Mathias Paulenko
Software Engineer & Founder of StackPractices
Mathias Paulenko
Software Engineer
Software engineer with 12+ years of experience building production systems across Python, JavaScript, React, and DevOps. I have contributed to enterprise projects spanning CI/CD pipelines, API design, cloud infrastructure, and full-stack development.
StackPractices is my personal project, born from a simple belief: great documentation should be copy-paste ready. Every recipe, pattern, and guide on this site is designed to save you time and help you ship faster.
Published Works (1008)
PostgreSQL Query Optimization and Indexing Strategies
Analyze and optimize slow PostgreSQL queries using EXPLAIN, proper indexing, partial indexes, and...
Redis Cache Patterns for High-Performance Applications
How to implement cache-aside, write-through, and write-behind patterns with Redis to reduce...
Container Image Security Scanning with Trivy
Scan Docker images for vulnerabilities, misconfigurations, and secrets using Trivy, integrate...
Canary Deployments with Istio Service Mesh
How to use Istio traffic splitting to perform safe canary deployments by gradually shifting user...
Load Balancing with HAProxy and Health Checks
Configure HAProxy as a high-performance load balancer with active health checks, sticky sessions,...
Event Streaming with Apache Kafka and Node.js
Build growth-ready event-driven systems using Apache Kafka with producers, consumers, consumer...
SPA Performance: Code Splitting and Lazy Loading
Improve single-page application load times by splitting bundles at route and component level,...
Schema-Based Data Validation with Zod in TypeScript
Validate and sanitize incoming data using Zod schemas with TypeScript inference, custom...
Implement OAuth 2.0 PKCE for Single-Page Applications
How to implement the OAuth 2.0 PKCE flow in single-page applications to securely authenticate users...
Live Database Credentials with HashiCorp Vault
How to use HashiCorp Vault to generate short-lived database credentials, eliminating hardcoded...
Composite Pattern for UI Component Trees in React
Use the Composite pattern to compose objects into tree structures, letting clients treat individual...
Dependency Injection Container in TypeScript
Build a lightweight DI container that resolves class dependencies automatically, enabling testable,...
Flyweight Pattern for Efficient Large-Scale Object Sharing
Use the Flyweight pattern to minimize memory usage by sharing as much data as possible between...
Prototype Pattern for Object Cloning and Configuration
Create new objects by copying existing ones, allowing pre-configured templates and avoiding...
Proxy Pattern for API Response Caching
How to implement a caching proxy that intercepts API calls and stores responses to reduce latency...
SOLID Principles in TypeScript with Practical Examples
Apply the five SOLID principles to TypeScript code to improve maintainability, testability, and...
Generate Images Programmatically with AI Models
How to create, edit, and optimize images using DALL-E, Stable Diffusion, and Midjourney APIs with...
Distribute Traffic with Load Balancing Algorithms
How to distribute incoming requests across multiple servers using round-robin, least-connections,...
Resilient Microservices with Circuit Breakers, Retries
How to build fault-tolerant distributed systems using microservices patterns including circuit...
Secure and Observe Microservices with a Service Mesh
How to deploy Istio or Linkerd to add mTLS, traffic management, observability, and policy...
Implement Passwordless Login with Magic Links
How to build secure passwordless authentication using time-limited magic links sent via email, with...
Coordinate Shared Access with Locks, Mutexes, and Semaphores
How to prevent race conditions in concurrent programs using mutexes, read-write locks, semaphores,...
Manage Concurrent Work with Thread Pools and Executors
How to efficiently manage worker threads using thread pools, executors, and rejection policies in...
Scale Read and Write Workloads with CQRS
How to separate read and write models using Command Query Responsibility Segregation for optimized...