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Hi, I'm Sam Joe

I craft

with precision and purpose.


Blog

The Computer Science Career We Prepared For Is Changing

AI didn't just change how we code. It quietly changed how companies hire, what skills matter, and who gets left behind.

2026-06-22
How PostHog Handles Millions of Events: What I Learned Building a Mini-Replica From Scratch

A deep dive into PostHog's event ingestion pipeline — Kafka, ClickHouse, and the Luhn algorithm.

2026-06-01
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Designed and developed by Sam Joe

© 2026 All rights reserved.

Proof of Work

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Buffer

A command-driven workspace where notes, PDFs, and deep links live side by side. Terminal-first editor with a built-in PDF viewer, deep linking to specific pages, local-first speed via IndexedDB, and real-time collaboration built for people who think in commands, not clicks.

Next.jsTypeScriptSupabaseIndexedDBPDF.jsTailwind CSS

SightHog

Open-source, self-hosted browser telemetry and session replay SDK. Drop-in SDK captures rrweb replay, rage-clicks, Web Vitals, and network logs, shipping to your own Kafka, Postgres, and ClickHouse. ~6 kB gzipped, privacy-first masking, no per-seat SaaS fees.

TypeScriptNext.jsGoKafkaPostgreSQLClickHouserrwebDocker
Wash.io logo

Wash.io

Wash.io is a convenient app that allows users to book time slots for using washing machines on their floor. Features include real-time availability tracking, notifications for cycle completion, and a conflict resolution system for scheduling overlaps.

FlutterSupabaseDartFirebase AuthREST API
DragApp logo

DragApp

A bilingual (English and Malayalam) platform addressing substance abuse among youth in Kerala. Built around Prevention, Cure, and Control frameworks, it features an AI-powered conversational assistant, anonymous reporting with location tracking, community resources, and a secure dashboard for law enforcement with real-time data visualization.

React NativeNext.jsSupabaseFirebaseHeadless CMSLocation APIsJWT AuthExpo

About Me

Hey, I’m Sam Joe Chalissery, a 20-year-old developer who writes code like it’s second nature. I started off building Discord bots during lockdown, and these days I’m deep into full-stack development, automation, and exploring the world of Web3 and blockchain. I’m currently studying Computer Science, but most of what I know comes from diving into real projects and learning by building. I love taking bold ideas and turning them into software that actually solves problems. Got something cool in mind? Let’s build it.

Experience

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Junior AI Developer

Statts

Canberra, Australia · Remote

Jul 2025 - Present
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Intern

National Technical Research Organisation

New Delhi, India · On site

May 2026 - Jul 2026
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Full Stack Developer

aiRender

Bangalore, India · Remote

Jul 2025 - Jan 2026

Highlights

Recent Highlights

New Article

How PostHog Handles Millions of Events

Wrote about building SightHog — a mini replica of PostHog's ingestion pipeline with Kafka, ClickHouse, and rrweb replay — and what I learned about scaling event analytics from scratch.
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Users

and counting

By the Numbers

0Projects Built
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0Open Source Contributions
0Technologies Mastered

GitHub Contributions

Skills

JavaScriptTypeScriptNext.jsReactPythonC++MongoDBPostgreSQLSupabaseMySQLDockerAWSReduxTailwind CSSNode.jsExpress.jsGit

Education

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B.Tech in Computer Science and Engineering

Indian Institute of Information Technology, Kottayam

2024 - 2028

Get in Touch

Have a question or want to work together? Feel free to reach out!