My friend just made this same journey, returning to the workforce after being a SAHM for a bunch of years. One thing she did which probably helped was publish

My friend just made this same journey, returning to the workforce after being a SAHM for a bunch of years. One thing she did which probably helped was publish YouTube videos about tech topics. She'd just pick a topic, research it, and make a training video on it. She also started using twitter a lot and having conversations with prolific tweeters in her area of expertise. Basically she upped her public profile and got noticed.