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)
API Status Page Template
A template for a public API status page that communicates uptime, incidents, and maintenance...
Capacity Planning Template
A reusable template for planning system capacity, estimating growth, and preventing performance...
Database Schema Documentation Template
A template for documenting database schemas with entity relationships, field definitions, and...
Generate Images Programmatically with AI Models
How to create, edit, and optimize images using DALL-E, Stable Diffusion, and Midjourney APIs with...
Build Resilient Systems with the Circuit Breaker Pattern
How to prevent cascading failures in distributed systems using circuit breakers with open, closed,...
Design Event-Driven Systems with Event Buses and Brokers
How to build loosely coupled systems using events, event buses, message brokers, and event sourcing...
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...
Manage Distributed Transactions with the Saga Pattern
How to implement saga orchestration and choreography to maintain data consistency across...
Secure and Observe Microservices with a Service Mesh
How to deploy Istio or Linkerd to add mTLS, traffic management, observability, and policy...
Secure API Key Authentication for Services and Clients
How to generate, distribute, validate, and rotate API keys for machine-to-machine authentication...
Implement Passwordless Login with Magic Links
How to build secure passwordless authentication using time-limited magic links sent via email, with...
Master Async Patterns with Promises, Futures, and Coroutines
How to write efficient concurrent code using async/await, promises, futures, and coroutines in...
Coordinate Concurrent Tasks with Communicating
How to structure concurrent programs using channels, select statements, and goroutines for safe...
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...
Bridge Incompatible Interfaces with the Adapter Pattern
How to integrate legacy APIs, third-party libraries, and incompatible interfaces using object...
Scale Read and Write Workloads with CQRS
How to separate read and write models using Command Query Responsibility Segregation for optimized...
Model Complex Business Domains with Domain-Driven Design
How to structure code around business concepts using bounded contexts, aggregates, entities, value...
Create Objects Flexibly with the Factory Pattern
How to use factory methods, abstract factories, and dependency injection containers to decouple...
Build Maintainable Applications with Hexagonal Architecture
How to structure applications using ports and adapters to isolate business logic from frameworks,...
Implement Reactive Systems with the Observer Pattern
How to build event-driven, reactive systems using the observer pattern with pub/sub, event...
Ensure a Single Instance with the Singleton Pattern
How to guarantee exactly one instance of a class exists in an application using lazy...
Swap Algorithms at Runtime with the Strategy Pattern
How to encapsulate interchangeable algorithms and behaviors using the strategy pattern with...