The categories are defined as follows: Best qualified - applicants possessing experience that substantially exceeds the minimum qualifications of the position including all selective factors, and who are highly proficient in all requirements of the job and can perform effectively in the position; Highly qualified - applicants possessing experience that exceeds the minimum qualifications of the position including all selective factors, and who are proficient in most of the requirements of the job; Well qualified - applicants possessing experience that meets the minimum qualifications of the position including all selective factors, and who are proficient in some, but not all, of the requirements of the job; and. Performing maintenance or construction work, including estimating material and labor costs for a variety of construction or maintenance projects (such as construction or maintenance of brick, frame, structural steel, reinforced concrete, and other type structures ranging from one- or two-story buildings to larger structures), directing actual work operations, and maintaining appropriate contacts with the organization funding the project.