Infectious diseases caused by bacteria manifestation are the leading cause of the death of thousands of people, especially in developing countries, every year Worldwide. There is an increased demand for the rapid detection of pathogenic agents that cause these infections. Most widely a biochemical tests were used to detect the bacteria, these tests can accelerate the detection of bacteria but still need time to sense bacterial infection that can reach up to 30 hours under optimal conditions. Therefore, the need for developing an easy to use, portable, lightweight, device capable of detecting the bacteria is essential; it should be with high sensitivity, and very short time of detection. This paper presents a prototype of a platform for biomolecular recognition detection. The system is based on single magnetic tunnel junction sensors (STJ) that performs biorecognition by utilizing magnetic nanoparticles, which can provide an accurate result in short time.