• Computer Science student at Palestinian Technical University – Khadoorie
• Backend-focused developer specializing in .NET and ASP.NET Core
• Experienced with PostgreSQL, SQL Server, Docker, REST APIs, automated testing, CI, concurrency, and performance optimization
• Interested in software architecture, distributed systems, backend performance, observability, and database design
• Comfortable working with Clean Architecture, SOLID principles, CQRS, design patterns, and asynchronous programming
• Based in Palestine

Completed a structured software engineering internship covering:

• Git and collaborative development workflows
• Functional programming with Python
• AI agent development in Python
• TypeScript
• HTTP clients and servers
• SQL and relational database fundamentals
• Docker and containerized applications
• Multiple hands-on engineering projects
• A performance-focused final backend project

During the program, I built projects including a Python AI agent, TypeScript Pokedex, blog aggregator, HTTP client/server applications, and a high-throughput log ingestion system as the internship final project.

Foothill Technology Solutions Internship Final Project

A performance-oriented backend system for ingesting, storing, querying, aggregating, and retaining large volumes of structured logs.

Tech: .NET 10 · ASP.NET Core · PostgreSQL 17 · Docker · Testcontainers · xUnit · k6 · Prometheus

• Designed using Clean Architecture with clear separation between application, domain, infrastructure, and API concerns
• Implemented batch ingestion with per-entry validation
• Built combinable filtering by service, level, time range, attributes, and message content
• Implemented cursor-based / keyset pagination
• Added time-bucketed aggregations and grouped queries
• Designed partition-based log retention
• Built a bounded producer-consumer ingestion pipeline
• Used PostgreSQL binary COPY and approximately 5,000-row group commits
• Added pre-aggregated minute rollups for fast analytical queries
• Added 100 automated tests using xUnit and Testcontainers
• Integrated CI contract validation and Prometheus metrics

Under the required application limits of:

• 0.5 CPU
• 256 MB RAM

the system achieved approximately:

• 14,999 logs/second ingestion throughput
• ~2 ms p95 aggregation latency
• 96.7 / 100 on Foothill Technology Solutions' standardized final-project benchmark

➡️ Repository: log-service

Full-stack inventory and accounting system built using ASP.NET Core, SQL Server, and Clean Architecture.

Includes:

• Product and inventory management
• Invoice processing
• Customer debt tracking
• Financial transactions
• Transaction history and reporting
• Separation of business, persistence, and presentation concerns

Desktop application written in C# for managing driving-license department workflows.

Includes:

• Driver management
• License applications
• Tests and appointments
• User administration
• License records
• Separate business and data-access layers

I am currently deepening my knowledge in:

• Software architecture and architectural trade-offs
• High-performance backend systems
• Distributed systems
• Database internals and query optimization
• Messaging and event-driven architectures
• Observability
• Performance testing and benchmarking
• Reliable and scalable API design
• DevOps and production-oriented backend engineering

My repositories focus mainly on:

• Backend engineering with .NET and ASP.NET Core
• High-performance database-backed systems
• PostgreSQL and SQL Server
• Clean Architecture and maintainable application design
• Dockerized development environments
• Automated testing and CI
• Performance testing and optimization
• TypeScript and Python projects from my software engineering internship

Most of my recent work is centered around building systems that go beyond CRUD applications and require deeper work in architecture, concurrency, databases, reliability, and performance.

I'm always interested in discussing backend engineering, .NET, system design, performance, open-source projects, internships, and software engineering opportunities.

• LinkedIn: devahmad-hussein
• GitHub: ahmad1542
• Email: ahmad.husien4@gmail.com