Scaling Omnichannel Retail POS to 450+ Physical Outlets with Zero Downtime
How Manikarnika Technologies engineered an offline-first Retail OS handling 50,000 daily POS transactions across 450+ stores while achieving 99.98% inventory ledger accuracy.
1. Client Challenge
The client suffered from frequent checkout freezes during peak weekend sales, inventory mismatches between store shelves and online e-commerce, and high sync latency across legacy desktop POS terminals.
2. Research Approach
We conducted on-site field observation across 12 high-density retail stores, monitoring network dropouts, scanner latency, and cashier ergonomics during peak checkout surges.
3. Technological Architecture
We architected an offline-first local SQLite caching node on each POS terminal connected via a lightweight WebSocket heartbeat protocol to an AWS EKS microservice cluster powered by Kafka event streams.
Technologies & Tools
4. Business Outcome & Lessons Learned
The client eliminated checkout bottlenecks, increased cashier throughput by 42%, and reduced annual inventory shrinkage by $1.4M.
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