Portfolio & Case Studies

Production Systems, Cloud Architectures & AI Agents

A curated selection of production architectures, cloud systems, autonomous AI agents, and enterprise data platforms engineered for high resilience, security, and measurable business impact.

Generative AI • MarTech
SmartWhale 6 Months

Transforming SMS & WhatsApp Marketing with an AI Command Agent

Embedded a production-grade autonomous AI Command Agent directly into an omni-channel marketing platform. Enabled non-technical operators to execute, optimize, and diagnose complex multi-channel campaigns through natural language prompts while enforcing strict enterprise role-based guardrails.

Architectural & Engineering Highlights
  • Autonomous natural language campaign creation with parameter validation
  • Real-time campaign performance diagnostics & automated copy suggestions
  • Strict enterprise role-based access control (RBAC) & boundary enforcement
  • Resilient agent orchestration using LangGraph state machines & OpenAI GPT-4o
“This AI agent completely changed how we operate campaigns. What used to take multiple dashboards and manual setup can now be done with a simple command... It’s not just a chatbot. It’s like having a marketing operations assistant built directly into the platform.” Balaji — CEO, SmartWhale
Healthcare IoT • RPM SaaS
Omnyk Health 6-9 Months

OmnyTraq – Scalable Remote Patient Monitoring Platform

Architected a high-reliability Remote Patient Monitoring (RPM) platform enabling hospitals and healthcare providers to continuously monitor patient vitals in real time via connected medical IoT devices, with automated onboarding and device logistics.

Architectural & Engineering Highlights
  • High-concurrency telemetry streaming from connected medical IoT devices
  • Automated clinical patient onboarding & caregiver monitoring consoles
  • Real-time device inventory tracking, hardware provisioning, & logistics
  • Secure healthcare data management with role-based clinical access controls
“This platform has revolutionized our patient monitoring capabilities. The real-time insights and reliability have significantly improved our care delivery.” Project Manager — Omnyk
Cloud Architecture • Serverless
Iskcon 3-6 Months

Iskcon Serverless 80G Receipt Generation Engine

Designed an event-driven serverless receipt engine that generates and dispatches thousands of 80G tax receipts instantly via email and messaging during high-volume fundraising drives, replacing days of manual backlog with sub-second execution at near-zero idle cost.

Architectural & Engineering Highlights
  • Instantaneous PDF tax receipt generation via AWS Lambda functions
  • High-throughput asynchronous queuing using AWS SQS & Amazon S3 storage
  • Multi-channel delivery pipelines via Amazon SES and instant messaging APIs
  • 100% serverless elasticity with zero idle compute costs during off-peak periods
“The solution has transformed how we manage donor communications. What used to take hours now happens instantly, allowing our team to focus on our core mission.” Project Manager — Iskcon
Government • Space Research
ISRO 3-6 Months

ISRO – I-GRASP Research Collaboration Portal

Engineered the Indian Grant-in-aid for Research in Space Science and Technology (I-GRASP) platform for the Indian Space Research Organisation (ISRO). Streamlined nationwide academic research proposals, multi-tier committee peer reviews, and grant management workflows.

Architectural & Engineering Highlights
  • Centralized digital submission platform for university research proposals
  • Multi-tier evaluation workflows, peer reviews, & grant lifecycle tracking
  • Government-grade security compliance, role authorizations, & audit trails
  • Scalable enterprise CMS architecture supporting high-volume grant cycles
“The portal has streamlined our research collaboration process tremendously. Researchers can now access and submit proposals with ease.” Project Manager — ISRO
Big Data • Distributed Systems
Data Company 3-6 Months

Distributed Log Aggregation & High-Throughput ETL Pipeline

Architected a centralized log aggregation and ETL pipeline across a fleet of 100+ production application servers. Automated the ingestion, parsing, normalization, and indexing of multi-gigabyte daily unstructured log streams into Elasticsearch for instant observability and anomaly detection.

Architectural & Engineering Highlights
  • Automated log parsing, enrichment, and normalization across 100+ server nodes
  • High-availability Elasticsearch cluster with automated index lifecycle management
  • Real-time Kibana operational dashboards & proactive alert thresholds
  • Reduced system anomaly investigation and query response from hours to seconds
“Working with Quilltez has been exceptional. They delivered a robust, scalable solution that exceeded our expectations and timeline.” Project Manager — Data Company
Enterprise CRM • Operations
Iskcon Donor Care 3-6 Months

Iskcon Enterprise Donor Care & Relationship Management System

Developed a mission-critical Donor Relationship Management (DRM) platform to manage donor profiles, pledge schedules, tax exemptions, and communication history across nationwide NGO branches, replacing disconnected spreadsheets with a unified single pane of glass.

Architectural & Engineering Highlights
  • Unified donor master directory consolidating historical fragmented records
  • Automated pledge tracking, recurring contribution reconciliations, & audit reports
  • Dynamic interactive operational consoles built with Laravel & Livewire
  • Strict data privacy, role-based coordinators, and audit history logs
“The solution has transformed how we manage donor communications. What used to take hours now happens instantly, allowing our team to focus on our core mission.” Project Manager — Iskcon Donor Care Systems
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