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Seventh Triangle Logo Seventh Triangle · IT - Software Development

Frontend Engineer

India, Noida · Job Posted March 06, 2026
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Job Description

We are looking for a Frontend Engineer who is passionate about building fast, scalable, and maintainable eCommerce experiences using core web technologies. This role is not focused on React, Next.js, or SPA frameworks. You will work deeply with HTML, CSS, SCSS, Vanilla JavaScript, class-based architecture. You’ll be building real product experiences: collection systems, filters, navigation, PDP flows, CRO-driven components, and performance-critical UI.

Job Responsibility

  • Build and maintain custom web components using HTML, SCSS, and Vanilla JavaScript
  • Architect and develop component-driven UI systems without heavy JS frameworks
  • Convert Figma designs into high-quality, production-ready storefronts
  • Write clean, modular, class-based JavaScript for UI behavior and business logic
  • Own theme performance: Core Web Vitals, load strategy, asset optimization, and DOM efficiency
  • Debug complex frontend issues across browsers and devices
  • Actively contribute to improving frontend standards, architecture, and best practices

Requirements

  • Strong experience with: HTML5 (semantic, accessible markup)
  • CSS3 / SCSS (architecture, responsiveness, performance)
  • Vanilla JavaScript (ES6+, class-based design, modular code)
  • Experience with: Responsive and mobile-first development
  • Cross-browser debugging
  • Git-based workflows
  • Performance optimization (Core Web Vitals)
  • 1–4 years of hands-on frontend web development
  • Real experience building production storefronts or web products
  • Bachelor’s degree in Computer Science / IT or related field (preferred)

Nice to have

  • AJAX, Fetch API
  • CRO or high-traffic storefront optimization experience
  • Understanding of accessibility and SEO from a frontend perspective

What we offer

  • Build real engineering-driven storefronts, not template edits
  • Work on CRO, performance, and scalable theme architecture
  • Exposure to complex eCommerce systems and high-impact projects
  • Clear technical ownership and growth path (Senior / Lead Theme Engineer)
  • Opportunity to influence frontend standards and long-term architecture
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