How can I switch careers seamlessly

Hey everyone, I'm currently an SDE working with database internals at AWS. I've been working here since I graduated in 2021. However, my degree was more hardware/low level focused as that is where my interest lies. I'm wondering how to go about switching from database internals to say FPGA/SoC/Firmware engineer.? Has anyone successfully done a career change like this after working for about 4 years in one field?