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ma7moudalysalem/README.md

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Technologist About Me

Mahmoud Salem · Software and Data Engineer · Cairo, Egypt
4+ Years in Enterprise-Grade Distributed Systems · Open for Remote and Freelance Opportunities
🎓 M.Sc. — Data Science and Data Engineering · Cairo University (In Progress)
🏅 Professional Diploma — Web Development and BI · ITI (2021–2022)
👨‍🏫 Academic Instructor and Mentor · Cairo University · DEPI · Private · 300+ Students
🔬 Theoretical Foundations
📐 Automata Theory · Formal Languages · Computability · Decidability
⚙️ Lexical Analysis · Parsing · Code Generation · Compiler Optimization
🖥️ Process Scheduling · Memory Management · Concurrency · File Systems
🏗️ Pipelining · Cache Hierarchies · ILP · Hardware-Aware Optimization
🗄️ Storage Engines · Buffer Pool Management · B+ Tree Indexing
🔍 Query Optimization · Cost-Based Planning · Join Algorithms
🔒 Concurrency Control (2PL, MVCC) · Crash Recovery (WAL, ARIES)
💻 Functional Programming · Lambda Calculus · Higher-Order Functions
🧬 OOP Thought Process · Type Systems · Logic Programming · Generics
📊 Amortized Analysis · Graph Algorithms · Dynamic Programming
🧮 Iterative Solvers · Interpolation · Finite Differences
📈 Statistical Inference · Probabilistic Modeling · Stochastic Processes
⚡ Applied Expertise
🔄 Event-Driven Architectures · RabbitMQ · Hangfire
🧩 CQRS · Event Sourcing · DDD · Identity Server 4
🗄️ Query Plan Analysis · Index Tuning · Lock Contention · Partitioning
☁️ ETL/ELT Pipelines · Azure · AWS · Data Warehousing
🚀 1M+ Daily Transactions · Sub-Second Latency · Connection Pooling
🏛️ Government-Scale Digital Transformation (Saudi Arabia and Egypt)

"I approach software engineering the way a physicist approaches a complex system — by decomposing it into first principles, modeling interactions between components, and deriving solutions from fundamental constraints. Every design decision is grounded in complexity analysis, formal reasoning, and mathematical rigor — not convention or trend."

DNA The Analytical Edge

"My trajectory from Physics into Software Engineering wasn't a career change — it was a natural extension. The same formal methods I used to model physical systems now inform how I architect distributed software. Where most engineers rely on patterns and conventions, I derive solutions from computational complexity bounds, formal language theory, database internals, and first-principles decomposition. Mentoring 300+ students across multiple institutions has only deepened this rigor."

Foundation How I Apply It
🧮 Numerical Analysis Pipeline tuning · Cost-based query optimization
📐 Algorithm Complexity Trade-off analysis · Data structure selection
🔬 Formal Languages Parser design · Validation engines · State machines
🗄️ Database Internals Buffer pools · B+ trees · MVCC · WAL recovery
🖥️ OS and Concurrency Thread pools · Deadlock prevention · Contention
⚙️ Compiler Design AST manipulation · DSL construction
🏗️ Computer Architecture Cache-conscious design · Memory-aligned access
💻 Programming Paradigms OOP design · Functional composition · Type safety
📊 Statistical Modeling Anomaly detection · Predictive dashboards

Tools Tech Arsenal

⚙️ Backend & Data Engineering

C# .NET 8 ASP.NET Core Azure Data Factory Synapse Azure Functions Python Pandas NumPy

🎨 Frontend Development

Angular TypeScript JavaScript RxJS NgRx HTML5 CSS3 Bootstrap

🗄️ Databases & Query Optimization

SQL Server T-SQL PostgreSQL Oracle MongoDB Redis

☁️ Cloud & DevOps

Azure AWS Docker GitHub Actions Azure DevOps

🔌 Messaging, Architecture & Practices

RabbitMQ Hangfire SignalR MediatR ASP.NET Web Forms OAuth 2.0 CQRS DDD SOLID Clean Architecture xUnit Git Jira Serilog

Briefcase Professional Journey

timeline
    title Career Timeline
    Aug 2021 : Software Engineer (Freelance)
             : Remote — International Clients (US, UK, UAE)
    Aug 2022 : Software Engineer
             : DMS (Data Management Systems)
    Apr 2023 : Software Engineer
             : Positive Side Horizons (PSH)
    2025 : Freelancing Program (Certified)
         : ITIDA Gigs — ITIDA x EYouth Initiative
    2025 : Data Engineer
         : Digital Egypt Pioneers Initiative (DEPI)
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Rocket Impact and Achievements

Metric Impact
🏆 Full Ownership 2 enterprise platforms (Tamayuz & Qiyasi) — architected, developed & maintained solo end-to-end
⚡ Data Processing Reduced time by 70% with Azure Data Factory & Synapse
💰 Cloud Costs Optimized by 35% through strategic Azure management
👥 Users Served Systems serving 10,000+ users with 99.9% uptime
📊 Daily Transactions Handled 1M+ for Saudi government transformation
🏥 Healthcare ICU monitoring across 500+ hospitals nationwide
🗺️ GIS Analytics Health dashboards covering 27 Egyptian governorates
💳 E-Commerce Platforms processing $500K+ monthly transactions
✍️ Automation Reduced manual errors by 60% in government systems
🎓 Mentoring Guided 300+ students across Cairo University, DEPI, and private sessions in 9 CS disciplines

Projects Featured Projects

🏢 Enterprise and Government Systems (Click to expand)

🏆 Tamayuz Platform — Sole Developer, Full Ownership End-to-End

Enterprise GRC and Organizational Excellence platform. Microservices architecture with modern Angular, legacy Web Forms, background processing, and message queuing.

Microservices ASP.NET Core Angular Web Forms RabbitMQ Hangfire Identity Server 4 SQL Server

🏆 Qiyasi System — Sole Developer, Full Ownership End-to-End

Saudi government digital transformation platform.

.NET Core Microsoft Graph API OAuth 2.0 OneDrive

Netaj System — Scalable APIs + Angular serving 10K+ users

ASP.NET Core Angular RabbitMQ Identity Server 4 ELK

National Marriage Registration — Nationwide government automation

Oracle ASP.NET MVC jQuery

Health Analytics Dashboard — GIS visualization for health statistics

Real-time Analytics GIS Mapping Statistical Modeling

ICU Management System — Hospital monitoring (500+ hospitals)

ASP.NET SQL Server Real-time Dashboards

🌐 Freelance and International Projects (Click to expand)

E-Commerce Platforms — Custom platforms for US, UK, UAE clients

ASP.NET Core Angular Stripe PayPal

Healthcare Patient Portals — HIPAA-compliant patient management

.NET Core RBAC Data Encryption

SaaS Applications — Multi-tenant with subscription management

Clean Architecture DDD Automated Billing

💻 Open Source and Personal (Click to expand)

⭐ Problem-Solving-Patterns — C# algorithm patterns guide

Sliding windows · Two-pointers · Fast/slow iterators · Interval merging · Cyclic sorting

⭐ Fawry Data Engineering — Lambda Architecture for fraud detection

Kafka Flink Spark

e-Tickets — Full-stack e-commerce · ASP.NET Core Clean Architecture

E-Commerce Angular — Angular-based e-commerce frontend

Billing System — Desktop invoicing solution in C#

Education Education and Teaching

Passionate Academic Instructor and Mentor with teaching experience across Cairo University, DEPI, and private sessions — collectively impacting 300+ students across core Computer Science and Data Engineering disciplines.
📊 M.Sc. — Data Science and Data Engineering · Cairo University (In Progress)
🏅 Professional Diploma — Web Development and BI · ITI (2021–2022)
🎖️ ITIDA Gigs — Certified Freelancing Program · ITIDA x EYouth (2025)
🎖️ DEPI — Data Engineering Track · Digital Egypt Pioneers Initiative (2025)
📚 Courses Taught and Assisted (Click to expand)

Cairo University
🖥️ Operating Systems
⚙️ Compiler Design
🏗️ Computer Architecture
📐 Theory of Computation
🧮 Mathematics for CS
💻 Programming Language Paradigms

Cairo University, DEPI, and Private
🗄️ Database Systems
📊 Algorithms and Data Structures

DEPI and Private
🔬 Data Science

Stats GitHub Analytics

github-snake

Connect Let's Connect

Contact
📧 [email protected]
📱 +20 101 162 0431
📍 Cairo, Egypt
💼 linkedin.com/in/ma7moudalysalem

"From automata theory and compiler internals to distributed architectures handling millions of transactions — I engineer formally reasoned, mathematically grounded systems that solve real problems at scale."

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