Senior, Software Engineer - Python

Position Summary...What you'll do...Role summary:
As a Senior Software Engineer, you will lead the delivery of scalable, secure software solutions by managing feature development, testing, and ongoing support within collaborative teams. This role requires expertise in multiple programming languages and a strong focus on continuous integration, automation, and AI/ML integration to enhance platform capabilities. You will contribute to technical design, code quality, and operational excellence while mentoring peers and driving innovation.

Your work will align with broader business objectives, ensuring reliable, high-performance systems that meet evolving customer and stakeholder needs.

About the team:
The Search and Personalization team at Walmart focuses on understanding customer needs to create seamless, efficient shopping experiences across online and in-store channels. The team develops intelligent, personalized solutions by leveraging advanced machine learning, natural language processing, and knowledge representation. Comprising skilled engineers, data scientists, and product experts, the team addresses complex challenges at the intersection of Walmart’s extensive assortment, millions of customers, and thousands of stores.

Their work drives innovation in e-commerce by delivering tailored experiences that enhance customer engagement and satisfaction globally.

• Own delivery of scoped features and models through collaborative engineering teams, ensuring alignment with platform and system objectives.
• Design, develop, test, and maintain data pipelines and platform services using Scala, Spark, Python, and PySpark on GCP Dataproc, following clean coding and documentation standards.
• Integrate AI and machine learning components to enhance software capabilities and innovation.
• Participate in design reviews, applying scalable and maintainable software design principles.
• Conduct code reviews, debugging, and continuous integration to ensure high-quality deliverables.
• Monitor application performance using Grafana, Open Observe, and platform telemetry; support ongoing reliability improvements including autoscaling optimization, cost efficiency, and SLA compliance across 9 global markets.

• Extensive experience in software development with proficiency in Scala, Python, PySpark, and Java, with hands‑on experience building distributed data pipelines on Apache Spark.
• Strong expertise in object‑oriented and functional programming, code review, debugging, and documentation‑based coding practices.
• Proven ability to deliver scoped features and platform components through iterative development and continuous integration in a multi‑tenant, multi‑market environment.
• Experience with big data ecosystems - GCP Dataproc, Airflow, Kafka, Cassandra, GCS, and columnar formats and optimizing for throughput, latency, and cost.
• Experience with Kubernetes/WCNP deployments, CI/CD, and infrastructure‑as‑code practices.
• Effective collaboration and communication skills to engage cross‑functional teams - data science, ML engineering, product, and platform stakeholders.

• 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.

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.

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

Live Better U is a Walmart‑paid education benefit program for…