Senior Front-End Engineer

Our Client is focused on building next-generation e-commerce solutions for global brands, delivering high-performance web applications, Progressive Web Apps (PWA), and hybrid mobile experiences. The team works with modern technologies and advanced architectures to create scalable, fast, and user-centric digital products.

They are looking for a seasoned Senior Front-End Engineer who will combine hands-on development with technical leadership. You will play a key role in designing and delivering large-scale front-end solutions while collaborating closely with distributed teams and stakeholders.

About the Team:

You will join a globally distributed engineering team of 50+ specialists, including developers, architects, and QA engineers based in Europe, working closely with product managers, solution engineers, and sales teams in the U.S.

Key Responsibilities:

• Collaborate with cross-functional teams to align technical solutions with business and client needs
• Lead end-to-end front-end development of large-scale projects and feature enhancements
• Design and implement scalable, high-performance front-end architectures
• Write clean, maintainable, and reusable code with a focus on performance and testing
• Optimize applications for speed and Core Web Vitals (LCP, FID, CLS)
• Mentor junior engineers and contribute to architectural decisions
• Troubleshoot and resolve complex technical issues
• Maintain documentation and track progress using Jira and Confluence

Required Skills and Experience:

• Strong English communication skills (written and spoken)
• Experience working with global teams and client-facing communication
• 5+ years of front-end development experience, including 2+ years in a senior role
• Strong expertise in React, Next.js, and modern JavaScript/TypeScript
• Experience with REST APIs and performance optimization (CDNs, caching, code splitting)
• Solid knowledge of CSS preprocessors (SASS, LESS) and responsive design
• Experience with SSR, static site generation, and build tools (Webpack, Babel)
• Familiarity with CI/CD pipelines and cloud platforms (AWS, Vercel)
• Understanding of e-commerce domain and analytics tools

Nice-to-Have skills:

• Experience with Shopify (custom apps, Hydrogen) or other e-commerce platforms
• Knowledge of Tailwind CSS and modern state management (Redux, Zustand)
• Experience with headless CMS or composable commerce
• Familiarity with Next.js App Router, React Server Components, or edge computing

Work Format:

• Remote, full-time
• Requires partial overlap with EST time zone (evening hours)

In return we offer:

• The friendliest community of like-minded IT-people
• Open knowledge-sharing environment – exclusive access to a rich pool of colleagues willing to share their endless insights into the widest variety of modern technologies.
• Mobilunity Medical Insurance program designed to meet our teams’ needs.
• Paid vacations and sick leaves, including 5 paid days per year that don’t require a sick note.
• Perfect office location in the city center (900m from Lukyanivska metro station with a green and spacious neighborhood) or remote mode engagement: you can choose a convenient one for you, with a possibility to fit together both.
• No open-spaces setup – separate rooms for every team’s comfort and multiple lounge and gaming zones.
• English classes in 1-to-1 & group modes with elements of gamification.
• Neverending fun: sports events, tournaments, music band, multiple affinity groups