Walmart

Principal Data Engineer

Walmart

full-time

Posted on:

Location Type: Office

Location: SunnyvaleCaliforniaUnited States

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Salary

💰 $143,000 - $286,000 per year

Job Level

About the role

  • Transform and evolve Walmart’s core data platform using Agentic AI across batch, streaming, and hybrid systems
  • Develop data platforms that scale to billions of events per day
  • Develop agent-ready data, ensuring data products are discoverable, semantically rich, and optimized for LLMs, copilots, and multi-agent workflows
  • Influence multiple teams and organizations through technical leadership and clear architectural direction
  • Develop fault-tolerant, resilient systems that support mission-critical retail and marketplace operations
  • Lead modernization of legacy data lakes and pipelines into composable, event-driven, and agent-aware platforms
  • Enable incremental modernization that delivers immediate value while reducing long-term complexity and operational risk
  • Mentor Staff and Senior Engineers across Walmart Global Tech AI and Data team.

Requirements

  • 10–15+ years building and evolving large-scale distributed data platforms
  • Proven experience designing systems that operate at global retail or consumer-scale
  • Track record of collaborating and influencing across multiple teams or organizations
  • Strong experience with cloud-native ecosystems (GCP or Azure preferred), including BigQuery, Serverless, Pub/Sub, or equivalent
  • Expertise in batch and streaming technologies (Kafka, Spark Structured Streaming, Flink, Druid, etc.)
  • Experience working with hybrid architectures that support both real-time operations and analytical workloads
  • Strong understanding of semantic modeling, embeddings, knowledge graphs, and vector indexing
  • Experience supporting RAG, context-aware AI, and agent orchestration through data platform design
  • Fluency in Python, Java, or Scala
  • Deep experience with Spark/PySpark and large-scale SQL optimization
  • Executive-level communication skills.
Benefits
  • 401(k) match
  • stock purchase plan
  • paid maternity and parental leave
  • PTO
  • multiple health plans
  • performance-based bonus awards
  • health insurance (medical, vision, and dental)
  • short-term and long-term disability
  • company discounts
  • Military Leave Pay
  • tuition reimbursement for education through Live Better U program.
Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills & Tools
data platform developmentlarge-scale distributed systemscloud-native ecosystemsbatch technologiesstreaming technologiessemantic modelingPythonJavaScalaSQL optimization
Soft Skills
technical leadershipcollaborationinfluencementoringexecutive communication