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

As a Staff Engineer, Full Stack (Trust, Safety & Risk) at Phantom, you'll build the systems that safeguard users, products, and the platform. You work across the stack to detect and prevent abuse, assess emerging risks, reduce financial loss, and equip internal teams with tools and intelligence to respond quickly and effectively. Phantom is a leading mobile wallet with tens of millions of users worldwide, ranked #1 in Google Play's finance category, backed by $150M from a16z, Sequoia Capital, and Paradigm.

What you'll do

• Build real-time risk controls and decisioning systems for products such as ACH, debit cards, onramps, off-ramps, and money movement experiences
• Develop signals, models, and product interventions that identify malicious wallets, transactions, applications, and user behavior
• Build scalable KYC, sanctions screening, transaction monitoring, case management, and audit systems
• Create data pipelines and tools that combine on-chain activity, product data, and third-party signals into actionable risk insights
• Partner with product and engineering teams to design safeguards into new features from the beginning without compromising user experience
• Build internal tools that help Risk, Compliance, Support, and Security teams investigate incidents and take action efficiently
• Help establish the technical foundations and engineering culture for a new, high-impact function at Phantom

What you bring

• 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

Nice to have

• Experience with fraud, risk, identity, KYC, AML, sanctions, payments, fintech, or blockchain systems

What we offer

• Target base salary of $200,000 to $250,000 plus equity
• Comprehensive insurance (medical, dental, vision) covered 100%
• Stipend for your ideal remote setup
• Flexible hours and a supportive remote environment
• Unlimited vacation
• 401(k) retirement plan
• Monthly wellness benefit
• Weekly meal benefit
• Global off-sites

About Phantom

Phantom is a leading mobile wallet connecting millions of users worldwide to open markets including perpetuals, prediction markets, tokenized assets, stablecoins, and more. The company is fully remote with around 180 people and has reached number one in Google Play's finance category. Phantom partners with trusted names in finance such as Hyperliquid, Stripe, Kalshi, and Visa, and supports Solana, Ethereum, Polygon, Bitcoin, and additional networks.