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Unlike some of the other posters here, I have decided to choose a career in embedded systems. When I first graduated with a degree in mechanical engineering, I got a job in working on embedded systems for a local robotics company. But this company uses STM32 and the STM32CubeIDE abstracts away a lot of the low level details, so basically I was doing some stuff that is really similar to arduino programming which I'm sure other companies don't value that much. Added to the fact that as a mechanical engineering grad, I did not take CS courses and was stumped by some data structures and algorithms questions that other companies asked when I tried going for interviews. I would like to ask Dr Rajesh/Mr Yeo Kheng Meng for some advice. Besides knowing C and some data structures and algorithms, as well as FreeRTOS, the communication protocols (SPI, UART, I2C), what are some other skills that an embedded software engineer must know to have a future in this field? Thanks.