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)
Feature Request Template
A structured capability request template to help teams evaluate, prioritize, and implement new...
Post-Deployment Verification Checklist Template
A checklist template for verifying deployments: health checks, smoke tests, metric validation, and...
Release Notes Template
A release notes template that communicates changes clearly to users, operators, and stakeholders...
User Story and Acceptance Criteria Template
A user story template that connects user needs to implementation with clear acceptance criteria,...
Event-Driven Architecture — Queues, Topics, and Streams
A practical guide to event-driven architecture: events vs commands, message brokers, patterns like...
Microservices Architecture — When to Use and When Not To
A practical guide to microservices: benefits, trade-offs, common patterns, and when to choose them...
Monolith to Microservices — Migration Strategies
A practical guide to decomposing monoliths: strangler fig, branch by abstraction, and incremental...
System Design Interview Guide: Key Concepts
A practical guide to system design interviews: scalability, databases, caching, load balancing,...
CAP Theorem and Database Trade-offs
A practical guide to the CAP theorem: consistency, availability, and partition tolerance. Learn how...
Database Sharding and Partitioning Strategies
A practical guide to horizontal partitioning (sharding), vertical partitioning, and range vs hash...
NoSQL Database Selection — MongoDB, DynamoDB, Cassandra
A practical guide to choosing the right NoSQL database. Compare document, key-value, wide-column,...
SQL Performance Tuning — Indexes, Queries, and Explain Plans
A practical guide to optimizing SQL queries: indexing strategies, query rewriting, EXPLAIN plan...
Clean Code Principles: Writing Maintainable Software
A practical guide to clean code: meaningful names, short functions, DRY, SOLID foundations, and...
What Works in Code Review — For Authors and Reviewers
A practical guide to useful code reviews: how to write reviewable code, give constructive feedback,...
SOLID Principles Explained with Examples
Learn the five SOLID principles with practical code examples: Single Responsibility, Open/Closed,...
Blue-Green and Canary Deployments
A practical guide to deployment strategies: blue-green, canary, rolling, and feature flags....
Docker for Developers — A Complete Guide
Learn Docker from the ground up: images, containers, Dockerfiles, networks, volumes, and Docker...
Git Branching Strategies: A Practical Guide
Compare trunk-based development, GitFlow, and GitHub Flow. Choose the right branching strategy for...
Infrastructure as Code — Terraform and Pulumi
A practical guide to managing infrastructure as code: benefits of declarative vs imperative...
Kubernetes Basics for Application Developers
Learn the core Kubernetes concepts every developer needs: Pods, Services, Deployments, ConfigMaps,...
Monitoring and Alerting — Metrics, Logs, and Dashboards
A practical guide to observability: the three pillars (metrics, logs, traces), RED and USE methods,...
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...