Engineering & Performance Retrospectives

Technical Case Studies

Detailed teardowns on diagnosing complex performance bottlenecks, scaling organic search visibility, and engineering production-grade web systems.

48-Hour Engineering SprintClient: Livora• 8 min read

Scaling Next.js SEO, Core Web Vitals, and PageSpeed to Perfection at Livora

A deep-dive technical retrospective on diagnosing Google indexing roadblocks, optimizing Total Blocking Time (TBT) and Largest Contentful Paint (LCP), and systematically boosting Google Lighthouse metrics from 61 to 93+ on Desktop and 83 on Mobile with 100% scores in Accessibility and SEO.

Desktop Performance

93 / 100

+32 pts (from 61)

Mobile Performance

83 / 100

+33+ pts (from <50)

Accessibility Score

100 / 100

+18 pts (from 82)

Next.js 15/16

Core Web Vitals

Technical SEO

PageSpeed 93+

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Final Desktop PageSpeed Result: 93 Performance, 100 Accessibility, 100 SEO

Enterprise Modernization Sprint (355 Files Refactored)Client: LYXA• 10 min read

Architecting an O(1) SSOT RBAC Engine & Modular Enterprise Layout for LYXA Control Panel

A technical retrospective on eliminating route fragmentation across 180+ routes, engineering an O(1) startup indexing authorization engine to slash guard latency by 99.2% (from 8.4ms to 0.02ms), consolidating layout synchronization from 6 re-renders into 1 atomic commit, partitioning 10 vendor build chunks, and driving automated Lighthouse performance across all 16 administrative suites into the 90+ zone.

Route Guard Latency

0.02 ms

-99.2% (from 8.4ms)

Layout Render Passes

1 Cycle

-80% (from 5–6 passes)

Lighthouse Score (Avg)

89.6 / 100

+8 to +12 pts (Peak 91)

React 18

TypeScript

Vite 6

RBAC & Permissions

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LYXA Control Panel O(1) SSOT RBAC & Layout Optimization Architecture