Apply

Ready to go for it?

AI Apply speeds things up—apply directly if you prefer.

FREE ACCESS
5,000–10,000 jobs/day
Scoutfield Logo

See all jobs on Scoutfield

Search thousands of fresh jobs every day.

Discover
  • Fresh listings
  • Fast filters
  • No subscription required
Create a free account and start exploring right away.
Walmart

Principal Software Engineer

Walmart

. Lead the design and delivery of scalable platform capabilities across multiple teams .

Posted 10/15/2026full-timeSunnyvale • California • United StatesLead💰 $143,000 - $286,000 per yearWebsite

Tech Stack

Tools & technologies
BigQueryCassandraCloudDistributed SystemsKafkaPySparkPyTorchRaySpark

About the role

Key responsibilities & impact
  • Lead the design and delivery of scalable platform capabilities across multiple teams
  • Apply cloud-native architecture principles to develop resilient distributed systems
  • Integrate AI/ML solutions serving millions of users
  • Provide technical leadership for 30+ engineers
  • Solve large-scale AdTech problems using ML and statistical methods
  • Lead development of measurement solutions from 0 to 1, including incrementality, attribution, data cleanroom measurement, partner integrations, and GenAI-powered reporting
  • Support real-time optimization and offline reporting for Walmart’s digital advertising business
  • Define technical direction and conduct design reviews
  • Partner with engineering leadership and cross-functional stakeholders to align technical strategy with business goals
  • Troubleshoot business and production issues, coordinate support teams, formulate action plans, execute resolutions, interpret results, and document outcomes
  • Mentor engineers and foster innovation, knowledge sharing, and continuous improvement

Requirements

What you’ll need
  • 8+ years of experience in ML and data intensive platform development
  • 4+ years of experience as staff+ level technical lead
  • Familiarity with distributed data processing tools and databases, including Spark Streaming, Flink, Kafka, RAY, BigQuery, Druid, and Cassandra
  • Skilled at leveraging AI to enhance productivity and drive innovation
  • Familiarity with GenAI techniques including MCP, RAG, re-ranking, agent skills, progressive disclosure, context engineering, agent-to-agent protocol, and fine-tuning
  • Familiarity with ML libraries including PySpark, PyTorch, CUDA, and Triton
  • Experience implementing statistical and machine learning methods for classification, regression, ranking, and/or recommendation
  • Experience implementing transformer-based model training and real-time inference on GPU-backed infrastructure
  • Experience working cross-functionally with data scientists, machine learning engineers, and product managers
  • Experience in AdTech measurement with demonstrated knowledge of the AdTech business
  • Bachelor's degree in a specified computer-related field and 5 years’ experience in software engineering or related area, or 7 years’ experience in software engineering or related area
  • PhD, publications, patents, and additional AdTech, streaming, auction retrieval/ranking, bid optimization, distributed systems, and industry trend experience are preferred

Benefits

Comp & perks
  • Performance-based bonus awards
  • Medical, vision, and dental coverage
  • 401(k)
  • Stock purchase
  • Company-paid life insurance
  • Paid time off, including sick leave
  • Parental leave
  • Family care leave
  • Bereavement leave
  • Jury duty leave
  • Voting leave
  • Short-term and long-term disability
  • Company discounts
  • Military Leave Pay
  • Adoption and surrogacy expense reimbursement
  • PTO and/or PPTO for vacation, sick leave, holidays, or other purposes
  • Live Better U Walmart-paid education benefit, including tuition, books, and fees for eligible programs
  • English Language Learning and short-form certificate programs through Live Better U
  • Potential stock compensation