· Web Technologies - Core
Web Technologies - Core

Web Technologies - Core

Core web technologies form the essential foundation for all web development, encompassing the trio of HTML, CSS, and JavaScript alongside modern standards like HTML5, CSS3, TypeScript, and ES6+. These skills represent universal building blocks demanded across frontend, backend, mobile, and QA engineering disciplines. JavaScript demonstrates the broadest reach, appearing in 36 different roles with > 60% prevalence in Frontend Development positions and significant presence in E-commerce Backend Development (20%), Frontend Testing & QA (> 15%), and LLM/AI Application Development (> 10%). TypeScript shows rapidly growing adoption at > 25% in frontend roles. HTML and CSS remain fundamental for Frontend Development (> 25% and > 30% respectively) and E-commerce Backend Development (10-25% range). Entry-level opportunities are exceptional across all core web technologies, with JavaScript offering > 60% prevalence, HTML and CSS both > 35%, and TypeScript > 25% in frontend roles. These technologies are not limited to traditional web roles—they increasingly appear in backend microservices, API development, IoT, and even data science contexts, reflecting JavaScript's evolution into a full-stack ecosystem.

All Skills

JavaScript

Very High Demand
Rank: #1
Entry-Level: Very High
Universal programming language for web interactivity and full-stack development. Dominates Frontend Development (> 60%), E-commerce Backend Development (20%), Frontend Testing & QA (> 15%), LLM/AI Application Development (> 10%), and Technical Leadership (> 10%). Appears across 36 different roles including Web Application Backend Development (> 10%), Test Automation (> 10%), iOS Development (< 10%), Android Development (< 10%), and numerous backend specializations. Exceptional entry-level opportunities (> 60% in frontend, > 25% in e-commerce, > 15% in QA). Used for frontend interactivity, Node.js backend services, automation scripts, mobile app development (React Native), and increasingly in ML/AI tooling.

TypeScript

Very High Demand
Rank: #2
Entry-Level: Very High
Statically-typed superset of JavaScript for scalable application development. Strong presence in Frontend Development (> 25%), LLM/AI Application Development (> 10%), iOS Development (< 10%), Frontend Testing & QA (< 10%), and Technical Leadership (< 10%). Appears across 26 roles including Web Application Backend Development (< 10%), mobile, and various backend positions. Excellent entry-level opportunities (> 25% in frontend). Used for enterprise web applications, type-safe APIs, modern frontend frameworks (Angular, React, Vue), and full-stack development with improved maintainability.

HTML

Very High Demand
Rank: #3
Entry-Level: Very High
HyperText Markup Language, the structural foundation of all web content. Most prevalent in Frontend Development (> 25%), E-commerce Backend Development (10%), Frontend Testing & QA (< 5%), and Web Application Backend Development (< 5%). Appears in 19 roles including Technical Leadership (< 5%) and various backend positions. Outstanding entry-level opportunities (> 35% in frontend, 25% in e-commerce). Used for structuring web pages, semantic markup, accessibility, SEO optimization, and as the foundation for all web user interfaces.

CSS

Very High Demand
Rank: #4
Entry-Level: Very High
Cascading Style Sheets for visual presentation and responsive design. Dominates Frontend Development (> 30%), E-commerce Backend Development (> 10%), Frontend Testing & QA (< 5%), and Technical Leadership (< 5%). Found in 16 roles including Web Application Backend Development (< 5%). Exceptional entry-level opportunities (> 35% in frontend, 25% in e-commerce). Used for layout design, responsive interfaces, animations, theming, component styling, and modern CSS frameworks (Tailwind, styled-components).

HTML5

High Demand
Rank: #5
Entry-Level: Very High
Modern HTML standard with enhanced semantic elements and multimedia support. Concentrated in Frontend Development (> 10%), Technical Leadership (< 5%), Frontend Testing & QA (< 5%), and Web Application Backend Development (< 1%). Appears in 10 roles including mobile development. Good entry-level opportunities (> 15% in frontend). Used for semantic web markup, native video/audio, canvas graphics, geolocation, local storage, and progressive web apps.

CSS3

High Demand
Rank: #6
Entry-Level: High
Modern CSS standard with advanced styling and animation capabilities. Specialized to Frontend Development (> 10%), Technical Leadership (< 5%), Frontend Testing & QA (< 1%), and mobile roles. Found in 6 roles. Good entry-level opportunities (> 10% in frontend). Used for flexbox/grid layouts, transitions, animations, transforms, gradients, shadows, and responsive design patterns.

ES6+

Moderate Demand
Rank: #7
Entry-Level: Low
Modern JavaScript standard (ECMAScript 2015+) with enhanced syntax and features. Found primarily in Frontend Development (< 5%), iOS Development (< 1%), Technical Leadership (< 1%), and Android Development (< 1%). Appears in 6 roles. Limited explicit demand but implicitly expected with JavaScript expertise. Used for arrow functions, promises, async/await, classes, modules, destructuring, and modern development patterns.