Software Engineer: Credit Card/Fraud

EtherFi
New York, Denver, Dubai
Workplace: HybridFull timeFunction: Software EngineeringExperience: 4+ yearsSkills: ["Problem-solving","Product sense","Data analysis","Investigation","Curiosity"]

Join the credit card transaction team to improve authorization outcomes and reduce user declines, failed authorizations, and stuck holds. Build proactive fraud and risk systems by developing rules, monitoring, and internal tooling, investigating live cases by querying transaction data, and turning patterns into controls. Partner closely with Product, CX, and Compliance while working directly with card program and fraud vendors.

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FursaFursa
EtherFi
EtherFi
1 day ago

Software Engineer: Credit Card/Fraud

✓ Verified Job

Canonical indexed version, validated from employer's careers page.

Source: Company careers pageValidated by: Fursa AI
Last checked: 9 hours agoStatus: Live

Job Summary

Join the credit card transaction team to improve authorization outcomes and reduce user declines, failed authorizations, and stuck holds. Build proactive fraud and risk systems by developing rules, monitoring, and internal tooling, investigating live cases by querying transaction data, and turning patterns into controls. Partner closely with Product, CX, and Compliance while working directly with card program and fraud vendors.
Location: New York, Denver, Dubai
Workplace: Hybrid
Employment Type: Full time
Job Function: Software Engineering
Seniority: Mid level

Key Responsibilities

  • •Improve card transaction experience by eliminating causes of declines, failed authorizations, stuck holds, and user frictions.
  • •Make the card program better as a product by finding breaks for real users, proposing fixes, and shipping them.
  • •Hunt fraud and abuse patterns such as card testing, cashback farming, merchant abuse, friendly fraud, and multi-account rings.
  • •Own the fraud stack including rules, queues, and scoring logic in Sardine, plus real-time monitoring, alerting, and automated mitigation.
  • •Investigate live cases by querying transaction data, root-causing patterns, and implementing rules or controls to stop recurrence; build internal tools and dashboards.

Pay and Benefits

Perks:Health InsuranceDentalVisionRemote WorkPaid Leave

Key Requirements

  • •4+ years of professional coding experience shipping products.
  • •Strong fundamentals in software engineering and problem solving.
  • •Product sense: prioritize fixing root causes behind declined transactions over closing tickets.
  • •Comfortable working with data, using queries to investigate issues rather than relying on others.
  • •Genuine interest in adversarial problems, including finding and explaining fraud patterns in noisy transaction data.
Experience:4+ yearsCryptoDeFiFintech
Skills:Problem-solvingProduct senseData analysisInvestigationCuriosity
Tech Stack:SardineDuneDeFi

Company Brief

EtherFi
Develops decentralized staking and liquid restaking infrastructure for Ethereum, enabling users to stake ETH, obtain liquid staking derivatives, and allow node operators to participate in restaking and protocol-secured services across networks.
Industry: Blockchain & Web3
Growth: Early Stage Startup
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