- Vacancy Reference:5141
- Contract Type:Full Time
- Temp or Perm:Permanent
- City:Somerset
- Closing Date:20 October 2026
- Salary:£29,000
Commercial Assistant
Salary: £29,000 – £38,000 per annum, depending on experience
Plus a guaranteed 8.65% monthly bonus for working as part of the team at Hinkley Point C
About the Role
We are seeking a Commercial Assistant to support the Deputy Commercial Manager with the day-to-day operation of the site Commercial Team.
The role will involve preparing payment applications, supporting cost control and procurement activity, maintaining accurate commercial records, and assisting with KPI reporting.
The Commercial Assistant will contribute to the effective commercial performance and profitability of the Hinkley Point C project by ensuring key information is accurate, well organised, and available to support timely decision-making.
This role requires a proactive approach, confidence working with numbers, and the ability to handle financial and commercial data with accuracy and attention to detail.
Why Join Us?
- Salary band of £29,000 – £38,000 per annum, depending on experience
- Guaranteed 8.65% monthly bonus associated with working as part of the team at Hinkley Point C, paid in addition to your basic salary
- 9-day fortnight, giving you a better work-life balance. You'll work Monday to Friday one week and Monday to Thursday the following week
- Current working hours are 07:30 – 16:45 Monday to Thursday and 07:30 – 12:30 on your working Friday
- 25 days annual leave, plus bank holidays
- 5% employer pension contribution
- Life assurance scheme
- Company sick pay
- Industry-leading Employee Benefits Platform offering lifestyle savings and retail discounts
- Reward and Recognition programme
- Employee Assistance Programme supporting health and wellbeing, including access to an online GP
- Opportunities for professional development within Commercial Management, including progression through university apprenticeship programmes
What You'll Be Doing
Supporting the Deputy Commercial Manager in:
- Assembling and submitting monthly payment applications
- Data entry and management across the commercial team
- Managing data reporting and tracking performance against agreed KPIs
- Compiling and analysing project and cost data
- Preparing quotations for additional and out-of-scope works
- Conducting cost/value analysis exercises
- Forecasting labour and material requirements
- Assessing project costs and contracts
- Providing cost advice to clients and project teams
- Supporting the commercial awareness of operational teams, including guiding them through annual budgets
- Creating and maintaining visual data presentations, including graphs and charts
What We're Looking For
Essential
- Strong Microsoft Excel skills, with the ability to manage large datasets, identify inconsistencies, and correct errors accurately
- Excellent numerical skills, with the ability to perform quick and accurate calculations
- Strong communication skills, with the ability to produce clear and concise reports and presentations using data from multiple sources
- Analytically and mathematically minded individual, with the ability to identify trends, risks, and anomalies in data
- Ability to work effectively as part of a team and collaborate with others to solve problems
- Strong critical thinking skills, with the ability to interpret and present data clearly in various formats
- Ability to remain calm and respond effectively under pressure
Desirable
- Familiarity with financial or commercial reporting processes
- Experience working with large datasets or data reporting tools
- Experience in data entry and data management
- A working knowledge of SAP or similar procurement software
- Experience working on large-scale projects within nuclear or similarly regulated sectors
Site Requirements
This role is based at Hinkley Point C.
- You must be able to provide a 3-year work history and required vetting process in line with HPC protocols
- You must be able to obtain the HPC pass
- The site is located remotely and a bus journey of 45 minutes each way is required to gain access
- This role is based on site and is currently operating a 9-day fortnight rota (subject to change)



