Media Buyer - Creative Testing & Optimization

The role

This person will scale paid acquisition through creative testing and daily campaign optimization. They will launch over 200 ads each week across Meta, TikTok, Snapchat, X, and DSPs.

What you will do

• Launch 200+ ads each week using an established testing framework.
• Evaluate acquisition cost, conversion volume, and spend to determine when to move ads into scale campaigns.
• Monitor performance and pause underperforming ads.
• Direct spend toward the strongest performers.
• Track launch results to inform future decisions.
• Give actionable feedback on hooks, formats, messages, and concepts to the creative team.
• Work with creative and compliance teams to ensure assets are approved and correctly formatted.
• Check copy, links, tracking, placements, targeting, and assets before every launch.

Required qualifications

• Proven experience buying media and optimizing direct-response campaigns.
• Strong hands-on skills in Meta and TikTok.
• Experience running campaigns on Snapchat, X, and/or DSPs.
• Track record of managing high-volume creative testing and turning winning ads into scaled campaigns.
• Strong understanding of customer acquisition cost (CAC), cost per acquisition (CPA), and return on ad spend (ROAS).
• Sound judgment about when an ad has enough spend and conversion data to scale, continue testing, or pause.
• Strong organizational skills and comfort managing hundreds of ads across multiple platforms.
• Exceptional attention to detail and the ability to execute quickly while maintaining accuracy.
• The ability to turn campaign data into clear recommendations for creative and growth teams.

Benefits

• equity
• benefits

About the company

Kalshi has defined a new category of prediction markets. The company allows people to trade on the outcome of any events and turn questions about the future into financial assets.