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Quick-Commerce & Retail TechSaaS Application DevelopmentDevOps Consulting
Hyperlocal Quick-Commerce Super App
Engineering a 10-minute delivery platform with integrated inventory management for gated communities, unifying grocery fulfilment, home services, and community engagement into a single hyperlocal super app.
10-minute grocery delivery with 99.5% on-time fulfilment
Client
Confidential — Quick-commerce startup
Industry
Quick-Commerce & Retail Tech
Timeline
5 months
Technologies
8+ tools
The Challenge
!Existing grocery apps in the market could not guarantee sub-15-minute delivery windows in dense residential areas because dark-store placement, routing logic, and rider allocation were all treated as separate, loosely coordinated systems. Every extra minute of delay was directly tied to churn, so the client needed a platform architecture built around speed as a first-class constraint, not an afterthought.
!Inventory synchronisation across multiple dark stores was error-prone and caused stockout orders, since each warehouse maintained its own local stock count with no shared source of truth. Orders were frequently accepted for items that had already been sold from a neighbouring store's shared catalogue, forcing manual cancellations that damaged customer trust.
!There was no unified platform for grocery delivery, home services, and community notices in one experience, so residents of gated communities had to juggle three or four separate apps for daily needs. This fragmentation suppressed engagement and made it hard for the client to build the kind of daily habit loop that quick-commerce economics depend on.
!Surge capacity during peak hours — typically 6 to 9 PM — caused order queue backlogs and driver dispatch failures, with the existing prototype architecture unable to absorb more than a fraction of the traffic residents generated during dinner-prep windows. Backlogged orders cascaded into missed SLAs across the entire active order pool, not just the newest ones.
!Payment gateway failures under high concurrency led to abandoned carts and revenue loss, particularly during flash promotions when transaction volume spiked ten-fold in minutes. A single point of payment failure meant the checkout funnel had no resilience, and every gateway timeout translated directly into lost orders.
!Driver dispatch relied on manual coordination and static zone assignments, which meant riders were frequently sent to the wrong dark store or left idle while nearby orders queued elsewhere. There was no live visibility into rider location, load, or estimated availability, making it impossible to optimise assignments in real time.
!The founding team needed to launch and scale within an aggressive 5-month runway to hit a critical fundraising and market-entry window, leaving no room for a slow, phased infrastructure build. Every architectural decision had to be production-grade from day one, since a broken launch would have jeopardised investor confidence.
!Community-specific features like resident verification, society-level notices, and localized service bundling added product complexity beyond a typical delivery app, requiring careful data modelling so gated-community identity and access rules did not collide with the open marketplace logic used for public dark-store delivery.
Our Solution
Built a hyperlocal super app with geofenced dark-store routing so every incoming order is matched to the optimal fulfilment point based on live distance, stock availability, and current rider load, enabling consistent sub-10-minute dispatch even as the store network grew.
Implemented a real-time inventory ledger using event-sourcing, so every stock movement across all dark stores is recorded as an immutable event stream and reconciled centrally, eliminating the double-selling and overselling that had plagued the previous system.
Designed a unified consumer interface combining grocery ordering, home-services booking, and community notices in a single app shell, using a modular feature-flagged architecture so new service categories could be added without destabilising the core ordering flow.
Deployed auto-scaling order orchestration on Kubernetes with horizontal pod autoscaling tied to real-time queue depth, allowing the platform to absorb 10x peak-hour demand spikes without operator intervention or manual capacity planning.
Integrated multiple payment gateways with automatic fallback routing and idempotent transaction handling, so a timeout or decline on the primary provider transparently retries through a secondary gateway without duplicating charges or losing cart state.
Built a driver dispatch engine with live GPS tracking, load-aware assignment scoring, and estimated arrival notifications, giving dispatchers and customers real-time visibility while automatically rebalancing riders across zones as demand shifted.
Established a CI/CD and infrastructure-as-code pipeline from week one so every environment — staging, load-test, and production — was reproducible, letting the team ship daily without regressing the sub-10-minute delivery guarantee.
Modelled gated-community identity and access rules as a separate authorization layer from the open marketplace catalogue, so resident verification and society-specific notices could operate securely alongside standard delivery and services without cross-contaminating permissions or data.
Measurable Impact
Average delivery time
9.2 minutes
Geofenced routing and pre-staged inventory brought average delivery consistently below the 10-minute target.
On-time fulfilment rate
99.5%
The real-time inventory ledger eliminated stockout-driven order failures and delivery delays.
Peak-hour capacity
10x headroom
Auto-scaling infrastructure absorbed dinner-hour surge traffic without order queue degradation.
Payment success rate
99.8%
Fallback gateway routing removed transaction failures even during high-concurrency flash promotions.
Time to market
5 months
The full super app, from dark-store routing to community features, launched within the founders' fundraising window.
Driver utilisation
+35%
Load-aware dispatch reduced idle rider time and reassigned capacity to active demand zones in real time.
Cross-service engagement
3-in-1 platform, +40% weekly active usage
Grocery, home services, and community notices in a single app increased weekly active usage versus single-purpose competitors.
“The platform handled our launch-day traffic without a single hiccup. Our delivery SLA is now a competitive moat — SystimaNX built that foundation, and they did it fast enough that we hit our fundraising milestone on schedule.”
Technology stack
React NativeNode.jsKubernetesRedisPostgreSQLGoogle Maps APIStripeFirebase