Staff, Software Engineer

We are seeking a Staff, Software Engineer to join the International Omni Promotions and Rewards team. This role involves writing and reviewing code, leading design discussions, and making architectural decisions for the next generation of Walmart Promotions and Rewards. The team is currently in an active phase of platform modernization, redesigning and refactoring core systems. The team focuses on customer, associate, and business needs, working with Walmart International, which operates in numerous countries. The specific responsibilities include owning the technical direction for search micro-services such as Core Orchestration & Retrieval, Query-Understanding, Autocomplete, and Facet-Navigation. The role requires designing, building, and optimizing high-throughput, low-latency services, applying best practices for distributed systems, fault-tolerance, and concurrency. It also involves architecting complex query patterns with search engines for relevance, designing data and feature pipelines within the search ecosystem, and leading discovery and design for initiatives by partnering with product and data science teams to translate business requirements into scalable technical solutions. Additionally, the role includes driving proof-of-concepts, validating ideas through prototypes, running A/B experiments, measuring impact on search quality and business metrics, mentoring engineers, fostering excellence, and owning production reliability including observability, on-call duties, and Root Cause Analyses (RCAs).