Assistant Estimator required to work with a main contractor in their London head office. This is a great opportunity for someone early in their estimating career to gain experience across a range of tenders, support senior colleagues, and develop their commercial knowledge within a busy pre-construction environment. Key Responsibilities * Supporting the preparation and submission of tender documents, including compiling inclusions, exclusions, clarifications, and programmes of work. * Assisting in the coordination of tender information from various departments. * Working alongside Estimators and Senior Management on project submissions. * Researching and identifying subcontractors and suppliers to support the estimating process. * Reviewing and comparing quotations received from the supply chain. * Supporting the assessment of project risks (financial, technical, operational). * Attending estimating meetings and occasionally visiting site when required. You Will Need * A degree or diploma in Quantity Surveying, Construction Management, or a similar construction-related field (or working towards one). * 1–3 years' experience in an estimating or commercial support role, ideally with a main contractor. * A basic understanding of tendering processes and commercial principles. * Strong interpersonal skills and the confidence to communicate professionally with colleagues, clients, and supply chain partners. * Proficiency in Microsoft Office (Excel, Word, Outlook). * Excellent organisation, attention to detail, and time management skills. * A willingness to learn, ask questions, and take direction in a fast-paced team environment. If you are well suited to this role, please apply through the link and we will contact you for a confidential discussion