The technical interview can be tough if you don't have a solid electrical engineering background. Asked me questions such as given a battery and two wires how can you find the capacitance of the battery? Difference between heap and stack? What do you know about I^2C protocol? and other similar questions. I was surprised the questions were so difficult considering it was an entry level position.
introduce about yourself.
Wie testet man am besten Firmware?
Was sind die Aufgaben eines Betriebssystems?
About micro-controllers/ esps/ dmd displays
How Different Modules in MCU works, for example ADC and Communication protocol like CAN, SPI and I2C
Transmit numbers array between 2 controllers using a transmit function Transmit(Data, Len). Transmit function costs a lot, try to compress the data as much as you can and evaluate the compression ratio
Difference between SPI and I2C?
Where would you rate yourself with wireless sensor networks on the scale of 1 to 10?
In technical interview, firmware questions and previous experience related questions were asked. HR round was easy and straight forward aiming to see if the candidate is a good fit with their culture.
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