Advice for a new Deploy SIL Engineer??

Hi all, So, I come from a security background where I ran a security consulting firm for just about 10 years with my family, and and I have a master's in security, CISSP, CASP+ and other certs, so it is definitely a field I love and I love learning, but, the opportunity came up to take on this new role and, I have always had an interest in software security so I feel I can pursue that more with this role but, I was just wondering if anyone has advice on what I should brush up on, or learn, maybe a coding language? This is in the automotive sector so I am super excited 😄 and thank you all again for your input and advice!