Growth Marketing Associate

About Onyx.

Onyx is building the market for people who enjoy being right. Our consumer platform lets people take positions on what happens next across sports, prediction markets, crypto, financial markets, politics, culture, and real-world events.

More than one million users have already found Onyx. Now, we’re bringing that same energy into regulated financial markets through Onyx Predictions, a CFTC-registered introducing broker and NFA member.

In June 2026, we raised a $20 million Series A led by Payward, the parent company of Kraken, valuing Onyx at $220 million less than one year after emerging from beta. Our team comes from Jane Street, DraftKings, Robinhood, xAI, SIG, HRT, and Harvard.

We’re building Onyx in New York with a small team, serious momentum, and no interest in moving slowly. The product is live. The market is growing. The category is still ours to define.

The Role.

We’re hiring a Growth Marketing Associate to help more people discover Onyx, understand the product, and keep coming back.

You’ll support campaigns across paid and owned channels, help bring marketing ideas to life around sports and cultural moments, and use performance data and customer insight to improve results. You’ll work closely with Growth, Product, Creative, Partnerships, and Compliance across a broad range of marketing projects.

What You’ll Do:

• Support integrated marketing campaigns that drive customer acquisition, engagement, and retention.
• Help plan campaigns around major sporting events, product launches, and cultural moments.
• Coordinate campaigns across paid media, social, creators and affiliates, CRM, content, and partnerships.
• Help turn business goals and customer insights into campaign plans, creative briefs, messaging, and success measures.
• Coordinate with internal teams and external partners on creative, timelines, and campaign execution.
• Monitor campaign performance and help identify opportunities to improve results.
• Support tests across creative, messaging, audiences, and channels; share findings with the team.
• Help track results and communicate updates and recommendations to cross-functional partners.
• Look for ways to improve campaign workflows and day-to-day marketing operations.
• Work with Compliance and other teams to help ensure marketing is accurate and follows applicable requirements.

What You’ll Bring:

• 2+ years of experience in growth, integrated, digital, or performance marketing.
• Experience supporting campaigns across multiple channels.
• Familiarity with digital advertising, campaign measurement, or performance optimization.
• Comfort using customer or campaign data to understand what is working.
• Strong organization and attention to detail, with the ability to manage multiple projects and deadlines.
• Clear communication skills and the ability to work across teams.
• Initiative, good judgment, and a willingness to take ownership in a fast-moving environment.
• An interest in sports, consumer products, or prediction markets.

Even Better If You Have:

• Experience in sports, gaming, fintech, trading, or another regulated consumer business.
• Exposure to creator, affiliate, or partnership campaigns.
• Familiarity with paid social, paid search, programmatic media, or CRM.
• Experience supporting campaigns around live events or cultural moments.

Location:

• This role is based in Onyx’s NoHo, Manhattan office, with core in-office days Tuesday through Thursday.
• Candidates must be authorized to work in the United States. Onyx is unable to provide employment sponsorship for this position.

Compensation & Benefits:

• $75,000-$95,000 base salary, plus equity.
• Fully paid medical, dental, and vision coverage.
• Unlimited PTO.
• Commuter benefits.

Why Onyx?

Onyx is for people with conviction.

We hire talented people, give them meaningful ownership, and expect them to use it. Our teams stay small, the work stays visible, and the distance between an idea and production stays short.

Onyx moves quickly because our markets move quickly. Titles matter less than judgment, initiative, and the quality of what you ship. Good ideas can come from anywhere, but the person willing to make the call is expected to follow it through.

We value people who are ambitious without ego, intellectually honest, comfortable with uncertainty, and energized by hard problems. We debate openly, decide quickly, and take responsibility for the result.

Come build what’s next with us.