(USA) Principal, Software Engineer - Fraud and Risk Platform

About the role

The Principal Engineer in Walmart’s Fraud and Risk platform will define and drive the architecture of next-generation fraud and risk prevention systems at massive scale. They will lead the design of platforms that combine real-time decisioning, entity intelligence, agentic AI, and human-in-the-loop workflows.

Responsibilities

• Define Architecture for Fraud & Risk Platforms
• Lead system design for real-time fraud detection and policy enforcement
• Architect entity resolution and graph intelligence systems
• Design agentic AI platforms for automated fraud analysis and reasoning
• Shape case management and orchestration systems for investigations
• Drive AI-Native System Design
• Define patterns for integrating ML models and AI agents into production
• Define explainability frameworks for fraud decisions
• Enable scalable systems for model deployment, evaluation, and iteration
• Own Cross-System Strategy
• Align architecture across Gateway, Platform, and Data Science teams
• Define integration patterns for real-time and batch systems
• Ensure systems meet requirements for latency, reliability, and scalability
• Lead Technical Direction
• Drive architectural standards, design patterns, and engineering best practices
• Guide teams through complex technical decisions and tradeoffs
• Establish long-term technical vision aligned with business goals
• Mentor & Influence
• Mentor senior and staff engineers across teams
• Influence hiring, engineering culture, and technical excellence
• Act as a thought leader in fraud, risk, and AI-driven systems

Requirements

• Proven track record of architecting and scaling large distributed systems
• Deep expertise in system design, platform engineering, and microservices architecture
• Strong experience with real-time decision systems and high-throughput architectures
• Experience architecting systems that operationalize ML models at scale
• Strong understanding of ML-driven decisioning systems and tradeoffs (rules vs models)
• Familiarity with fraud/risk systems, identity systems, or trust & safety domains
• Experience with entity resolution, graph systems, or behavioral analytics (strong plus)
• Ability to drive alignment and influence across organizations
• Strong technical judgment with a focus on long-term scalability and maintainability

Qualifications

• Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.
• Option 2: 7 years’ experience in software engineering or related area.
• Master’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years' experience in software engineering or related area.

Skills

• Knowledge of creating inclusive digital experiences
• Knowledge of implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards
• Knowledge of assistive technologies
• Experience integrating digital accessibility seamlessly

Benefits

• Competitive pay
• Performance-based bonus awards
• Health benefits including medical, vision, and dental coverage
• Financial benefits including 401(k), stock purchase plan, and company-paid life insurance
• Paid time off benefits including PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting
• Short-term and long-term disability
• Company discounts
• Military Leave Pay
• Adoption and surrogacy expense reimbursement
• Education benefits through Live Better U

Pay

The annual salary range for this position is $143,000.00 - $286,000.00. Additional compensation includes annual or quarterly performance bonuses.

Schedule

Flexible schedule to accommodate the needs of the role and the team.