Waqas Ahmad — Software Architect & Technical Consultant - Available USA, Europe, Global

Waqas Ahmad — Software Architect & Technical Consultant

Specializing in

Distributed Systems

.NET ArchitectureCloud-Native ArchitectureAzure Cloud EngineeringAPI ArchitectureMicroservices ArchitectureEvent-Driven ArchitectureDatabase Design & Optimization

👋 Hi, I'm Waqas — a Software Architect and Technical Consultant specializing in .NET, Azure, microservices, and API-first system design..
I help companies build reliable, maintainable, and high-performance backend platforms that scale.

Experienced across engineering ecosystems shaped by Microsoft, the Cloud Native Computing Foundation, and the Apache Software Foundation.

Available for remote consulting (USA, Europe, Global) — flexible across EST, PST, GMT & CET.
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Singleton

Definition

Exactly one instance of a class; in .NET prefer AddSingleton in DI so tests can replace.

As defined in the knowledge graph

  • One instance for the entire application; shared across requests. — From: Dependency Injection in .NET Core: In-Depth with Code Examples
  • Creational; exactly one instance; in .NET prefer DI. — From: Design Patterns: Creational, Structural, and Behavioral Overview

Related concepts

Concepts linked in the knowledge graph:

AddMemoryCacheCreationalSingle Instance

Articles mentioning this concept

Deep dives and guides that cover this topic:

Creational Design Patterns in .NET: All 5 Patterns with Full Working CodeDependency Injection in .NET Core: In-Depth with Code ExamplesDesign Patterns: Creational, Structural, and Behavioral Overview