INDEX Corporation

Backend Engineer

• Build and maintain React and Next.js components, pages, and application logic.
• Troubleshoot and fix bugs in the existing codebase.
• Identify and resolve UI performance issues (code splitting, memoization, lazy loading).
• Monitor and optimize Core Web Vitals.
• Implement and manage Google Tag Manager (GTM) containers, tags, triggers, and variables.
• Set up and maintain conversion tracking, event tracking, and analytics integrations (GA4, Meta Pixel, etc.).
• Collaborate with marketing on tracking requirements and data layer implementation.
• Debug, QA, and validate tracking implementations across the website.
• Implement technical SEO best practices, including: Schema markup, Meta tags, Sitemap management, Core Web Vitals optimization, Accessibility.
• Contribute to backend and platform development using Python and Ruby on Rails.
• Collaborate on API design, data models, and system integrations.
• Work with PostgreSQL, Redis, and Docker-based environments.

Full Stack Engineer, React, Python, Website, SEO