Signal processing engineer job description

Signal Processing Engineer

The signal processing engineer is dedicated to developing algorithms for signal processing in the broad sense. He works on projects in the fields of telecommunications, audio, video, space domain, medical imaging, etc.

Signal processing brings together a set of specialized skills for which ELSYS Design recruits in France.

Other names for this job: digital signal processing engineer, TNS engineer.


OFDM Definition

OFDM (Orthogonal Frequency Division Multiplexing) is a method of digital signal modulation in which a data stream is spread over several narrower carriers at different frequencies to reduce interference and the crosstalk effects.
OFDM technology was designed in the 1960s / 70s to ensure clean data transmission in conducive situations for interference and signal corruption when more conventional modulation schemes are used.
It is used in Wi-Fi, DSL transmissions, mobile networks, digital terrestrial television, broadcasting etc.


After collecting a need, the signal processing engineer usually conducts a state-of-the-art study. For example, he / she studies the different OFDM demodulation techniques implemented in different standards, or the automatic estimation techniques of ODFM parameters, including pilot carriers.

Then, he defines an OFDM demodulator architecture. This includes time synchronization, frequency synchronization, channel equalization from the drivers, automatic estimation of OFDM parameters etc.

According to the result of the synthesis of the state of the art, he will either take the existing, make it evolve, or design new algorithms to cover the need. In the latter case, he implements Matlab and C simulation chains for VHDL study and validation.

Become a signal processing engineer

To become a signal processing engineer, it is essential to be graduated of an engineering school or a university master’s degree, for example with a specialisation in image / audio / video processing.

PhDs in the field of signal processing who have completed a thesis whose field of application is close to the industry are also highly appreciated.

Signal Processing Engineer Skills

He has a good knowledge of applied mathematics.

He knows C, C++ and Matlab programming languages, even Python.

Technical English is of course necessary.

After a few years of experience, he can progress to positions of expert signal processing engineer, signal processing project manager or signal processing team leader. In addition to the technical skills of the position, there are managerial qualities: ability to define plan and follow the work, ensure inter-team links, these can be dispersed over many locations.


The salary of a signal processing engineer depends on several factors, mainly his training, his experience or the region where he works. In France, a young graduate can expect a salary between 33K€ and 36K€.

Job Opportunities

ELSYS Design often hires signal processing engineers in France. Find out employment opportunities on our jobs board, where it is also possible to submit an unsolicited application.