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)
Deployment Rollback Runbook
Runbook for rolling back failed deployments: triggers, kubectl/Helm/ArgoCD commands, database...
Security Incident Response Template
A template for security incident response covering detection, classification, containment,...
Canary Deployment: Gradual Rollouts with Safety Controls
A practical guide to canary deployments: traffic splitting, automated promotion, rollback triggers,...
Platform Engineering — Building Internal Developer Platforms
A practical guide to platform engineering: IDP concepts, golden paths, self-service infrastructure,...
Technical Documentation Strategy: Docs as Code
A practical guide to treating documentation as code: versioning, review workflows, structure, and...
Blameless Postmortems: Learning from Incidents Without Blame
A practical guide to blameless postmortems: timelines, root causes, follow-ups, and building a...
Inbox Pattern
Use a dedicated inbox table or queue to record incoming events or requests, ensuring reliable...
Static Content Hosting Pattern
Deploy static files to a dedicated content delivery network or object storage to offload origin...
Database Indexing Strategies — From B-Trees to BRIN
A practical guide to database indexes: B-Trees, Hash, GIN, GiST, BRIN, and partial indexes. Learn...
API Security Checklist — Authentication to Encryption
A thorough security checklist for APIs: authentication, authorization, input validation, rate...
Cursor-Based Pagination in PostgreSQL (Keyset vs OFFSET)
Implement efficient cursor-based pagination for large datasets in PostgreSQL, avoiding OFFSET...
Prompt Chaining Pattern
Chain multiple LLM calls where each step's output feeds the next step's input. Break complex tasks...
Refresh-Ahead Cache Pattern
Proactively refresh cache entries before they expire to eliminate cache misses on hot keys and...
AI Data Preparation Checklist
Checklist for preparing data for LLM and RAG systems: data collection, cleaning, chunking,...
AI Prompt Version Control Template
Version your LLM prompts with eval scores, change history, rollback support, and A/B testing....
Encryption Key Rotation: Runbook
Use this encryption key rotation runbook to rotate keys with zero downtime. Covers schedules,...
Security Review Checklist for PRs
Checklist for security checks during pull request review: input validation, authentication,...
Secrets Management: Vault, Cloud Managers
A practical guide to secrets management: HashiCorp Vault, AWS Secrets Manager, Azure Key Vault, and...
Grafana Dashboards for Observability with Prometheus
Build Grafana dashboards that visualize Prometheus metrics. Use panels, template variables,...
Expose Custom Application Metrics with Python and Prometheus
Build a custom Prometheus metrics exporter in Python using prometheus_client. Covers counters,...
Debounce and Throttle Functions in JavaScript
Control function execution rate with debounce and throttle. Covers leading and trailing edge,...
Golden Master Testing: Characterize Legacy Code Safely
How to use golden master testing to characterize legacy code behavior before refactoring. Covers...
Observability Maturity Assessment Template
A template for assessing logging, metrics, and tracing maturity across teams with scoring, gap...
Service Level Objective (SLO) Document Template
An SLO document template that defines reliability targets, error budgets, and escalation policies...