LinkedIn posts and comments for a B2B SaaS founder

We need someone to run a founder's LinkedIn presence for a B2B SaaS company. Three parts: writing posts in his voice, opening and holding conversations in the comments under his posts and under other people's posts in our space, and replying from the company page. Ongoing work, eight to twelve posts a month plus a daily block of comment engagement. Around $1,500 a month once we are past the test, open to revisiting as it grows. We are looking for writers who have done founder or executive ghostwriting and are comfortable holding a conversation in public in someone else's voice. Not a fit if you need to own the strategy, or if your samples are mostly branded company content rather than a person speaking.