The role of the quantity surveyor is one that is often unclear amongst the general public. This study discussed the competencies of the quantity surveyor in measuring and managing civil engineering works and also carrying out the financial management for civil engineering construction projects; also outlined the various competencies and skills required of quantity surveyors in discharging and managing their professional duties. The core activities of quantity surveyors include determining project budgets, measuring project quantities, preparing contract documentation (such as Bills of Quantities and cost control documents), administering contracts, and preparing final accounts. The study also examines recent developments in the profession, which have led to the quantity surveyor delivering a number of management related consultancy services, in response to rising client expectations and demands. The militating factors to QS participation in the Nigeria AEC industry were identified as skills and knowledge, competencies, identity or branding issues, fewer QS in public service among others. The study advocated a change in culture and the inclusion of quantity surveyors on civil engineering projects in order for the industry to leverage on the dynamism of the quantity surveying profession.