{"id":3910687,"url":"https://alion.io/job/walmart-principal-software-engineer-17","title":"Principal, Software Engineer","company":{"id":236,"name":"Walmart","domain":"walmart.com","url":"https://alion.io/company/walmart","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":100,"open_postings":343,"ghost_share":0,"stale_share":0.117,"repost_share":0.003,"time_to_fill_p50_days":5,"computed_at":"2026-11-07T05:47:08Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sunnyvale, United States","Bellevue, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":143000,"max":286000,"currency":"USD","period":"year","gross":null,"usd_annual":286000},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Java","optional":false},{"name":"Platform Engineering","optional":false},{"name":"React.js","optional":false},{"name":"Redux","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-11-06T00:00:00Z","employer_posted_date":"2026-11-06","last_verified_at":"2026-11-07T23:06:11Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Position Summary...\nWhat you'll do...\nWhatyou'lldo...\nAs a Principal Engineer, you will act as ahands-on technical leader and architect for the MarketplaceTraffic Exposureplatform. This role requiresdeep technicalexpertiseand strong engineering judgment, with a focus onplatform engineering to build scalable, resilient, and extensible systems across both backend and frontend layers.\nYou will drive architectural excellence, evaluate and adopt modern technologies, and solve complex problems across a distributed, high-scale environment while leading through influence across teams.\nAbout the Team:\nMarketplace Engineering team is at the forefront of building core platforms and services to enable Walmart to deliver vast selection at competitive prices and with best-in-class customer experience by enabling third-party sellers to the marketplace platform, sell and manage their products to our customers onwalmart.com.We do this by managing the entire seller lifecycle,monitoringcustomer experience, anddeliverhigh- valueinsights to our sellers to help them plan their assortment, price, inventory. The team also actively collaborates with partner platform teams to ensure we continue to deliver the best experience to our sellers and our customers.\nWhatYou’lldo:\nDrive thetechnical vision and architecture for Marketplace Orders and Returns systems \n\nDesign and scaleevent-driven, microservices-based platforms, includingAPIs, webhooks, and app integrations, along withweb front-end applications for Marketplace workflows \n\nLead end-to-end architecture across backend services andmodern web front-end (React/Redux)to deliver seamless user experiences \n\nLeadplatform engineering initiatives to improve developer productivity, system scalability, and reusability across teams \n\nLeveragedata and AI-driven insights to enhance system intelligence, decision-making, and customer/seller experiences \n\nStay current with emerging technologies andapply modern engineering and platform practices to evolve the ecosystem \n\nLeadcross-team architectural decisions to ensure scalability, reliability, and performance \n\nSolve complex challenges indistributed systems, including data consistency, resiliency, and latency \n\nPartner with Product and Engineering leaders totranslate business needs into scalable technical solutions\n\nInfluence and align multiple teams across Marketplace, Payments, Fulfillment, and Seller Platform \n\nLead design reviews andestablishengineering best practices for APIs, integrations, and front-end applications \n\nDriveplatform modernization and continuous improvement initiatives \n\nMentor senior engineers andraise the technical bar across the organization \n\nLead by example through hands-on technical contributions to critical systems and architectural initiatives\n\nWhatyou’llbring:\n10+ years of software engineering experience in large-scale systems\n\nDeepexpertiseindistributed systems, microservices, and event-driven architectures\n\nStrong experience building and scalingcloud-native platforms with high availability and performance \n\nProficiencyin backend technologies (Java) and familiarity with modern web frameworks (React/Redux)\n\nExperience designing and evolvingAPIs, webhooks, and external integrations at scale \n\nStrong foundationinplatform engineering and building reusable, extensible systems \n\nProven ability todrive architecture across teams and influence technical decisions at scale \n\nExperienceleveragingdata and AI-driven insights to improve systems and user experiences \n\nStrong problem-solving skills with the ability to navigatecomplex, ambiguous challenges\n\nTrack recordof mentoring senior engineers and raising the overall technical bar \n\nExcellent collaboration and communication skills across engineering and business stakeholders\n\nAt 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.\nYou 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.\nFor information about PTO, see https://one.walmart.com/notices.\nLive 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. \nEligibility 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. \nFor information about benefits and eligibility, see One.Walmart.\nSunnyvale, California US-11658: The annual salary range for this position is $143,000.00 - $286,000.00\nBellevue, Washington US-11663: The annual salary range for this position is $132,000.00 - $264,000.00\nAdditional compensation includes annual or quarterly performance bonuses.\nAdditional compensation for certain positions may also include : \n- Stock\nㅤ\nㅤ\nㅤ\nㅤ\n\nMinimum Qualifications...\nOutlined below are the required minimum qualifications for this position. If none are listed, there are no minimum qualifications.\nOption 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 5 years’ experience in software engineering or related area.Option 2: 7 years’ experience in software engineering or related area.\nPreferred Qualifications...\nOutlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.\nMaster’s degree in computer science, computer engineering, computer information systems, software engineering, or related area and 3 years' experience in software engineering or related area., 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...\n1275 Crossman Ave, Sunnyvale, CA 94089-1103, United States of AmericaWalmart 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. 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