Front-End Developer (React/Next.js)

SigmaSoftware2

Kyiv, Kyiv city, Ukraine Remote permanent

Posted: May 13, 2026

Required Skills

Job Description

Are you passionate about creating sleek, high-performance web applications? We are looking for a Middle Front End Developer with expertise in React and Next.js to join our team.

At Sigma Software, we build cutting-edge solutions for global customers, combining innovation with high-quality delivery. Joining us means working alongside talented professionals, contributing to impactful projects, and enhancing your skills in a supportive environment.

Why join us? You’ll work with modern technologies, enjoy flexible work arrangements, and be part of a company that values both professional growth and work-life balance.

• Develop, maintain, and enhance frontend applications using React and Next.js
• Collaborate closely with UI/UX designers, backend developers, and product managers to deliver high-quality features
• Write clean, scalable, and maintainable code following best practices
• Participate in code reviews and provide constructive feedback
• Optimize application performance and ensure responsive design across devices
• Contribute to the continuous improvement of development processes and tools

• 3+ years of commercial experience in frontend development
• Strong proficiency in JavaScript (ES6+)
• Solid hands-on experience with React and Next.js
• Experience integrating REST APIs into frontend applications
• Understanding of state management libraries (Redux, Context API, etc.)
• Strong knowledge of HTML5 and CSS3, including responsive design principles
• Upper-Intermediate level of spoken and written English

WILL BE A PLUS

• Experience with TypeScript
• Familiarity with testing frameworks (Jest, Playwright, etc.)
• Knowledge of performance optimization techniques for frontend applications
• Understanding of backend basics (Node.js is a plus)

PERSONAL PROFILE

• Proactive and detail-oriented approach to development
• Passion for creating intuitive, user-friendly interfaces
• Comfortable working in cross-functional teams
• Ability to adapt quickly to new technologies and requirements

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