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 specialized, high-impact role bridges cybersecurity infrastructure and fraud defense by designing, implementing, and tuning technical systems that monitor external fraud, prevent account takeover (ATO) attacks, and maintain robust controls within a Payment Card Industry (PCI) environment. The role requires technical expertise in IAM protocols and a data-driven, investigative approach to mitigating transactional risk while minimizing friction for legitimate customers. The position also works cross-functionally with teams across the company and with third parties to provide technical recommendations and achieve corporate objectives.

Requirements

Deep technical expertise in IAM protocols.
Data-driven and investigative approach to mitigating transactional risk.
Advanced database querying skills.
Experience or capability in CIAM, fraud monitoring, account-takeover prevention, transaction engines, behavioral scoring, identity verification, access controls, MFA, PCI DSS controls, telemetry analysis, and third-party risk-platform integrations, as reflected in the stated duties.

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 channels.
Administer identity verification workflows, role-based access frameworks, and multi-factor authentication protocols to support technical PCI DSS requirements related to user authentication and access restriction.
Use database queries to extract system telemetry, analyze suspicious velocity parameters, and convert 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 with company teams and third parties, providing technical recommendations to achieve corporate objectives and stated goals.