Senior Backend Engineer

Muhammed
Sabeen

Technical Lead at Voicenotes

6+ years engineering scalable backend systems. Security-first mindset. Played a key role in achieving SOC 2 Type II compliance. Currently leading backend architecture for Voicenotes, an AI-powered voice platform.

Kerala, India

Building systems
that scale & endure

I'm a Senior Backend Engineer with 6+ years of experience leading scalable systems and driving security-first architecture in production environments. I own end-to-end backend systems, lead cross-functional engineering efforts, and work closely with third-party AI and infrastructure providers.

Currently at Buy Me a Coffee, I serve as Technical Lead for Voicenotes — an AI-powered voice platform — where I've owned the backend architecture from early product stages, ensuring scalability and stability under growth.

Location Thrissur, Kerala, India
6+
Years of Experience
12+
Open Source Projects
25+
GitHub Stars
2000+
Chrome Extension Users
Problems Solved

Products I've helped build

Leading backend engineering for platform used by millions of people worldwide.

Career timeline

Feb 2023 – Present
Senior Backend Engineer / Technical Lead
Buy Me a Coffee · Voicenotes

Currently leading backend architecture for Voicenotes (AI voice platform). Previously maintained core systems for Buy Me a Coffee.

Aug 2021 – Feb 2023
Software Developer
XGEN Business Systems

Full-stack development of Near Video Conference, Chat, Whiteboard, and Dashboard products using React.js, Node.js, PHP, and Electron.js.

Sep 2019 – Aug 2021
Full Stack Developer & Penetration Tester
Infiyo Technologies Pvt. Ltd.

Full-stack development across various projects with a dual role as Penetration Tester, ensuring robust security across all systems.

Sep 2016 – Mar 2017
Junior Android Developer
Infiyo Technologies Pvt. Ltd.

Developed and designed Android applications.

2017 – 2019
M.Tech — Computer Science & Engineering
GEC Thrissur · APJ Abdul Kalam Technological University

Thesis: Benign-MALware (B-MAL) Identification and Classification Using Feature Extraction Techniques. Focused on Cyber Security.

2017 – 2019
MBA — IT & Systems
ICFAI University (Distant)
2012 – 2016
B.Tech — Information Technology
CUIET · University of Calicut

Technical expertise

Backend Development
Node.js PHP Laravel Express.js GraphQL RESTful APIs
Frontend Development
React.js Vue.js JavaScript ES6+ HTML / CSS Tailwind CSS Bootstrap
Programming Languages
PHP JavaScript Python Swift Bash / Shell
Database & API
MySQL PostgreSQL MongoDB Firebase RESTful APIs
Cloud & DevOps
AWS EC2 AWS S3 AWS RDS AWS Lambda Docker CI/CD
Security Tools
Burp Suite Nmap Wireshark SOC 2 Type II Pen Testing
Search Technology
Meilisearch Elasticsearch Vectorsearch
Desktop Applications
Electron.js Swift (macOS)
Analytics & Tracking
Google Tag Manager Google Ads Server-Side Tagging Meta Conversion Tracking Conversion Tracking
Version Control
Git GitHub Bitbucket

Side projects & open source

Stanza

Privacy-first local AI macOS app. Built with offline-first architecture, BYOK-based multi-provider integrations (OpenAI, Anthropic), and zero data exposure by default through on-device processing.

Free Grammarly

A free Chrome extension to fix the grammar of your sentences using AI for FREE. Privacy-focused with BYOK architecture and client-side data handling.

Chrome Audio Recorder

A Chrome extension that simultaneously records both tab audio and microphone input, with advanced audio processing capabilities for real-world content workflows.

Chrome Video Recorder

A Chrome extension that simultaneously records tab video, audio and microphone input, with advanced video processing capabilities for screen recording workflows.

Color Swap

A simple and intuitive browser extension that allows you to customize the appearance of web pages by changing their background and text colors.

Voicenotes Privacy Tool

A Chrome extension to hide the contents of your Voicenotes for privacy — useful when screen sharing or recording demos.

Web Scanner

Web Security Scanner that crawls sites and detects OWASP Top 10 vulnerabilities with queue-driven async scanning and detailed reports.

Scroll to Top Extension

A lightweight Chrome extension that adds a smooth scroll-to-top button on any webpage, improving navigation on long pages.

Enable Disabled Buttons

A Chrome extension that enables disabled form buttons and inputs on any webpage — handy for testing and debugging web forms.

Review Alerts

A monitoring tool that tracks and aggregates reviews from multiple platforms including Reddit, Google Play Store, and Trustpilot — keeping you on top of user feedback.

Git Branch Cleaner

A VS Code extension to easily clean up local and remote Git branches. Helps developers keep their repositories tidy with a simple, intuitive interface directly inside VS Code.

Ear Check

Ear Check is a quick, no-install tool to test your earphones and headphones — play audio through left, right, or center channels to verify stereo separation and channel balance. Fully installable as a PWA, it works offline and runs entirely in your browser using the Web Audio API.

Project Time Tracker

It enables users to create and manage projects, log time entries, and view productivity insights through dashboard summaries, calendar views, and trend reports.

Project Tracker Extension

A Chrome Extension that allows users to log time against their projects directly from the browser.

View all projects on github

Let's connect

I'm always open to interesting conversations, collaboration opportunities, or just a good chat about technology and engineering.

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