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)
Alert Runbook Template
A standardized runbook for responding to alerts: triage, diagnosis, mitigation, resolution, and post-incident steps with escalation paths.
Dashboard Design Template
A template for designing observability dashboards with SLOs, error budgets, service health, and contextual information for on-call teams.
Incident Postmortem Template
A blameless postmortem template for documenting incidents: timeline, impact, root cause, contributing factors, and action items with owners.
Observability Maturity Assessment Template
A template for assessing logging, metrics, and tracing maturity across teams with scoring, gap analysis, and improvement roadmap.
Access Control Policy Template
A template for defining authentication, authorization, RBAC, ABAC, MFA, password policies, session management, and access review procedures.
Encryption Key Rotation Runbook
A runbook for encryption key rotation covering key types, rotation schedules, zero-downtime procedures, dual-key migration, verification,...
Incident Response Plan Template
A template for incident response covering severity classification, roles, detection, containment, eradication, recovery, and post-incident...
Penetration Test Report Template
A template for penetration test reports covering scope, methodology, findings, severity ratings, evidence, and remediation recommendations.
Security Audit Checklist
A checklist for security audits covering network security, application security, data protection, access control, monitoring, incident...
Security Incident Response Template
A template for security incident response covering detection, classification, containment, eradication, recovery, communication, and...
Vulnerability Management Process Template
A template for vulnerability management covering discovery, triage, prioritization, remediation SLAs, verification, and reporting...
Bug Reproduction Steps Template
A template for writing minimal, reliable bug reproduction steps that help developers reproduce and fix issues quickly.
Regression Test Checklist
A checklist for verifying existing functionality after changes: pre-deploy checks, post-deploy smoke tests, and rollback verification.
Test Case Template
A standardized test case format with steps, expected results, preconditions, and postconditions for manual and automated testing.
Test Coverage Report Template
A template for reporting test coverage by module, feature, and critical path with trend analysis and gap identification.
Test Strategy Document Template
A template for documenting test approach per project: pyramid, scope, environments, tools, CI/CD gates, and quality metrics.
API Gateway: Routing, Auth, Rate Limiting
Master API gateway architecture: request routing, authentication, rate limiting, request shaping, response caching, protocol translation,...
Event Sourcing and CQRS: Event Store, Projections
Master event sourcing and CQRS: event store design, aggregate roots, projections, read models, snapshots, sagas, and production patterns...
Modular Monolith: Module Boundaries, Shared Kernel
Master modular monolith architecture: module boundaries, shared kernel, dependency rules, communication patterns, and incremental migration...
Strangler Fig Migration: Incremental Legacy Replacement
Master the strangler fig pattern for incremental legacy migration: routing layer, feature flags, data synchronization, rollback strategies,...
Clean Code: Naming, Functions, Classes, Comments
Master clean code principles: meaningful naming, small functions, single responsibility, comments, formatting, error handling, and...
Code Reviews: Reviewer Mindset, Feedback, Automation
Master code review best practices: reviewer mindset, constructive feedback, review checklists, automated checks, PR sizing, and building a...
Refactoring Guide: Extract Method, Replace Conditional,
Master refactoring techniques: extract method, replace conditional with polymorphism, move function, extract class, rename, and safe...
Technical Debt: Track, Prioritize, Pay Down
Master technical debt management: identify debt types, track with debt registers, prioritize using impact vs effort, schedule paydown...