Fraud Investigator

About the role

In this role, you will monitor fraud signals, conduct threat hunting, and lead investigations to mitigate fraud risks. You will work closely with cross-functional teams to enhance fraud detection strategies and implement automation to improve efficiency.

Success in this position involves effectively managing fraud incidents, optimizing detection rules, and collaborating with various teams to ensure thorough documentation and reporting of fraud cases. Your contributions will directly impact the overall security and integrity of MoonPay's operations.

The salary range for this position is between $52,000 and $88,000, reflecting the competitive nature of the role in the crypto industry.

Skills that matter here

• Fraud Detection: This role involves monitoring and implementing fraud detection strategies to safeguard users.
• Analytical Skills: You will analyze large datasets to identify fraud patterns and inform decision-making.
• Transaction Monitoring: Monitoring transactions for fraud signals is a key responsibility.
• Fraud Investigation: Leading complex investigations into fraud cases is a central task.
• Risk Analysis: You will assess the severity of fraud incidents and recommend preventative measures.
• Blockchain: A solid understanding of blockchain technology is essential for navigating fraud in the crypto space.

Who this role suits

• A candidate who thrives in fast-paced environments and can maintain attention to detail under pressure.
• Someone with a proactive mindset who takes ownership of their responsibilities.
• An individual with strong critical thinking skills and the ability to analyze complex data.
• A person comfortable collaborating across teams and communicating effectively about fraud risks.

From the employer

What You Will Do

• Detection and Threat Management
• Monitor fraud signals and emerging threats to identify attack patterns.
• Conduct threat hunting to uncover fraud missed by existing controls.
• Identify detection gaps and implement strategies to strengthen fraud prevention.

• Incident Management
• Act as an incident commander during live fraud attacks, coordinating containment and response across teams.
• Lead complex fraud investigations, identifying root causes and recommending permanent fixes to prevent recurrence.
• Assess the severity of fraud cases and escalate high-risk cases to the Manager or Compliance in a timely manner.
• Execute rapid containment actions (blocks, freezes, restrictions) to minimise fraud exposure during active incidents.

• Rule Management
• Review, build, implement, and tune fraud detection rules to optimise accuracy and minimise false declines.
• Backtest rule logic against historical data to validate effectiveness before deployment.
• Monitor rule performance in production and iterate based on real-time data and investigation outcomes.
• Own the False Decline Rate for rules implemented by the Fraud Investigations team, keeping it within acceptable thresholds.

• Agent Building & Automation
• Build, deploy, and QA AI-powered agents and automation workflows that enhance fraud detection and investigation efficiency.
• Identify opportunities to automate repetitive investigation tasks and scale the team’s operational capacity.
• Partner with Engineering, Data, and ML teams to translate investigative insights into scalable tooling and controls.

• Cross-Functional Collaboration & Reporting
• Engage with Product, ML, Engineering, and Compliance teams to support investigations and contribute to fraud mitigation strategies.
• Provide support to internal teams raising fraud queries, acting as a subject matter expert on fraud risk.
• Ensure accurate and timely documentation of fraud cases, maintaining clear records for internal reporting and external audit requirements.
• Identify gaps in tooling or processes and provide actionable feedback to improve detection accuracy and investigation efficiency.

About You

Must-have experience and skills

• 3+ years of experience in fraud detection, prevention, and investigation, preferably in the Web3, crypto, or blockchain industry.
• Demonstrated experience leading complex fraud investigations from initial alert through to root cause analysis and remediation.
• Hands-on experience building, implementing, and tuning fraud detection rules, including rule backtesting and performance management.
• Strong understanding of fraud typologies, attack vectors, and emerging trends in the crypto and digital payments space.
• Experience with data analysis tools and the ability to derive conclusions and recommendations from large datasets (e.g. SQL, Excel, or BI tools).
• Excellent critical thinking and risk assessment skills.
• Strong attention to detail with the ability to maintain accuracy and thoroughness in a high-volume, fast-paced environment.
• Clear, professional communication skills.
• A proactive, ownership-driven mindset.
• Experience leveraging AI and machine learning tools in fraud, risk, investigations, or operational workflows.

Nice-to-have experience

• Coding ability (e.g. SQL, Python) for data analysis, automation, or building investigative tools.
• Familiarity with blockchain analytics and on-chain investigation tools (e.g. Chainalysis, TRM Labs, Elliptic).
• Knowledge of chargeback processes and card scheme fraud programmes.

Benefits & Perks 💡

• Competitive salary package
• Equity package: financial freedom starts with our employees, so all employees have ownership at MoonPay
• Pay-for-performance equity bonus: those who drive outsized outcomes receive outsized rewards
• Moonshot award: we honor exceptional impact. 20 employees a year, each earning a $250,000 bonus.