Browse Skills

Build production-grade iOS home screen widgets, Lock Screen widgets, and StandBy mode experiences using WidgetKit and SwiftUI with proper timeline management and App Store compliance.

Expert advisor for Next.js 15 App Router architecture — Server Components, Server Actions, caching strategies, middleware, parallel routes, and deployment optimization. Helps you design and build production-grade fullstack applications.

Expert guidance for building production-grade full-stack applications with Remix and React Router v7, emphasizing progressive enhancement, nested routing, server-side data loading, and web platform standards.

Diagnose and fix Core Web Vitals issues (LCP, CLS, INP) with actionable, prioritized optimization strategies that measurably improve page performance and user experience.

Expert advisor for monorepo architecture — Turborepo, Nx, pnpm workspaces, dependency management, task orchestration, shared configurations, and CI optimization. Helps you structure and scale monorepo workflows for multi-package projects.

Comprehensive database design guidance covering schema modeling, normalization, indexing strategies, query optimization, migrations, PostgreSQL best practices, and choosing the right database for your use case.

Expert guidance for designing and operating Celery-based distributed task queues — from broker selection and queue topology to retry strategies, idempotency patterns, worker scaling, and production monitoring.

Advises on React 19 architecture patterns — Server Components, Suspense boundaries, hooks design, state management strategies, and component composition. Helps you build scalable, performant React applications with modern best practices.

Design, execute, and analyze load tests for HTTP APIs using modern tools like k6, Gatling, and Artillery to ensure APIs meet throughput, latency, and reliability targets.

Design high-throughput URL shortening services with production-proven hash generation, redirect optimization, abuse prevention, and click analytics architectures.

Design and build production-grade SaaS applications using Next.js App Router with authentication, subscription billing, multi-tenancy, and deployment best practices.

Design and build production-grade mobile applications using Expo (React Native) with Supabase as the backend-as-a-service, covering authentication, real-time data, storage, and deployment.

Comprehensive backend development guidance covering API design, database architecture, authentication, caching, server-side frameworks, microservices patterns, and production deployment for building scalable, secure server applications.

Diagnose and fix JavaScript rendering issues that prevent search engines from crawling, indexing, and ranking your web application. Covers SSR/SSG strategies, Core Web Vitals, and structured data.

Design and implement contract testing strategies for APIs and microservices to prevent breaking changes, ensure backward compatibility, and enable independent service deployment with confidence.

Expert guidance for building, governing, and scaling React component libraries with design tokens, visual regression testing, and cross-team adoption strategies.

Designs robust database schemas with optimal normalization, indexing strategies, and migration plans — helping you choose between PostgreSQL, NoSQL, and hybrid approaches for your workload.

Design accessible, performant, and reusable Svelte 5 components with proper reactivity architecture, WAI-ARIA compliance, animation patterns, and composition strategies.

Designs and implements lightweight Python microservices using Flask, covering service decomposition, inter-service communication, API design, and production deployment patterns.

Expert guidance for building production-grade Rust web services with Actix-Web. Covers async architecture, type-safe extractors, middleware patterns, database integration, error handling, testing, and deployment.

Architects production-ready ML model serving APIs with FastAPI, covering async request handling, Pydantic v2 validation, model loading patterns, batch inference, streaming responses, health checks, OpenAPI documentation, Docker containerization, and GPU inference optimization.

Design and implement comprehensive end-to-end test suites using Playwright, covering test architecture, page object models, CI integration, visual regression, and accessibility testing for modern web applications.

Comprehensive Git and GitHub guidance covering version control fundamentals, branching strategies, pull requests, GitHub Actions, code review, conflict resolution, and team collaboration workflows.

Comprehensive Node.js guidance covering runtime fundamentals, async patterns, package management, HTTP servers, streams, worker threads, security, and production deployment.