KaajLagbe.com
Bangladesh's next-generation on-demand services marketplace. Incubated from day one by Solvence Labs with enterprise-grade reliability and high-velocity mobile architecture.
Real-Time Geospatial Matching Engine
Custom geospatial indexing using MongoDB 2dsphere and Redis geo-radius queries. Computes route times across Dhaka traffic grids to dispatch the highest-rated verified specialist within 3km.
How Solvence Labs Engineered KaajLagbe for High Concurrency
Building an on-demand service ecosystem in a hyper-dense urban setting like Dhaka demands zero-downtime resilience, low battery consumption on mobile clients, and graceful fallback across volatile 3G/4G connections.
Geospatial Indexing
MongoDB 2dsphere spherical indexes calculate nearest verified professionals with sub-10ms query execution across high-density Dhaka coordinates.
Sub-Second Dispatch
Redis geo-radius caching pairs instant push notifications and SMS gateways to achieve <14 minute technician door-to-door dispatch.
Zero-Trust Vetting
Multi-tier identity clearance pipeline incorporating biometric NID checks, police verification, and rigorous technical trade examinations.
Escrow Protection
Automated payment escrow prevents overcharging and pricing ambiguity, releasing milestone payouts only upon verified customer OTP signature.