Android development for Geo Developer.

• Architected the next generation payments experience at walmart.com, and owned 2 core payments features: amend order and EBT (electronic benefits transfer).

• Optimized network calls to improve the payment module cATF (content above the fold) times by up to 75%, and improve user experience.

• Led initiative to overhaul 200+ payments test cases to improve code confidence, maintainability of tests, and parallelization of test runs during CI.

• Mentored other engineers and provided feedback on code design and quality.

Main Technologies Used:

React, TypeScript, GraphQL, Next.js, Nrwl/Nx, Fastify

• Created a proxy server for cart backend using Java Spring to improve security, performance, and reliability of cart services.

• Attained a 5% reduction in main bundle size and 11.1% reduction in total bundle size for cart and PAC applications respectively, as part of a self-driven initiative to address tech debt.

• Led development and end to end testing efforts for Walmart Fulfillment Services (WFS) across cart and PAC web pages and React Native cart to allow sellers to utilize Walmart's state-of-the-art supply chain to rapidly grow their business.

• Prepared and supported 8 different front end applications across Cart & Checkout for holiday season by supporting stress tests, pushing necessary last minute code changes, creating Splunk dashboards to improve monitoring on React Native applications, and presenting the holiday support playbook to the other 25+ front end engineers within Cart & Checkout. Awarded MADA (Make a Difference Award) for holiday support efforts.

• Architected a new item recommendations feature on cart and PAC (post add to cart) pages, banking a 0.42% increase in GMV (Gross Merchandise Value), and 0.26% increase in visitor conversion over previous feature.

• Led development and release for PAC full page redesign, transforming PAC from a modal to full page, banking a 0.92% increase in GMV and 0.47% increase in visitor conversion over PAC modal.

• Constructed features for NextDay delivery on cart and PAC pages to actualize 1 day free delivery to walmart.com customers.

• Automated testing for apps using Appium, and for web using Nightwatch.js with SauceLabs support, to facilitate fast-paced and regression-free software development.

• Ensured cart and PAC applications met A and AA accessibility guidelines outlined by WCAG (Web Content Accessibility Guidelines) to provide equal access and opportunity to customers with disabilities.

• Implemented tracking for user interactions and page performance to monitor and improve user conversion rates.