B2B SaaS platform scaling to 10k concurrent users
Re-architected core systems to handle growth, implementing better caching, database optimization, and infrastructure improvements.
Client
B2B SaaS Platform
Industry
Software
Duration
5 months
Impact
10x improvement in concurrent capacity
The Challenge
The platform was experiencing severe performance degradation as user base grew. Response times exceeded 10 seconds during peak usage, leading to customer complaints and churn risk. The monolithic architecture and unoptimized database queries couldn't scale beyond 1,000 concurrent users.
Our Solution
Conducted comprehensive performance profiling to identify bottlenecks across application, database, and infrastructure layers.
Implemented multi-layer caching strategy using Redis for session data, query results, and computed values.
Refactored critical database queries and added strategic indexes, reducing query times by 80-95%.
Introduced database read replicas to distribute query load and improve read performance.
Migrated compute-heavy operations to async background jobs with proper queue management.
Implemented auto-scaling infrastructure to handle traffic spikes automatically.
Added comprehensive monitoring and alerting to catch performance regressions early.
Results & Impact
Platform now handles 10,000+ concurrent users with consistent performance
Average response time reduced from 8 seconds to under 400ms
Database query performance improved by 90% on critical paths
Infrastructure costs increased only 30% while handling 10x traffic
Customer satisfaction scores improved by 35%
Churn rate decreased by 18% after performance improvements
Technology Stack
"They didn't just fix the immediate problems—they gave us a foundation to scale confidently for the next several years of growth."
David Park
CTO