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
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.

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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