Sheraz Zafar

Pakistan sherazzafar148@gmail.com +92 348 2241520 github.com/sheraz755 linkedin.com/in/sheraz-zafar-3a166321b

Professional Summary

Innovative Full Stack Developer with 3.5+ years of expertise in building AI-powered SaaS platforms and real-time communication systems. Proven track record of delivering scalable applications with 99.9% uptime, including an AI voice assistant serving 50,000+ users, boosting client revenue by 30%. Expert in MERN stack, AI integration, and cloud architecture, consistently delivering high-impact solutions through technical excellence and cross-functional collaboration.

Professional Experience

Voho LtdRemote | AI & Voice Agent Systems
Full Stack DeveloperOct 2023 – Apr 2025

Led development of AI-powered voice assistant platforms, achieving 40% faster response times and 99.9% uptime.

  • Architected scalable Next.js and MongoDB backend, handling 10,000+ users with 99.9% uptime, delivered 2 weeks early
  • Integrated Vapi for AI-driven voice interactions and OpenAI for NLP, serving 50,000+ users, reducing call processing time by 35%
  • Built AI-powered knowledge base system using OpenAI and PineconeDB, improving search accuracy by 60% and reducing support queries by 45%
Playeon OTT PlatformHybrid | Streaming & Subscription Platform
Full Stack Developer2022 – 2023

Spearheaded frontend development of OTT platform, increasing user engagement by 60% and reducing churn by 25%.

  • Led team of 5 developers and designers to deliver analytics dashboard 10 days early, reducing processing time by 60%
  • Optimized video streaming latency by 40% using HLS and custom player integrations, improving user retention by 35%
  • Built secure authentication system with JWT and OAuth2, reducing security incidents by 90% for 100,000+ subscribers
WebRTC Audio ProjectsOn-site | Real-time Communication
Backend Developer2021 – 2022

Engineered WebRTC-based audio platform supporting 1000+ concurrent users with <100ms latency.

  • Designed scalable media pipeline handling 500+ concurrent RTSP streams with 99.9% uptime for enterprise clients
  • Implemented AI-powered audio detection using TensorFlow.js, achieving 95% accuracy in real-time processing
  • Mentored 3 junior developers in WebRTC implementation, improving team productivity by 25%

Selected Projects

WhatsApp AutoResponder AI

Developed AI-powered WhatsApp bot using Meta APIs and OpenAI, automating 80% of queries with 95% accuracy

Next.jsOpenAIMeta APIn8nMongoDB

Faceless Video Generator

Built automated video creation platform using 11 Labs and Pexels API, reducing content creation time by 70%

ReactFFmpegElevenLabsPexels APINode.js

Education

Bachelor of Science in Computer SciencePreston University
2016 – 2020
Final Year Project: Built AI-Powered Video Analytics Platform with OpenCV and TensorFlow, achieving 90% accuracy. Awarded Best Project.

Certifications

AWS Certified Solutions Architect

Amazon Web Services

Dec 2023

Professional Scrum Master I

Scrum.org

Sep 2023

Docker & Kubernetes

Linux Foundation

Mar 2023

Machine Learning Specialization

Stanford Online

Jan 2023

React Advanced Concepts

Frontend Masters

Nov 2022

Work Methodology

Agile Practices

  • Scrum
  • Kanban
  • Sprint Planning
  • Daily Standups

Collaboration Tools

  • Jira
  • Confluence
  • GitHub Projects
  • Slack

Development Practices

  • TDD
  • CI/CD
  • Code Review
  • Pair Programming

Technical Skills

Frontend

React.jsNext.jsTypeScriptTailwind CSSRedux Toolkit

Backend

Node.jsExpressMongoDBRedisREST APIsGraphQL

DevOps & Tools

DockerAWS EC2NginxGitHub ActionsPM2JiraSlackPostmanJest

AI & Integration

OpenAILangchainPineconeElevenLabs

Soft Skills

Team Leadership & Mentorship

Cross-functional Collaboration

Problem Solving & Critical Thinking

Effective Communication

Project Management

Continuous Learning