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Technical Problems & Solutions

Real-world engineering challenges I solved while building modern web applications.

Jun 2026•14 min read

IMemoryCache in ASP.NET Core: Production Patterns, Pitfalls, and When to Avoid It

IMemoryCache can boost your API performance by like 3-5x, but if you misconfigure it, it causes memory leaks and stale data real quick. Learn some production-tested patterns for safe caching, including token-based invalidation, size limits, and when you should probably just choose Redis instead.

.NET 8+ ASP.NET Core Performance In-Memory Caching Backend Architecture Production Best Practices
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Jun 2026•28 min read

Building .NET Microservices in Production: Kafka, Sagas, Kubernetes, and Hard-Won Lessons

After migrating 12 monolithic .NET apps to microservices, here are the patterns that actually work.. Kafka event streaming, Saga orchestration, Kubernetes deployment strategies, and yeah, the mistakes that caused some serious production outages.

.NET 8+ Microservices Architecture Event-Driven Design Kubernetes Production Distributed Systems Domain-Driven Design
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Jun 2026•16 min read

Redis Distributed Caching in .NET: Production Patterns, Pitfalls, and Performance Tuning

IMemoryCache just isn't enough for scaled .NET applications.. Learn how to implement Redis distributed caching safely: preventing cache stampedes, optimizing serialization, handling connection drops, and tuning for production Kubernetes environments, you know?

.NET 8+ ASP.NET Core Performance Redis Distributed Cache System Architecture Kubernetes Scaling
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July 2026•22 min read

Modern Android Development in 2026: Production Patterns, Compose Performance, and Scaling Architecture

Jetpack Compose and Kotlin are the standard, but building production-ready Android apps requires more than basic tutorials.. Learn the real-world patterns for state management, avoiding recomposition traps, optimizing Room, and structuring scalable Clean Architecture, you know?

Android Development Kotlin Jetpack Compose Clean Architecture Mobile Performance Coroutines & Flow
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July 2026•22 min read

Modern SwiftUI Architecture: NavigationStack, @Observable, and Production State Management

Beyond basic tutorials: Learn how to build scalable, crash-free iOS apps using type-safe NavigationStack routing, the new @Observable macro, and robust MVVM patterns that handle complex state changes, you know?

SwiftUI iOS Architecture Swift 6 State Management MVVM Mobile Development
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July 2026•20 min read

Public Key Cryptography in Production: RSA, ECC, TLS, and Key Management Best Practices

Textbook cryptography rarely survives contact with production.. Learn how to properly implement public/private key encryption, master Envelope Encryption, secure your keys in KMS/Vault, and understand modern TLS and Post-Quantum Cryptography, you know?

Application Security Cryptography Key Management TLS/SSL Backend Engineering Cybersecurity
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July 2026•24 min read

Azure AI in Production: RAG Architecture, Cost Optimization, and Enterprise Patterns That Actually Work

Building Azure AI applications is easy, but building them for production at scale is hard, honestly.. Learn the real-world patterns for RAG architecture, token cost optimization, prompt injection defense, and monitoring that we use to run Azure OpenAI workloads serving 10M+ requests monthly, you know?

Azure AI Azure OpenAI RAG Architecture Enterprise AI Cloud Architecture AI Cost Optimization
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July 2026•18 min read

Kubernetes Microservices Orchestration: A Production Guide to Deployments, Scaling, and Resilience

Moving from VMs to Kubernetes is complex.. This guide covers the practical reality of orchestrating microservices: managing Deployments, configuring Services, implementing autoscaling, and avoiding common production pitfalls that crash clusters, you know?

Kubernetes Microservices Architecture DevOps Engineering Container Orchestration Cloud Native .NET Core
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July 2026•22 min read

Entity Framework Core in Production: Advanced Performance Tuning, Query Splitting, and Avoiding Memory Leaks

EF Core is powerful, but misconfigured queries can crash your database, seriously.. Learn production-tested patterns for avoiding N+1 queries, mastering AsSplitQuery, implementing keyset pagination, and preventing change tracker memory leaks, you know?

.NET 8+ Entity Framework Core Database Performance SQL Optimization Backend Architecture
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July 2026•26 min read

Testing ASP.NET Core Web APIs in Production: xUnit, Testcontainers, WebApplicationFactory, and Avoiding Flaky Tests

Green CI pipelines can still hide production bugs, honestly.. Learn how to build a robust, fast, and reliable testing strategy for ASP.NET Core using xUnit, Testcontainers, WebApplicationFactory, and modern .NET 8+ patterns that actually catch real-world failures, you know?

.NET 8+ ASP.NET Core xUnit Integration Testing Testcontainers Software Quality
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July 2026•24 min read

Alibaba Cloud AI in Production: Qwen, RAG Architecture, Semantic Caching, and Cost Optimization

Calling an LLM API is easy, honestly. Building a scalable, secure, and cost-effective AI application on Alibaba Cloud is hard, basically.. Learn production-tested patterns for Qwen models, AnalyticDB vector search, semantic caching, and VPC isolation, you know?

Alibaba Cloud Qwen LLM RAG Architecture Enterprise AI .NET Backend Cloud Security
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July 2026•26 min read

PostgreSQL Performance in Production: Advanced Indexing, EXPLAIN ANALYZE, and Avoiding Table Bloat

Slow queries don't just annoy users, they crash production databases, honestly.. Learn production-tested PostgreSQL optimization patterns: mastering EXPLAIN (ANALYZE, BUFFERS), covering indexes, BRIN for time-series, and tuning autovacuum for high-churn tables, you know?

PostgreSQL Database Performance SQL Optimization Backend Engineering System Architecture
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July 2026•24 min read

Entity Framework Core in Production: Advanced Query Optimization, Avoiding Cartesian Explosions, and Memory Management

EF Core is powerful, but misconfigured queries can silently crash your database, honestly.. Learn production-tested patterns for mastering AsNoTracking, solving N+1 queries, implementing Keyset Pagination, and preventing Change Tracker memory leaks, you know?

.NET 8+ Entity Framework Core Database Performance SQL Optimization Backend Architecture Query Tuning
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July 2026•30 min read

.NET Design Patterns Guide: SOLID Principles, C# Examples, and Enterprise Application Architecture

Learn the most important .NET design patterns with practical C# examples, honestly. Understand SOLID principles, creational, structural, and behavioral patterns used to build scalable and maintainable enterprise applications, you know?

.NET C# Design Patterns Software Architecture SOLID Backend
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July 2026•25 min read

SOLID Principles in .NET: Complete Guide with C# Examples and Clean Architecture Practices

Learn how to apply SOLID principles in .NET applications with practical C# examples, honestly. Understand Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion principles for building maintainable software, you know?

.NET C# SOLID Clean Architecture Software Design Backend
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July 2026•30 min read

Domain Driven Design in .NET: Complete Guide with C# Examples, Clean Architecture, and Enterprise Patterns

Learn how to apply Domain Driven Design (DDD) in .NET applications, honestly. Understand entities, value objects, aggregates, domain events, bounded contexts, and enterprise architecture patterns with practical C# examples, you know?

.NET C# Domain Driven Design Clean Architecture Microservices Software Architecture
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July 2026•30 min read

Jetpack Compose Complete Guide: Modern Android UI Development with Kotlin Examples and Best Practices

Learn Jetpack Compose from beginner to advanced concepts, honestly. Understand composable functions, state management, layouts, navigation, Material 3, animations, performance optimization, and modern Android UI architecture with Kotlin examples, you know?

Android Kotlin Jetpack Compose Mobile Development UI Development Android Architecture
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July 2026•28 min read

Kotlin Coroutines and Flow in Production: Advanced Patterns, Leak Prevention, and Testing

Moving beyond basic tutorials: Learn how to build robust, leak-free Android apps using Kotlin Coroutines and Flow, honestly. Master structured concurrency, lifecycle-aware Compose collection, StateFlow vs SharedFlow, and production-ready testing patterns, you know?

Android Development Kotlin Coroutines Kotlin Flow Jetpack Compose Mobile Architecture Asynchronous Programming
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July 2026•35 min read

Android Clean Architecture with Kotlin: Complete Guide for Scalable Android Applications

Learn how to build scalable Android applications using Clean Architecture with Kotlin, honestly. Understand layers, dependency rules, MVVM, use cases, repositories, dependency injection, testing, and modern Android development practices, you know?

Android Kotlin Clean Architecture MVVM Software Architecture Mobile Development
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July 2026•35 min read

SwiftUI Combine Framework Complete Guide: Reactive Programming for Modern iOS Applications

Learn how to use the Combine framework with SwiftUI to build reactive iOS applications, honestly. Understand publishers, subscribers, operators, @Published, ObservableObject, asynchronous streams, networking, and best practices, you know?

SwiftUI Combine iOS Development Swift Reactive Programming Mobile Development
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July 2026•40 min read

SwiftUI State Management Complete Guide: @State, @Binding, @StateObject, @ObservedObject, @Environment, and @Observable

Learn SwiftUI state management from beginner to advanced concepts, honestly. Understand @State, @Binding, @StateObject, @ObservedObject, @Environment, ObservableObject, @Published, and the modern Observation framework for building scalable iOS applications, you know?

SwiftUI State Management Swift iOS Development MVVM Mobile Development
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