Vishwanathan R

Vishwanathan R

Building products end to end, from the interface to the server.

RHCSA
CCNA
RHCE
Knight's tour · 5×5

About

I'm a developer, and building things is my favourite hobby. I love making web products end to end, from the interface people use to the servers and networks underneath, simply because it's fun.

My foundation is in Java, and I build for the web with JavaScript, Next.js and Node.js. I'm a Red Hat Certified System Administrator with a strong interest in security: how systems get attacked, and how to build them so they hold up.

I work fluently with AI across my whole workflow, using it to research, prototype and ship faster while keeping the quality bar high.

Outside work: chess and anime.

Projects

Neemberry Store

A complete online store for a new wellness brand, built from scratch: checkout and payments, sign-in with phone verification, a live support chat and admin tools.

Next.js · MedusaJS · TypeScript · PostgreSQL · Docker
Private repository

Mock Interview AI

A voice interviewer that listens, adapts its next question and gives feedback. Tested over 50+ sessions with a 95% completion rate.

Next.js · Node.js · TypeScript · Firebase · Vapi
GitHub

AccrediTech

An AI-powered portal that automates college accreditation: OCR document checks, compliance validation, evaluator matching and application tracking.

React · TypeScript · Node.js · Supabase · OCR
GitHub

Network Intrusion Detection

A live network monitor that captures traffic and flags DDoS and unusual patterns the moment they appear, with alerts and simulated attacks for testing.

Scapy · LightGBM · Isolation Forest · TCP/IP
GitHub

Payment Fraud Detection

Real-time scoring that separates genuine payments from suspicious ones, with a dashboard for live and batch checks.

XGBoost · CatBoost · Streamlit
GitHub

Privacy-Preserving Medical Records

Hides encrypted patient records inside CT scans using reversible watermarking, with role-based access for doctors and patients.

Deep learning · Cryptography · Streamlit
GitHub

Skills

Core

  • Java · C · C++ · SQLMy strongest languages for problem solving and data work
  • JavaScript · TypeScriptFor web front ends and back ends
  • Next.js · ReactStorefronts, dashboards and interactive apps
  • Node.js · MedusaJSCommerce backends, APIs, payments and sign-in
  • Linux (RHEL)RHCSA certified: users, services, SELinux, shell scripting
  • AI-assisted developmentClaude and Cursor for research, prototyping and faster shipping
  • Git · Postman · CloudflareEveryday tools for shipping and testing

Security

  • Network securityPacket analysis, traffic monitoring and intrusion detection
  • Linux hardeningSELinux, firewalls, permissions and access control
  • Secure web appsSafe sign-in, verification and handling of payment flows

Comfortable with

  • PostgreSQL · DockerDatabases and containers, local and production
  • Firebase · SupabaseAuth, storage and realtime data
  • NetworkingTCP/IP, routing and switching, VLANs, DNS, DHCP

Foundations

  • Data structures · AlgorithmsThe basics behind fast, clean code
  • Operating systems · NetworksHow machines and traffic really work underneath
  • Databases · OOPRelational design and object-oriented thinking

Journey

2026Oct — Present

NeemberryAssociate Product Engineer

2024Oct — Dec

Rainberry Inc. (formerly BitTorrent)Software Engineering Intern

2022— 2026

B.Tech, Information TechnologySri Krishna College of Engineering and Technology, Coimbatore

Research

AI-Based Mock Interview Platform

Mar 2026ICA6NT 2026 · IEEE ComSocPublished
Apr 2026ICRCET 2026 · IFERP AcademyAlso presented

ML & AI explorations

Independent experiments in adversarial machine learning, evolutionary algorithms, reinforcement learning, multi-agent systems and applied NLP.

Self-directed
GitHub

Let's talk.

vishwanathanirv@gmail.com