williamzujkowski

Analyzes and optimizes frontend performance using Core Web Vitals, bundle analysis, lazy loading, image optimization, and caching strategies

Design RESTful APIs with OpenAPI 3.1/3.2, resource modeling, HTTP semantics, versioning, pagination, HATEOAS, and OWASP API Security.

Design data pipelines with quality checks, orchestration, and governance using modern data stack patterns for robust ELT/ETL workflows.

Validate WCAG 2.2 compliance (A/AA/AAA) with ARIA, color contrast, keyboard navigation, screen readers, and automated testing via axe-core/Pa11y.

Design Kafka architectures with exactly-once semantics, Kafka Streams, ksqlDB, Schema Registry (Avro/Protobuf), performance tuning, and KRaft.

Design RabbitMQ architectures with exchanges, quorum queues, routing patterns, clustering, dead letter exchanges, and AMQP best practices.

Configure Prometheus with alerting, recording rules, service discovery (K8s, Consul, EC2), federation, PromQL optimization, and Alertmanager.

Design unified dashboards with golden signals, OpenTelemetry correlation, SLO tracking, and Grafana 11 auto-correlations for metrics/logs/traces.

Orchestration & Events:

Kubernetes standards for container orchestration, deployments, services, ingress, ConfigMaps, Secrets, and security policies. Covers production-ready configurations, monitoring, and best practices for cloud-native applications.

Master Kotlin coding standards with null safety, coroutines, and idiomatic patterns. Use when developing JVM/Android applications requiring type-safe async programming.

Comprehensive coding standards and best practices for maintainable, consistent software development across multiple languages and paradigms

React frontend standards covering hooks (useState, useEffect, useContext, custom hooks), state management (Context API, Redux, Zustand), performance optimization (memoization, lazy loading, code splitting), testing with React Testing Library, and accessibility (WCAG 2.1, ARIA) for modern SPAs

Security Operations Center (SOC) practices, incident response, SIEM management, and threat hunting following NIST 800-61

Implement robust E2E tests with Playwright or Cypress using Page Object Model, proper waits, and CI/CD integration. Covers selector strategies, flaky test prevention, and cross-browser testing patterns.

Comprehensive testing standards including unit, integration, security, and property-based testing with TDD methodology