(USA) Principal, Software Engineer-Experimentation Platform

Walmart; Sunnyvale (CA); On-site; USD 143,000 - 286,000; Full time

Benefits offered by this job

Health benefits

401(k) plan with stock purchase

Paid time off

Live Better U education benefit

Job summary

Walmart is seeking a Technical Lead Software Engineer for its Experimentation Platform. You will shape the platform strategy, lead a team of engineers, and build scalable backend services that power self-serve experimentation across Walmart’s digital surfaces.

You’ll collaborate with data scientists, product managers, and engineers to drive adoption and ensure reliability. You will mentor staff engineers, influence cross-team decisions, and uphold engineering excellence, including observability,

Qualifications

• Proven experience leading a team of engineers.
• Experience designing, developing, testing, and maintaining large-scale systems.
• Expertise in Java, Scala, Lua, or Rust.
• Experience deploying compute environments across on-prem and cloud.
• Strong ability to influence decisions across teams.
• Excellent communication with senior leadership.
• Experience with reliability engineering, observability, and platform governance.

Responsibilities

• Define and implement long-term platform strategy for experimentation backend.
• Design, build, and scale backend services for Walmart's experimentation platform.
• Mentor senior engineers and promote engineering excellence.
• Collaborate with data scientists, product managers, and engineers to drive adoption.
• Lead cross-org initiatives and ensure on-time delivery.

Skills

Technical leadership

Large-scale systems

Java

Scala

Lua

Rust

Cloud deployment

Mentorship

Communication

Job description

Bentonville, AR: $110,000 - $220,000/yr Sunnyvale, CA: $143,000 - $286,000/yr Regular / Permanent Salaried

Position Summary

Help drive a culture of experimentation and data-driven decision-making at Walmart scale to continuously evolve and improve the customer experience. We are seeking a technical lead software engineer to design and advance the core infrastructure powering Walmart's self-serve experimentation platform. This position sits on the Walmart Experimentation Platform team, where our mission is to deliver a first-in-class, reliable, and scalable experimentation experience across all of Walmart's digital surfaces. You will shape the platform's multiyear technical strategy, drive cross-org alignment, and ensure the architecture can support Walmart's evolving experimentation needs.

What you'll do

• Drive the technical direction for Walmart's experimentation backend services, aligning long-term platform strategy with business needs across multiple organizations
• Design, develop, and scale efficient and reliable systems and pipelines to support teams globally throughout Walmart
• Provide deep technical mentorship and elevate engineering culture across a high-performing, agile engineering team
• Closely partner with data scientists, product managers, and engineering leaders to advance experimentation methodologies and ensure platform adoption and success

What you'll bring

• Proven technical leadership of a team of engineers
• Experience designing, developing, testing, and maintaining large-scale systems
• Expertise in one or more: Java, Scala, Lua, Rust
• Maintaining and deploying compute environments across local and cloud-based systems
• Ability to proactively manage projects across multiple teams and troubleshoot issues
• Proven ability to influence technical decisions across multiple teams or organizations
• Strong strategic thinking-ability to connect engineering decisions to long-term business outcomes
• Exceptional communication skills, enabling clear articulation of complex technical approaches to senior leadership and cross-functional audiences
• Ability to identify emerging technologies and guide their adoption
• Expertise in reliability engineering, observability, platform governance, and operational excellence for mission-critical systems

Preferred Qualifications

• Experience working with Experimentation (A/B Testing)
• Experience working with Feature Flags and risk-mitigated deployments
• Experience building data solutions and AI/ML products
• Strong contributions to open-source frameworks, standards, or libraries

Responsibilities

Lead and participate in medium- to large-scale projects by reviewing requirements; translating requirements into technical solutions; designing solutions (design docs, wireframes, implementation plans); writing and developing code; testing; collaborating with cross-functional teams; troubleshooting open issues and bug fixes; and ensuring on-time delivery.

• Troubleshoot business and production issues by gathering information (issue, impact, criticality, root cause); engaging support teams to assist in the resolution of issues; formulating an action plan; and performing actions as designated in the plan.
• Provide and support the implementation of business solutions through partnerships with stakeholders, identifying needs, managing processes, and adapting to evolving demands.
• Define the technical roadmap for experimentation platform services, aligning architecture decisions with multi-quarter business priorities.
• Lead the design of platform-level systems, authoring architecture proposals, conducting design reviews, and setting technical direction across services.
• Drive cross-org initiatives, collaborating with analytics, platform, and product teams to deliver unified experimentation capabilities.
• Ensure operational excellence for experimentation backend services, joining and driving incident mitigation efforts and root cause analysis.
• Mentor Staff Engineers and Senior Engineers, enabling them to independently lead large-scale initiatives.
• Lead evaluations and integration of emerging technologies, guiding proof-of-concepts and adoption strategies.
• Uphold and advance engineering excellence, including code quality, automation, observability, and security best practices.

Benefits

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.

• 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
• 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

Primary Location

2403 Se J St, Bentonville, AR 72716, 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 CardGet 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 U100% coveredEarn 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.
• Walmart AcademyGrow your skillsReady to grow your career? Walmart Academy offers job-specific retail training and leadership courses to help Associates reach their career goals.
• Financial perksEnjoy 401(k) matching and stock purchase plans.
• Paid time offTake a break as needed for vacation, sick leave, holidays, parental leave, and more
• Comprehensive health benefitsMedical, dental, vision, and wellness programs for you and your family
• Wellbeing programsAccess mental health resources and assistance programs for life's challenges
• Career growth opportunitiesTraining, leadership programs, and clear paths to advance. Learn more
• Life at WalmartImagine 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.

Company Culture

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.