Hamdan Amir's Work | ContraWork by Hamdan Amir
Hamdan Amir

Hamdan Amir

AI Automation Engineer |AI Agents, Voice AI & CRM Automation

ProcureGuard AI | Procurement Automation System ProcureGuard AI is an independent software engineering project designed to improve procurement data accuracy, invoice validation, supplier pricing, and operational accountability. THE CHALLENGE Procurement operations involve complex supplier records, purchase orders, invoices, and pricing rules. Inconsistent data and missing validation controls can create costly errors. MY SOLUTION I designed and implemented a secure, multi-tenant procurement database foundation using Supabase and PostgreSQL. KEY FEATURES Supplier, product, purchase order, and invoice data models Invoice validation with calculated line totals Price and quantity constraints to reject invalid records Duplicate-record and overlapping supplier-price prevention Organization-level relational integrity Database structures for anomalies, approvals, and audit logs TECHNOLOGY STACK Supabase, PostgreSQL, SQL, and relational database design. TESTING & RESULTS Tested critical database constraints, including duplicate prevention, negative-price rejection, and supplier-price overlap validation. PROJECT STATUS Independent development project. Core database design and validation tested; advanced automation features remain in development.
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Full-Stack Software Engineering | Web, Mobile & AI Automation From idea to production-ready software — I build modern digital solutions tailored to your business. I'm a Software Engineer with 2+ years of development experience, specializing in full-stack web applications, cross-platform mobile apps, backend systems, and intelligent business automation. I help startups, entrepreneurs, and businesses design, develop, integrate, and improve software that solves real problems. My Services 1. Full-Stack Web Development Responsive websites and modern web applications React.js, Next.js, TypeScript, and Tailwind CSS Admin dashboards, customer portals, and business platforms API integrations and performance optimization 2. Mobile App Development Cross-platform Android and iOS applications Flutter and Dart development Custom UI/UX implementation Firebase integration and backend connectivity 3. Backend & API Development Node.js and Express.js applications REST API development and third-party integrations Authentication, authorization, and database design PostgreSQL, Supabase, and MongoDB 4. AI Agents & Business Automation Custom n8n automation workflows AI agents, chatbots, and voice assistants OpenAI and Retell AI integrations CRM workflows, lead automation, and API-based processes 5. SaaS & Custom Business Software SaaS platforms and MVP development CRM systems and internal business tools Multi-tenant architecture and database design Scalable application architecture My Development Process Discovery → Planning → Development → Testing → Delivery I focus on clean code, responsive interfaces, secure integrations, maintainable architecture, and clear communication throughout the project. Why Work With Me? Full-stack engineering across web, mobile, and automation Experience with modern JavaScript and Flutter technologies API, database, and backend integration expertise Professional communication and structured delivery Solutions built around your actual requirements Let's Build Something Valuable Whether you need a professional website, mobile application, SaaS MVP, custom backend, or AI automation solution, I can help turn your requirements into working software. Send me a message to discuss your project, scope, and timeline.
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Cover image for ProcureGuard AI — Intelligent Procurement
ProcureGuard AI — Intelligent Procurement & Invoice Automation Enterprise-focused procurement automation and financial validation system. ProcureGuard AI is an independent software engineering project designed to help businesses improve procurement data accuracy, identify invoice discrepancies, and establish reliable approval and audit processes. The Business Problem Organizations often manage supplier records, purchase orders, invoices, and approval processes across disconnected systems. Manual verification can make it difficult to identify pricing discrepancies, duplicate records, inconsistent quantities, and other procurement anomalies. My Solution I designed and implemented a structured procurement database foundation with secure tenant isolation, relational integrity, and validation rules. The system architecture supports automated procurement checks, anomaly tracking, approval management, and auditability. Key Features and Capabilities Multi-tenant procurement data architecture Supplier and product management Purchase order and invoice data models Pricing and quantity validation Supplier agreement and price-history controls Procurement anomaly tracking Approval and audit-log structures Row-Level Security (RLS) Database constraints and integrity testing Workflow automation architecture Technology Stack PostgreSQL, Supabase, SQL, n8n, REST APIs, and workflow automation. My Role AI Automation Engineer & Backend Systems Developer Project Status Independent development and validation project. Database security, relationships, and integrity rules have been tested. Production deployment and measured customer outcomes are not claimed. Business Applications Procurement teams, wholesale distributors, inventory-driven businesses, finance operations, and organizations seeking custom procurement validation systems. Interested in automating procurement or financial workflows? Let's discuss your business requirements.
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Cover image for Introducing VoiceOps AI — Intelligent
Introducing VoiceOps AI — Intelligent AI Receptionist & Appointment Automation 🚀 An AI-powered automation project designed to help appointment-based businesses streamline customer inquiries and scheduling. Built with Retell AI, n8n, Supabase, PostgreSQL, and Google Calendar, VoiceOps AI explores how conversational AI can connect with real business workflows. 🔹 AI-powered voice interactions 🔹 Appointment availability checks 🔹 Calendar and booking integrations 🔹 Workflow validation and error handling 🔹 Automated scheduling processes This video is a conceptual showcase of the solution. The underlying automation workflows are being developed and tested as an independent project. Developed by Veytrixa Technologies. Looking for custom AI agents or business automation solutions? Let's connect. #AIAgents #VoiceAI #n8n #AIAutomation #BusinessAutomation
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