Building a Real-Time Analytics Platform Processing 1M+ Events Per Second
TechFleek partnered with GreySell to design and engineer a scalable, cloud-native business intelligence platform capable of processing over 1 million events per second. The result was a high-performance real-time analytics system that reduced costs, improved query speed, and accelerated enterprise growth.
About GreySell
GreySell is a B2B SaaS business intelligence platform that enables mid-market enterprises to transform raw business data into real-time, actionable insights. Their platform helps companies: • Centralize and unify multiple data sources • Monitor KPIs in real time • Build custom dashboards • Make data-driven strategic decisions As customer adoption increased, GreySell’s existing architecture struggled to handle large-scale data workloads and real-time requirements.

Challenges Faced
Understanding the obstacles that needed to be overcome to deliver success.
Performance at Scale
Large analytical datasets caused slow query execution, impacting user experience and platform reliability.
Complex Data Modeling
Enterprise clients had diverse and evolving data structures, making it difficult to maintain a scalable schema system.
Real-Time Analytics Requirements
Customers demanded live dashboards and instant reporting, but the legacy system relied on batch-based processing.
The Solution
A strategic approach tailored to overcome each challenge effectively.
Columnar Database Architecture
Migrated to a high-performance columnar storage system optimized for analytical queries, improving query execution speed by up to 90%.
Flexible Data Schema Engine
Developed a dynamic schema layer capable of adapting to multiple client data structures without affecting performance.
Real-Time Stream Processing
Implemented an event-driven architecture using distributed stream processing systems capable of handling 1M+ events per second.
Self-Service BI Dashboard Builder
Designed an intuitive drag-and-drop dashboard builder that allowed non-technical users to generate reports and monitor performance metrics independently.
The Outcome
The rebuilt analytics platform transformed GreySell from a performance-constrained startup into a scalable, enterprise-ready SaaS platform. Key Outcomes included Enterprise Client Acquisition, Improved Investor Confidence and Successful Series C Funding. The new real-time analytics architecture positioned GreySell as a competitive, high-performance business intelligence provider in the enterprise SaaS market. Technologies & Capabilities Delivered: Cloud-Native SaaS Architecture, Distributed Stream Processing, High-Performance Data Warehousing, Microservices Infrastructure, Real-Time Event Pipelines, and Scalable API Architecture.
"Working with TechFleek was transformative for our business. They didn’t just solve our technical bottlenecks — they redefined our platform’s scalability and performance. Today, we process more data in a minute than we previously handled in an hour."