Commercial Assistant

H W Martin; Sizewell; On-site; GBP 20,000 - 24,000; Full time

Benefits offered by this job

25 Days Holiday + Bank Holidays

Company Pension

Free parking

Employee Assistance Programme

Life Assurance

Job summary

H. W. Martin (Traffic Management) Ltd is seeking a Commercial Assistant to provide administrative and commercial support for the Sizewell C Infrastructure Maintenance Project. The role involves managing commercial data, cost records, reporting, procurement activities and project documentation, ensuring accuracy and compliance.

You will collaborate with the Commercial Manager, project team and other functions to drive efficient commercial processes. This position supports career returners.

Qualifications

• GCSE English and Maths achieved.
• Level 3 or 4 Business Administration qualification.
• AAT or working towards a related qualification.
• Microsoft Office applications training, especially Excel.
• Experience in administrative, commercial, finance or business support roles.
• Experience maintaining records, reports and databases.

Responsibilities

• Provide administrative support to the Commercial Manager and wider team.
• Maintain contract records, commercial documentation and filing systems.
• Assist in client applications, quotations, compensation events and commercial correspondence.
• Maintain contract registers, trackers and audit records.
• Prepare weekly and monthly commercial reports and dashboards.
• Input, validate and collate commercial data from multiple systems.
• Support data governance and ensure data confidentiality.

Skills

MS Office proficiency

Data handling

Communication

Organizational skills

Education

GCSE English & Maths

Business Administration (Level 3/4)

AAT qualification or in progress

Tools

SharePoint

Excel

Job description

Salary:Competitive and based on experience.

Additional benefits:25 Days Holiday + Bank Holidays, Company Pension, Free parking, Employee Assistance Programme, Life Assurance.

Contract Type:Permanent

About us:

Sizewell C is a large, planned nuclear power station being built on the Suffolk coast in the UK. The project is expected to generate 3.2 GW of clean electricity, enough for 6 million homes. This is a significant part of the UK’s strategy for clean energy and energy security, with the goal of providing reliable, low-carbon power and supporting economic growth. SZC is a major project opportunity for the Martin Group of Companies.

About H. W. Martin (Traffic Management) Ltd:

We provide data-led, traffic management services within a temporary environment. Put simply, we guide vehicles around roadworks in the safest, most efficient way possible whilst permanent improvements are made to the country’s highways.

We collate data to find ways of making the temporary traffic management strategies we deploy as safe, swift and synchronised as possible.

We also provide an emergency traffic management intervention on behalf of our clients in the event of a situation that poses an immediate risk to health, life, property or the environment. For example, in the event of widespread flooding.

The Opportunity:

The Commercial Assistant will provide administrative and commercial support to the Sizewell C Infrastructure Maintenance Project commercial team. The role is responsible for assisting in the effective management of commercial data, cost records, reporting, procurement activities and project documentation, ensuring information is accurate, compliant and available to support commercial decision-making.

The postholder will work closely with the Commercial Manager, Project Director, operational teams and wider business functions to ensure the efficient administration of commercial processes across the contract.

This role would be suitable for someone looking to return to work.

Key Responsibilities:

Health, Safety and Environment

• Adhere to company, NNB and Sizewell C health, safety and environmental policies at all times.
• Actively support and promote the Behavioural Safety culture and Zero Harm initiative.
• Report any hazards, unsafe acts, and near misses.

Commercial Administration

• Provide administrative support to the Commercial Manager and wider commercial team.
• Maintain contract records, commercial documentation and filing systems.
• Support the preparation and submission of client applications, quotations, compensation events and commercial correspondence.
• Assist in maintaining contract registers, trackers and audit records.
• Ensure commercial documentation is stored and archived in accordance with company procedures.

Cost Control and Reporting

• Support the collection, validation and maintenance of cost and financial information.
• Assist with the preparation of weekly and monthly commercial reports.
• Produce accurate spreadsheets, dashboards and performance reports.
• Support the analysis of project expenditure, labour, plant and material costs.
• Assist with forecasting activities and the preparation of management information.

Procurement and Supply Chain

• Assist with raising purchase orders and tracking supplier commitments.
• Support procurement activities in accordance with company procedures.
• Maintain supplier records and supporting documentation.
• Assist with invoice verification and reconciliation against purchase orders and delivery records.

Data Management

• Accurately input, maintain and validate commercial and operational data.
• Collate information from multiple systems and sources.
• Ensure data integrity and confidentiality are maintained at all times.
• Support the development of reporting tools and performance dashboards.

Meetings and Communications

• Prepare reports, presentations and briefing materials.
• Record and distribute meeting notes and actions where required.
• Liaise with operational teams to obtain information required for commercial reporting.
• Build positive working relationships with internal stakeholders and external partners.

Compliance and Governance

• Ensure all activities are undertaken in accordance with company policies and procedures.
• Support compliance with contractual, financial and audit requirements.
• Promote company values and contribute to continuous improvement initiatives.
• Comply with all Health, Safety, Environmental and Quality requirements.

Education, Qualifications & Experience:

• GCSE (or equivalent) in English and Mathematics.
• Good standard of literacy and numeracy.
• Level 3 or Level 4 Business Administration qualification.
• AAT qualification or working towards a commercial, business or finance-related qualification.
• Training in Microsoft Office applications, particularly Excel.
• Experience in an administrative, commercial, finance or business support role.
• Experience maintaining records, reports and databases.
• Experience using Microsoft Office applications, particularly Excel.
• Experience within construction, infrastructure, highways maintenance or civil engineering.
• Experience supporting commercial or finance functions.
• Experience of procurement administration and supplier management processes.
• Experience working within a project-based environment.

Knowledge and Skills:

• Strong Microsoft Office skills, particularly Excel, Word and Outlook.
• Excellent organisational and administrative abilities.
• Ability to process and manage large volumes of data accurately.
• Strong attention to detail.
• Good communication and interpersonal skills.
• Ability to prioritise workloads and meet deadlines.
• Ability to work effectively both independently and as part of a team.
• Knowledge of SharePoint and document management systems.
• Understanding of commercial reporting processes.
• Understanding of cost management and procurement procedures.
• Experience producing reports, dashboards and performance metrics.

We are an equal opportunities employer and welcome applications from all suitably qualified persons.

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