Keerthivasan Karunanithi
Application Reliability & Production Support Engineer
I troubleshoot, automate, and improve enterprise applications across APIs, backend services, databases, monitoring platforms, and cloud environments.
Python · REST APIs · SQL · Cloud · Observability · AI
━System Status: Operational | 99.9% SLA
Performance Metrics
About Me
I am an Application Reliability & Production Support Engineer with 4+ years of experience at Accenture, where I manage 100+ monthly incidents across 10+ enterprise applications while maintaining 99.9% SLA.
My work centers around L2/L3 technical support, where I troubleshoot and resolve critical production issues across REST APIs, backend services, SQL databases, and cloud platforms like Azure and PCF.
I perform root cause analysis using Dynatrace and Kibana, debug API request/response cycles, write optimized SQL queries for production validation, and build Python automation scripts that have eliminated 130+ hours of manual work per month.
Beyond production support, I contribute to frontend debugging and UI fixes using JavaScript and React, and I've built comprehensive monitoring dashboards for application health tracking.
Currently, I'm expanding into backend engineering and AI-powered applications, working with FastAPI, LangGraph, RAG, and Google Gemini to build intelligent automation solutions.
What I Do
Core capabilities across production support, backend development, and automation
Prod Reliability
Ensure enterprise applications run smoothly with minimal downtime through proactive monitoring and rapid incident response
Backend & APIs
Build and maintain scalable REST APIs and backend services for enterprise applications
Automation & AI
Develop automation scripts and AI-powered solutions to eliminate manual work and improve efficiency
Professional Experience
Production support and full-stack development experience
Custom Software Engineering Analyst
Jan 2022 - Present
L2/L3 production support engineer managing 100+ monthly incidents across 10+ enterprise applications with 99.9% SLA compliance
Key Achievements
- -Resolved 100+ monthly incidents including 20+ P1/P2 critical issues across 10+ enterprise applications, maintaining 99.9% SLA through systematic triage and rapid response
- -Performed root cause analysis using Dynatrace and Kibana log correlation to isolate API failures, database bottlenecks, and service disruptions, reducing incident recurrence by implementing preventive measures
- -Debugged REST API request/response cycles and backend service logic using Postman, cURL, and production logs to resolve integration failures and data inconsistencies
- -Wrote optimized SQL queries for production data validation, troubleshot MySQL database performance issues, and verified data integrity across critical business workflows
- -Contributed JavaScript/React debugging and UI fixes on internal tools, resolving frontend rendering issues and improving user experience for support teams
- -Engineered 9 Python automation scripts eliminating 130+ hours/month of manual incident response, log analysis, and health check operations
- -Built comprehensive Dynatrace dashboard consolidating application health, alert tracking, and database metrics for 13 cloud-deployed applications on PCF and Azure
- -Authored 108+ knowledge base articles and standard operating procedures, mentored junior engineers on incident management best practices and technical troubleshooting methodology
Technologies
Python · JavaScript · React.js · Node.js · REST APIs · SQL · MySQL · Dynatrace · Kibana · PCF · Azure · JIRA · ServiceNow
Software Intern
Mar 2021 - Jul 2021
Full stack development with MEAN stack
Key Achievements
- -Developed and tested REST APIs using Node.js on a MEAN Stack app
- -Built frontend UI modules and assisted with MongoDB-backed end-to-end testing
Technologies
MongoDB · Express · Angular · Node.js · REST APIs
Featured Projects
AI agents, full-stack applications, and automation solutions
AI Agent
Expense Tracker Agent
AI-powered expense tracking with Telegram integration
AI-powered expense tracking agent with Telegram bot/webhook integration and REST API backend. Features hands-on webhook debugging and API-level troubleshooting capabilities.
Python · FastAPI · LangGraph · Google Gemini · Telegram Bot · REST API
AI Agent
Document RAG API
REST API for document retrieval and Q&A
Built and debugged a REST API end-to-end for document retrieval augmented generation, from request handling to backend data retrieval logic using vector database.
Python · FastAPI · ChromaDB · Vector Embeddings · RAG
Web Application
Chatzz - Full-Stack Chat App
Real-time chat application with modern features
A full-stack real-time chat application built as sole developer. Hands-on experience diagnosing issues across client-side JavaScript/React and server-side API layers.
Next.js · React · TypeScript · Prisma · MySQL · Pusher · NextAuth.js · Tailwind CSS
AI Agent
CLI Chatbot
Feature-rich terminal chatbot powered by Google Gemini
Built a modular command-line AI chatbot with streaming responses, multiple AI personas, model switching, conversation memory, automatic summarization, token tracking, and cost estimation.
Python · Google Gemini API · Rich · LLM · Conversation Memory · Token Tracking
Other Projects
Web Application
Havk App
Social media platform for connecting people
A social media application enabling users to share posts, connect with friends, and engage with content in real-time.
React · Firebase · Material-UI · React Router
Web Application
Havk Messenger
Real-time messaging application
A messenger app with real-time chat capabilities, user presence tracking, and media sharing features.
React · Firebase Realtime Database · Cloud Firestore
Mobile Application
Wallpaper App
Mobile app for discovering and exploring wallpapers
Built a mobile wallpaper application focused on browsing and discovering visually rich wallpapers through a clean and responsive user interface.
React Native · Expo · JavaScript · REST API · Mobile UI
Mobile Application
Bloggie Blogs
Mobile blogging application built with Expo
Built a mobile blogging application that provides users with a dedicated experience for discovering, reading, and interacting with blog content.
React Native · Expo · JavaScript · Mobile UI · Navigation
Mobile Application
Famous Places App
Mobile app for exploring famous places and destinations
Built a mobile application for discovering famous places through an interactive and visually focused interface designed around destination exploration.
React Native · Expo · JavaScript · Mobile UI · Navigation
Hardware
Multilevel Authenticated Security Door
IoT security system with multiple authentication layers
An Arduino-based security door system with multiple authentication methods for enhanced security.
Arduino · RFID · Fingerprint Sensor · GSM Module · C++
3D Animation
Merry Christmas Video
3D animated Christmas greeting
A festive 3D animation created using Blender showcasing modeling, texturing, and rendering skills.
Blender 2.90 · 3D Modeling · Animation · Rendering
AI Engineering
Currently building AI-powered applications using LLMs, RAG, agents, and API-driven architectures
LLM Applications
Building intelligent applications with Google Gemini for conversational AI and task automation
RAG Systems
Implementing retrieval augmented generation for context-aware document search and Q&A
AI Agents
Developing autonomous agents with LangGraph for complex workflows and decision-making
AI Backend
Building REST APIs with FastAPI for AI services, webhooks, and integration endpoints
Skills & Expertise
Technical capabilities across production support, backend development, and AI engineering
Let's Build Something Reliable
Open to opportunities in Application Reliability, Production Support, Backend Engineering, and AI Engineering