Principal, Software Engineer

Role summary:

The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, including cloud-native architectures and AI/ML frameworks, to support Walmart's evolving technology landscape. This role drives full lifecycle software development across multiple teams, ensuring high availability, reliability, and performance. The position requires strategic technical leadership, mentorship, and collaboration with cross-functional stakeholders to translate business needs into effective solutions. The Principal Engineer champions innovation, continuous improvement, and architectural excellence while maintaining alignment with long-term platform goals and operational standards.

About the team:

The Personalization team specializes in big data, machine learning, application engineering, and product strategy to develop advanced technology solutions enhancing e-commerce. They design intelligent systems that deliver tailored customer experiences throughout the shopping journey. The team builds scalable platforms supporting machine learning feature generation, model inferencing, governance, privacy, and analytics. Collaborating closely with data scientists, they apply cutting-edge methods in machine learning, deep learning, reinforcement learning, and natural language processing to address evolving customer needs and drive innovation at scale.

What you''ll do:

• Build data-driven platforms and capabilities to power Personalization experiences across channels.
• Architect solutions which could be deployed as SaaS platform, ensuring modular design to support multi-tenancy from it's core.
• Architect intelligent software systems integrating AI agents and advanced machine learning technologies.
• Architect systems and platforms that will orchestrate technology roadmap for cross-functional teams to meet enterprise goals.
• Architect systems and workflows to process and manage petabyte scales of features data.
• Collaborating with Science and Engineering team leads and architects to drive end-to-end scalable solutions for cross-functional projects.
• Actively contribute to the research community through participation at conferences, seminars, and workshops.

What you''ll bring:

• You have experience in architecting large-scale distributed systems and platforms that supports modern applied ML at scale.
• You have advanced knowledge of complex software design, distributed system design, and application building experience using Java or Scala, and Python.
• You have experience in building and scaling systems that orchestrate and execute complex workflows in big data leveraging Apache Spark, Apache Kafka, and BigData stack preferably in Google Cloud Platform.
• You have experience with designing and building Feature Store solutions.
• You have experience with ML Platform and ML Ops methodologies.
• You have experience in relational SQL and NoSQL databases like Cassandra, AzureSQL, Cosmos.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more. You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO, see https://one.walmart.com/notices. Live Better U is a Walmart-paid education benefit program for full-time and part-time associates in Walmart and Sam''s Club facilities. Programs range from high school completion to bachelor''s degrees, including English Language Learning and short-form certificates. Tuition, books, and fees are completely paid for by Walmart.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to a specific plan or program terms.

For information about benefits and eligibility, see One.Walmart.

Sunnyvale, California US-11349: The annual salary range for this position is $143,000.00 - $286,000.00

Bentonville, Arkansas US-09401: The annual salary range for this position is $110,000.00 - $220,000.00 Additional compensation includes annual or quarterly performance bonuses. Additional compensation for certain positions may also include :

• Stock