All case studies
WalmartFull Stack Developer

Student Engagement Product Platform

Owned a student-engagement product from HR needs and resource planning through design, engineering, certification, and production for 375K students and 3,000+ concurrent users.

Timeline
June 1, 2020 — March 1, 2022
Primary contribution
Full Stack Developer
Student Engagement Product Platform illustrated product use case

Implementation

A closer look at the product interface and the implemented experience.

Student Engagement Product Platform implementation interface

Product challenge

Walmart India HR needed one reliable product for campus engagement across major colleges: events, AMAs, quizzes, rewards, placement activity, and the operational visibility behind them. As the sole developer, I needed to translate stakeholder needs into a feasible product, cost it, build it, pass enterprise controls, and operate it in production.

Product and engineering approach

Shape the product around the operating team

  • Designed workflows for real-time events and hackathons, AMA and Q&A sessions, quizzes and leaderboards, and a point-based reward store.
  • Built an admin product for event management, student analytics, resource use, and system load so HR could run the platform without engineering intervention for routine work.

Own the complete implementation

  • Built the user and admin experiences with React and TypeScript, mobile applications for iOS and Android, and backend services with Express.js, PostgreSQL, and Redis.
  • Designed for more than 3,000 concurrent users and a total audience of about 375,000 students.
  • Produced compute, storage, network, scaling, and cost estimates so technical architecture could be evaluated as a business decision.
  • Took the containerized product through Walmart Cloud Native Platform certification, service-mesh deployment, and security and compliance review.

Outcome

  • Delivered the platform end to end as a single hands-on owner, from product shaping and interface design through deployment and maintenance.
  • Supported a potential audience of 375,000 students and more than 3,000 concurrent users in Walmart’s production environment.
  • Passed WCNP certification plus internal security and compliance reviews.
  • Reduced manual coordination for campus engagement and gave HR clearer control over events, participation, and platform operations.
  • Connected scope, infrastructure, and cost planning early enough to avoid treating production economics as a post-launch concern.

Technology stack

React
TypeScript
Express.js
PostgreSQL
Redis
Mobile Apps
Walmart Cloud Native Platform (WCNP)
Service Mesh
Project Management