Вакансія Senior Front-End Engineer

Skills

• React
• Next.JS
• JavaScript
• TypeScript
• Rest API
• CSS
• SASS
• Less
• Webpack
• Babel
• CI/CD
• AWS
• Vercel
• Google Analytics
• GTM
• Shopify
• Hydrogen
• oAuth
• Tailwind
• Redux
• Zustand
• Headless CMS

Опис вакансії

On behalf of our Client from the USA, Mobilunity is looking for a Senior Front-End Engineer.
This company specializes in developing innovative digital solutions for businesses, focusing on modular e-commerce, web performance optimization, and AI-driven retail technologies. They create flexible, API-first architectures that enhance scalability and user experience. Their expertise includes AI-powered recommendations, conversational commerce, and tailored digital experiences across various industries. With a customer-centric approach, they integrate artificial intelligence to drive efficiency and growth.

Responsibilities:

• Collaborate with cross-functional teams (including U.S.-based PMs/sales) to align technical work with client expectations.
• Lead end-to-end development of large-scale projects, including full-site rebuilds and feature enhancements.
• Collaborate with product managers and architects to design and implement scalable front-end solutions aligned with business goals.
• Write clean, reusable code with a focus on performance, testing, and maintainability.
• Optimize applications for speed, scalability, and Core Web Vitals (e.g., LCP, FID, CLS).
• Mentor junior engineers and contribute to architectural discussions around state management, caching, and deployment.
• Troubleshoot and resolve complex technical issues in collaboration with support teams.
• Maintain project documentation and track progress using Jira/Confluence.

Requirements:

• Ability to collaborate effectively with global teams, explain technical concepts to non-technical stakeholders, and participate in client-facing discussions.
• 5+ years of front-end development experience, including 2+ years in a senior role.
• Expertise in React 17+, Next.js, and modern JavaScript/TypeScript.
• Proficiency in REST API integration and performance optimization (CDNs, caching, code splitting).
• Strong knowledge of CSS preprocessors (SASS, LESS) and responsive/mobile-first design.
• Experience with server-side rendering, static site generation, and build tooling (Webpack, Babel).
• Familiarity with CI/CD pipelines, cloud platforms (AWS, Vercel), and testing frameworks.
• Solid understanding of e-commerce concepts and analytics tools (Google Analytics, GTM).
• Level of English – Upper-Intermediate and higher.

Nice to have:

• Experience with Shopify (custom apps, Hydrogen framework, OAuth flows) or other e-commerce platforms (SFCC, BigCommerce).
• Knowledge of utility-first CSS (Tailwind) and modern state management (Redux, Zustand).
• Exposure to headless CMS, composable commerce, or authentication solutions (NextAuth.js).
• Familiarity with Next.js App Router, React Server Components, or edge computing.