Senior Data Engineer

Walmart Inc.; Sunnyvale (CA); On-site; USD 117,000 - 234,000; Full time

Benefits offered by this job

Health benefits

Live Better U – 100% covered

Discount card

Job summary

Walmart is seeking a Senior Data Engineer in Sunnyvale, CA to design and deploy scalable data solutions powering agent-enabled AI for Sam’s Club. Collaborate with AI/ML, product, and engineering teams to ensure data services are trustworthy, discoverable, and consumable by next‑gen agents.

Lead data health, governance, and semantic layer initiatives, enabling integration of structured/unstructured data for autonomous workflows with a strong focus on reliability and scalability.

Qualifications

• 4–6 years of Big Data development experience.
• 2–3 years on cloud platforms (GCP/Azure) with services like BigQuery, Dataflow, Pub/Sub.
• Strong data engineering practices and scalable pipelines.
• Experience designing semantic layers or knowledge graphs for agent power.
• Data modeling/architecture and impact on retrieval and relevance.
• Familiar with API design, SQL optimization, and large data sets.
• Hands-on with Kafka, Spark, and real-time data systems.
• CI/CD, DevOps, and observability for frontend/backend apps.

Responsibilities

• Design, build, test, and deploy scalable data solutions for AI agents.
• Collaborate with AI/ML and product teams to ensure data services are trustworthy and consumable.
• Contribute to data-first, agent-aware architecture across engineering teams.
• Prioritize data products to enable autonomous decision-making and context-rich recommendations.
• Enable integration between structured/unstructured data and AI agents for smarter responses.

Skills

Big Data development

Cloud platforms (GCP/Azure)

Python/Java/Scala

Spark/Kafka

SQL/NoSQL

Data modeling/architecture

LLM/agent workflows

DevOps/CI-CD

Full Stack familiarity

Education

Bachelor's degree in CS or related

Master's degree in CS/related field

Tools

Kafka

Spark

Druid

Presto

PySpark

LangChain/LlamaIndex

Docker/Kubernetes

Job description

1275 Crossman Ave

Sunnyvale, CA 94089-1103

R-2670105

$117,000 - $234,000/yr

Regular/ Permanent

Position Summary...

What you'll do...

What you’ll do:

• Design, build, test, and deploy scalable, intelligent data solutions that support millions of Sam’s Club customers—while laying the groundwork for Agentic AI systems that consume and act on this data.
• Partner with engineering, AI/ML, and product teams to ensure data services are discoverable, trustworthy, and consumable by next-gen AI agents and LLM-based systems.
• Collaborate across Sam’s Club engineering teams to contribute to a data-first, agent-aware architecture and foster a culture of innovation around intelligent automation.
• Engage with Product Management and Business teams to prioritize data products that will drive autonomous decision-making and context-rich recommendations.
• Build features that enable seamless integration between structured/unstructured data and downstream AI agents, enabling smarter responses, faster insights, and automation.
• Deploy and monitor products on cloud platforms with agent observability, telemetry, and auditability in mind.
• Develop and implement best-in-class data health monitoring, traceability, and context enrichment processes to ensure data used by agents is reliable and governed.
• Lead technical solutioning for full-lifecycle projects, with an eye on how data will power autonomous workflows, co-pilots, and multi-agent systems.

What you’ll bring:

• 4–6 years of experience in Big Data development with a focus on scalable, fault-tolerant architectures.
• 2–3 years of hands‑on experience with cloud platforms such as GCP or Azure, including services like BigQuery, Dataflow, Pub/Sub, or equivalent.
• Strong foundation in data engineering best practices and experience building complex data pipelines optimized for agent consumption.
• Experience designing and implementing semantic layers or knowledge graphs that could power data‑aware AI agents.
• Proven experience in data modeling and architecture, with awareness of how data structures affect retrieval quality and contextual relevance for agents.
• Exposure to LLM-driven workflows, prompt templating, or orchestration tools (e.g., LangChain, LlamaIndex, CrewAI) is beneficial but not required.
• Understanding of data governance, including quality, access control, and lineage—especially in the context of agent auditability and trust.
• Experience writing clean, testable code in Python, Java, or Scala; experience with PySpark/Spark for distributed data processing.
• Demonstrated ability to write optimized, scalable SQL and to work with large datasets across cloud-native and open-source platforms.
• Familiarity with tools like Kafka, Spark Streaming, Druid, and Presto, and how they interact in real‑time or hybrid data systems.
• Solid software engineering experience across backend and frontend development.
• Advanced experience with Java and Spring Boot, along with strong experience using modern frontend frameworks such as React, Angular, or Vue.js.
• Experience working with SQL (Azure SQL) and NoSQL (Cosmos, Cassandra, MongoDB) databases in both backend services and Full Stack systems.
• Hands‑on experience with Kafka, Docker/Kubernetes, and cloud platforms such as Azure, and GCP.
• A strong understanding of DevOps principles, CI/CD pipelines, system observability, and deployment patterns for applications with both frontend and backend components.
• A demonstrated ability to design and maintain scalable, reliable, high‑performing Full Stack applications.
• Success building enterprise-level systems that include both user‑facing interfaces and backend services.
• Strong experience with API design, performance optimization, and scalable solution development across the full stack.

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.

Minimum Qualifications...

Outlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.

Option 1: Bachelor’s degree in Computer Science and 3 years' experience in software engineering or related field. Option 2: 5 years’ experience in software engineering or related field. Option 3: Master’s degree in Computer Science and 1 year’s experience in software engineering, 2 years' experience in data engineering, database engineering, business intelligence, or business analytics.

Preferred Qualifications...

Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.

Data engineering, database engineering, business intelligence, or business analytics, ETL tools and working with large data sets in the cloud, Master’s degree in Computer Science or related field and 3 years' experience in software engineering. We value candidates with a background in creating inclusive digital experiences, demonstrating knowledge in implementing Web Content Accessibility Guidelines (WCAG) 2.2 AA standards, assistive technologies, and integrating digital accessibility seamlessly. The ideal candidate would have knowledge of accessibility best practices and join us as we continue to create accessible products and services following Walmart’s accessibility standards and guidelines for supporting an inclusive culture.

Primary Location...

1275 Crossman Ave, Sunnyvale, CA 94089-1103, United States of America

Walmart and its subsidiaries are committed to maintaining a drug‑free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.

Walmart is committed to maintaining a drug‑free workplace and has a no tolerance policy regarding the use of illegal drugs and alcohol on the job. This policy applies to all employees and aims to create a safe and productive work environment.

Benefits you’ll enjoy

Discount Card

Get 10% off

Walmart associates are eligible for a 10% discount card on most regular‑priced items and fresh produce in‑store and on select items at Walmart.com. Eligible after 90 days of employment.

Live Better U

100% covered

Earn a degree or in‑demand skills certificates with no debt‑Walmart covers 100% of tuition and books. Live Better U offers 60+ programs for Associates to pursue their dreams.

Ready to grow your career? Walmart Academy offers job‑specific retail training and leadership courses to help Associates reach their career goals.

Medical, dental, vision, and wellness programs for you and your family

Access mental health resources and assistance programs for life’s challenges

Training, leadership programs, and clear paths to advance.

Imagine a workplace surrounded by innovation.At Walmart’s new Home Office in Bentonville, Arkansas, we’re redefining what it means to work at a global leader.

Set on 350 acres of thoughtfully revitalized land, our new campus seamlessly integrates the charm of Northwest Arkansas with cutting edge design and technology. From biking trails and outdoor courtyards to flexible, tech‑enabled workspaces, every detail reflects our commitment to sustainability, connection, and culture.

With amenities like on‑site childcare at our Little Squiggles Children’s Enrichment Center, the Walton Family Whole Health & Fitness Center, and a vibrant food hall featuring local and international favorites, we’re creating a space where work‑life balance isn’t just a goal—it’s a reality.

Beyond the campus, Bentonville offers a dynamic lifestyle with world‑class dining, art at the Crystal Bridges Museum, and countless outdoor activities.

Whether you’re exploring High South cuisine, enjoying live performances at our new amphitheater, or cycling the Razorback Greenway, you’ll experience the perfect blend of small‑town charm and big‑city amenities.

Join us at Walmart and grow your career alongside a community that feels like home.

This isn’t just a workplace—it’s a destination for leaders eager to make a difference.

Trending roles

(USA) Senior, Software Engineer, Data Engineering

Sunnyvale, CA 94089-1114

Senior Data Scientist

Sunnyvale, CA 94089-1114

$117,000 - $234,000/yr

Sunnyvale, CA 94089-4731