Multi-Platform Social Media Advertising

I'm looking to run a social media advertising campaign across Facebook, Instagram, and Twitter. The objective is to reach a specific target audience based on age group and gender. Though interests are important, they're secondary to the primary focus on age and gender.

Key Requirements:
- Implementing a multi-platform strategy to effectively reach our audience
- Creating compelling, engaging content that will resonate with the target demographic
- Monitoring and optimizing the campaign based on real-time performance data
- Delivering results within a $500 - $1000 budget

The ideal freelancer for this project would have:
- Proven experience in running successful social media advertising campaigns across Facebook, Instagram, and Twitter
- In-depth knowledge of audience targeting, particularly based on age group and gender
- Strong creative skills to develop content that stands out and engages the target audience
- A track record of delivering campaigns within budget, with a clear understanding of how to optimize spend for maximum impact

I'm looking for someone who can deliver a high-quality, results-driven campaign on time and within budget. Please provide examples of your previous work in your proposal.