// CASE STUDIES
Engineering case studies.
Thematic axes from 4 years of continuous engineering: architecture modernization, SQL/Redis performance, media pipelines and augmented tooling.

Legacy Codebase Modernization & Progressive Migration to PHP 8.4 / Laravel 11
Full migration of a high-traffic e-commerce application from legacy framework versions to Laravel 11 and PHP 8.4 with zero downtime, Rector-driven automation, and performance boost.

Multi-Gateway Payment Engine
Design and implementation of a gateway-agnostic, fault-tolerant installment payment processing engine (BNPL). Features automatic gateway failover, synchronous and webhook-based asynchronous tracking, distributed lock idempotency, and dynamic balance recalculation upon order modification.

Accelerating Alternative Accommodation Comparison in a Custom Booking Engine
How we cut accommodation search latency from 12s to 200ms using strategy routing, async background jobs, and flexible caching (Cache::flexible) without sacrificing rate accuracy.