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Commerce Platform Case Study

E-commerce Platform Migration

Led a migration from Shopify to a custom commerce platform designed for stronger ownership, lower bottlenecks, and long-term platform flexibility across storefront, catalog, pricing, inventory, and content.

30%API latency reduced
80%Sales growth supported
5Core commerce domains

Overview

This project replaced a vendor-constrained commerce setup with a modular platform that gave the team more control over performance, integrations, and future product direction.

The work was not a rebuild for its own sake. The goal was to create a platform shape that made new features cheaper to deliver while keeping the storefront stable during growth.

Challenge

  • The existing setup limited control over performance tuning, backend ownership, and cross-domain integration patterns.
  • As the business grew, commerce flows needed stronger boundaries across catalog, pricing, inventory, and content so changes could happen without creating avoidable coordination cost.
  • The migration had to improve the system while protecting customer experience and business continuity.

Role

  • Owned technical direction across the migration, including service boundaries, integration patterns, rollout shape, and backend architecture decisions.
  • Worked across frontend, backend, and platform concerns to align implementation paths with delivery risk, performance needs, and operational clarity.
  • Pushed risky decisions earlier in the lifecycle so rollout and scaling issues were addressed before they became production problems.

Architecture

  • Designed modular backend services around core commerce domains instead of expanding a single tightly coupled application.
  • Used GraphQL to improve data access patterns for the storefront while reducing over-fetching and API friction across high-traffic flows.
  • Introduced Kafka-based event flows where asynchronous domain communication created clearer decoupling and better resilience.
  • Applied Redis and cache-aware response design to reduce bottlenecks on frequently accessed commerce paths.

Execution

  • Mapped the platform around five core domains: storefront, catalog, pricing, inventory, and content.
  • Improved API response behavior by removing hotspots in critical flows and reshaping service interactions.
  • Kept the system operable under growth by treating observability, release safety, and platform flexibility as design requirements rather than cleanup work.

Outcomes

  • Reduced API latency by about 30% across core flows.
  • Supported roughly 80% sales growth after the migration while keeping the platform operable at higher scale.
  • Created cleaner ownership boundaries that made future platform evolution more affordable than the previous setup.

Stack

Next.jsNode.jsNestJSGraphQLKafkaRedisMySQL

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