Sr. Security & Fraud Engineer

Topgolf•Dallas, TX

About The Position

Own and secure the Customer Identity and Access Management (CIAM) environment and transaction monitoring ecosystem. This high-impact role bridges cybersecurity infrastructure and fraud defense by designing, implementing, and tuning technical systems that monitor external fraud, prevent account takeover attacks, and maintain controls in a Payment Card Industry (PCI) environment. The role calls for technical expertise in IAM protocols and a data-driven, investigative approach to reducing transactional risk while avoiding friction for legitimate customers. The position also works with software development, infrastructure engineering, compliance teams, and third-party vendors to ensure secure releases, effective telemetry, and risk-management objectives.

Responsibilities

Design, configure, and maintain enterprise CIAM platforms to defend against brute-force attacks, automated bot networks, credential stuffing, and session hijacking.
Own, scale, and tune real-time fraud transaction engines and behavioral scoring models to detect card testing and e-commerce payment fraud at point of sale or checkout.
Administer identity verification workflows, role-based access frameworks, and multi-factor authentication protocols to satisfy technical PCI DSS requirements related to user authentication and access restriction.
Use database queries to extract system telemetry, analyze suspicious velocity parameters, and turn investigative findings into active programmatic blocklists.
Partner with software development, infrastructure engineering, and compliance teams to ensure feature releases maintain a secure risk posture and feed telemetry correctly into centralized logging systems.
Manage integrations and rules infrastructure for third-party identity, device fingerprinting, and risk-scoring vendor platforms.
Work cross-functionally across the company to provide technical recommendations and collaborate with third parties to achieve stated goals.