Technical debt reduction with measurable results (training project)

Audited a Symfony application using SymfonyInsight (code quality) and the Symfony Profiler (performance), as part of an OpenClassrooms training project.

Performance: Reduced homepage load time by over 70% (1441ms → 375ms) by enabling Twig caching and minifying assets.

Code Quality: Resolved Symfony deprecations and removed unused bundles, based on SymfonyInsight audit findings.

Completeness: Filled in missing translations identified during the audit.

Result: homepage load time reduced by over 70% (1441ms → 375ms).

Full improvement plan and audit report available below (documents in French):

→ Audit Report

→ Improvement Plan

Code audit
SymfonyInsight
Symfony Profiler
Web performance optimization
Doctrine ORM
Case study