Legacy Code Refactoring & Performance Optimization

By upgrading aging infrastructure and modernizing the application's architecture, Innovecs significantly boosted speed, stability, and user engagement across the client’s suite of digital collaboration tools.
High Tech

Challenge

The application suffered from stability issues and performance bottlenecks caused by outdated code and aging technology infrastructure, with 23% of users experiencing slow load times and application crashes occurring 3x more frequently than industry benchmarks

Solution

  • Implemented a systematic approach to performance optimization focusing on application stability improvements, legacy code rewrites, and adoption of modern technologies and platforms.

  • Established monthly brainstorming sessions generating an average of 12 performance hypotheses per month, with changes measured against key performance indicators

refactoring
Application performance

Technologies used

Apache Kafka
Canvas API
Elasticsearch
Express.js
GraphQL
Node.js
Progressive Web Apps (PWA)
React
Service Workers
TypeScript
WebGL
WebRTC
WebSockets

Results

78%
improvement in application speed
90%
reduction in crash rates through continuous optimization cycles
8.5 sec to 2.1 sec
average load times decrease
34%
improvement in user retention rates

Business Value

  • Significantly Enhanced User Experience

    • Faster, smoother interactions across all user journeys.

    • Near elimination of crash-related user drop-offs.

  • Increased Platform Reliability

    • Downtime reduced dramatically through proactive refactoring and monitoring.
  • Improved Customer Retention

    • More users staying engaged thanks to better load times and responsiveness.
  • Operational Efficiency

    • Streamlined codebase allows for faster feature rollouts and easier maintenance.
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Karyna Prykhodko Innovecs
Karyna Prykhodko
Delivery Manager
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