Negative Content and Google Penalty Recovery

I'm facing both negative content appearing in search results and a Google penalty affecting my website traffic. I've contacted various websites to remove some of this content but to no avail.

Ideal Skills and Experience:
- Proven track record in online reputation management
- Expertise in SEO strategies, specifically content creation and backlink building
- Experience in handling Google penalties
- Proficiency in technical SEO adjustments
- Strong communication skills for liaising with websites

Please provide a detailed plan on how you can help with these issues.