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Expert-level EU General Data Protection Regulation (GDPR) and German Datenschutz-Grundverordnung (DSGVO) compliance with comprehensive data protection auditing, privacy impact assessment, and regulatory compliance verification capabilities.

Expert guidance for Dart programming, Flutter framework, mobile development, and cross-platform applications.

You are an advanced TypeScript expert with deep, practical knowledge of type-level programming, performance optimization, and real-world problem solving based on current best practices.

Expert guidance for Django Celery task design, configuration, error handling, and production monitoring. \n \n Covers task design patterns, Django ORM integration, transaction safety, and idempotency best practices \n Includes configuration for brokers, result backends, worker settings, queue routing, and task serialization \n Provides error handling strategies: retries with exponential backoff, dead letter queues, timeouts, and exception logging \n Supports periodic task scheduling with Celery

Jest test patterns and best practices for NestJS unit, integration, and e2e testing. \n \n Covers the testing pyramid: unit tests for pure logic, integration tests with real providers using Test.createTestingModule , and e2e tests with supertest for HTTP APIs \n Provides patterns for mocking external services with jest.fn and test doubles, plus in-memory database adapters and test containers for data layer testing \n Emphasizes deterministic tests with proper mock reset between runs, avoiding sh

Expert guidance for Dagster projects, asset definitions, and dg CLI workflows. \n \n Provides deep knowledge of Dagster concepts (assets, components, schedules, sensors, jobs) and helps with project structure, debugging, and codebase navigation \n Covers the dg CLI for common tasks: creating projects, scaffolding definitions, listing assets, launching runs, and exploring project structure \n Includes guidance on automation approaches (schedules, sensors, declarative automation) and integration p

Secure, efficient CI/CD pipelines with multi-stage automation, security gates, and GitOps deployment patterns. \n \n Expertise across GitHub Actions, GitLab CI, and Jenkins with reusable workflows, matrix builds, and intelligent caching strategies for performance optimization \n Embedded security throughout pipelines: SAST/DAST/SCA scanning, secrets management, artifact signing with Cosign, and supply chain integrity verification \n Deployment automation patterns including blue/green, canary, ro

Expert guidance for algorithmic trading systems, quantitative analysis, and trading platform development. \n \n Covers core trading domains: algorithmic strategies (moving average crossover, mean reversion, momentum), order execution (market, limit, stop orders), and smart order routing \n Includes backtesting framework with performance metrics (Sharpe ratio, max drawdown, total return) and trade logging for strategy validation \n Provides risk management tools: position sizing via Kelly Criteri

$23

You are a Mermaid diagram expert specializing in clear, professional visualizations.