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)
On-Call and Incident Response Playbook
A practical playbook for on-call engineers: triage, escalation, communication, and postmortems....
Web Application Security (OWASP Top 10)
A developer-focused guide to the OWASP Top 10: injection, broken access control, XSS, insecure...
Test-Driven Development (TDD) — A Practical Workflow
Learn TDD step by step: write a failing test, make it pass, refactor. Red-Green-Refactor with real...
API Versioning
How to version REST and GraphQL APIs to maintain backward compatibility while evolving your...
Webhooks
How to create and consume webhook endpoints for real-time event-driven integrations.
WebSocket Server
How to build a WebSocket server for bidirectional real-time communication, with connection...
OAuth 2.0 Login
How to implement OAuth 2.0 authentication with Google, GitHub, and other providers.
Money and Currency Handling
How to represent, parse, format, and calculate monetary values accurately across currencies.
Caching with Redis
How to implement application caching using Redis for performance and scalability.
Database Migrations Safely
How to run database schema migrations without downtime or data loss.
Full-Text Search
How to implement full-text search with Elasticsearch, Meilisearch, and PostgreSQL.
Background Jobs
How to schedule and run background jobs using cron, task queues, and workers.
Generate Sitemaps Live
How to build and serve live XML sitemaps from your application data, with multi-language support,...
Health Check Endpoint
How to implement a production-ready health check endpoint for monitoring and load balancers.
Retry Logic with Exponential Backoff
How to implement resilient retry logic with exponential backoff and jitter for transient failures...
File Upload Validation
How to handle file uploads securely with size, type, and content validation.
Generate PDFs
How to generate PDF documents programmatically from HTML, templates, or raw data.
Import Data from CSV/Excel
How to parse and import data from CSV and Excel files with validation.
Debounce and Throttle
How to implement debounce and throttle patterns to control function execution frequency for search...
Changelog Template
A structured changelog template following Keep a Changelog conventions for tracking project...
Code of Conduct Template
A community code of conduct template to establish inclusive, respectful collaboration standards.
Onboarding Guide Template
A thorough onboarding guide template to help new team members get productive quickly.
Pull Request Template
A thorough pull request template to standardize code reviews and improve merge quality.