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)
SQL Joins — Visual Guide with Examples
A visual guide to SQL joins: INNER, LEFT, RIGHT, FULL OUTER, CROSS, and SELF joins with practical...
AWS Basics — Core Services for Developers
A practical guide to AWS core services for developers: compute, storage, databases, networking, and...
GCP Basics: Core Services for Developers
A practical guide to Google Cloud Platform core services for developers: compute, storage,...
Kubernetes Advanced — Beyond the Basics
An advanced guide to Kubernetes: operators, custom resources, admission controllers, multi-cluster...
WCAG 2.2 Accessibility: A Developer Guide
A practical guide to WCAG 2.2 compliance: perceivable, operable, understandable, and reliable...
Progressive Web Apps (PWA) — Complete Guide
A thorough guide to building Progressive Web Apps: service workers, offline support, Web App...
Web Components — Custom Elements, Shadow DOM & Templates
A practical guide to Web Components: creating reusable custom elements, encapsulating styles with...
GDPR Compliance — A Practical Guide for Developers
A developer-focused guide to GDPR compliance: data subject rights, lawful basis, data minimization,...
SOC 2 Compliance — Basics for Engineering Teams
A practical guide to SOC 2 Type II for developers: Trust Service Criteria, evidence collection, and...
Cryptography Basics — Encryption, Hashing, and Signing
A developer's guide to cryptography: symmetric and asymmetric encryption, hashing, digital...
OWASP Top 10: Explained with Mitigations
A developer-focused guide to the OWASP Top 10 security risks: how each vulnerability works,...
Secure Coding Practices — By Language and Pattern
A practical guide to secure coding practices across languages: input validation, memory safety,...
Threat Modeling — A Practical Guide for Development Teams
A step-by-step guide to threat modeling: STRIDE, attack trees, data flow diagrams, and integrating...
Zero Trust Architecture — Never Trust, Always Verify
A practical guide to implementing Zero Trust architecture: identity verification, least privilege,...
Use ORM for CRUD
How to perform CRUD operations using ORMs in Python, JavaScript, and Java.
API Performance Budget Template
A template for setting and tracking API latency and throughput performance budgets.
Microservice Contract Template
A template for defining service contracts and API agreements between microservices.
Service Dependency Map Template
A template for documenting and visualizing service dependencies in distributed systems.
System Diagram Template
A template for creating C4 model and architecture diagram standards.
Auto-Scaling Policy Template
A template for documenting scale-up and scale-down rules for cloud infrastructure.
Backup & Restore Verification Template
A template for documenting database and file backup verification procedures.
Bug Triage Template
A template for classifying and routing bug reports by severity and impact.
Change Management Template
A template for documenting CAB reviews and rollback criteria for production changes.
Cloud Cost Allocation Template
A template for tracking team and environment cloud cost allocation.