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We are seeking an exceptional Principal Engineer to lead the design and delivery of highly scalable, distributed systems powering Walmart's Marketplace Trust platform. As a technical anchor for the team, you will drive architectural decisions, set engineering standards, and build innovative, data-driven platforms that enable associates to effectively support sellers and maintain the integrity of our Marketplace ecosystem.
We are seeking an exceptional Principal Engineer to lead the design and delivery of highly scalable, distributed systems powering Walmart's Marketplace Trust platform. As a technical anchor for the team, you will drive architectural decisions, set engineering standards, and build innovative, data-driven platforms that enable associates to effectively support sellers and maintain the integrity of our Marketplace ecosystem.
We are part of the Marketplace Trust organization , responsible for keeping the Marketplace safe and risk-free for our customers and sellers. Our team builds, manages, and supports platforms that enable associates to effectively assist sellers and maintain operational excellence across the ecosystem.
As part of the Trust organization, our team develops solutions that allow associates to efficiently:
View and resolve seller issues
Seamlessly integrate with other Marketplace systems
Automate manual resolution processes
Monitor and enforce compliance standards
Our goal is to improve operational efficiency while supporting Walmart's Everyday Low Cost philosophy by reducing operational costs through innovative, scalable solutions.
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Lead end-to-end technical design for complex initiatives involving API contracts, UI interfaces, data models, distributed system topologies, and cross-cutting concerns
Drive platform standardization by defining and documenting reference architectures, design patterns, and implementation guardrails that teams adopt
Evaluate and select technologies, frameworks, and cloud-native patterns with a clear-eyed understanding of trade-offs at Walmart's operational scale
Author and review RFCs and architecture decision records (ADRs) that become the technical canon for the platform
Work closely with architects and cross-functional teams to ensure solutions meet QCD standards (Quality, Cost, and Delivery)
Write production-grade code and not prototypes or proof-of-concepts; test and deploy them to production
Solve complex problems considering performance, reliability, and scalability
Prototype new solutions rapidly using AI-augmented development workflows and then drive them to production quality
Conduct deep-dive code reviews that raise the technical bar of the team
Own the full software development lifecycle for your initiatives involving design, development, testing, deployment, and observability
Solve the hardest and most complex problems and enable the team while doing so
Lead technical investigations for P0/P1 incidents affecting platform services; own the root cause analysis and define permanent fixes
Challenge technical assumptions early in the design process before they become expensive production mistakes
Navigate ambiguity with confidence by breaking down underspecified problems into structured technical approaches and drive alignment across stakeholders
Design for resilience from first principles; define and own the platform's non-functional requirements
Instrument systems to be deeply observable and use the signals to drive continuous improvement
This role is AI-forward by design and requires someone who actively shapes how it is used and pushes the frontier of what AI-augmented engineering looks like at scale.
Proficient with GitHub Copilot, Wibey, and LLM-based tooling as active, daily parts of your development workflow
Use AI to compress every phase of the engineering loop: schema design validation, code generation and review, test coverage acceleration, documentation, incident root-cause analysis, and API design feedback
Identify where AI can replace toil, then build the automation yourself
Architect and build AI-native capabilities like intelligent issue detection, AI-assisted resolution workflows, smart alerting, and anomaly detection
Evaluate and integrate AI/ML capabilities into services where they create measurable operational and business value
Stay current on the fast-moving AI tooling landscape and bring high-signal, opinionated recommendations to the team
Model AI-augmented engineering practices for the team through live demos, pairing sessions, and written guides
Work with engineering leadership to identify and prioritize investments where AI creates the most leverage across teams
Contribute to the broader Walmart engineering community's understanding of how to build and operate AI-augmented systems responsibly
Mentor and develop senior and staff engineers through pair programming, code reviews, design discussions, and career coaching
Build a culture of technical rigor, ownership, and continuous learning within the team
Help establish best engineering practices and operational excellence backed by product, engineering, and operational metrics
Interact with Walmart engineering teams across geographies to leverage expertise and contribute to the tech community
Showcase engineering vision through tech talks, demos, design reviews, and hands-on collaboration
Partner with Product Management and Business to drive the agenda, set priorities, and deliver solutions that improve seller experience and marketplace health
Engage with Product Management, Data Engineering, and Platform teams to translate complex business requirements into robust, maintainable technical solutions
Interact closely with requirements owners and business stakeholders both within your region and across the globe
Work with senior leadership to chart out the future roadmap of the products
Participate in hiring and help build teams that enable high-performing, agile organizations
14+ years of software engineering experience with strong proficiency in object-oriented programming languages
5+ years of experience in systems design, algorithms, and distributed systems
Proficiency in full-stack development with strong backend expertise in one or more of: Java, Python, C++, C#, Go, or Rust
Hands-on experience building and operating cloud-native microservices at scale
Proven expertise in designing and implementing APIs (REST, gRPC) and distributed system patterns
Solid understanding of eventual consistency, idempotency, and processing semantics in event-driven systems
Experience designing and operating services on cloud platforms (Azure, GCP, or AWS) with Kubernetes or equivalent container orchestration
Deep expertise in distributed systems architecture, scalability, and reliability patterns
Hands-on experience building large-scale data pipelines using big data technologies (Spark, Kafka, Cassandra, Hadoop, Hive, Presto, or Airflow)
Understanding of database design, data governance, and compliance considerations
Experience with both RDBMS and NoSQL storage systems
Demonstrated track record of leading technical roadmaps and influencing without authority across teams
Proven ability to mentor engineers and accelerate their growth
Strong communication skills for facilitating alignment between engineering and business stakeholders
Experience setting technical standards, conducting design reviews, and establishing best practices
Expertise in the full software development lifecycle including deployment, observability, and operational excellence
Demonstrate and encourage respect for all; build a high-performing team; seek and embrace differences in people, cultures, ideas, and experiences; create a workplace where all associates feel seen, supported, and connected through a culture of belonging.
Maintain and promote the highest standards of integrity, ethics, and compliance; model the Walmart values and lead by example to foster our culture.
Deliver expected business results while putting the customer/member first.
Consistently raise the bar and seek to improve; demonstrate curiosity and a growth mindset.
About Walmart Global Tech Imagine working in an environment where one line of code can make life easier for hundreds of millions of people. That’s what we do at Walmart Global Tech. We’re a team of software engineers, data scientists, cybersecurity expert's and service professionals within the world’s leading retailer who make an epic impact and are at the forefront of the next retail disruption. People are why we innovate, and people power our innovations. We are people-led and tech-empowered.
We train our team in the skillsets of the future and bring in experts like you to help us grow. We have roles for those chasing their first opportunity as well as those looking for the opportunity that will define their career. Here, you can kickstart a great career in tech, gain new skills and experience for virtually every industry, or leverage your expertise to innovate at scale, impact millions and reimagine the future of retail.
Work Walmart’s culture sets us apart, and we know being together helps us innovate, learn and grow great careers. This role is based in our Bangalore office for daily work, with the flexibility for associates to manage their personal lives
We aim to create a culture where every associate feels valued for who they are, rooted in respect for the individual. Our goal is to foster a sense of belonging, to create opportunities for all our associates, customers and suppliers, and to be a Walmart for everyone.
At Walmart, our vision is "everyone included." By fostering a workplace culture where everyone is—and feels—included, everyone wins. Our associates and customers reflect the makeup of all 19 countries where we operate. By making Walmart a welcoming place where all people feel like they belong, we’re able to engage associates, strengthen our business, improve our ability to serve customers, and support the communities where we operate.
Walmart, Inc., is an Equal Opportunities Employer – By Choice. We believe we are best equipped to help our associates, customers and the communities we serve live better when we really know them. That means understanding, respecting and valuing unique styles, experiences, identities, ideas and opinions – while being inclusive of all people.
Global retail, e-commerce, and supply chain corporation.
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Senior · 14+ years experience
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