Here’s a polished version of your job posting:
Greetings,

We are seeking an experienced YouTube Advertising Specialist to help us run targeted ads on our competitor's channels and convert their viewers into subscribers and viewers for our own channel.
Scope of Work:

    Set up and optimize YouTube ad campaigns targeting specific competitor channels (we will provide the list of channels).
    Ensure ad placements, targeting, and budgets are configured for maximum efficiency.
    Analyze and report on campaign performance with actionable insights for improvement.

Requirements:

    Proven track record of successful YouTube ad campaigns.
    Expertise in Google Ads (YouTube campaigns).
    Ability to deliver measurable results in terms of conversions and audience engagement.
    Strong analytical skills for campaign monitoring and optimization.

What We Don't Need:

    SEO or general YouTube channel management.
    Assistance with content creation or channel branding.

If you are a focused ad specialist with a history of achieving success on YouTube, we’d love to hear from you! Please share your portfolio or examples of past YouTube advertising campaigns along with your application.

Let me know if you'd like additional refinements or details added!