Harsha Vardhan Kanna | Full-Stack Systems & Cloud Engineer

01 // The Narrative

My Journey & Engineering Philosophy

How curiosity for Linux fundamentals evolved into building production-grade web systems, machine learning prototypes, and dedicated cloud environments.

Genesis // Systems & The Linux Kernel

Unlocking the Power of POSIX & Operating Systems

My engineering trajectory began by peeling back the abstractions of modern computing. Rather than treating computers as black boxes, I immersed myself in Linux internals: process trees, signals, virtual memory, POSIX permissions, disk partitioning, and bash scripting. This passion led me to write and curate the Ultimate Linux Guide, breaking down systems architecture for developers worldwide.

Linux Kernel Bash / Shell SysAdmin Networking (TCP/IP) Storage & Inodes

Exploration // Applied AI & Computer Vision

Intelligent Perception: Robotics & Facial Recognition

Fascinated by real-time computer vision, I bridged software with physical interaction. I architected an Autonomous Shopping Cart Robot powered by OpenPose human tracking and Gated Recurrent Units (GRU) to anticipate customer trajectory and navigate dynamically. Concurrently, I engineered real-time Python & OpenCV facial landmark biometric identification pipelines.

Computer Vision OpenCV GRU Neural Networks OpenPose Python

Expansion // Full-Stack Craftsmanship

Architecting Fluid Interfaces & Real-Time Media

Translating complex backend capabilities into fluid user experiences required mastering modern web engines. I transitioned into full-stack architecture with Next.js (App Router), React, and Zustand, creating bespoke liquid-glass UI paradigms with Snell optical refraction physics, Web Audio API procedural soundscape synthesizers (generating realistic rain and binaural brainwaves algorithmically), and real-time WebSockets via Pusher.

Next.js 14 React Web Audio API WebSockets / Pusher Tailwind CSS

Production // Dedicated Cloud Infrastructure

Operating 24/7 at Scale: The Ritual Platform

Rejecting ephemeral serverless constraints, I built and deployed Ritual (ritual.food) on a dedicated 24/7 Oracle Cloud Infrastructure (OCI Always Free) Linux VM (Ubuntu on Ampere A1 ARM64). I engineered persistent Node 22 background processes, automated Let's Encrypt TLS with Caddy 2, Docker Compose microservices, MongoDB Atlas connection pooling, and resilient zero-downtime container swaps.

Dedicated OCI VM Ubuntu ARM64 Caddy 2 Reverse Proxy Docker Compose MongoDB Atlas Zero-Downtime Deploy

Current Horizon // Multimodal AI & Autonomous Agents

Building Intelligent Systems of Tomorrow

Today, I focus on integrating generative models (Google Gemini API), autonomous agent tool-calling pipelines, structured document extraction, and local-first data resilience. My goal is to build software that is blazingly fast, private, delightful to use, and architecturally rock-solid.

Google Gemini API Agent Tool-Calling Local-First Privacy First

02 // Engineering Work

Featured Projects & Live Platforms

Production platforms, open-source repositories, and machine learning prototypes built with focus on craftsmanship and reliability.

⭐ Flagship Production App

Ritual — Habit, Task & Media Ecosystem

A full-stack daily accountability operating system featuring interactive habit heatmaps, gap analysis day planning, Markdown voice notes, real-time partner nudges, and procedural ambient audio. Deployed 24/7 on a dedicated OCI Ampere A1 ARM64 VM.

Next.js 14 Dedicated OCI VM Caddy TLS MongoDB Web Audio Pusher

Live Site (ritual.food) ↗ GitHub Repo

📖 Open Source Guide

Ultimate Linux Guide

A comprehensive sysadmin and DevOps handbook designed to help engineers master Linux from ground zero: kernel concepts, process hierarchies, permissions, file systems, disk management, and network troubleshooting.

Linux SysAdmin DevOps Bash System Architecture

GitHub Repository ↗

🤖 Generative AI

Next.js Gemini AI Platform

Production-grade Next.js integration with the Google Gemini API, featuring streaming multimodal reasoning, prompt orchestration, structured JSON output extraction, and intelligent task extraction from freeform text.

Google Gemini API Next.js TypeScript Streaming AI

GitHub Repository ↗

🛒 Robotics & ML

Autonomous Shopping Cart Robot

An intelligent assistance robot capable of tracking human customers in dynamic store environments. Utilizes OpenPose for human skeletal pose estimation and Gated Recurrent Units (GRU) for real-time trajectory anticipation.

Python OpenPose GRU Neural Nets Robotics

Research Context ↗

👁️ Computer Vision

Real-Time Facial Recognition Suite

A computer vision pipeline utilizing OpenCV and deep learning feature encodings to detect, align, and recognize human faces in live webcam streams with minimal latency and high accuracy.

OpenCV Python Biometrics GUI

GitHub Profile ↗

🎵 Audio DSP Engine

Procedural Web Audio Soundscape Engine

Zero-asset algorithmic audio synthesizer generating multi-layer natural soundscapes (ocean waves, forest wind, crackling fireplace, 10Hz binaural alpha waves) purely using the Web Audio API without downloading external audio files.

Web Audio API DSP Synthesis JavaScript Ritual Core

Experience on Ritual ↗

03 // Credentials & Experience

Resume & Professional Record

Professional experience, technical core competencies, and academic background. Click below to print or download a clean ATS copy.

Creator & Lead Systems Engineer

Ritual Ecosystem (ritual.food)

2024 – PRESENT

Architected and launched full-stack production application serving daily active users on a dedicated 24/7 Oracle Cloud Infrastructure (OCI Always Free) Ubuntu ARM64 compute instance.
Engineered reverse proxy and automated TLS termination via Caddy 2, persistent warm MongoDB Atlas connection pooling, and Docker Compose deployment pipelines with zero-downtime container swaps.
Implemented real-time bi-directional messaging and habit accountability nudges with Pusher Channels, Web Audio API procedural sound synthesis, and VAPID Web Push notifications.
Enforced strict rate-limiting, timing-safe cryptographic password verification (Scrypt/PBKDF2), and user-isolated multi-tenant data governance.

Technical Author & Systems Researcher

Ultimate Linux & DevOps Architecture Guide

2023 – PRESENT

Authored comprehensive open-source documentation covering core Linux operating system concepts: kernel vs userspace, process management, memory paging, file permissions, and TCP/IP networking.
Curated practical system administration reference guides for storage partitioning, systemd daemon management, and high-performance server tuning.

Machine Learning & Computer Vision Developer

Autonomous Robotics & Computer Vision Research

2022 – 2023

Developed an Autonomous Shopping Cart Robot prototype integrating OpenPose skeletal tracking and Gated Recurrent Units (GRU) for real-time human movement anticipation.
Engineered real-time OpenCV facial detection and biometric landmark alignment tools in Python with optimized frame processing throughput.

Bachelor of Technology / Engineering in Computer Science & Engineering

Focused on Systems Architecture, Web Platforms & Machine Learning

Coursework & Core Focus: Operating Systems, Distributed Systems, Database Management Systems (DBMS), Data Structures & Algorithms, Computer Networks, and Artificial Intelligence.

04 // Core Competencies

Technical Skills & Tooling Matrix

Technologies, runtimes, protocols, and architectural patterns I work with daily.

☁️ Cloud & DevOps

Oracle Cloud (OCI) Ubuntu Linux (ARM64/AMD) Docker & Compose Caddy 2 & TLS systemd & Crons NGINX Bash Scripting CI/CD Pipelines

💻 Frontend & Client

Next.js 14 (App Router) React 18 / 19 TypeScript JavaScript (ESNext) Tailwind CSS Zustand Web Audio API Responsive Design

⚙️ Backend & Data

Node.js 22 (LTS) Express MongoDB Atlas RESTful APIs Pusher (WebSockets) Cryptographic Auth Rate Limiting JSON / Local DB

🧠 AI & Machine Learning

Google Gemini API OpenCV OpenPose Recurrent Networks (GRU) Python Multimodal Workflows Task Extraction

05 // Connect

Get in Touch

Interested in building something ambitious together or discussing engineering roles? Drop a message below.

GitHub

github.com/Harshakanna8733

Direct Email

harshagoud4988@gmail.com

Personal Domain

harshavardhank.com

🔒 Privacy Assurance: Personal contact channels are strictly limited to direct professional email and public repository links. Sensitive phone numbers, residential locations, and private telemetry are intentionally excluded.

Harsha Vardhan Kanna Full-Stack Systems & Cloud Engineer