Ask HN: Building LinkedIn alternative for tech focused community

As LinkedIn have become feed flood of humble-brags, self proclaimed gurus of work life balance and unknown social connections which may never generate any value.

It may be good for professional networking & generating network for business people. Not sure, how much value it generates for software developers.

What would an alternative LinkedIn like social network look like for tech people which actually can add values in terms of jobs search, improving knowledge, helping get referral and talk directly with people who do hiring decisions?