may be considered for the right candidate (please indicate preferred hours in your application).
Job Types: Full-time, Permanent

Pay: 27,000.00-32,000.00 per year

Benefits:

Company events Company pension Private medical insurance Work from home
Work Location: In person