Muhammad Sajid Lakha's Work | ContraWork by Muhammad Sajid Lakha
Muhammad Sajid Lakha

Muhammad Sajid Lakha

Full-Stack Dev · Next.js, Python, AI · 15yrs experience

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Muhammad Sajid is ready for their next project!

Cover image for Engineered an enterprise-grade multi-tenant B2B
Engineered an enterprise-grade multi-tenant B2B SaaS platform and React Native mobile application built specifically for luxury bespoke tailors and Savile Row ateliers. Key Features Delivered: Multi-Tenant Architecture: Database-per-tenant isolation (saas_tenantname) with custom domain mapping. Master Cutter Workflows: Role permissions for Master Cutters, Junior Cutters, and Bench Tailors with pattern approval transitions. Interactive Posture Canvas: HTML5 canvas tool enabling cutters to draw anatomical posture anomalies on client silhouettes with version control. Paper Pattern Room Archive: Physical pattern storage tracking for rack/bay/shelf locations across 8 garment types. Cross-Platform Mobile App: Included React Native (Expo) mobile apps for iOS and Android. Security & Automation: 100% prepared statements, CSRF protection, and automated Playwright E2E verification suite.
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Cover image for QuickLeads Pro is a high-performance,
QuickLeads Pro is a high-performance, native Windows B2B lead generation, website deep-crawling, and automated email outreach desktop application built with Python and CustomTkinter (WinUI 11 dark cyberpunk layout). It parses local business directories, deep-crawls company websites using multi-threaded regex parsers, verifies business emails, extracts decision-maker phone numbers & addresses, and executes automated cold email outreach campaigns with ZERO third-party monthly API costs. 🔥 Core Features & Engine Capabilities: • Multi-Threaded Business Directory Scraper (scraper.py (http://scraper.py)): Scrapes company names, phone numbers, physical addresses, website links, and social media handles. • Deep Website Email & Phone Extractor: Crawls internal /contact, /about, and /team pages to parse hidden decision-maker emails using regex pattern matchers. • Embedded SQLite Leads Database (leads_db.py (http://db.py)): Persistent local database (leads_campaign.db) supporting 2,000+ lead records, filtering, and status tracking. • Automated Cold Email Outreach Engine (email_engine.py (http://engine.py)): Built-in SMTP email dispatcher with personalized HTML email templates, merge tags ({company_name}, {contact_person}), rate limiting, and follow-up campaign automation. • Data Exporter Engine (exporter.py (http://exporter.py)): 1-Click export to CSV, XLSX Excel workbooks, PDF summary reports, and JSON webhooks. • Executable Compilation (PyInstaller): Compiles into a single double-clickable, zero-dependency QuickLeads_Pro.exe standalone application. 🛠️ Technical Architecture & Stack: UI Framework: CustomTkinter (WinUI 11 dark cyberpunk aesthetic, Custom HSL gold/cyan themes) Core Language: Python 3.11 (Multi-threading, BeautifulSoup4, Requests, Regex) Database: SQLite3 with relational tables (leads, campaigns, email_logs) Packaging: PyInstaller with standalone hooks & custom icon assets
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Cover image for Designed and developed an autonomous
Designed and developed an autonomous AI Voice Agent system for automated inbound customer support, appointment scheduling, and outbound sales calls. 🔥 Key Capabilities & Technical Features: Real-Time Ultra-Low Latency Speech Synthesis & Voice Recognition. AI Conversation Flow Engine with Dynamic Script Context & FAQs. Automated Calendar Booking Integration (Google Calendar / Calendly). Live Call Analytics Dashboard, Sentiment Analysis, and Call Transcripts. Multi-Channel CRM Sync & Automated Follow-Up Dispatches. 🛠️ Tech Stack: Python, WebSockets, OpenAI / Anthropic APIs, ElevenLabs Speech AI, FastAPI, React, Node.js.
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Cover image for AI Voice Agent Pro —
AI Voice Agent Pro — Autonomous 24/7 B2B AI Voice Telephony & Appointment Booking SaaS platform built with Python FastAPI, SQLite CRM, PBKDF2 Password Hashing, Twilio TwiML, OpenAI, and WebSockets. Features 5 interactive dashboard views (Agent Studio, Live Call Simulator, Lead CRM, Telephony Settings, Dashboard), intent classification, automated SMS confirmations, and 100% verified unit test pass rate (6/6).
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