Principal, Software Engineer

Job Description

Position Summary... What you'll do... Principal Software Engineer – Code Puppy AI & Data | Walmart Global Tech Join Walmart as a Principal Software Engineer within our AI & Data organization and help make it trivially easy for associates—engineers, data scientists, and citizen developers—to go from idea to AI-based solutions quickly, safely, and cost‑effectively. At Walmart, we operate at Fortune #1 scale. Our challenges are complex, global, and deeply meaningful. Here, you’ll do the best work of your life—work that helps people save money and live better. About AI & Data The AI & Data organization within Walmart Global Tech is building a platform‑first ecosystem that centralizes enterprise data, provides standardized AI foundations, and delivers intuitive AI solutions for all personas. We are enabling AI at enterprise scale—responsibly, securely, and reliably. Position Summary As a Principal Software Engineer , you will serve as a senior technical authority and hands-on architect across critical AI & Data platforms. You will shape system architecture, influence engineering standards, and drive platform strategy that supports AI-powered experiences across Walmart globally. This role requires deep expertise in distributed systems, platform engineering, and AI‑enabled architectures, combined with the ability to influence across teams and elevate technical rigor enterprise‑wide. You will: Own high-impact architectural decisions Drive scalable, resilient system design Prototype and productionize advanced AI‑enabled capabilities Mentor senior engineers and act as a technical force multiplier Balance long‑term platform sustainability with near‑term business outcomes What You’ll Do Architecture & Technical Strategy Define and evolve reference architectures for distributed systems, AI pipelines, and platform services. Lead system design reviews to ensure scalability, reliability, observability, and cost efficiency. Design systems that integrate seamlessly with enterprise data and AI foundations. Make thoughtful architectural trade-offs balancing long-term platform integrity with short-term delivery needs. Improve end-to-end system reliability and quality across local clients, gateways, and external APIs (debugging, telemetry, and performance tuning). Implement security and compliance guardrails for local execution, including least-privilege access, secrets management, auditing, and allowlists/denylists where appropriate. Build comprehensive testing strategies, including unit, integration, contract tests for tool schemas, and end-to-end tests for common workflows. Drive engineering excellence through code reviews, design documentation, mentoring, incident postmortems, and elevated operational standards. AI‑Enabled Platform Engineering Lead the development of AI-powered services, agent workflows, and internal builder platforms. Prototype and productionize GenAI-enabled capabilities within secure, governed environments. Partner with data scientists and ML e

Required Skills