FinTech Scale-Up: From 100 to 10,000 TPS
Impact at a Glance
Scaling Payments Under Explosive Growth
A FinTech company was processing 100 transactions per second (TPS) when a major partnership deal required them to scale to 10,000 TPS within 6 months. Their monolithic architecture, built for rapid MVP launch, couldn't handle the load. Transaction failures increased to 5%, latency spiked to 2+ seconds, and they lacked security compliance required for the new partnership.
Challenge 1
Monolithic architecture couldn't scale beyond 200 TPS
Challenge 2
Database bottlenecks causing transaction timeouts
Challenge 3
No industry-standard compliance framework in place
Challenge 4
Limited observability made troubleshooting difficult
Challenge 5
Manual deployment process prone to errors
The Bottom Line
Without a comprehensive solution, these challenges were creating bottlenecks, increasing costs, and preventing the business from scaling effectively. A strategic approach was needed.
Microservices Transformation & Compliance Acceleration
Atlas Business Software led a comprehensive platform transformation over 8 months, decomposing the monolith into microservices, implementing event-driven architecture with Kafka, and helping the client achieve industry-standard security compliance.
Implementation Roadmap
Our strategic, phased approach to success
Phase 1: Assessment & Quick Wins (Month 1)
Conducted performance audit, identified bottlenecks, implemented database query optimization and caching layer for 40% immediate performance improvement.
Phase 2: Architecture Redesign (Months 2-3)
Designed microservices architecture with clear domain boundaries. Implemented event-driven patterns using Kafka for async processing. Set up infrastructure-as-code with Terraform.
Phase 3: Incremental Migration (Months 4-6)
Strangler fig pattern to gradually migrate services. Started with payment processing core, then auth, then reporting. Zero-downtime migrations with feature flags.
Phase 4: Compliance & Hardening (Months 7-8)
Implemented security controls: tokenization, encryption, audit logging, network segmentation. Passed external audit and achieved industry-standard compliance.
Key Decision 1
Event-driven architecture with Kafka for high-throughput async processing
Key Decision 2
PostgreSQL with read replicas and Redis caching for data layer
Key Decision 3
Kubernetes on cloud platform for container orchestration and auto-scaling
Key Decision 4
Secrets management tool for security compliance
Key Decision 5
Comprehensive observability with monitoring platform and custom dashboards
Technology Stack
Powerful tools for a powerful solution
100x Scale Achieved with 99.99% Reliability
The client successfully scaled from 100 to 15,000 TPS (exceeding the 10,000 TPS goal), achieved industry-standard security compliance, and landed a significant annual partnership deal.
Transaction Throughput
API Latency (p95)
System Uptime
Transaction Failure Rate
Deployment Frequency
Business Impact
Long-term value delivered to the organization
Landed significant annual partnership deal
Reduced infrastructure costs by 30% through optimization
Decreased incident resolution time from hours to minutes
Enabled product team to ship features 3x faster
"Atlas didn't just help us scale—they transformed how we build software. The microservices architecture they designed handles 100x more load than our old system, and we achieved security compliance in record time. This partnership deal wouldn't have happened without them."
Services Behind This Success
Discover the specific services and expertise that powered this transformation