SENIOR, SOFTWARE ENGINEER
Walmart
Software Engineering
Bengaluru, Karnataka, India
Position Summary...
What you'll do...
About Team:
Search team at Walmart powers the core search experience that connects millions of customers with the right products instantly and reliably. Our mission is to deliver highly performant, fault-tolerant, and intelligent query execution systems that make the act of search seamless for every customer.
We own the runtime layer of the search stack - the backbone responsible for query parsing, retrieval, ranking, and response aggregation. This layer forms the bridge between large-scale data systems, real-time feature computation, and ML-based ranking algorithms. Our systems operate across billions of queries daily, blending precision, recall, and performance to deliver relevant results efficiently.
The Runtime team consists of backend engineers with the goal to make every millisecond count in product discovery. We design and evolve low-latency, high-throughput systems leveraging Java, Solr, Cassandra, and Kubernetes-based distributed infrastructure, continuously pushing the boundaries of scale, resilience, and observability.
What you’ll do:
Design, build, and optimize core Search Runtime services responsible for query interpretation, execution, and response merging across distributed clusters.
Improve performance and reliability of search requests through innovations in caching, parallelization and thread optimization.
Collaborate closely with ranking, indexing, and platform teams to deliver end-to-end scalable runtime architecture that ensures low latency and high relevance.
Enhance query execution frameworks to support new domains, marketplaces, and search modalities
Drive monitoring, alerting, and observability improvements for runtime systems to ensure best-in-class error detection and recovery.
Participate in large-scale system design reviews, performance profiling initiatives, and rollout of next-gen runtime capabilities like hybrid retrieval and vector search.
Prototype and deploy improvements to search orchestration pipelines, ensuring efficient feature fan-out and concurrent model execution.
What you’ll bring:
Strong expertise in Java-based distributed system design with a focus on performance, scalability, and fault tolerance.
Solid foundation in data structures, algorithms, multithreaded programming, and low-latency system design patterns.
Deep understanding of API design, service orchestration, caching techniques, and performance tuning in microservice ecosystems.
Strong analytical and debugging skills for diagnosing issues in large distributed production systems.
Passion for engineering excellence, automation, and building resilient systems that operate at web scale.
Effective communicator who collaborates well across teams — balancing technical depth with practical execution.
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.
Flexible, hybrid 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/Chennai] office for daily work, with the flexibility for associates to manage their personal lives.
Benefits
Beyond our great compensation package, you can receive incentive awards for your performance. Other great perks include a host of best-in-class benefits maternity and parental leave, pto, health benefits, and much more.
Belonging
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.
Equal opportunity employer
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.
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, computer engineering, computer information systems, software engineering, or related area and 3 years’ experience in software engineering or related area.Option 2: 5 years’ experience in software engineering or related area.
Preferred Qualifications...
Outlined below are the optional preferred qualifications for this position. If none are listed, there are no preferred qualifications.
Master’s degree in computer science, information technology, engineering, information systems, cybersecurity, or related area and 1 year’s experience leading information security or cybersecurity projects, 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.Information Technology - CISCO Certification - Certification