React JS Developer

Role Overview

As a React JS Developer at Nineleaps, you will build modern, scalable, and high-performing web applications that deliver exceptional user experiences. You’ll work closely with designers, product managers, and backend engineers to turn ideas into intuitive interfaces and reliable frontend systems. This role is ideal for someone who enjoys solving UI challenges, optimizing performance, and contributing to products that create measurable business impact.

Key Responsibilities

• Develop, test, and maintain scalable web applications using React.js
• Collaborate with designers, product managers, and backend engineers to build user-centric features
• Write clean, maintainable, and efficient code following modern frontend best practices
• Optimize applications for speed, performance, and scalability
• Participate in code reviews, design discussions, and team knowledge-sharing initiatives
• Debug and troubleshoot issues across the frontend stack
• Ensure responsive, consistent, and high-quality user experiences across devices and browsers
• Stay up to date with emerging frontend technologies and bring fresh ideas to the team

What We’re Looking For

• 4+ years of professional experience in frontend development
• Strong proficiency in React.js and JavaScript (ES6+)
• Solid understanding of HTML5, CSS3, and responsive design principles
• Experience with state management libraries such as Redux or Context API
• Familiarity with RESTful APIs and frontend-backend integration
• Experience using version control systems such as Git
• Strong debugging and problem-solving skills
• Excellent communication and teamwork abilities
• Experience with TypeScript in large-scale applications is a plus
• Familiarity with GraphQL is preferred
• Understanding of frontend performance optimization and accessibility standards is an advantage
• Experience working in Agile or cross-functional teams is beneficial

About Nineleaps

Nineleaps is a technology company specializing in digital engineering, data, and AI. We work with businesses across industries to solve complex challenges through modern technology and create an environment where people can learn fast, take ownership, and build meaningful careers while doing it.