Advice on getting noticed by faang recruiters?

How can I make myself more marketable? My LinkedIn profile seems fine, but obviously I’m missing something. I have 5 yoe, decent algo and systems design knowledge. Strong Linux internals and automation skills. Lots of experience with all major devops tools. I list all accomplishments as: accomplished x as measured by y I don’t have a populated GitHub though, which is currently my biggest concern. A manager at G said he’d give me an interview if he were reviewing applications, and yet I haven’t gotten any callbacks since applying to SE roles at Google and Apple. Clearly I’m doing something wrong. Any advice? TC:🥜