La ingeniería de telecomunicaciones (o de telecomunicación) es una rama de la ingeniería, que resuelve problemas de transmisión y recepción de señales e interconexión de redes. Es la disciplina de aplicación de la telecomunicación, término que se refiere a la comunicación a distancia, generalmente a través de la propagación de ondas electromagnéticas. Esto incluye muchas tecnologías, como radio, televisión, teléfono, comunicaciones de datos y redes informáticas como Internet. La definición dada por la Unión Internacional de Telecomunicaciones (ITU, International Telecommunication Union) para telecomunicación es toda emisión, transmisión y recepción de signos, señales, escritos e imágenes, sonidos e informaciones de cualquier naturaleza, por hilo, radioelectricidad, medios ópticos u otros sistemas electromagnéticos.

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'Telecommunications engineering, or telecoms engineering', is an engineering discipline that brings together all electrical engineering disciplines including computer engineering with systems engineering to enhance telecommunication systems. The work ranges from basic circuit design to strategic mass developments. A telecommunication engineer is responsible for designing and overseeing the installation of telecommunications equipment and facilities, such as complex electronic switching systems, copper wire telephone facilities,fiber optics cabling, IP data systems, Terrestrial radio link systems for conventional communications and process information. Telecommunication engineering also overlaps heavily with broadcast engineering. Telecommunication is a diverse field of engineering which is connected to electronics, civil, structural, and electrical engineering. Ultimately, telecom engineers are responsible for providing the method for customers to have telephone and high-speed data services. It helps people who are closely working in political and social fields, as well accounting and project management. Telecom engineers use a variety of equipment and transport media available from a multitude of manufacturers to design the telecom network infrastructure. The most common media used by wired telecommunications companies today are copper wires, coaxial cable, and fiber optics. Telecommunications engineers use their technical expertise to also provide a range of services and engineering solutions revolving around wireless mode of communication and other information transfer, such as wireless telephony services, radio and satellite communications, internet and broadband technologies. Most of a telecom engineer's work is carried out on a project basis with tight deadlines and well-defined milestones for the delivery of project objectives. Telecommunication engineers are involved across all aspects of service delivery, from carrying out feasibility exercises and determining connectivity to preparing detailed, technical and operational documentation. This often leads to creative solutions to problems that often would have been designed differently without the budget constraints dictated by modern society. In the earlier days of the telecom industry, massive amounts of cable were placed that were never used or have been replaced by modern technology such as fiber optic cable and digital multiplexing techniques. Telecom engineers are also responsible for overseeing the companies' records of equipment and facility assets. Their work directly impacts assigning appropriate accounting codes for taxes and maintenance purposes, budgeting and overseeing projects.

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