Head of Anti-Fraud

Mercuryo provides payment infrastructure for Web3 companies by offering on-ramp services and virtual payment cards.

Series A0 current maintainers0 active leads
Bowcliffe Hall, Bramham, Wetherby, West Yorkshire, LS23 6LP, United Kingdom, United Kingdom

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About Mercuryo

Mercuryo helps Web3 companies onboard users and process payments by providing crypto-fiat bridging infrastructure. With it, companies can offer buying and selling crypto, virtual payment cards, and banking services.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will lead the fraud prevention function, oversee complex investigations, and strengthen controls across payments, merchants, partners, and card-acquiring operations. You will manage anti-fraud rules and procedures, respond to scheme and acquirer requests, own chargeback performance, develop the Anti-Fraud team, and report fraud risk and control status to senior stakeholders.

Requirements

  • At least 8 years of fraud prevention experience in payments, card acquiring, a PSP, EMI, or crypto
  • At least 3 years of experience leading a fraud team or function
  • Experience leading large-scale fraud investigations from detection through resolution
  • Experience redesigning fraud controls and procedures after audits, scheme notices, or major incidents
  • Experience handling acquirer RFIs, remediation plans, and scheme programme cases
  • Knowledge of Visa VAMP, VIRP, TC40, dispute rules, Compelling Evidence 3.0, Order Insight, and RDR
  • Knowledge of Mastercard ECP, EFM, GMAP, BRAM, GRIP, merchant monitoring programmes, SAFE, MATCH, and Ethoca alerts
  • Knowledge of 3-D Secure and Strong Customer Authentication
  • Experience owning a rules-based fraud engine, including velocity limits, device fingerprinting, BIN controls, and geo controls
  • SQL proficiency
  • Dashboard development using Metabase or a similar tool
  • Experience analysing large transaction datasets
  • Experience designing transaction-laundering and unauthorised-website detection
  • Experience conducting fraud risk assessments using COSO or ACFE guidance
  • Knowledge of AML escalation, SARs, sanctions screening, and AML controls
  • Fluent written and spoken English

Responsibilities

  • Lead complex fraud investigations involving linked accounts, card testing, mule activity, account takeover, scams, and merchant or partner collusion
  • Set investigation standards, maintain case records, complete root-cause analysis, and preserve evidence
  • Change rules, restrict or offboard merchants and partners, and escalate suspicion to Transaction Monitoring and the MLRO
  • Own the anti-fraud rule set, including design, impact testing, approval, documentation, and effectiveness reviews
  • Identify control weaknesses and redesign controls and procedures
  • Maintain anti-fraud procedures and fraud risk assessments
  • Build and operate AML alert and block rules on the anti-fraud platform
  • Keep acquirer relationships and MIDs within Visa and Mastercard fraud and dispute thresholds
  • Lead responses to Visa and Mastercard notices and programme identifications
  • Respond to acquirer RFIs, agree remediation plans, and complete due-diligence questionnaires
  • Own chargebacks and disputes, including representment, pre-arbitration, deadlines, and win rates
  • Run merchant and partner integrity controls to detect unauthorised website use and transaction laundering
  • Select and manage merchant monitoring and transaction-laundering detection providers
  • Lead and develop Anti-Fraud specialists, analysts, and operations staff
  • Report fraud losses, ratios, scheme exposure, incidents, and control status to leadership and the Board
  • Maintain the incident register and close audit, QA, and compliance findings
  • Partner with Product and Engineering to implement fraud controls before launches

Benefits

  • Performance-based incentives
  • 22 days annual leave
  • 6 additional company days
  • Bank holidays
  • Health insurance
  • Maternity and paternity leave support
  • Flexible work schedule
  • Remote work options
  • Modern offices and co-working spaces
  • Working equipment
  • Professional development and training opportunities