frontend-excellence

Query optimization, indexing strategies, and database performance tuning for PostgreSQL and MySQL

Django architecture patterns including DRF, ORM optimization, signals, middleware, and project structure

CI/CD pipeline design with GitHub Actions, Docker, Kubernetes, Helm, and GitOps patterns

Data engineering patterns for ETL pipelines, data warehousing, Apache Spark, and data quality validation

Web accessibility patterns for WCAG 2.2 compliance including ARIA, keyboard navigation, screen readers, and testing

REST API design with resource naming, pagination, versioning, and OpenAPI spec generation

Authentication and authorization patterns including OAuth2, JWT, RBAC, session management, and PKCE flows

AWS cloud patterns for Lambda, ECS, S3, DynamoDB, and Infrastructure as Code with CDK/Terraform

CI/CD pipeline patterns for GitHub Actions, GitLab CI, testing strategies, and deployment automation

Auto-extract patterns from coding sessions, track corrections, and build reusable knowledge with confidence scoring

Docker best practices including multi-stage builds, compose patterns, image optimization, and security

Advanced git workflows including worktrees, bisect, interactive rebase, hooks, and recovery techniques