Any tips for finding a remote job as a senior software engineer?

Hi,

I am looking for a remote senior software engineer position. Most of my career I have been using connections to move from one job to another but this time I haven't had the luck, so I am mostly blindly applying through LinkedIn.

I know the general tips but I would like to get some more specific tips to improve my chances.

How can I make my CV stand out? I feel I am getting rejected by positions that are way below my qualifications. I have wondered if I should be updating my CV according to the stack of the position I am applying for. Throughout my career I have focused on building transfarable skills and as a result I have worked with a wide variety of technologies and it feels like I am being penalized for that.

Are there any job boards that may be better than LinkedIn? I am tired of skimming through ads about fintech and AI positions. I am not interested in those and I would prefer to work somewhere that I genuinely I am contributing something in the world. Also, I would be interested on job boards on the Fediverse, especially if it meant that my resume is read by humans and not machines.

How can I avoid time wasters? I had applied to Canonical, after 8 interviews and a bunch of offline steps, I was rejected. While the interviews were fun, I feel I have wasted a lot of time and energy for a someone that was not genuinely interested in hiring.

Anything else I should be paying attention to?