production

ESS Smart Quest - Employee Survey Management System

Diagnosed and resolved critical data accuracy bugs and frontend responsiveness issues in a legacy system, improving stability and user experience.

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01Overview

Working on ESS Smart Quest required a deep dive into legacy code to fix production-stopping bugs and implement new, client-requested features without breaking existing functionality.

02Features

Enterprise-scale survey management and response collection
Fixed critical data accuracy issues in survey aggregation
Improved mobile and desktop frontend responsiveness
Implemented client-specific feature enhancements
Enhanced system stability and user experience

03Engineering Decisions

Conducted thorough root-cause analysis before refactoring legacy calculation paths.

Maintained system uptime while deploying critical fixes to the production database.

04Challenges & Solutions

Challenge

Legacy code with inconsistent data structures causing survey errors.

Solution

Refactored core aggregation queries to use standardized SQL patterns, ensuring data accuracy across all report types.