The Challenge: Building an Agile POS & Management Ecosystem

In high-volume restaurant dining, operational efficiency is directly tied to business survival. Our client, Resturon, operated over 150 franchise locations but struggled with severe legacy drag: order-to-kitchen latencies averaged 3 minutes, local internet outages stalled card payments, and inventory levels could only be calculated at the end of the business day. They needed a single, integrated platform that was fast, responsive, and resilient to field connectivity dropouts.

We identified three core engineering hurdles: designing a zero-downtime offline-first local POS database, reducing ordering routing latency between table tablets and kitchen displays, and building an automated real-time inventory synchronization engine to track stock levels dynamically across multiple franchise hubs.

  • Decomposing monolithic franchise tracking into decoupled Web & Mobile service entities.
  • Building local edge database replicas using SQLite and background service workers to ensure offline capabilities.
  • Real-time websocket dispatching to sync orders between dining staff, kitchen staff, and management portals.
  • Writing automated end-to-end integration tests to guarantee 100% data consistency during reconnects.
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Solution & Architecture

We designed a hybrid edge-cloud architecture. Locally, each restaurant runs a lightweight Docker container containing a Node.js edge-sync daemon and a localized database replica. Waitstaff send orders via responsive Android tablets directly to the local edge cluster via local Wi-Fi, bypassing outer network latency. The local POS resolves orders in under 150ms and routes them to kitchen display grids immediately.

If outer internet drops, the restaurant continues to operate at full capacity. Local sales are logged securely in the encrypted edge cluster. Once internet connectivity is restored, the edge daemon runs an optimistic conflict-free replicated data type (CRDT) synchronization protocol to sync sales data back to the central AWS-hosted Django ledger database, updating stock metrics in real time.

To support corporate decision-making, we designed a responsive executive dashboard using React and Tailwind CSS. Franchise managers can filter real-time transaction indices, inspect dynamic labor-cost distributions, and configure supply threshold alerts from any mobile device.

We also implemented automated security pipelines to ensure compliance with PCI-DSS payment regulations. All payment payloads are tokenized at the edge before dispatching, preventing local storage of sensitive credit card details. The entire deployment is managed via GitHub Actions CI/CD to AWS Elastic Container Service (ECS), enabling continuous integration without downtime.

Solution & Architecture

We designed a hybrid edge-cloud architecture. Locally, each restaurant runs a lightweight Docker container containing a Node.js edge-sync daemon and a localized database replica. Waitstaff send orders via responsive Android tablets directly to the local edge cluster via local Wi-Fi, bypassing outer network latency. The local POS resolves orders in under 150ms and routes them to kitchen display grids immediately.

If outer internet drops, the restaurant continues to operate at full capacity. Local sales are logged securely in the encrypted edge cluster. Once internet connectivity is restored, the edge daemon runs an optimistic conflict-free replicated data type (CRDT) synchronization protocol to sync sales data back to the central AWS-hosted Django ledger database, updating stock metrics in real time.

To support corporate decision-making, we designed a responsive executive dashboard using React and Tailwind CSS. Franchise managers can filter real-time transaction indices, inspect dynamic labor-cost distributions, and configure supply threshold alerts from any mobile device.

We also implemented automated security pipelines to ensure compliance with PCI-DSS payment regulations. All payment payloads are tokenized at the edge before dispatching, preventing local storage of sensitive credit card details. The entire deployment is managed via GitHub Actions CI/CD to AWS Elastic Container Service (ECS), enabling continuous integration without downtime.

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key features

Development capacity

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.

Very talented engineer

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.

ML & AI wide expertise

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.

Great it service

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.

Other Works

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A high-performance offline-first POS automation platform deployed across 150 franchise hubs with real-time sync.

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A high-performance offline-first POS automation platform deployed across 150 franchise hubs with real-time sync.

work work work

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.

work work work

We provide full-lifecycle software consulting, scoping business requirements and translating them into robust, maintainable code architectures.