Hi, I'm
Sabir

I'm a software engineer with nearly 3 years of experience as founding engineer building scalable distributed systems.

anonlegionokein/sabirpm
smrazind@gmail.comsabirpm_
Kerala, India

Top 5 things I have built.

  • 01 Distributed job scheduler with RabbitMQ processing 100K+ daily tasks.
  • 02 Real-time telephony microservice architecture processing 500K+ daily call logs.
  • 03 AI learning platform with multi-model orchestration, observability and dual-stage RAG.
  • 04 Browser-based AI video editor generating animations from natural language.
  • 05 Custom virtualized DOM softphone UI rendering 1M+ call logs efficiently.
Recent Project
Scaffold AI

Scaffold AI

An intelligent coding mentor designed to coach you through the logic, master concepts, and arrive at solutions instead of generating code.

Technologies I work with

Languages

TypeScript
Python
Rust

Backend

Node.js
Express
Django
Hono
RabbitMQ
Prisma ORM

Databases

Cassandra
PostgreSQL
Supabase
MongoDB

Frontend & UI

React
Next.js
React Native
Tailwind
Motion
Material UI
Redux

Cloud & DevOps

AWS
Docker
Linux
Nginx
Git

AI & Libraries

LangChain
LangSmith
Vercel AI SDK
Cohere
WebSockets
SIP.js

Web3

Solana
Web3.js
Jupiter

Projects

Scaffold AI

Scaffold AISocratic Anti-Copilot

Live

An intelligent coding mentor designed to coach you through the logic, master concepts, and arrive at solutions instead of generating code.

Langsmith
pgvector
Vercel AI SDK
PostgreSQL
Next.js
TypeScript
Prisma
Taskforge

TaskforgeDistributed Job Scheduler

SourceLive

A production-grade, distributed job scheduler built to demonstrate resilient backend systems architecture and real-time dashboard tracking.

Node.js
Express
RabbitMQ
AWS
Nginx
TypeScript
PostgreSQL
Docker
Angle

AngleAI Animation Studio

SourceLive

A full-stack AI application that generates math animations from natural language prompts, with a browser-based video editor.

Next.js
TypeScript
Python
FFmpeg
Manim
Supabase
Tailwind CSS
🚰

ValveLLM Grammar Engine

Source

A high-performance, headless HTTP proxy that enforces strict grammar and JSON schema constraints on streaming LLM responses, featuring real-time atomic validation and autonomous self-healing.

Rust
Tokio
Axum
Crypto Gate

Crypto Gate

SourceLive

A crypto payment gateway enabling merchants to accept any SPL token with automatic USDC conversion via Jupiter aggregator on Solana.

Solana
Web3.js
Jupiter
Next.js
TypeScript
PostgreSQL
Docker
Tailwind CSS
AskVerse

AskVerse

SourceLive

An AI chat application using RAG with LangChain for document chunking, embedding, and similarity search.

LangChain
Vercel AI SDK
Next.js
TypeScript
Tailwind CSS
Force Top Bar

Force Top Bar

SourceLive

Keep the top bar visible even in fullscreen mode. Useful for keeping track of time while using immersive apps.

JavaScript
GNOME Shell
StackBlog

StackBlog

Source

A React-based blog app powered by Appwrite, featuring rich text editing, image uploads, post management, and user authentication.

React
TypeScript
Tailwind CSS
Appwrite
Reviewboxd

Reviewboxd

Source

A movie review app using the TMDb API, allowing users to browse movies, search titles, read and contribute reviews.

JavaScript
HTML
CSS
Node.js
Express
MongoDB
Todo Lister

Todo Lister

Source

Console Todo App in C++ that generates a random ID for each task, allowing users to add and mark tasks as completed.

C++
Blockbuster

BlockbusterThe Movie Store

SourceLive

Landing page for the Blockbuster Movie Store website if they were still around today.

HTML
CSS
JavaScript
Greeting on Panel

Greeting on Panel

Source

A simple and efficient extension to display greetings based on time of the day on the GNOME desktop environment top panel.

JavaScript
GNOME Shell
Loop Texts on Panel

Loop Texts on Panel

Source

A customizable GNOME extension that displays any text on the top panel, with support for looping messages.

JavaScript
GNOME Shell

Experience

Bistux Solutions Pvt. Ltd.

India - Hybrid

  1. Backend & Distributed Systems

    • Architected multi-instance real-time telephony services (SIP.js, FreeSWITCH) across 9 microservices, with concurrency-safe round-robin and sticky-agent routing via Cassandra LWTs to fulfill hard enterprise requirements that unblocked initial production deployments.
    • Built a shard-based distributed job scheduler across 3 service instances (10 shards per instance) processing 10K+ daily tasks. Enforced epoch fencing for zero split-brain incidents, and tuned gc_grace_seconds to resolve tombstone bloat, dropping Cassandra read timeouts to zero under heavy workloads.
    • Built a real-time notification engine via RabbitMQ and WebSockets processing 500K+ events daily. Sustained throughputs of 500 messages/sec with sub-50ms latency for live call state and multi-channel webhook delivery.

    DevOps & Ownership

    • Took unsolicited ownership of a long-deferred data reliability issue eroding stakeholder trust in exported call reports. Redesigned call logging to append-only and replaced increment-decrement counters with increment-only logic, achieving 100% call state accuracy and cutting latency by 80% without breaking schema changes.
    • Owned the live migration of 20+ Cassandra tables, several exceeding 15M rows, from DataStax managed cloud to self-hosted Cassandra. Designed a fault-tolerant Node.js automation script that skipped failing tables instead of crashing, enabling targeted recovery without restarting.
    • Orchestrated a Docker Swarm environment for 19 microservices. Built tag-driven CI pipelines for automated image builds, eliminating manual overhead and enabling 8+ zero-downtime weekly production releases.