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)
Token Bucket Rate Limiter: Smooth Traffic with Token Buckets
How to implement token bucket rate limiting for API protection — bucket refill, burst handling,...
Technical Specification Template
Use this technical specification template to document requirements, design decisions, architecture,...
Feature Spec Template (Copy-Paste + Example)
A template for writing clear, actionable feature specifications that align engineering, product,...
RabbitMQ Queue Design Template
Template for documenting RabbitMQ queue, exchange, and binding design: exchange types, queue...
Incident Postmortem Template
A blameless postmortem template for documenting incidents: timeline, impact, root cause,...
API Security Review Template (OWASP Checklist)
A fillable checklist template for reviewing API authentication, authorization, rate limiting, and...
OWASP Top 10 Remediation Checklist
Checklist for tracking OWASP Top 10 vulnerability remediation per application: risk assessment, fix...
Security Review Checklist for PRs
Checklist for security checks during pull request review: input validation, authentication,...
Vulnerability Management Template
A repeatable template for tracking vulnerabilities, assigning remediation owners, defining patching...
Feature Request Template
A structured capability request template to help teams evaluate, prioritize, and implement new...
User Story and Acceptance Criteria Template
A user story template that connects user needs to implementation with clear acceptance criteria,...
Load Test Report Template: Benchmarks and Bottlenecks
A standardized template for documenting load test results: throughput, latency percentiles, error...
Test Coverage Report Template
A template for reporting test coverage by module, feature, and critical path with trend analysis...
System Design Interview: Framework, Examples & Practice
A practical framework for system design interviews: how to structure your answer, the concepts...
Clean Code Principles: Naming, Functions, Classes
A practical guide to clean code principles: meaningful names, small functions, single...
CAP Theorem and Database Trade-offs
CAP theorem explained for practitioners: CP vs AP trade-offs, PACELC, tunable consistency per...
Multi-Cloud Strategy: Benefits, Pitfalls & Trade-offs
A practical guide to multi-cloud architecture: when to adopt it, workload placement, data gravity,...
Web Application Security (OWASP Top 10)
A developer-focused walkthrough of the OWASP Top 10 — injection, XSS, broken access control, SSRF...
Caching with Redis
How to implement application caching using Redis for performance and scalability.
GitHub Actions Workflow Examples: CI/CD, Matrix & Secrets
How to build and deploy with GitHub Actions using workflows, matrices, caching, secrets,...
Import Data from CSV/Excel
How to parse and import data from CSV and Excel files with validation, streaming, and batch inserts.
Compensating Transaction Pattern
Undo the effects of a completed transaction by executing a counter-operation, enabling eventual...
State Pattern
Allow an object to alter its behavior when its internal state changes. The GoF behavioral pattern...
Template Method Pattern
Define an algorithm's skeleton in a base class and let subclasses fill in the steps. The GoF...