Staff Engineer, Full Stack (Trust, Safety & Risk)

Phantom is on a mission to connect the world to the freedom of open markets. Tens of millions of people all over the world use Phantom to access global markets that never close, including perpetuals, prediction markets, tokenized assets, stablecoins and memes. Phantom users are able to discover the markets that matter and the cultural moments that shape them, building conviction through real-time data and the verified performance of top traders.

With self-custody and access to open networks at its core, Phantom lets them control their financial moves in the same app they use to safely store or spend money worldwide. Phantom has reached #1 in Google Play's finance category and consistently ranks in the top 50 apps across all categories. Phantom partners with many of the most trusted and influential names in finance like Hyperliquid, Stripe, Kalshi and Visa, to make the most popular and innovative financial products accessible to everyone.

We are around 180 people, fully remote, backed by a $150M Series C investment from a16z, Sequoia Capital and Paradigm

Responsibilities

• As a Trust, Risk & Safety Engineer at Phantom, you’ll build the systems that safeguard our users, products, and platform.
• Working across the stack, you’ll detect and prevent abuse, assess emerging risks, reduce financial loss, and equip internal teams with the tools and intelligence needed to respond quickly and effectively.
• The ideal candidate brings high agency, a strong sense of ownership, exceptional technical judgment and product taste, a relentless work ethic, and the emotional intelligence to navigate complex, high-stakes situations.
• Fraud prevention: Build real-time risk controls and decisioning systems for products such as ACH, debit cards, onramps, off-ramps, and other money movement experiences.
• Scam and abuse detection: Develop signals, models, and product interventions that identify malicious wallets, transactions, applications, and user behavior.
• Identity and compliance infrastructure: Build scalable KYC, sanctions screening, transaction monitoring, case management, and audit systems.
• Data and intelligence: Create pipelines and tools that combine on-chain activity, product data, and third-party signals into actionable risk insights.
• Product safety: Partner with product and engineering teams to design safeguards into new features from the beginning without compromising the user experience.
• Operational tooling: Build internal tools that help Risk, Compliance, Support, and Security teams investigate incidents and take action efficiently.
• Team building: Help establish the technical foundations and engineering culture for a new, high-impact function at Phantom