Sr Fraud Operations Engineer, Fiserv Defense Edge Specialist

HealthEquity; Draper (UT); Remote; USD 90,000 - 130,000; Full time

Job summary

HealthEquity is seeking a Senior Fraud Operations Engineer to enhance our fraud-detection platform. This remote role involves developing and optimizing rulesets, managing fraud operations, and providing strategic insights to clients. Ideal candidates have extensive experience in fraud operations, strong analytical skills, and proficiency in SQL and dashboard tools.

Qualifications

• 5+ years in payment-card fraud operations or risk-management roles.
• Experience in Fiserv/First Data Defense Edge rule building.
• Proficient in SQL and dashboard tools like Power BI and Tableau.

Responsibilities

• Build, test, and maintain Defense Edge rulesets and operational control scripts.
• Translate fraud-ops insights into strategic rule adjustments.
• Prepare and deliver comprehensive monthly fraud-performance reports.

Skills

Analytical skills

Communication

SQL

Dashboard building

Job description

Sr Fraud Operations Engineer, Fiserv Defense Edge Specialist

Job Locations: US-Remote

Our Mission

Our mission is to SAVE AND IMPROVE LIVES BY EMPOWERING HEALTHCARE CONSUMERS. Come be part of remarkable.

Overview

How you can make a difference

HealthEquity is seeking a Senior Fraud Operations Engineer to own the administration, configuration, and optimization of our Fiserv Defense Edge fraud-detection platform. You will architect and deploy real-time rules and queues, partner internally on Card Fraud Ops team, manage Defense Edge rulesets and configurations, and drive continuous tuning to maximize fraud capture while minimizing false positives. This role also partners with internal management and external clients, providing strategic updates, monthly performance reports, and rapid response support to keep our card-fraud defenses best-in-class.

What you'll be doing

1. Defense Edge Rule & Queue Development: Build, test, and maintain CAT Defense Edge rulesets, Policy Configuration Files (PCF), and Operational Control Scripts (OCS) to detect evolving fraud schemes. Design high-precision queues that balance fraud interception with minimal impact on legitimate transactions. Validate rule performance through sandbox and UAT, and coordinate production activations with zero-downtime deployments.
2. Fraud Strategy & Change Management: Translate fraud-ops insights into strategic rule adjustments and communicate changes clearly to internal stakeholders and external Fiserv clients. Document rule-change rationales, maintain change-control logs, and ensure compliance with audit and regulatory requirements.
3. Dispute & Chargeback Coordination: Partner with Fiserv and Visa dispute-management team to ensure seamless case data transfer, escalate high-risk disputes, and track financial impacts. Analyze dispute trends to inform proactive rule adjustments and downstream recoveries.
4. Performance Monitoring & Reporting: Build and maintain dashboards tracking key metrics such as approval rates, fraud loss basis points, false-positive rates, and queue volumes. Prepare and deliver comprehensive monthly fraud-performance reports to clients, highlighting trends, KPIs, and action plans.
5. Incident Response & Forensics: Serve as primary on-call lead for Defense Edge incidents, investigate anomalies, perform root-cause analyses, and implement rapid corrective measures. Collaborate with Internal Investigations and Fiserv support to collect evidence, launch coordinated takedowns, and refine detection logic.
6. Training & Documentation: Create and update runbooks, technical guides, and training materials on Defense Edge rule configuration, queue management, and fraud-ops best practices. Conduct regular training sessions for fraud analysts and client teams to ensure consistent understanding of platform capabilities.

What you will need to be successful

• 5+ years in payment-card fraud operations or risk-management roles, with hands-on experience in Fiserv/First Data Defense Edge rule building.
• Demonstrated ability to configure and tune CAT Defense Edge, PCF, and OCS for real-time fraud detection.
• Strong analytical skills, including proficiency in SQL and experience building dashboards (Power BI, Tableau).
• Excellent written and verbal communication skills—adept at presenting strategy changes and performance reports to management and clients.
• Proven track record managing the full rule lifecycle: design, testing, production activation, and iterative tuning.
• Experience integrating third-party intelligence feeds into rule engines.
• Familiarity with card-processing workflows (authorization, dispute/chargeback via Fiserv).
• Prior exposure to SOAR or case-management platforms and cloud-based integrations.

#LI-Remote

This is a remote position.