Case Study

PostEx

B2B Logistics Platform Modernization

Duration

6 months

Team Size

5 people

Industries
LogisticsSaaS
Technologies
Node.js
PostgreSQL
Kubernetes

Overview

PostEx is a B2B logistics platform serving thousands of merchants globally. The legacy monolithic architecture was becoming a bottleneck, with slow query times and deployment constraints limiting growth.

The Challenge

The platform faced multiple technical challenges: legacy codebase difficult to maintain and extend, performance degradation during peak seasons, deployment downtime affecting service availability, and inability to integrate new services quickly.

Our Solution

We redesigned the architecture as a modern microservices system with event-driven workflows. Implemented caching layers, optimized database queries, and migrated to containerized deployments enabling zero-downtime releases.

Results

40% improvement in API response times

Reduced deployment downtime from hours to minutes

Enabled 3x transaction throughput increase

Improved developer velocity by 50%

Technologies Used

Node.jsPostgreSQLKubernetesEvent StreamingRedis
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