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 (1032)
Complete Guide to React 19 Features
Master React 19 features. Covers server components, use() hook, actions, form actions,...
Complete Guide to Web Performance and Core Web Vitals
Optimize Core Web Vitals. Covers LCP, INP, CLS measurement and improvement, image optimization,...
Complete Guide to Event-Driven Systems
Design and operate event-driven backends. Covers event sourcing, CQRS, sagas, outbox pattern,...
Complete Guide to Apache Kafka in Production
Run Apache Kafka in production with confidence. Covers partitions, replication, consumer groups,...
Complete Guide to API Security
Secure your APIs end-to-end. Covers rate limiting, authentication, input validation, CORS, SQL...
Complete Guide to Authentication Patterns
Implement authentication in production. Covers JWT, OAuth2, session-based auth, passkeys, MFA,...
Complete Guide to OWASP Top 10 2025
Mitigate each OWASP Top 10 2025 risk with practical code examples. Covers broken access control,...
Complete Guide to Secrets Management
Manage application secrets securely in production. Covers HashiCorp Vault, AWS Secrets Manager,...
Complete Guide to Supply Chain Security
Secure your software supply chain end-to-end. Covers SBOM generation, dependency scanning,...
Complete Guide to AWS Lambda in Production
Run AWS Lambda in production with confidence. Covers cold start optimization, layers, deployment...
Complete Guide to Serverless Architecture
Decide when to go serverless and when not to. Covers FaaS patterns, event-driven design, cold...
Complete Guide to Serverless Databases
Choose and operate serverless databases for event-driven applications. Covers DynamoDB, Aurora...
API Rate Limiting
Protect APIs from abuse and ensure fair resource usage with token bucket, sliding window, and leaky...
Cache Database Query Results with Redis and Python
Cache expensive database query results in Redis with cache-aside pattern, TTL management, and...
Configure Caffeine Cache in Java with Eviction Policies
Set up Caffeine cache in a Java application with size-based, time-based, and weighted eviction...
Use Spring Cache Annotations with Redis Backend
Apply Spring's @Cacheable, @CachePut, and @CacheEvict annotations with a Redis cache manager for...
Cache HTTP Responses with Nginx Reverse Proxy
Configure Nginx as a caching reverse proxy to cache upstream HTTP responses with TTL zones, cache...
Implement Redis Cache Invalidation in Node.js
Invalidate Redis cache entries in Node.js with TTL expiry, explicit deletion, pattern-based...
Cache Database Queries with Django Cache Framework
Use Django's built-in cache framework with per-view caching, template fragment caching, and...
Cache HTTP Responses with httpx and CacheControl in Python
Cache HTTP responses in Python using httpx with CacheControl for HTTP-compliant caching, ETag...
Store User Sessions in Memcached with Python
Use Memcached as a distributed session store in Python web applications with pymemcache, TTL...
Build Async Pipelines with C# async/await and Task.Run
Build async pipelines in C# using async/await, Task.Run, Task.WhenAll, Task.WhenAny,...
Concurrent Patterns with Go Goroutines and Channels
Build concurrent systems in Go using goroutines, channels, select statements, worker pools,...
Compose Asynchronous Pipelines with Java CompletableFuture
Build non-blocking async pipelines in Java using CompletableFuture with thenCompose, thenCombine,...