Work at this level is characterized by the independent application of standard engineering procedures and techniques to accomplish a wide variety of work in the office and/or field. Principal In addition to independently performing the work described at the Senior Engineering Technician level, incumbents perform the level of work described below a majority of the time. (College level or vocational/technical course work in engineering, drafting, survey, mathematics or other closely related fields will substitute for the required technical engineering experience on a year-for-year basis.) Traffic control and other safety standards for public works projects. Kneeling, crouching, and bending at the waist for extended periods of time to perform surveying activities and related duties.Create an account to see the full posting, access our search engine, and more.