Growth Marketing Lead

About Ostium

Ostium is on a simple mission: make it possible for anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with full transparency. No brokers, no freezes, no hidden spreads. We’re replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built onchain. Every trade, deposit, and withdrawal is verifiable through open, auditable code. We’ve raised $27.9M+ from General Catalyst, Jump, LocalGlobe, Susquehanna (SIG), GSR, Alliance DAO, Soma Capital, Balaji Srinivasan, Meltem Demirors, and others.

About the role

As a Growth Marketing Lead, you'll own user acquisition end-to-end and unlock new channels. You'll be the person who strategizes where our next 10k traders come from — and execute the experiments to prove it.

This is a zero-to-one role. You'll start as a hands-on operator running campaigns and growth experiments alongside our Head of Marketing, creative, social, and BD team. As channels and tactics are validated, you'll contribute to building out the team that scales.

What you'll own

• Net new user acquisition.
• Channel discovery and arbitrage.
• Influencer and creator strategy.
• SEO and content.
• Lifecycle and email.
• Paid acquisition.
• Funnel and analytics.

Who you are

• 2+ years in growth/performance marketing, ideally in crypto, consumer fintech, or a trading platform.
• Zero-to-one operator.
• High agency, full ownership.
• Quantitative and analytical.
• Writes well.
• Operator and executor.
• Crypto-native or a trader.

Bonus points

• Prior experience growing a product in regulated or semi-regulated environments where paid channels are constrained (iGaming, crypto, CFDs).
• Affiliate and IB (introducing broker) program experience.
• Have run successful neodistribution tactics such as clipping, TikTok, or YouTube creator programs at scale.
• Hands-on with attribution and AI tooling for marketing and growth.
• You are an active trader yourself.
• Dream profile: you've grown a CFD, brokerage, or retail trading platform (e.g. IBKR, eToro, Plus500, Robinhood, Revolut, Webull, Trading212, XTB, IG, Capital.com, Public, OANDA, Pepperstone). You know how traders are acquired and what makes them deposit.

NYC Pay Transparency Disclosure:

Salary Range: $100,000 to $250,000 annually plus benefits.

This salary range is based on the current available market data, and represents the expected salary range for this role. Ostium has minimal hierarchy and few titles, but has broad ranges of experience represented within roles. Should you have compensation expectations that exceed these bands, we'd love to hear from you and would welcome you to reach out to further discuss.

Commitment to Equal Opportunity

Ostium is committed to creating a culture of inclusion and belonging, and we are proud to be an equal opportunity employer. We believe it is our collective responsibility to uphold these values and encourage candidates from all backgrounds to join us in our mission. All qualified applicants will be treated with respect and receive equal consideration for employment without regard to race, color, creed, religion, sex, gender identity, sexual orientation, national origin, disability, uniform service, veteran status, age, or any other protected characteristic per federal, state, or local law. If you are passionate about what you do and want to use your talents to support our mission and values, we’d love to hear from you.