Case Studies

Real Systems. Real Scale. Real Outcomes.

A selection of systems I've built, fixed, and scaled — across backend architecture, cloud infrastructure, and AI systems.

Each project focuses on solving real business problems, not just writing code.

What You'll See Here

These are not demo projects.

Actual problems being solved
Decisions under real constraints
Improved system designs
Measurable business outcomes
Cloud + Backend Architecture10k TPS / 99.99% Uptime

Global Fintech Infrastructure

Problem

Monolithic system unable to handle growing transaction load.

Solution

Re-architected into microservices with optimized database and infra setup.

Outcome

Handled 10k+ transactions/sec with zero downtime and improved system reliability.

AWSNode.jsPostgreSQLTerraform+1
AI Engineering + Automation40% Efficiency Gain

AI-Powered CRM Ecosystem

Problem

Manual sales workflows limiting conversion rates.

Solution

Built custom LLM agents integrated into CRM workflows.

Outcome

40% increase in lead conversion efficiency.

Next.jsPythonOpenAIPinecone+1
Full Stack Development200ms Latency Reduction

Enterprise E-Commerce Scaling

Problem

High latency during peak traffic affecting sales.

Solution

Optimized backend, caching, and infrastructure.

Outcome

Reduced latency by 200ms and improved peak performance stability.

ReactGoRedisCloudFront+1
Backend + System Design500+ Tenants / 35% Cost Reduction

Scalable SaaS Multi-Tenant Platform

Problem

High infra costs and complexity in scaling individual tenant environments.

Solution

Hybrid data isolation model with automated serverless provisioning.

Outcome

35% infra cost reduction and seamless scaling to 500+ enterprise tenants.

Node.jsPostgreSQLAWS LambdaTerraform+1
50ms
Data Engineering + Backend50M+ Events / Sub-second Latency

Real-Time Analytics & Event Pipeline

Problem

Hours of delay in reporting, preventing real-time business decisions.

Solution

Kafka-based streaming pipeline with ClickHouse for real-time OLAP.

Outcome

Sub-second reporting latency and 50% reduction in data storage costs.

Apache KafkaClickHouseGoRedis+1
DevOps + Infrastructure70% Faster Deployments / Zero Downtime

DevOps & Deployment Pipeline Overhaul

Problem

Fragile, manual deployments causing frequent production outages.

Solution

GitOps transformation with automated CI/CD and container orchestration.

Outcome

70% reduction in deployment time and zero-downtime releases.

GitHub ActionsTerraformAWS ECSArgoCD+1
Backend + Refactoring40% Fewer Bugs / 2x Velocity

Legacy Monolith to Modular Architecture

Problem

High technical debt in monolith slowing down all development.

Solution

Incremental modernization using the Strangler Fig pattern.

Outcome

40% reduction in bugs and doubled feature development speed.

PythonDjangoPostgreSQLFastAPI+1
OCR
AI + Automation80% Manual Work Reduced / 90% Faster

AI-Based Document Processing System

Problem

Incredibly slow and error-prone manual document review at scale.

Solution

Multi-stage pipeline combining OCR, NLP classification, and LLM extraction.

Outcome

90% faster processing and 80% reduction in manual review workload.

PythonPyTorchAWS TextractOpenAI+1
Realtime Systems100k Concurrent Users / <100ms Delivery

Scalable Real-Time Chat Infrastructure

Problem

WebSocket connection drops and high latency during spikes.

Solution

Distributed Elixir/Phoenix cluster with Redis Pub/Sub orchestration.

Outcome

Handled 100k concurrent users with sub-100ms global latency.

ElixirPhoenix ChannelsPostgreSQLRedis+1
-40%
Cloud + DevOps40% Cost Savings / 15% Performance Gain

Cloud Cost Optimization & Infra Cleanup

Problem

Uncontrolled, invisible cloud spend with significant waste.

Solution

Systematic FinOps audit with automated monitoring and rightsizing.

Outcome

40% monthly cost savings with improved system performance.

AWS Cost ExplorerCloudWatchTerraformPython+1

How I Approach Systems

I don't approach projects as isolated tasks.

Designed for Scale

Systems that handle growth from day one.

Failure-First Thinking

Considering failure scenarios and building resilience.

Cost & Performance

Finding the sweet spot between cloud spend and speed.

Future Maintainability

Clean code and documentation for long-term ownership.

Experience Across Domains

Fintech systems
SaaS platforms
AI-driven products
E-commerce systems
Internal business tools

Have a similar system challenge?

If you're dealing with scaling issues, technical debt, or building from scratch — I can help.

Book a technical discussion

Best suited for founders and teams building serious products.

Backend Systems & Scalable Architecture Case Studies

These case studies reflect real-world experience in designing and scaling backend systemscloud infrastructure, and AI-powered platforms.

From early-stage startups to growing systems handling real traffic — the focus is always on performance, reliability, and long-term scalable systems and system design.