An engineering technologist is a professional trained in certain aspects of development and implementation of a respective area of technology. An education in engineering technology concentrates more on application and less on theory than does an engineering education. Engineering technologists often assist engineers; but after years of experience, they can also become engineers. Like engineers, areas where engineering technologists can work include product design, fabrication, and testing. Engineering technologists sometimes rise to senior management positions in industry or become entrepreneurs.

Engineering technologists are more likely than engineers to focus on post-development implementation, product manufacturing, or operation of technology. The American National Society of Professional Engineers (NSPE) makes the distinction that engineers are trained in conceptual skills, to "function as designers", while engineering technologists "apply others' designs". The mathematics and sciences, as well as other technical courses, in engineering technology programs, are taught with more application-based examples, whereas engineering coursework provides a more theoretical foundation in math and science. Moreover, engineering coursework tends to require higher-level mathematics including calculus and calculus-based theoretical science courses, as well as more extensive knowledge of the natural sciences, which serves to prepare students for research (whether in graduate studies or industrial R&D) as opposed to engineering technology coursework which focuses on algebra, trigonometry, applied calculus, and other courses that are more practical than theoretical in nature and generally have more labs that involve the hands-on application of the topics studied.

In the United States, although some states require, without exception, a BS degree in engineering at schools with programs accredited by the Engineering Accreditation Commission (EAC) of the Accreditation Board for Engineering and Technology (ABET), about two-thirds of the states accept BS degrees in engineering technology accredited by the Engineering Technology Accreditation Commission (ETAC) of the ABET, in order to become licensed as professional engineers. States have different requirements as to the years of experience needed to take the Fundamentals of Engineering (FE) and Professional Engineering (PE) exams. A few states require those sitting for the exams to have a master's degree in engineering. This education model is in line with the educational system in the United Kingdom where an accredited MEng or MSc degree in engineering is required by the Engineering Council (EngC) to be registered as a Chartered Engineer. Engineering technology graduates with can earn an MS degree in engineering technology, engineering, engineering management, construction management, or a National Architectural Accrediting Board (NAAB)-accredited Master of Architecture degree. These degrees are also offered online or through distance-learning programs at various universities, both nationally and internationally, which allows individuals to continue working full-time while earning an advanced degree.

Engineering technologists are more likely to work in testing, fabrication/construction or fieldwork, while engineers generally focus more on conceptual design and product development, with considerable overlap (e.g., testing and fabrication are often integral to the overall product development process and can involve engineers as well as engineering technologists).

Engineering technologists are employed in a wide array of industries and areas including product development, manufacturing and maintenance. They may become managers depending upon the experience and their educational emphasis on management. Entry-level positions relating in various ways to product design, product testing, product development, systems development, field engineering, technical operations, and quality control are common for engineering technologists. Most companies generally make no distinction between engineers and engineering technologists when it comes to hiring.

Beginning in the 1950s and 1960s, some post-secondary institutions in the U.S. and Canada began offering degrees in engineering technology, focusing on applied study rather than the more theoretical studies required for engineering degrees. The focus on applied study addressed a need within the scientific, manufacturing, and engineering communities, as well as other industries, for professionals with hands-on and applications-based engineering knowledge. Depending on the institution, associate's or bachelor's degrees are offered, with some institutions also offering advanced degrees in engineering technology.

In general, an engineering technologist receives a broad range of applied science and applied mathematics training, as well as the fundamentals of engineering in the student's area of focus. Engineering technology programs typically include instruction in providing support to specific engineering specialties. Information technology is primarily involved with the management, operation, and maintenance of computer systems and networks, along with an application of technology in diverse fields such as architecture, engineering, graphic design, telecommunications, computer science, and network security. An engineering technologist is also expected to have had some coursework in ethics.

In 2001, Professional organizations from different countries have signed a mutual recognition agreement called the Sydney Accord, which represents an understanding that the academic credentials of engineering technologists will be recognized in all signatory states. The recognition given engineering technologists under the Sydney Accord can be compared to the Washington Accord for engineers and the Dublin Accord for engineering technicians. The Engineering Technologist Mobility Forum (ETMF) is an international forum held by signatories of the Sydney Accord to explore mutual recognition for experienced engineering technologists and to remove artificial barriers to the free movement and practice of engineering technologists amongst their countries. ETMF can be compared to the Engineers Mobility Forum (EMF) for engineers.