Senior Frontend Engineer (React / Next.js) $$$$

We are looking for a Senior Frontend Engineer to join Quintagroup and work on a long-term US-based product in the marketplace analytics domain.

The platform helps analyze marketplace data, track sales trends, and support data-driven product decisions. In this role, you will focus on building and improving the frontend part of a modern web application in close collaboration with a senior US-based engineer and a cross-functional team.

Responsibilities

• Develop and enhance a modern frontend application using React, Next.js, and TypeScript
• Build responsive, scalable, and user-friendly interfaces

• Work closely with a senior engineer on architecture and 

  implementation decisions

• Collaborate with BA, Data Engineers, DevOps, PM, and Architect
• Integrate frontend components with APIs and analytics-related functionality
• Participate in planning, estimation, and technical discussions
• Improve application performance, maintainability, and code quality
• Contribute to engineering best practices and UI consistency

Tech Stack
React, Next.js, TypeScript, REST APIs, AWS

Requirements
 

• 6+ years of commercial experience in frontend development
• Strong hands-on experience with React and TypeScript
• Strong commercial experience with Next.js
• Deep understanding of modern frontend architecture and best practices
• Experience building complex, data-heavy web applications
• Solid experience with REST APIs integration
• Strong knowledge of performance optimization, state management, and reusable component design
• Experience working in distributed teams
• Strong English communication skills, B2+ or higher

Nice to Have
 

• Experience with Node.js
• Experience with AWS
• Familiarity with analytics or marketplace-related products
• Experience collaborating in cross-functional product teams

We Offer

• Flexible working format: fully remote, hybrid, or office-based in Lviv
• Supportive and friendly team environment
• Long-term stable collaboration with an established US client
• Online English classes
• Private healthcare package
• Access to learning and professional development opportunities
• Team-building activities and company perks
• IT Club Loyalty membership