Skills

Core

HTML595%

Semantic HTMLForms & ValidationARIA AttributesWeb ComponentsMeta Tags & SEO Structure

CSS392%

FlexboxCSS GridAnimations & TransitionsResponsive Design / Media Queries

JavaScript (ES6+)95%

Async/Await & PromisesDestructuring & Spread/RestClosures & ScopeLexical EnvironmentLexical ScopeExecution ContextArrow FunctionsModules (ESM)Array/Object MethodsPrototypal InheritanceEvent Loop & Microtasks

ReactJs92%

Hooks (useState, useEffect, etc.)Custom HooksContext APISuspense & Lazy LoadingServer ComponentsReact RouterPerformance (memo, useMemo, useCallback)Error BoundariesComponent Composition PatternsJSX

TypeScript90%

GenericsInterfaces & TypesUtility Types (Partial, Pick, Omit, etc.)Type Guards & NarrowingDiscriminated UnionsDecorators

Angular90%

SignalsStandalone ComponentsNew Control FlowDeferrable ViewsZoneless Change DetectionAngular DevToolsAngular CDKKendo UISSR

Architecture & Patterns

Dependency Injection85%

Hierarchical InjectorsInjection TokensProviders (useClass, useValue, useFactory)Multi-ProvidersResolution modifiers

SOLID, KISS, DRY Principles80%

State Management

Redux85%

RxJs80%

Hot / Cold ObservablesswitchMap / mergeMap / concatMap / exhaustMapdebounceTime / throttleTimeshareReplay / sharecombineLatest / withLatestFromtakeUntil / takecatchError / retryBehaviorSubject / Subject / ReplaySubject, AsyncSubject

NgRx80%

NGXS75%

Styling & UI

SASS85%

Bootstrap85%

Tailwind CSS85%

BEM80%

Angular Material80%

Kendo-UI80%

Styled Components80%

LESS80%

Backend & APIs

REST85%

WebSockets70%

GraphQL60%

PHP50%

WordPress75%

WooCommerce65%

Node.js (Express, Nest)50%

MySQL50%

NoSQL50%

Quality & Optimization

Web Accessibility80%

Browser APIs80%

Web Performance Optimization80%

LighthouseCore Web VitalsChrome DevTools ProfilingCritical Rendering Path CRP

SEO75%

Meta Tags & Open GraphStructured Data (JSON-LD)Sitemap & Robots.txtServer-Side Rendering / SSGSemantic HTML for SEOCanonical URLs

Web Workers / Service Workers70%

Background Threading (Web Workers)Offline Caching StrategiesPush NotificationsBackground SyncpostMessage / Message ChannelsService Worker Lifecycle (install, activate, fetch)

PWA70%

Testing

Jest/Jasmine75%

Cypress50%

Playwright50%

Tools & DevOps

Git90%

Branching Strategies (Git Flow, trunk-based)Merge Conflict ResolutionCherry-pick

ESLint/Prettier85%

Claude AI85%

AI-Assisted DevelopmentPrompt EngineeringDebugging with AICode Review & RefactoringClaude Code / CLI ToolsSDD (Spec Driven Development)

Vite80%

Webpack75%

Docker40%

Next.js75%

D3 JS70%

CI/CD70%

Nx / Monorepo60%