(IND) STAFF, SOFTWARE ENGINEER
Walmart Global Tech · Posted Nov 1
Software development, cloud infrastructure, and retail technology services for Walmart
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About the role
The International Personalization (P13N) team sits within Walmart's International Tech organization and owns the end-to-end personalization stack, including real-time feature pipelines, ML model serving, recommendation engines, search ranking, and experimentation platforms for customers across 19+ countries. This Staff Software Engineer, Backend role focuses on designing and operating high-scale, low-latency distributed systems and productionizing ML models. The engineer will set architectural direction, partner with Data Science and ML Engineering, and mentor engineers across international markets.
What you will do
- Architect & build large-scale personalization systems — design real-time recommendation engines, feature stores, ML model serving pipelines, and experimentation platforms that handle millions of concurrent requests with strict latency SLAs (p99 < 100ms) across international markets
- Drive technical strategy & engineering excellence — set architectural direction for the P13N platform, define best practices across teams, conduct design reviews, and champion observability, reliability, and production excellence (SLOs, error budgets, chaos testing)
- Bridge ML and backend engineering — partner closely with Data Science and ML Engineering to productionize models, optimize inference pipelines, build A/B testing infrastructure, and close the loop between offline training and online serving
- Lead cross-functional initiatives — collaborate with Product, Platform, SRE, and partner teams across US and international markets to translate personalization strategy into technical roadmaps that drive measurable business outcomes
- Mentor & elevate the team — coach senior and mid-level engineers through pairing, design sessions, and thoughtful code reviews; raise the technical bar and foster a culture of learning, experimentation, and continuous improvement.
Skills used in this role
What the employer is looking for
- 8+ years of backend engineering experience — deep expertise in Java, Kotlin, Python, or Go, with a proven track record of designing, building, and operating large-scale distributed systems in production, ideally for personalization, recommendations, search ranking, or ML-serving workloads
- Strong distributed systems & cloud-native skills — hands-on experience with microservices architecture, Kubernetes, Kafka, cloud platforms (GCP/Azure), and databases across SQL and NoSQL paradigms (PostgreSQL, Cassandra, Redis, Elasticsearch)
- Personalization & ML platform exposure — familiarity with ML model serving (TensorFlow Serving, TorchServe), feature stores, real-time feature engineering, experimentation platforms, and recommendation/ranking algorithms
- Technical leadership at scale — demonstrated ability to lead architecture and design for complex, multi-team projects; influence without authority across engineering, data science, and product organizations
- Strong communication & mentorship mindset — clear, concise communicator (RFCs, design docs, executive summaries) with a genuine passion for growing engineers and building diverse, inclusive teams
- Option 1: Bachelor's degree in computer science, computer engineering, computer information systems, software engineering, or related area and 4 years’ experience in software engineering or related area. Option 2: 6 years’ experience in software engineering or related area.
Benefits and support
- incentive awards for performance
- maternity and parental leave
- PTO
- health benefits
About Walmart Global Tech
Walmart Global Tech is the technological powerhouse and engineering arm of Walmart Inc., responsible for building and managing foundational technologies, cloud infrastructure, and software systems. The organization powers global retail operations across Walmart U.S., Sam's Club, and Walmart International, delivering customer experiences and enterprise services worldwide. Operating across multiple global hubs, it unites engineering, data science, product design, and artificial intelligence to digitally transform retail.
- Industry
- Information Technology
- Company size
- 25000+ employees
- Founded
- 2011
- Location
- Bentonville, Arkansas, USA
- Funding stage
- Public Company
Leadership
Executive Vice President, Global Chief Technology Officer and Chief Development Officer
Executive Vice President, AI Acceleration, Product and Design
Senior Vice President and Tech Operating Partner, Walmart International
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