
Commercial Assistant
Job Description
Posted on: July 5, 2026
United Infrastructure is a dynamic and rapidly expanding business, focused on delivering critical infrastructure projects, across the utility and social infrastructure sectors. Our team of highly skilled and hardworking specialists deliver innovative solutions to the complex challenges our clients face. Our company is split into two business areas: Utility Infrastructure – Our team of Utility Infrastructure specialists design, build and maintain critical water, energy (gas), power and telecoms infrastructure, for the UK’s largest network owners and operators. Social Infrastructure - Our team of Social Infrastructure specialists revitalise homes and communities by carrying out a wide range of work, from retrofit to refurbishment, and maintenance. Equal Opportunities Statement - At United Infrastructure, we are committed to making every interaction a positive and inclusive experience. If there is anything we can do to support you, remove barriers, or make the process more accessible, please let us know — we want this to be the best possible experience for you. United Infrastructure is a dynamic, rapidly expanding business, delivering critical infrastructure tacross the UK. With a strong focus on safety, efficiency, and long-term value, United Infrastructure partners with clients across the civil, industrial, and commercial sectors to deliver projects that meet the highest standards of performance and sustainability. Following the acquisition of Glenelly, United Infrastructure has expanded its technical capabilities, geographic reach, and depth of expertise. Glenelly’s established reputation and skilled workforce now strengthen United Infrastructure’s ability to deliver integrated, end-to-end infrastructure solutions while maintaining the same commitment to quality and client satisfaction. Together, United Infrastructure and Glenelly combine experience, innovation, and local knowledge to support complex projects and long-term infrastructure development. Job Description Glenelly Infrastructure Solutions has an exciting opportunity for a talented Commercial Assistant to join our Power & Civils Distribution business in a role based in Kilmarnock. You will be working on the commercial delivery of power distribution contracts that the company work on for Scottish Power Energy Networks. As a Commercial Assistant you should have PC Skills to include, Outlook, Excel, Word and PowerPoint. Your CV and experience should demonstrate your ability to work to tight deadlines and without supervision when required, and you should be a self motivator, able to take responsibility for your own workload, Responsibilities will include but are not limited to:
- Verifying and applying costs to Projects
- Monitoring Subcontractor Worksheets against plan
- Checking/validating Committed/Actual costs against plan
- Producing reports and documents as required
- Taking, inputting and submitting the workforce timesheets as required
- Maintaining the computer and hard based filing system, including updating the registers.
This Commercial Assistant role will join an established team working on a large project in Kilmarnock, you must have strong communication skills and experience of dealing with internal and external stakeholders, as well as maintaining KPIs and SLAs. You will report to the Commercial and Finance Director and prepare reports and analysis as required. Candidates with experience as a Commercial Assistant, Commercial Administrator, or Office Administrator in construction, power and utilities, or engineering industries would be of specific interest. Join us at United Infrastructure and be part of our mission to deliver innovative and sustainable solutions to the complex infrastructure needs of the UK.
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