Optimizing Social Media for Fundraising

I'm needing assistance with social media marketing to stimulate a fundraising campaign. The project has 3 main focal points: Facebook, Instagram, and Twitter. The primary purpose is to propagate our fundraising campaign, encouraging generous contributions.
Ideal candidates should be proficient in:
- Social media strategy building
- Copywriting and visual content creation for fundraising
- Platform-specific trends (Facebook, Instagram, and Twitter)
- Previous experience in fundraising through social media will be a plus.