Shobby Jacob K.

Experience

1. Lead Consultant

   Walmart Global Tech

   Jun 2022 — Present · Sunnyvale, CA, US

   Led modernization of legacy Cart services and Pricing Engine, upgrading from Spring 2.x / Java 8 to Spring 3.5.6 / Java 21, successfully delivering production releases with zero defects and no customer impact using staggered canary deployment strategies. Achieved QA and Stage readiness within two weeks of project initiation.• Contributed to Walmart Commerce Platform (WCP) onboarding initiatives, delivering features such as Price Alerts and seamless user migration from legacy systems to WCP across international markets including Canada, Mexico, and Chile, ensuring uninterrupted user experience.• Enabled multi-tenant international platform expansion by porting and customizing WCP (US) features for global markets and automating mock generation for upstream tenant integrations.• Leveraged Generative AI solutions to automatically generate tenant-specific service mocks, enabling shift-left integration testing, improving developer productivity, and accelerating delivery cycles.• Ensured applications met information security and compliance standards through secure-by-design practices, source code audits, vulnerability remediation, and proactive production issue triage to maintain high availability and performance.• Analyzed business requirements, performed technical feasibility studies, developed prototypes, and proposed scalable technical solutions aligned with enterprise objectives.• Drove solution architecture and system design for enterprise applications, focusing on flexibility, scalability, resilience, and performance while delivering enterprise-grade implementations.• Provided technical leadership and mentorship to engineering teams through architecture guidance, design reviews, and code quality governance.• Evaluated and introduced modern frameworks and technologies to improve application adaptability, extensibility, and long-term maintainability