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.
You'll work directly with our COO and Strategic Initiatives lead across finance, exchange and market data vendors, fundraising, legal coordination, and institutional relationships.
What You'll Do.
Exchange and data vendor ops
Own our vendor relationships with some of the largest TradFi exchanges in the world, and market data providers
Run the licensing, contracts, renewals, coverage, and cost across all of them
Analysis and planning
Take strategic questions from the founders and come back with data and a recommendation
Run quarterly planning: set targets with leadership, track them, keep them current
Finance ops
Own financial operations across entities and jurisdictions
Craft and execute appropriate incentives to manage capital with partner entities
Fundraising and investor ops
Run the operational side of fundraising: data rooms, diligence requests, investor updates, closing mechanics, legal and documentation review
Legal, entity, and institutional ops
Work with outside counsel on contracts, entity admin, and compliance
Point of contact for funds, market makers, and institutional partners across verticals on diligence, docs, and onboarding
Who You Are.
3+ years in investment banking, consulting, or a high-growth startup
Strong modeling and spreadsheet skills
Clear communicator with counsel, banks, accountants, and institutions
Comfortable owning problems end to end without a playbook
You use AI tools in your daily work
You love markets. Crypto and DeFi fluency is a plus, not a requirement
Compensation.
$170,000 $250,000 base, depending on experience.