Principal, Software Engineer

Reference: R-2494594

Posted:

Location:

SUNNYVALE, CA, United States Salary: $143000 - $286000/year

Type:
Full time / Regular/Permanent Company:
Walmart Business Segment:
Home Office Principal Software Engineer – Data Security Platform About the Team We are building Walmart’s next-generation Data Security Platform, responsible for protecting data across Walmart’s systems, applications, and associates. Data security is one of the most critical challenges for modern enterprises, requiring a careful balance between security, privacy, compliance, and productivity.

Our platform provides comprehensive capabilities including:
Authentication and Identity Management Authorization and Access Control Audit Logging and Compliance Data Protection and Least-Privilege Enforcement As part of this team, you will design and build highly scalable distributed systems that protect petabytes of data at rest and in motion, across both structured and unstructured data sources. You will solve complex engineering challenges involving real-time policy enforcement, large-scale data processing, and low-latency access control while ensuring a seamless user experience.

What You’ll Do Architect and build large-scale distributed systems for enterprise data security. Design highly scalable and resilient services for authentication,authorization, auditing, and data protection. Develop solutions that enforce fine-grained access controls with minimal performance overhead. Drive technical strategy and influence cross-functional engineering teamsand stakeholders. Optimize system performance, reliability, scalability, and operational excellence. Mentor engineers and establish engineering best practices across the organization. Lead critical design reviews and contribute to long-term platform architecture.

Required Qualifications Technical Expertise 10+ years of software engineering experience building large-scale distributed systems. 5+ years of experience designing and architecting complex distributed systems in production environments. 10+ years of hands-on experience with Java and Go. Deep understanding of JVM internals, memory management, garbage collection, thread management, and performance tuning. Strong expertise in concurrent and multithreaded programming. 10+ years of experience with SQL and No

SQL databases. Deep understanding of storage engines, indexing, query optimization,database internals, and performance tuning. Strong hands-on coding skills with a track record of delivering production-quality software.

Leadership & Problem Solving Exceptional analytical, debugging, and problem-solving skills. Proven ability to lead technical initiatives and drive alignment across engineering teams and senior stakeholders. Strong communication and collaboration skills with the ability to influence technical decisions through data-driven discussions. Experience mentoring engineers and driving engineering excellence atscale.

Preferred Qualifications Experience building security, identity, authorization, governance, or data protection platforms. Experience working with large-scale cloud-native systems and microservices architectures. Familiarity with distributed data processing frameworks and big data technologies. Experience operating systems at petabyte scale.

Platform Engineering Leadership:

Delivers platform capabilities across a technical area or sub-organization,including shared infrastructure, reusable tooling, and scalable ML frameworks(for example, CI/CD pipelines, SDKs, model runtimes, feature stores).Aligns engineering efforts with roadmap milestones and domain strategies,ensuring execution supports long-term platform evolution.

Applies cloud-native architecture principles and best practices in distributed system design to enable high…