Project Case Studies

$ yousuf-portfolio/projects --list

Executing directory traversal... displaying production case studies from actual work across payments, distributed systems, microservices, messaging, and infrastructure optimization. Need a walkthrough after reviewing the list? Use the contact page to request it.

find project --name= search

Selected Case Studies and Delivery Highlights

Each project card maps to real production work, with results tied to scalability, cost reduction, reliability, and platform capability.

Pine Labs V3 payment platform — UPI, Subscriptions, Wallet, Payouts
Mnemosyne — AI-crafted JVM heap-dump analyzer in Rust
Microservices migration, Video KYC, messaging, and search acceleration at Exotel/Ameyo

mnemosyne.rs

Mnemosyne — AI-crafted JVM Memory Analyzer

Rust heap-dump analyzer achieving 2.25 GB/s parse throughput with only 5 MB RSS for a 156 MB dump (0.03x ratio). Validated stable memory scaling through 2 GB heap dumps. Built end-to-end via AI-augmented development (Claude Code, MCP). Integrated Model Context Protocol to expose analysis to Claude and other MCP clients as an AI copilot for leak detection. Shipped 5-target multi-platform releases via GitHub Actions; published 2 crates to crates.io.

Rust MCP JVM AI-augmented GitHub Actions

./view_repo

v3-payment-platform.java

Pine Labs V3 Payment Platform

Co-leading the V3 platform processing 507K+ daily transactions and INR 96 Cr+ daily GTV. Own UPI (311K txns/day, 61%), Subscriptions, Brand Wallet, and e-Challan. Delivered Subscription lifecycle, Payout maker-checker with ~100K payouts/day, and rebuilt Order & Payment deep-search — dropping stuck-order count to near-zero. Delivered 176 PRs and reviewed 1,140 across the team in ~11 months.

Java Kafka UPI Subscriptions Kotlin

monolith-to-microservices.java

Monolith-to-Microservices Migration

Delivered 20x platform scalability at Exotel/Ameyo. Implemented Configuration Management, Central Fetcher, Interaction Service, CRM Connector, and Chat Service. Powered HDFC Bank's 20,000-user customer-support deployment on a single interface. Stack: Java, Spring Boot, Spring Batch, Kafka, Redis, PostgreSQL, Citus, Spring Cloud Gateway.

Spring Boot Kafka Redis Citus

voice-bot-optimizer.py

Voice Chatbot Optimization

Engineered a voice-chatbot flow optimization that halved telecommunications expenses. Served as DRI for Level-4 production incidents, driving a 30% drop in recurring issues through structured RCA and long-term remediation.

Voice Bot DRI RCA Production Ops

video-kyc-service.ts

Video KYC Service & SDK

Authored HLD/LLD and launched a Video Microservice and reusable Video SDK for video customer support and video-KYC. Adopted by Equitas Bank and Khan Bank Mongolia for remote identity verification. Used Twilio and Janus as media providers.

Twilio Janus Video KYC HLD/LLD

chat-service-integration.go

Chat Service Integration

Integrated an open-source XMPP service with custom enterprise features to deliver scalable real-time chat for 20,000+ users. Part of the Ameyo omnichannel contact-center platform.

XMPP Realtime Messaging Omnichannel

edge-channel-mesh.c

Social Media & Email Channels

Connected Twitter, Facebook, and Microsoft Exchange email via OAuth2; migrated ticket search from PostgreSQL to Elasticsearch, improving search latency and scalability for enterprise contact-center customers.

OAuth2 Exchange Elasticsearch Social APIs