👋 I'm Abdollah Mohajeri!

💻 Senior Software Engineer | .NET Backend Engineer | Distributed Systems | Clean Architecture | Cloud & DevOps

(amirhosein2015)

Senior Software Engineer with 8+ years of experience designing and building high-quality backend systems using .NET, C#, and scalable distributed architectures. My work focuses on creating production-ready services built with Clean Architecture, DDD principles, and modern cloud-native engineering practices.

I specialize in ASP.NET Core, EF Core, SQL Server/PostgreSQL, MongoDB, Redis, Docker, CI/CD pipelines, and containerized development workflows. I enjoy solving complex backend problems, optimizing performance, and designing maintainable, modular systems with clear domain boundaries.

I have delivered commercial-grade applications including e-commerce backends, B2B supply systems, API-driven services, and high-volume backend components. Additionally, have built and maintained complex, production-level systems with thousands of concurrent users — including Many published mobile apps & games with over 3 million total users. This practical experience has given me strong expertise in scalable architecture, performance optimization, and designing systems that grow smoothly as traffic increases.

Current technical focus areas:

• Distributed systems and microservices

• Scalable API architectures and performance engineering

• Cloud readiness, observability, logging, and monitoring

• System design, domain modeling, and maintainability

Open to backend-focused roles, including:

• Senior Software Engineer

• Senior Backend Engineer

• .NET Backend Engineer

• Software Developer (Backend)

Motivated to build robust engineering systems, continuously improve, and contribute to high-impact products.

I am proficient in C#, ASP.NET Core (MVC & Web API), Unity, Clean Architecture, Domain-Driven Design (DDD), OOP, Agile, and the entire Software Development Life Cycle (SDLC) — from concept and architecture to deployment and long-term maintenance.

Additionally, I have practical experience in UI/UX design, enabling me to create applications that are not only technically robust but also user-friendly and visually intuitive.

Driven by clean code, scalable system design, and building products that users truly enjoy. I am a passionate lifelong learner, constantly studying emerging technologies to refine my craft, and I genuinely enjoy the art of programming.

⚠️ Note: Due to confidentiality agreements, I cannot publish some of my commercial projects on GitHub. However, I have uploaded several sample projects that represent my coding style, architectural approach, and practical experience.

• Backend Mastery: High-performance .NET 8 Microservices, CQRS with MediatR, and Saga Orchestration via MassTransit & RabbitMQ.
• Frontend Engineering: Modern React 18 development with TypeScript (Strict Mode) and Industrial-grade UI/UX using Material UI.
• Data Strategy: Polyglot Persistence expert (SQL Server, PostgreSQL, MongoDB, Redis, and SQLite).
• Cloud & Observability: Production-grade Kubernetes orchestration, OpenTelemetry, Jaeger Tracing, and Seq Logging.

I am actively looking for Senior Software Engineer and Distributed Systems Architect roles within the European tech ecosystem.

“Precision in code, scalability in architecture, excellence in delivery.”