Web & Frontend

Runs a comprehensive mobile QA audit covering permissions, deep links, push notifications, offline mode, background/foreground transitions, memory leaks, network conditions, accessibility, and platform edge cases for Flutter, React Native, and native iOS/Android apps.

Audits and fixes responsive design issues across breakpoints, including fixed widths, missing media queries, non-responsive images, undersized touch targets, and horizontal scroll, with framework detection and verification at mobile, tablet, desktop, and wide viewports.

Scans a codebase for broken links and references, auto-fixes what it can, and flags what needs human review.

Audits and fixes interfaces to adapt across screen sizes and input modalities using container queries, adaptive navigation, and platform-aware layouts for web, mobile, tablet, and desktop.

Audits design quality across accessibility, performance, theming, and responsiveness, producing a prioritized report with severity ratings and fix recommendations.

Runs a headless-Chromium sweep at phone/tablet widths to catch off-screen overflow, tiny touch targets, clipped text, and oversized modals, then reports each offender with a screenshot and a concrete fix.

Guides the design and review of interactive Salesforce Flow screens, covering navigation, validation, component choice, and commit timing to avoid common UX failures.

Implements accessible drag-and-drop in Lightning Web Components using the HTML5 Drag and Drop API, with keyboard alternatives, live-region announcements, and file drop zones.

Optimizes Lightning Web Components for slow initial load, heavy rerenders, large-list rendering, payload reduction, and lazy instantiation choices such as lwc:if, tabs, or dynamic components.

Guides designing or reviewing Lightning Web Components for keyboard access, semantic labeling, and focus management, prioritizing base components over custom ARIA.

Builds a custom LWC lookup component with typeahead search via Apex SOSL/SOQL, debounce, keyboard navigation, and pill UI for cases where standard pickers fall short.

Implements HTML5 drag-and-drop in Lightning Web Components, covering dataTransfer usage, drop targets, visual states, and keyboard accessibility.

Theme Salesforce Lightning base components and custom LWCs using SLDS Styling Hooks, covering global and component hooks, shadow DOM considerations, Experience Cloud theming, and SLDS 2 migration.

Migrate LWC components from fragile querySelector lookups to typed lwc:ref handles, with guidance on lifecycle timing, shadow boundaries, and iterator limitations.

Style Lightning Web Components using SLDS design tokens, styling hooks, scoped CSS, and ::part() while avoiding common pitfalls like !important and shadow-DOM piercing.

Build accessible modal dialogs in LWC using the LightningModal base class, covering open(), close(), sizes, and accessibility.

Implements sibling communication between Lightning Web Components using Lightning Message Service (LMS) or the legacy pubsub utility, covering message channel definition, publish/subscribe patterns, and scope selection.

Write Vue 3 single-file components using the Composition API with script setup, covering reactivity, lifecycle, and built-in components.

Develop Nuxt 3 full-stack Vue applications with SSR, file-based routing, auto-imports, data fetching, and deployment guidance.

Provides a frontend design mode for strong visual direction, UI polish, redesigns, landing pages, and production-grade interface work, including shadcn-based surfaces.

Create and present web-based slidedecks for developers using Slidev with Markdown, Vue components, code highlighting, animations, and interactive features.

Configure and use UnoCSS, an instant atomic CSS engine that is a superset of Tailwind CSS, including rules, shortcuts, presets, and integrations.

Run web code in a webview on native platforms and as-is on web using Expo DOM components, enabling incremental migration of web code to native.

Adapt existing designs to work effectively across different contexts - different screen sizes, devices, platforms, or use cases.

Build documentation sites with VitePress, covering configuration, Markdown, Vue components, themes, and deployment.

Performs a meticulous final pass on frontend work, checking visual alignment, typography, color contrast, interaction states, micro-interactions, content, icons, forms, edge cases, responsiveness, performance, and code quality to elevate work from shipped to polished.

Runs AEO audits on deployed sites, applies targeted fixes, validates JSON-LD schema, generates llms.txt files, and monitors changes over time.

Deploy multilingual static websites for free on Cloudflare using the Astro framework, with support for i18n content, content collections, and direct or Git-based deployment.

Build content-focused websites with Astro, leveraging islands architecture, zero-JS defaults, multi-framework components, and Markdown/MDX support.

Generates frontend source code and a PR description from BA, TechLead, PM, and BE artifacts, following a level-based implementation plan.

Create text-based diagrams and visualizations using Mermaid.js v11 syntax, covering flowcharts, sequence diagrams, class diagrams, state diagrams, ER diagrams, Gantt charts, and more. Includes CLI conversion to SVG/PNG/PDF, JavaScript integration, theming, and configuration options.

Guides frontend development with React, TypeScript, and modern tooling, enforcing component-first, mobile-first, and testing practices.

Escribe tests de frontend centrados en el usuario con Vitest, Testing Library y Playwright, cubriendo unit, integración y E2E, y configura el runner de tests.

Guides choosing between Tailwind, CSS Modules, and global CSS with BEM, and implementing responsive layouts with Grid, Flexbox, and Container Queries.

Guides end-to-end testing of frontend applications using Playwright or Cypress, covering multi-page user flows in real browsers, API mocking, and CI integration.

Consume APIs from the frontend with TanStack Query, fetch, or SWR, including caching, refetching, optimistic updates, and error handling.