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G26karthik/README.md

G. Karthik Koundinya

Typing SVG

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About

I'm an early-career AI & backend engineer who builds close to real systems — search pipelines, agentic workflows, and scalable services that need to be reliable, efficient, and explainable.

  • 🛰️ Currently shipping a production social platform solo at a stealth startup (Next.js + Supabase + AWS)
  • 🔬 Interested in: retrieval & ranking systems · agentic AI orchestration · backend performance at scale
  • 🎯 Open to: AI Engineer / Backend Engineer / Software Engineer roles

Competitive Programming

Platform Rating Rank
🍴 CodeChef 2483 — 6★ #7 in India · #85 Globally
LeetCode 2591 — Guardian Top 0.13% Globally
🔵 Codeforces 2225 Master

LeetCode CodeChef Codeforces


Tech Stack

Languages

Python TypeScript JavaScript Java C++ SQL

AI / ML

PyTorch HuggingFace LangChain FAISS Gemini OpenCV

Backend & Full Stack

FastAPI Next.js Node.js React Flask Supabase PostgreSQL MongoDB

Cloud & DevOps

AWS GCP Docker GitHub Actions


Experience

Full Stack Engineering Intern — Stealth Startup  ·  Jan 2026 – Present

Solo-built a production social platform from scratch. Reduced DB calls ~50% and API payload ~80% via request path optimization on Next.js + Supabase. Shipped real-time auth, Supabase Realtime subscriptions, and a zero-downtime CI/CD pipeline on AWS EC2 + PM2.

AI & Frontend Development Intern — Edunet Foundation  ·  Aug – Oct 2025

Built a Whisper + T5 + DistilBART pipeline converting 60+ min lectures to structured notes, flashcards, and MCQs — cutting inference time ~80% via GPU caching. Also shipped a responsive React portfolio with lazy loading.

Web Development & SEO Intern — Badakarobar  ·  Mar – Jun 2025

Improved Lighthouse scores ~45% and automated sitemap generation entirely via Python scripting.


Featured Projects

🛰️ SupplySentinel

Autonomous Supply Chain Risk Monitor

Live · GitHub

3-agent system (Watchman → Analyst → Dispatcher) for 24/7 risk monitoring. Self-correcting confidence loop expands evidence scope when certainty is low. Persistent deduplication suppresses duplicate alerts. Deployed on Cloud Run with sub-3s cold start.

Python Gemini 2.5 Flash Google Cloud Run Streamlit

🔍 Lumina Search

Hybrid RAG Engine with Caching

Live · GitHub

FAISS (semantic) + BM25 (keyword) hybrid retrieval. SQLite content-hash caching cuts indexing latency ~90% on repeated runs. Non-blocking AsyncIO FastAPI backend. Transparent per-result Vector vs. Keyword score breakdowns.

Python FastAPI FAISS BM25 SQLite AsyncIO

🩺 AI Dermatology Assistant

Skin Lesion Classification with XAI

GitHub

EfficientNet-B0 on HAM10000 — 81% val accuracy, 0.67 macro-F1 across 7 imbalanced classes. AMP + Albumentations cut GPU time 2.8× and memory 40%. Grad-CAM visualizations for clinical interpretability at <50ms/image.

PyTorch EfficientNet Grad-CAM Albumentations Streamlit

🎓 Lost & Found Platform

Full-Stack Campus Social Platform

Live · GitHub

Deployed and used by 200+ students across campus. Modular Express controllers + indexed MongoDB queries improved backend efficiency ~35%. JWT auth, Cloudinary CDN, Tailwind UI with real-time status updates.

MongoDB Express React Node.js Cloudinary Tailwind


Open Source

Active contributor to 9 production-grade repos300k+ combined ⭐

Repo Contribution
google/adk-python Fixed multilingual LLM-as-a-Judge evaluation for Hindi, Chinese, Arabic (PR #3503)
mem0ai/mem0 Azure AI Search vector store integration via factory pattern (PR #3549)
HackerRank Hiring Agent Patched memory leak in PDF processing; fixed Windows UTF-8 encoding failures (PR #133, #129)
pandas 43k ⭐ 3 merged PRs — Ruff B905 zip compliance + PyArrow DateTime regression tests
Matplotlib 20k ⭐ Overhauled TwoSlopeNorm colorbar docs with practical examples (PR #30639)
TheAlgorithms/Python 208k ⭐ Hopcroft-Karp bipartite matching O(E√V) (PR #13233)
SQLFluff 8k ⭐ Extended SQL parser for PostgreSQL OPERATOR() syntax (PR #7163)

GitHub Stats


Always open to interesting problems — reach out.

Profile Views

Pinned Loading

  1. AI-Interview-Assistant AI-Interview-Assistant Public

    JavaScript 1

  2. Lost-and-Found Lost-and-Found Public

    A Mern Stack Lost&Found Platform for Colleges

    JavaScript 1

  3. AI-Network-Traffic-Shaper AI-Network-Traffic-Shaper Public

    Python

  4. Lumina-Search Lumina-Search Public

    Python

  5. SupplySentinel SupplySentinel Public

    Python

  6. voice voice Public

    Python