# ABDELRAHMAN MAHMOUD - Complete Engineering Dossier & Machine-Readable Corpus (LLM Full) ================================================================================ IDENTITY & EXECUTIVE SUMMARY ================================================================================ Name: ABDELRAHMAN MAHMOUD Title: FULL STACK DEVELOPER | BACKEND & CLOUD ENGINEER Tagline: Architecting resilient distributed backends, high-concurrency Node.js services, and dynamic React interfaces. Location: Cairo, Egypt Availability: OPEN TO WORK // FULL-TIME & CONTRACT Bio: Self-taught Full Stack & Cloud-fluent Engineer who transitioned into tech through relentless discipline. Proven track record delivering 5.0 ★ freelance solutions on Upwork, architecting enterprise multi-tenant systems (NEXUS-CRM, 47 endpoints, RBAC, Redis), and leading an engineering team to deploy cloud-native healthcare infrastructure on AWS ECS Fargate with Terraform. Dual AWS Certified (Developer Associate & Cloud Practitioner), seeking high-impact Junior Full Stack / Backend opportunities in Cairo or remote. Canonical Website: https://abdelrahmanmahmoud.vercel.app JSON Profile API: https://abdelrahmanmahmoud.vercel.app/api/profile Concise Index: https://abdelrahmanmahmoud.vercel.app/llms.txt ================================================================================ TECHNICAL CAPABILITIES & SKILLS MATRIX ================================================================================ [Category: PROGRAMMING LANGUAGES] Skills: TypeScript | JavaScript (ES6+) | C++ | HTML5 | CSS3 [Category: BACKEND & API ARCHITECTURE] Skills: Node.js | Express.js | RESTful APIs | Microservices | Modular Monoliths [Category: FRONTEND & UI DEVELOPMENT] Skills: React.js | Angular | Redux Toolkit | Tailwind CSS | Progressive Web Apps (PWA) [Category: DATABASES & CACHING] Skills: PostgreSQL | MongoDB | Redis (Caching & Rate Limiting) | SQL Server | Prisma ORM | Mongoose [Category: CLOUD & DEVOPS] Skills: AWS | Docker | Terraform (IaC) | GitHub Actions | CI/CD Pipelines | Linux [Category: CORE CS CONCEPTS] Skills: Data Structures & Algorithms | Object-Oriented Programming (OOP) | Multithreading (OpenMP) | Role-Based Access Control (RBAC) | System Design | SDLC [Category: LANGUAGES] Skills: Arabic (Native) | English (Professional Working Proficiency) ================================================================================ DETAILED PROJECT CASE STUDIES & ARCHITECTURE ================================================================================ PROJECT: NEXUS-CRM — Multi-Tenant Sales CRM SaaS Identifier: proj-nexus-crm Dedicated Preview Route: https://abdelrahmanmahmoud.vercel.app/portfolio/projects/nexus-crm Featured: Yes Tagline: Multi-tenant Sales CRM SaaS engineered with React 19, Prisma, PostgreSQL tenant isolation, Redis RBAC & Resend OTP Description: A sleek, high-performance Multi-Tenant Sales CRM SaaS engineered for modern sales teams. Streamline pipeline velocity, manage omnichannel contacts, and close deals faster with strict application-level tenant isolation, interactive Kanban boards, and zero-trust authentication. Technology Stack: React 19, TypeScript, Node.js, PostgreSQL, Prisma, Redis, Docker, Resend API Links: - Live Demo / Application: /assets/Projects/Nexus CRM/dashboard-overview.png - GitHub Repository: https://github.com/Abdelrahman-Mahmoud-Elsaeed/NEXUS-CRM Interactive Visual Evidence: * DEALS KANBAN: /assets/Projects/Nexus CRM/deals-kanban-board.png * DASHBOARD: /assets/Projects/Nexus CRM/dashboard-overview.png * CONTACTS: /assets/Projects/Nexus CRM/contacts-directory.png * COMPANIES: /assets/Projects/Nexus CRM/companies-directory.png * CONTACT TIMELINE: /assets/Projects/Nexus CRM/contact-details-timeline.png * RBAC PERMISSIONS: /assets/Projects/Nexus CRM/team-members-rbac.png * WORKSPACE SWITCH: /assets/Projects/Nexus CRM/workspace-switcher.png * AUTH LOGIN: /assets/Projects/Nexus CRM/auth-login.png -------------------------------------------------------------------------------- PROJECT: MediMind — Healthcare Management & Adherence Ecosystem Identifier: proj-medimind Dedicated Preview Route: https://abdelrahmanmahmoud.vercel.app/portfolio/projects/medimind Featured: Yes Tagline: Enterprise Intelligent Healthcare Platform — Flutter Mobile App + Next.js PWA, AWS ECS Fargate & Gemini AI Vision OCR Description: An enterprise-grade, intelligent healthcare management system designed to automate, track, and optimize patient medication adherence. MediMind bridges the operational gap between patients, family caregivers, professional medical contacts, partner pharmacies, and platform administrators. Built with a Flutter mobile app and a Next.js Progressive Web App (PWA), powered by a containerized Node.js/Express backend on AWS ECS Fargate. Technology Stack: Flutter, Next.js, PWA, Node.js, MongoDB, Socket.IO, Docker, Terraform, AWS ECS Fargate, Gemini AI OCR, Stripe Links: - Live Demo / Application: /assets/Projects/MediMind/dashboard-overview.png - GitHub Repository: https://github.com/Abdelrahman-Mahmoud-Elsaeed/MediMind Interactive Visual Evidence: * OVERVIEW: /assets/Projects/MediMind/medimind-cover.png * DASHBOARD: /assets/Projects/MediMind/dashboard-overview.png * CALENDAR: /assets/Projects/MediMind/adherence-calendar.png * MEDICINE CABINET: /assets/Projects/MediMind/medications-cabinet.png * CARE CIRCLE: /assets/Projects/MediMind/care-circle-caregivers.png * HEALTH PROFILE: /assets/Projects/MediMind/health-profile.png * DOSE REMINDERS: /assets/Projects/MediMind/dose-reminder-modal.png * REFILL REQUESTS: /assets/Projects/MediMind/refill-requests-list.png -------------------------------------------------------------------------------- PROJECT: Full-Stack E-Commerce Platform Identifier: proj-e-commerce Dedicated Preview Route: https://abdelrahmanmahmoud.vercel.app/portfolio/projects/e-commerce Featured: Yes Tagline: Modern E-Commerce Storefront & REST API with Dynamic Multi-Image SEO, Automated CI/CD & Terraform IaC Description: Engineered a production-grade full-stack e-commerce system with a decoupled React frontend and RESTful Express API. Includes dynamic multi-image rendering optimized for SEO and Core Web Vitals, persistent cart & wishlist, secure checkout, interactive Swagger API docs, automated GitHub Actions CI/CD pipelines, and Terraform scripts managing AWS cloud infrastructure. Technology Stack: React, Node.js, Express, MongoDB, Docker, Terraform, GitHub Actions, Swagger Links: - Live Demo / Application: /assets/Projects/e-commerce/01_home_page_full.png - GitHub Repository: https://github.com/Abdelrahman-Mahmoud-Elsaeed/Product_Management_API Interactive Visual Evidence: * STOREFRONT: /assets/Projects/e-commerce/01_home_page.png * PRODUCT DETAILS: /assets/Projects/e-commerce/02_product_details.png * CART & ORDERS: /assets/Projects/e-commerce/05_cart_page_populated.png * WISHLIST: /assets/Projects/e-commerce/06_wishlist_page_populated.png * SWAGGER API: /assets/Projects/e-commerce/10_swagger_api_docs.png * CHECKOUT: /assets/Projects/e-commerce/11_checkout_page_full.png * CI PIPELINE: /assets/Projects/e-commerce/CI.png * CD PIPELINE: /assets/Projects/e-commerce/CD.png -------------------------------------------------------------------------------- PROJECT: Linear Equations Solver in C++ Identifier: proj-linear-solver Dedicated Preview Route: https://abdelrahmanmahmoud.vercel.app/portfolio/projects/linear-solver Featured: Yes Tagline: High-Performance Numerical Linear Algebra Engine in C++ with OpenMP Multithreading & Cache-Conscious Memory Architecture Description: Developed a high-performance numerical C++ engine to solve massive systems of linear equations using Gaussian elimination with partial pivoting. Applied OpenMP parallelization loops, flattened 1D contiguous matrix layouts to conquer the Memory Wall, and low-level cache optimizations, solving up to 10,000 equations in ~3 minutes. Technology Stack: C++, High-Performance Computing, Algorithms, OpenMP, Multithreading Links: - Live Demo / Application: /assets/Projects/Linear Equations Solving/linear_system_equation_simple.png - GitHub Repository: https://github.com/Abdelrahman-Mahmoud-Elsaeed/linear_equation_solver_in_Cpp Interactive Visual Evidence: * NORMAL MODE: /assets/Projects/Linear Equations Solving/normal_mode_example.png * BENCHMARK: /assets/Projects/Linear Equations Solving/benchmark_mode_example.png * SYSTEM MODEL: /assets/Projects/Linear Equations Solving/linear_system_equation_simple.png * MATRIX MATH: /assets/Projects/Linear Equations Solving/linear__system_model_details.png -------------------------------------------------------------------------------- ================================================================================ PROFESSIONAL CERTIFICATIONS & VERIFIED CREDENTIALS ================================================================================ CERTIFICATION: AWS Certified Developer – Associate Issuer: Amazon Web Services Issue Date: October 2026 Status: Verified Credential ID: 07ee61c839764b32ae7e4d9f3e11826a Dedicated Verification Route: https://abdelrahmanmahmoud.vercel.app/portfolio/certifications/aws-developer-associate Official Verification Link: /assets/Certificates/aws-certified-developer-associate.pdf CERTIFICATION: AWS Certified Cloud Practitioner Issuer: Amazon Web Services Issue Date: July 2026 Status: Verified Credential ID: 49a69e2bee3f4dde9b7c43c832ce9149 Dedicated Verification Route: https://abdelrahmanmahmoud.vercel.app/portfolio/certifications/aws-cloud-practitioner Official Verification Link: /assets/Certificates/aws-certified-cloud-practitioner.pdf CERTIFICATION: Meta Front-End Developer Specialization Issuer: Coursera & Meta Issue Date: April 2026 Status: Verified Credential ID: FR55AET5H5QQ Dedicated Verification Route: https://abdelrahmanmahmoud.vercel.app/portfolio/certifications/meta-frontend-developer Official Verification Link: /assets/Certificates/meta-front-end-developer-specialization.pdf CERTIFICATION: AI-Based Software Development Specialization Issuer: MCIT in collaboration with Egyptian Military Academy Issue Date: Nov 2025 – Present Status: IN PROGRESS Credential ID: N/A Dedicated Verification Route: https://abdelrahmanmahmoud.vercel.app/portfolio/certifications/mcit-ai-software-development Official Verification Link: N/A CERTIFICATION: Advanced Full-Stack Web Development Certification Issuer: MCIT & Udacity Issue Date: March 2023 Status: Verified Credential ID: HG4NWNRJ Dedicated Verification Route: https://abdelrahmanmahmoud.vercel.app/portfolio/certifications/udacity-fullstack-developer Official Verification Link: /assets/Certificates/advanced-full-stack-web-development.pdf ================================================================================ CAREER NARRATIVE & PHASES (ENGINEER'S JOURNEY) ================================================================================ PHASE 01: FROM ZERO TO SOFTWARE ENGINEER Tag: PHASE 01 // ORIGIN & INITIATIVE Badge: MANSOURA UNIVERSITY Status: Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-01 Narrative: Started coding from absolute zero in my final year at Mansoura University (Computer Teacher Preparation). With no CS degree or head start, I committed completely to learning software engineering line by line on a single laptop. System Specs & Highlights: * ORIGIN: Faculty of Specific Education, Mansoura * APPROACH: Relentless daily hands-on practice & building * OUTCOME: Solid algorithmic & full-stack engineering foundation PHASE 02: FELLOWSHIP & FIRST CLIENT DELIVERY Tag: PHASE 02 // THE TURNING POINT Badge: MARCH 2023 Status: Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-02 Narrative: Earned the Advanced Full-Stack Web Development certification by MCIT × Udacity. Rather than staying in tutorials, I entered the global freelance market on Upwork—shipping real client milestones with a spotless 5.0 ★ rating. System Specs & Highlights: * CREDENTIAL: MCIT × Udacity Advanced Full-Stack (Node.js & Express) * FREELANCE: Upwork client delivery with 100% on-time milestone execution * SCORE: 5.0 ★ Rating across international client projects PHASE 03: MILITARY SERVICE: TACTICAL FORGE Tag: PHASE 03 // THE PAUSE Badge: 2023 – 2024 Status: MANDATORY MILITARY SERVICE COMPLETED Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-03 Narrative: Served mandatory military duty for one year right after graduation. While an inevitable hiatus from daily coding, it forged operational resilience, mental stamina, and an urgency to modernize as tech shifted toward cloud & AI architectures. System Specs & Highlights: * DURATION: 2023 – 2024 · Completed with Honor * CORE GAIN: Elite mental endurance, accountability & crisis focus * STRATEGIC PIVOT: Returned with clear roadmap: master distributed cloud & AI PHASE 04: DIGILIANS AI SOFTWARE TRACK Tag: PHASE 04 // RE-ENTRY & ACCELERATION Badge: PRESIDENTIAL INITIATIVE Status: IN PROGRESS Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-04 Narrative: Selected for Digilians—the presidential AI-based software track organized by MCIT and the Egyptian Military Academy. Deepening expertise across distributed architectures, cloud-native deployments, and AI-augmented workflows. System Specs & Highlights: * PROGRAM: Digilians AI-Based Software Development Track * ORGANIZERS: MCIT × Egyptian Military Academy * STATUS: Currently Enrolled & Active PHASE 05: PRODUCTION SCALE: NEXUS & MEDIMIND Tag: PHASE 05 // BUILDING REAL SYSTEMS Badge: PRODUCTION SCALE Status: Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-05 Narrative: Transformed advanced training into production scale: architected NEXUS-CRM's multi-tenant RBAC system with Redis caching, and led a 6-developer team to build and deploy MediMind on AWS ECS Fargate with Terraform IaC. System Specs & Highlights: * NEXUS-CRM: 47 REST endpoints, 5-tier RBAC, Redis cache, PostgreSQL * MEDIMIND: Team Lead (6 devs), AWS ECS Fargate, Terraform IaC, Docker * FOCUS: High concurrency, tenant data isolation & cloud resilience PHASE 06: DUAL AWS CERTIFIED & READY TO SHIP Tag: PHASE 06 // WHERE I STAND NOW Badge: READY FOR PRODUCTION Status: Dedicated Route: https://abdelrahmanmahmoud.vercel.app/portfolio/about/phase-06 Narrative: Validated by two AWS certifications and production system leadership. Combining backend rigor with cloud fluency, actively seeking a Junior Full Stack or Backend Engineer role to build reliable systems. System Specs & Highlights: * CLOUD CREDENTIALS: AWS Certified Developer (DVA-C02) + Cloud Practitioner (CLF-C02) * TARGET ROLE: Junior Full Stack / Backend Engineer * WORK MODE: Cairo, Egypt (On-site/Hybrid) or Global Remote ================================================================================ PROFESSIONAL EXPERIENCE & WORK HISTORY ================================================================================ ROLE: Freelance Full-Stack Developer Organization: Upwork Platform Period: 2023 – 2026 Description: Delivered production client solutions with 5.0 ★ client rating across frontend and backend modules. Key Deliverables: * Google-style FAQ Portal (Sep 2023 – Feb 2024 · Angular, Node.js, MongoDB): Built a Google-style FAQ search platform with text and image search, full-text search, relevance ranking, and XLS/CSV bulk upload. * Angular Client Codebase (Oct 2023 – Aug 2026 · Angular, TypeScript): Delivered Angular tasks in functional units on the client's existing Git repository, including a reusable module of 5+ configurable UI components. ================================================================================ CONTACT & DIRECT REACHABILITY ================================================================================ - GITHUB: https://github.com/Abdelrahman-Mahmoud-Elsaeed (Abdelrahman-Mahmoud-Elsaeed) - LINKEDIN: https://www.linkedin.com/in/abdelrahman-mahmoud-akl/ (abdelrahman-mahmoud-akl) - UPWORK: https://www.upwork.com/freelancers/~014afdf02b133b0c03 (Abdelrahman M.) - WHATSAPP: https://wa.me/201095160726 ((+20) 01095160726) - EMAIL: mailto:abdelrahman.mahmoud.elsaeed@gmail.com (abdelrahman.mahmoud.elsaeed@gmail.com)