Media Buyer - Creative Testing & Optimization

New York City, NY (Unknown)

$150K/yr – $250K/yrSenior LevelFull time

Posted 2 days ago

Job Summary

Own the end-to-end performance of high-volume direct-response campaigns, from rapid ad launch and testing to scaling with data-driven decisions.

  • Define launch cadences and ensure accurate tracking
  • Turn campaign data into actionable recommendations for creative and growth teams

Job Description

Responsibilities

  • Launch 200+ ads each week accurately and on schedule using an established testing framework, with consistent naming, accurate tracking, and correct targeting and campaign settings.
  • Evaluate acquisition cost, conversion volume, and spend to determine when an ad has enough data to move into scale campaigns.
  • Monitor performance, pause underperforming ads once they meet agreed decision thresholds, and direct spend toward the strongest performers.
  • Track what launched, what worked, what didn’t, and what should be tested next so results inform future decisions.
  • Give actionable feedback on the hooks, formats, messages, and concepts driving performance, helping the creative team develop stronger briefs and iterations.
  • Work with creative and compliance teams to ensure assets are approved, correctly formatted, and ready to launch.
  • Check copy, links, tracking, placements, targeting, and assets before every launch, catching mistakes before they affect performance.

Requirements

  • Proven experience buying media and optimizing direct-response campaigns, with strong hands-on skills in Meta and TikTok.
  • Experience running campaigns on Snapchat, X, and/or DSPs.
  • A track record of managing high-volume creative testing and turning winning ads into scaled campaigns.
  • A 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.
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Kalshi

4.6 Glassdoor

The first US federally regulated exchange where you can trade on the outcome of any event.Kalshi’s historical regulatory approval from the CFTC enables it to offer a new asset class called “event contracts,” which allow traders to take positions on whether a future event will happen or not. Kalshi aims to enable investors to trade on almost anything with economic relevance from Covid numbers to whether a bill will pass in Congress, broadening the historical definition of what a commodity derivative is and paving the way for the futures market to catch up to the novel risks facing the economy today. Kalshi is backed by Sequoia, Henry Kravis, Charles Schwab, and Y Combinator.

Founded in 2019
New York, New York, USA
317 employees (40 in marketing)
89% recommend to a friend
72% CEO approval

Salaries

Posted range

$150K/yr – $250K/yr

Taken straight from the job posting.

See all Kalshi salaries

Marketing Team

Marketing Team Size
34 (11% of company)
Median Career Experience
7.5 years
Median Tenure
0.6 years
Marketing Roles Posted (Last 30 Days)
1

Funding

Total Funding
$1.6B
Last Raise
$1B
Corporate Round, 25 days ago

Funding History

  • Feb 2026
    Corporate Round
  • Nov 2025
    Series E • $1B
  • Oct 2025
    Series D • $300M

Traffic Signals

Monthly Visitors
5.7M
Monthly Google Ads Budget
$586K
Traffic Source Mix
Search
28.1%
Direct
66.1%
Referral
3.7%
Social
1.4%
Paid
0.6%

Headcount Trend

Current headcount: ~370

Recent News

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Media Buyer - Creative Testing & Optimization

Kalshi · New York City, NY · Unknown