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For other uses, see Engineer (disambiguation).
Kitty Joyner - Electrical Engineer - GPN-2000-001933.jpg
Kitty Joyner, an American engineer in 1952
Names Engineer
Occupation type
Activity sectors
Applied science
Competencies Mathematics and scientific knowledge, art and design, analytical and critical thinking, engineering ethics
Education required
Engineering education
Related jobs
Scientist, architect, project manager, inventor, astronaut

Engineers design materials, structures, and systems while considering the limitations imposed by practicality, regulation, safety, and cost.[1][2] The word engineer (from the Latin ingeniator[3]) is derived from the Latin words ingeniare ("to contrive, devise") and ingenium ("cleverness").[4][5] The foundation education of an engineer is typically a 4-year bachelor's degree or in some countries, a master's degree in an engineering discipline plus 4–6 years peer-reviewed professional practice culminating in a project report or thesis.

The work of engineers forms the link between scientific discoveries and their subsequent applications to human and business needs and quality of life.[1]


In 1960, the Conference of Engineering Societies of Western Europe and the United States of America defined "professional engineer" as follows:[6]

A professional engineer is competent by virtue of his/her fundamental education and training to apply the scientific method and outlook to the analysis and solution of engineering problems. He/she is able to assume personal responsibility for the development and application of engineering science and knowledge, notably in research, design, construction, manufacturing, superintending, managing and in the education of the engineer. His/her work is predominantly intellectual and varied and not of a routine mental or physical character. It requires the exercise of original thought and judgement and the ability to supervise the technical and administrative work of others. His/her education will have been such as to make him/her capable of closely and continuously following progress in his/her branch of engineering science by consulting newly published works on a worldwide basis, assimilating such information and applying it independently. He/she is thus placed in a position to make contributions to the development of engineering science or its applications. His/her education and training will have been such that he/she will have acquired a broad and general appreciation of the engineering sciences as well as thorough insight into the special features of his/her own branch. In due time he/she will be able to give authoritative technical advice and to assume responsibility for the direction of important tasks in his/her branch.

Roles and expertise[edit]


Engineers develop new technological solutions. During the engineering design process, the responsibilities of the engineer may include defining problems, conducting and narrowing research, analyzing criteria, finding and analyzing solutions, and making decisions. Much of an engineer's time is spent on researching, locating, applying, and transferring information.[7] Indeed, research suggests engineers spend 56% of their time engaged in various information behaviours, including 14% actively searching for information.[8]

Engineers must weigh different design choices on their merits and choose the solution that best matches the requirements. Their crucial and unique task is to identify, understand, and interpret the constraints on a design in order to produce a successful result.


Engineers conferring on prototype design, 1954

Engineers apply techniques of engineering analysis in testing, production, or maintenance. Analytical engineers may supervise production in factories and elsewhere, determine the causes of a process failure, and test output to maintain quality. They also estimate the time and cost required to complete projects. Supervisory engineers are responsible for major components or entire projects. Engineering analysis involves the application of scientific analytic principles and processes to reveal the properties and state of the system, device or mechanism under study. Engineering analysis proceeds by separating the engineering design into the mechanisms of operation or failure, analyzing or estimating each component of the operation or failure mechanism in isolation, and recombining the components. They may analyze risk.[9][10][11][12]

Many engineers use computers to produce and analyze designs, to simulate and test how a machine, structure, or system operates, to generate specifications for parts, to monitor the quality of products, and to control the efficiency of processes.

Specialization and management[edit]

NASA Launch Control Center Firing Room 2 as it appeared in the Apollo era

Most engineers specialize in one or more engineering disciplines.[1] Numerous specialties are recognized by professional societies, and each of the major branches of engineering has numerous subdivisions. Civil engineering, for example, includes structural and transportation engineering and materials engineering include ceramic, metallurgical, and polymer engineering. Mechanical engineering cuts across just about every discipline since its core essence is applied physics. Engineers also may specialize in one industry, such as motor vehicles, or in one type of technology, such as turbines or semiconductor materials.[1]

Several recent studies have investigated how engineers spend their time; that is, the work tasks they perform and how their time is distributed among these. Research[8][13] suggests that there are several key themes present in engineers’ work: (1) technical work (i.e., the application of science to product development); (2) social work (i.e., interactive communication between people); (3) computer-based work; (4) information behaviours. Amongst other more detailed findings, a recent work sampling study[13] found that engineers spend 62.92% of their time engaged in technical work, 40.37% in social work, and 49.66% in computer-based work. Furthermore, there was considerable overlap between these different types of work, with engineers spending 24.96% of their time engaged in technical and social work, 37.97% in technical and non-social, 15.42% in non-technical and social, and 21.66% in non-technical and non-social.

Engineering is also an information-intensive field, with research finding that engineers spend 55.8% of their time engaged in various different information behaviours, including 14.2% actively seeking information from other people (7.8%) and information repositories such as documents and databases (6.4%).[8]

The time engineers spend engaged in such activities is also reflected in the competencies required in engineering roles. In addition to engineers’ core technical competence, research has also demonstrated the critical nature of their personal attributes, project management skills, and cognitive abilities to success in the role.[14]

Types of engineers[edit]

There are many branches of engineering, each of which specializes in specific technologies and products. Typically engineers will have deep knowledge in one area and basic knowledge in related areas. For example, mechanical engineering curricula typically includes introductory courses in electrical engineering, computer science, materials science, metallurgy, mathematics, and software engineering.

When developing a product, engineers typically work in interdisciplinary teams. For example, when building robots an engineering team will typically have at least three types of engineers. A mechanical engineer would design the body and actuators. An electrical engineer would design the power systems, sensors, and control circuitry. Finally, a software engineer would develop the software that makes the robot behave properly. Engineers that aspire to management engage in further study in business administration, project management and organizational or business psychology. Often engineers move up the management hierarchy from managing projects, functional departments, divisions and eventually CEO's of a multi-national corporation. Management Engineers also work in management consulting firms in the area of strategic management of change in engineering-driven organizations.

Branch Technologies Related Sciences Products
Architectural Engineering & Building engineering focuses on building and construction Architecture, architectural technology Buildings and bridges
Chemical Engineering Focuses on the manufacturing of chemicals and chemical production processes. Chemistry, Thermodynamics, Biology, Medicine Chemicals, Petroleum, Medicines, Raw Materials
Civil Engineering Focuses on the construction of large systems and structures. Statics, Fluid Mechanics, Soil Mechanics, Roads, Bridges, Dams, Buildings
Electrical Engineering Focuses on the design of electrical systems and circuitry. Electromagnetism, Logic, power engineering Computers, Electronics
Industrial Engineering Focuses on the design, optimization, and operation of production, logistics, and service systems and processes. Operations Research, Engineering Statistics, Applied Probability and Stochastic Processes, Methods Engineering, Production Engineering, Manufacturing Engineering, Systems Engineering, Logistics Engineering, Ergonomics Quality Control Systems, Manufacturing Systems, Warehousing Systems, Supply Chains, Logistics Networks, Queueing Systems
Mechatronics Engineering Focuses on the technology and controlling all the industrial field Process Control, Automation Robotics, Controllers, CNC
Mechanical Engineering Focuses on the development and operation of Energy Systems, Transport Systems, Manufacturing Systems, Machines and Control Systems. Dynamics, Kinematics, Statics, Fluid Mechanics, Materials Science, Metallurgy, Strength of Materials, Thermodynamics, Heat Transfer, Mechanics, Mechatronics, Manufacturing Engineering, Control Engineering Cars, Airplanes, Machines, Power Generation, Spacecraft, Buildings, Consumer Goods, Manufacturing
Metallurgical Engineering/Materials Engineering Focuses on extraction of metals from its ores and development of new materials Material Science, Thermodynamics, Extraction of Metals, Physical Metallurgy, Mechanical Metallurgy, Nuclear Materials, Steel Technology Iron, Steel, Polymers, Ceramics, Metals
Computer Engineering Focuses on the design and development of Computer Hardware & Software Systems Computer Science, Mathematics, Electrical Engineering Microprocessors, Microcontrollers, Operating Systems, Embedded Systems
Software Engineering Focuses on the design & development of Software Systems Computer Science, Mathematics, Systems Engineering Apps, Websites, Operating Systems, Embedded Systems
Mathematical Engineering Focuses on the design & development of mathematical models Computer Science, Mathematics, Electrical Engineering, Statics Scientific Computing, Datamining, Control Theory, Optimization
Management Engineering Focuses on the organization and operations management of activities across any engineering discipline Strategic Management, Project Management, Business Administration, Product Development, Product Engineering, Research, organizational psychology, Finance, Management Accounting, Leadership, Systems Engineering, Technology Management, Management Consulting, Innovation Performance Management


Main article: Engineering ethics
The Challenger disaster is held as a case study of engineering ethics.

Engineers have obligations to the public, their clients, employers, and the profession. Many engineering societies have established codes of practice and codes of ethics to guide members and inform the public at large. Each engineering discipline and professional society maintains a code of ethics, which the members pledge to uphold. Depending on their specializations, engineers may also be governed by specific statute, whistleblowing, product liability laws, and often the principles of business ethics.[15][16][17]

An engineer receiving his Order of the Engineer ring

Some graduates of engineering programs in North America may be recognized by the Iron Ring or Engineer's Ring, a ring made of iron or stainless steel that is worn on the little finger of the dominant hand. This tradition began in 1925 in Canada with The Ritual of the Calling of an Engineer, where the ring serves as a symbol and reminder of the engineer's obligations to the engineering profession. In 1972, the practice was adopted by several colleges in the United States including members of the Order of the Engineer.


Main article: Engineering education

Most engineering programs involve a concentration of study in an engineering specialty, along with courses in both mathematics and the physical and life sciences. Many programs also include courses in general engineering and applied accounting. A design course, often accompanied by a computer or laboratory class or both, is part of the curriculum of most programs. Often, general courses not directly related to engineering, such as those in the social sciences or humanities, also are required.

Accreditation is the process by which engineering programs are evaluated by an external body to determine if applicable standards are met. The Washington Accord serves as an international accreditation agreement for academic engineering degrees, recognizing the substantial equivalency in the standards set by many major national engineering bodies. In the United States, post-secondary degree programs in engineering are accredited by the Accreditation Board for Engineering and Technology.


In many countries, engineering tasks such as the design of bridges, electric power plants, industrial equipment, machine design and chemical plants, must be approved by a licensed professional engineer. Most commonly titled Professional Engineer is a license to practice and is indicated with the use of post-nominal letters; PE or P.Eng. These are common in North America, as is European Engineer (EUR ING) in Europe. The practice of engineering in the UK is not a regulated profession but the control of the titles of Chartered Engineer (CEng) and Incorporated Engineer (IEng) is regulated. These titles are protected by law and are subject to strict requirements defined by the Engineering Council UK. The title CEng is in use in much of the Commonwealth.

Many skilled / semi-skilled trades and engineering technicians in the UK call themselves engineers. A growing movement in the UK is to legally protect the title 'Engineer' so that only professional engineers can use it; a petition[18] was started to further this cause.

In the United States, licensure is generally attainable through combination of education, pre-examination (Fundamentals of Engineering exam), examination (Professional Engineering Exam),[19] and engineering experience (typically in the area of 5+ years). Each state tests and licenses Professional Engineers. Currently, most states do not license by specific engineering discipline, but rather provide generalized licensure, and trust engineers to use professional judgment regarding their individual competencies; this is the favoured approach of the professional societies. Despite this, however, at least one of the examinations required by most states is actually focused on a particular discipline; candidates for licensure typically choose the category of examination which comes closest to their respective expertise.

In Canada, engineering is a self regulated profession. The profession in each province is governed by its own engineering association. For instance, in the Province of British Columbia an engineering graduate with four or more years of post graduate experience in an engineering-related field and passing exams in ethics and law will need to be registered by the Association for Professional Engineers and Geoscientists (APEGBC)[20] in order to become a Professional Engineer and be granted the professional designation of P.Eng allowing one to practice engineering.

In Continental Europe, Latin America, Turkey and elsewhere the title is limited by law to people with an engineering degree and the use of the title by others is illegal. In Italy, the title is limited to people who both hold an engineering degree and have passed a professional qualification examination (Esame di Stato). In Portugal, professional engineer titles and accredited engineering degrees are regulated and certified by the Ordem dos Engenheiros. In the Czech Republic, the title "engineer" (Ing.) is given to people with a (masters) degree in chemistry, technology or economics for historical and traditional reasons. In Greece, the academic title of "Diploma Engineer" is awarded after completion of the five-year engineering study course and the title of "Certified Engineer" is awarded after completion of the four-year course of engineering studies at a Technological Educational Institute (TEI).


The perception and definition of the term 'engineer' varies across countries and continents.

19th century engineer Isambard Kingdom Brunel by the launching chains of the SS Great Eastern


British school children in the 1950s were brought up with stirring tales of "the Victorian Engineers", chief amongst whom were Brunel, the Stephenson, Telford and their contemporaries. In the UK, "engineering" has more recently been styled as an industry sector consisting of employers and employees loosely termed "engineers" who included semi-skilled trades. However, the 21st-century view, especially amongst the more educated members of society, is to reserve the term Engineer to describe a university-educated practitioner of ingenuity represented by the Chartered (or Incorporated) Engineer qualifications. However, a large proportion of the UK public still thinks of "Engineers" as skilled trades or even semi-skilled tradespeople with a high school education. And UK skilled and semi-skilled trades style themselves as "Engineers". This has created confusion in the eyes of the public to understand what professional engineers actually do from fixing car engines, TV's, fridges to designing and managing the development of aircraft, space craft, power stations, infrastructure, and other complex technological systems .


In France, the term 'ingénieur" (engineer) is not a protected title and can be used by anyone, even by those who do not possess an academic degree.

However, the title "Ingénieur Diplomé" (Graduate Engineer) is an official academic title that is protected by the government and is associated with the "Diplôme d'Ingénieur", which is one of the most prestigious academic degrees in France. Anyone misusing this title in France can be fined a large sum and jailed, as it is reserved for graduates of French engineering grandes écoles that provide highly intensive training in science and engineering. Among such institutions, the most renown (and hardest to gain admission) are Ecole Centrale Paris (Centrale), Ecole des Mines de Paris (Mines Paristech), Ecole Nationale Supérieure d'Arts et Métiers, Ecole Polytechnique, and Ecole des Ponts ParisTech. Engineering schools which were created during the French revolution have a special reputation among the French people, as they helped to make the transition from a mostly agricultural country of late 18th century to the industrially developed France of the 19th century. A great part of 19th century France's economic wealth and industrial prowess was created by engineers that have graduated from Ecole Centrale Paris, Ecole des Mines de Paris, or Ecole Polytechnique. This was also the case after the WWII when France had to be rebuilt.

Before the "réforme René Haby" in the 70's, it was very difficult to be admitted to such schools, and the French ingénieurs were commonly perceived as the nation's elite (hence the term "faire les Grandes Écoles" in language of older people). However, after the Haby reform and a string of further reforms (Modernization plans of French universities), several engineering schools were created which can be accessed with relatively lower competition, and this reputation as being part of the French elite now applies to those from 'top' engineering schools for engineers, École Nationale d'Administration (ENA) for managers or politicians and École Normale Supérieure (ENS) for researchers in science and humanities. Engineers are less highlighted in current French economy as industry provides less than a quarter of the GDP.

North America[edit]

In the US and Canada, engineering is a regulated profession whose practice and practitioners are licensed and governed by law. Licensed professional engineers in Canada and the USA are referred to as P.End (Canada) and PE (USA). A 2002 study by the Ontario Society of Professional Engineers revealed that engineers are the third most respected professionals behind doctors and pharmacists.[21]

Auto rice milling machinery in Bangladesh

In Ontario, and all other Canadian provinces, the "title" Engineer is protected by law and any non-licensed individual or company using the title is committing a legal offense, and can get fined. Companies usually prefer not to use the title except for license holders because of liability reasons, for instance, if the company filed a lawsuit and the judge, investigators, or lawyers found that the company is using the word engineer for non licensed employees this could be used by opponents to hinder the company's efforts.

Asia, Africa, and Middle East[edit]

In the Indian subcontinent, Russia, Middle East, Africa, and China, engineering is one of the most sought after undergraduate courses, inviting thousands of applicants to show their ability in highly competitive entrance examinations.

In Egypt, the educational system makes engineering the second-most-respected profession in the country (after medicine); engineering colleges at Egyptian universities require extremely high marks on the General Certificate of Secondary Education (Arabic: الثانوية العامة‎‎ al-Thānawiyyah al-`Āmmah)—on the order of 97 or 98%—and are thus considered (along with the colleges of medicine, natural science, and pharmacy) to be among the "pinnacle colleges" (كليات القمة kullīyāt al-qimmah).

In the Philippines and Filipino communities overseas, engineers who are either Filipino or not, especially those who also profess other jobs at the same time, are addressed and introduced as Engineer, rather than Sir/Madam in speech or Mr./Mrs./Ms. (G./Gng./Bb. in Filipino) before surnames. That word is used either in itself or before the given name or surname.

Corporate culture[edit]

In companies and other organizations, there is sometimes a tendency to undervalue people with advanced technological and scientific skills compared to celebrities, fashion practitioners, entertainers, and managers. In his book, The Mythical Man-Month,[22] Fred Brooks Jr says that managers think of senior people as "too valuable" for technical tasks and that management jobs carry higher prestige. He tells how some laboratories, such as Bell Labs, abolish all job titles to overcome this problem: a professional employee is a "member of the technical staff." IBM maintain a dual ladder of advancement; the corresponding managerial and engineering or scientific rungs are equivalent. Brooks recommends that structures need to be changed; the boss must give a great deal of attention to keeping his managers and his technical people as interchangeable as their talents allow.

See also[edit]


  1. ^ a b c d Bureau of Labor Statistics, U.S. Department of Labor (2006). "Engineers". Occupational Outlook Handbook, 2006-07 Edition. Retrieved 2006-09-21. 
  2. ^ National Society of Professional Engineers (2006). "Frequently Asked Questions About Engineering". Archived from the original on 2006-05-22. Retrieved 2006-09-21.  Science is knowledge based on observed facts and tested truths arranged in an orderly system that can be validated and communicated to other people. Engineering is the creative application of scientific principles used to plan, build, direct, guide, manage, or work on systems to maintain and improve our daily lives.
  3. ^ "The Term 'Architect' in the Middle Ages". JSTOR 2856447. 
  4. ^ Oxford Concise Dictionary, 1995
  5. ^ "engineer". Oxford Dictionaries. April 2010. Oxford Dictionaries. April 2010. Oxford University Press. 22 October 2011
  6. ^ Steen Hyldgaard Christensen, Christelle Didier, Andrew Jamison, Martin Meganck, Carl Mitcham, and Byron Newberry Springer. Engineering Identities, Epistemologies and Values: Engineering Education and Practice in Context, Volume 2, p. 170, at Google Books
  7. ^ A. Eide, R. Jenison, L. Mashaw, L. Northup. Engineering: Fundamentals and Problem Solving. New York City: McGraw-Hill Companies Inc.,2002
  8. ^ a b c Robinson, M. A. (2010). "An empirical analysis of engineers' information behaviors". Journal of the American Society for Information Science and Technology. 61 (4): 640–658. doi:10.1002/asi.21290. 
  9. ^ Baecher, G.B.; Pate, E.M.; de Neufville, R. (1979). "Risk of dam failure in benefit/cost analysis". Water Resources Research. 16 (3): 449–456. Bibcode:1980WRR....16..449B. doi:10.1029/wr016i003p00449. 
  10. ^ Hartford, D.N.D. and Baecher, G.B. (2004) Risk and Uncertainty in Dam Safety. Thomas Telford
  11. ^ International Commission on Large Dams (ICOLD) (2003) Risk Assessment in Dam Safety Management. ICOLD, Paris
  12. ^ British Standards Institution (BSIA) (1991) BC 5760 Part 5: Reliability of systems equipment and components - Guide to failure modes effects and criticality analysis (FMEA and FMECA).
  13. ^ a b Robinson, M. A. (2012). "How design engineers spend their time: Job content and task satisfaction". Design Studies. 33 (4): 391–425. doi:10.1016/j.destud.2012.03.002. 
  14. ^ Robinson, M. A.; Sparrow, P. R.; Clegg, C.; Birdi, K. (2005). "Design engineering competencies: Future requirements and predicted changes in the forthcoming decade". Design Studies. 26 (2): 123–153. doi:10.1016/j.destud.2004.09.004. 
  15. ^ American Society of Civil Engineers (2006) [1914]. Code of Ethics. Reston, Virginia, USA: ASCE Press. Retrieved 2011-06-11. 
  16. ^ Institution of Civil Engineers (2009). Royal Charter, By-laws, Regulations and Rules. Retrieved 2011-06-11. 
  17. ^ National Society of Professional Engineers (2007) [1964]. Code of Ethics (PDF). Alexandria, Virginia, USA: NSPE. Retrieved 2006-10-20. 
  18. ^ "Make 'Engineer' a protected title - Petitions". Petitions - UK Government and Parliament. 
  19. ^ [1] NCEES is a national nonprofit organization dedicated to advancing professional licensure for engineers and surveyors.
  20. ^ "APEGBC - Association of Professional Engineers and Geoscientists of British Columbia". 
  21. ^ Ontario Society of Professional Engineers, 2002, Engineering: One of Ontario's most respected professions
  22. ^ The Mythical Man-Month: Essays on Software Engineering, p119 (see also p242), Frederick P. Brooks, Jr., University of North Carolina at Chapel Hill, 2nd ed. 1995, pub. Addison-Wesley