Vignesh
Muthukumaran

Self-hosted infrastructure control plane: deployment orchestration, Docker workload management, remote server operations, live logs, runtime monitoring and WebSocket metrics streaming across Linux hosts.

A containerised distributed key-value store built from scratch, using the Raft consensus algorithm for replication and gRPC for networking.

Resource-allocation engine for the Capacitated Vehicle Routing Problem: a mixed-integer linear programming solver (PuLP) behind a Flask REST API, benchmarked against a greedy nearest-neighbour baseline.

URL shortening service with efficient redirection and minimal overhead — no bloat, just function.

Banking REST API with Spring Boot and PostgreSQL demonstrating ACID-compliant fund transfers with @Transactional and raw JDBC.

AI reliability and regression-testing platform: benchmarks LLM outputs, measures latency and hallucination metrics, and evaluates deployments against golden datasets. FastAPI, Redis, Celery, Ollama, PostgreSQL.

100% offline decision-intelligence platform: retail sales in a PostgreSQL star schema, fast-path KPI APIs, and natural-language-to-SQL via a local LLM with a SELECT-only guard.

Customer-churn ML pipeline: automated preprocessing, feature engineering, model optimisation, explainability with SHAP, and an interactive Streamlit interface.

AI-powered legal documents and guidance platform.

Local AI video-production pipeline that automates YouTube Shorts — script to render with minimal manual intervention.

Scans any GitHub repository and generates a .agentignore file to cut context noise for AI coding agents, using a two-layer filtering pipeline.

Apartment operations platform (Node, Express, MongoDB, React) with a LangGraph multi-agent service that classifies complaints, scores priority, routes technicians and escalates to humans.

Offline-first Flutter document scanner: modular monorepo, encrypted local storage, background OCR indexing with Isar, and PDF/DOCX/XLSX export.

Movie review platform: browse films, rate them, and share opinions.

Video job management app for production teams.

A preparation companion web app.

An interactive way to learn Git.

Vulnerability assessment of OWASP Juice Shop, mapped to the OWASP Top 10 with proofs of concept and remediation steps.

API security testing against the OWASP API Top 10 — BOLA, mass assignment and JWT flaws.

Network reconnaissance and vulnerability scanning of a vulnerable lab with Nmap and Wireshark.

Linux server configuration review and hardening guide assessed against CIS Benchmarks.

Contributed to a placement portal with role-based access, PostgreSQL real-time sync and automated analytics — Flutter + Supabase.

Contributed to a transparent, GitHub-driven leaderboard and submission portal for a college cohort — no database, no logins.