
Principal Data Engineer
Walmart
full-time
Posted on:
Location Type: Office
Location: Sunnyvale • California • United 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