Full Stack Engineer

Company: INDEX Corporation

Salary: Not provided

Location: , United Kingdom

react

Description

• 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.

Requirements

• Strong knowledge of HTML5, CSS3, JavaScript (ES6/7), and TypeScript. • Solid experience with React.js and modern frontend development. • Experience with SASS, Bootstrap, and Tailwind CSS. • Experience with unit testing using Jest. • Good understanding of Git and modern build tools (e.g., Webpack). • Ability to work independently with strong self-organization skills. • Analytical thinking and problem-solving mindset. • Knowledge of Feature-Sliced Design (FSD) architecture is beneficial.

Benefits

• A role with real ownership across frontend, backend, and platform concerns. • Close collaboration with product, design, and marketing teams. • The opportunity to influence performance, SEO, and analytics at a technical level. • A modern tech stack and agile working environment. • A culture that values quality, autonomy, and continuous improvement.

Apply here

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