Commercial Assistant

Meet the recruiter

Liv Staples

Benefits

 
Life assurance


Kier Rewards


Additional holiday purchase opportunities


Matched pension scheme up to 7.5%


Enhanced family leave & policies


Share plan schemes


Free health & wellbeing services


Opportunity to purchase health benefits & insurance

View all Rewards & Benefits

Commercial Assistant

View favourites

We're looking for a Commercial Assistant to join our South West Water Network Service Alliance team based in Dowrglann, St. Austell.

Location: Dowrglann, St. Austell - some remote working available, with regular travel to the office required.
Hours: 39.5 per week 

We are unable to offer certificates of sponsorship to any candidates in this role.

Join our collaborative team and play a vital role in supporting the delivery of our South West Water Network Service Alliance Term Service Contracts. Based in our St. Austell office with hybrid working available, you'll be an essential part of our commercial team, helping to maximise value and ensure processes run smoothly. This is a fantastic opportunity to develop your career in a supportive environment where your attention to detail and organisational skills will truly shine.

What will you be responsible for?

As a Commercial Assistant, you'll be working within the commercial team, supporting them in delivering successful outcomes for our client. Your day to day will include:

  • Assisting with job costing and cost feedback for a variety of projects, ensuring accuracy and completeness
  • Liaising with delivery managers and depot feedback clerks to ensure all paperwork is complete and submitted on time
  • Recording and monitoring labour, plant, and subcontract costs across the contract
  • Verifying work order outcomes and generating reports from Power BI, analysing data to provide clear narratives for management and clients
  • Supporting the payment process for sub-contractors, ensuring deadlines are met and accuracy is maintained

What are we looking for?

This role of Commercial Assistant is great for you if you:

  • Have excellent IT skills and feel confident working with computers, particularly Microsoft Excel
  • Possess strong communication skills, both written and verbal, and can build positive relationships with colleagues and stakeholders
  • Are methodical, organised, and have a keen eye for detail, with the ability to work to tight deadlines
  • Can prioritise your workload effectively and work both independently and as part of a supportive team
  • You have high levels of literacy and numeracy skills, and a desire to see tasks through to completion

We're all about finding potential here at Kier, and transferrable skills are always welcome! So, even if you don't tick every box, please apply and we can have a chat.

If you would like to explore more about the incredible growth and scale of our water business, dive into our diverse project portfolios, and uncover both current and future career opportunities, you can see more information about our water business here. There's never been a better time to get involved, register your interest today and take the first step toward a rewarding career with us!

Rewards and benefits

We're proud to be able to offer our brilliant people a wide variety of benefits that you can tailor to your needs. You can see more information of benefits here.

Diversity and inclusion

Making Kier a diverse and inclusive place to work is a huge priority for us. We're proud of the steps we've taken so far, but we know we must always do more. Our employees are key in shaping Kier's diversity and inclusion initiatives and our people have made a huge impact on how we work, by using their experiences to shape our policies. You can see our D&I action plan here.

As a Disability Confident employer, we will ensure that a fair and proportionate number of disabled applicants that meet the minimum criteria for this role will be offered an interview.

We look forward to seeing your application to #joinkier.

  • Location:  St Austell
  • Vacancy ID:  10819
  • Background check:   None
  •  Closing date: 6 May 2026
  • Flexible Working:  No
    Flexible working could include part time, job share, condensed hours, or flexible start/end times.


 

Related Vacancies

Apply Now