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 examples, performance tips, and common...
AWS Basics — Core Services for Developers
A practical guide to AWS core services for developers: compute, storage, databases, networking, and security fundamentals with hands-on...
Azure Basics — Core Services for Developers
A practical guide to Microsoft Azure core services for developers: compute, storage, databases, networking, and identity with hands-on...
GCP Basics: Core Services for Developers
A practical guide to Google Cloud Platform core services for developers: compute, storage, databases, networking, and data analytics with...
Kubernetes Advanced — Beyond the Basics
An advanced guide to Kubernetes: operators, custom resources, admission controllers, multi-cluster management, and production hardening for...
Terraform Best Practices — Modules, State, and Workspaces
A practical guide to Terraform best practices: module design, remote state management, workspaces, and security for production-grade...
WCAG 2.2 Accessibility: A Developer Guide
A practical guide to WCAG 2.2 compliance: perceivable, operable, understandable, and reliable principles with code examples for web...
Progressive Web Apps (PWA) — Complete Guide
A thorough guide to building Progressive Web Apps: service workers, offline support, Web App Manifest, push notifications, and...
Web Components — Custom Elements, Shadow DOM & Templates
A practical guide to Web Components: creating reusable custom elements, encapsulating styles with Shadow DOM, and composing with HTML...
GDPR Compliance — A Practical Guide for Developers
A developer-focused guide to GDPR compliance: data subject rights, lawful basis, data minimization, and technical measures for privacy by...
SOC 2 Compliance — Basics for Engineering Teams
A practical guide to SOC 2 Type II for developers: Trust Service Criteria, evidence collection, and building compliant systems from day one.
Cryptography Basics — Encryption, Hashing, and Signing
A developer's guide to cryptography: symmetric and asymmetric encryption, hashing, digital signatures, and key management with practical...
OWASP Top 10: Explained with Mitigations
A developer-focused guide to the OWASP Top 10 security risks: how each vulnerability works, real-world examples, and practical mitigations...
Secrets Management: Vault, Cloud Managers
A practical guide to secrets management: HashiCorp Vault, AWS Secrets Manager, Azure Key Vault, and GCP Secret Manager with rotation,...
Secure Coding Practices — By Language and Pattern
A practical guide to secure coding practices across languages: input validation, memory safety, authentication, and defensive patterns for...
Threat Modeling — A Practical Guide for Development Teams
A step-by-step guide to threat modeling: STRIDE, attack trees, data flow diagrams, and integrating security design review into your...
Zero Trust Architecture — Never Trust, Always Verify
A practical guide to implementing Zero Trust architecture: identity verification, least privilege, micro-segmentation, and continuous...
Use ORM for CRUD
How to perform CRUD operations using ORMs in Python, JavaScript, and Java.
API Lifecycle Management Template
A checklist template for API deprecation, versioning, and sunset procedures.
API Monitoring & Alerting Template
A template for defining API SLA thresholds, error rate alerts, and monitoring dashboards.
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.