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

Phantom is a company building an open-markets platform that enables users to access and manage crypto and other financial products. The Staff Engineer, Full Stack will build systems that safeguard users, products, and the platform by preventing fraud and abuse, managing identity and compliance infrastructure, developing risk intelligence, and creating operational tools.

Responsibilities:

• 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

Requirements:

• Bachelor's degree in Computer Science or a related technical field, or equivalent practical experience
• 8+ years of full-time software engineering experience
• Experience designing and operating reliable, data-intensive production systems
• Strong product judgment and the ability to balance user experience, financial risk, and operational complexity
• Ability to work across frontend, backend, APIs, data pipelines, and third-party integrations
• Demonstrated interest in protecting users and building trustworthy financial products
• English language proficiency
• Experience with fraud, risk, identity, KYC, AML, sanctions, payments, fintech, or blockchain systems