Frontend Developer (React + Next.js Expert)- (Kolkata Only)

Job Title: Frontend Developer (React + Next.js Expert)

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About Cofinex

Cofinex is a regulated, fast-growing cryptocurrency exchange building a global platform that unites spot, futures, margin trading, crypto cards, and Web3 tools into a single user-focused ecosystem.

We are looking for a highly skilled frontend developer with expertise in React.js, Next.js, Redux, and Tailwind CSS. You will lead the development of web interfaces for trading, wallet management, and onboarding flows. This role is ideal for someone who values performance, security, and clean UI/UX execution.

• Develop responsive and high-performance frontend applications using React.js and Next.js
• Build and maintain reusable components with Redux and Tailwind CSS
• Work with RESTful and WebSocket APIs for real-time data integration
• Translate Figma UI/UX designs into production-ready code
• Optimize interfaces for speed, scalability, SEO, and security
• Collaborate with backend developers, designers, and product managers to ensure seamless delivery
• Participate in code reviews, architecture decisions, and best practice discussions
  

• 2–5 years of experience in frontend development
• Strong hands-on experience with React.js, Next.js, Redux, Tailwind CSS
• Solid understanding of SSR/ISR in Next.js
• Familiarity with REST API and WebSocket integration
• Ability to write clean, modular, and testable code
• Experience with responsive and mobile-first design
• Familiarity with browser debugging and performance tuning
  

• Bachelor's degree in Computer Science, Engineering, or a related field
• Strong problem-solving skills and attention to detail
• Ability to work independently and in cross-functional teams
• Bonus: Experience working on fintech or crypto projects
• Bonus: Exposure to wallet integrations, Web3.js, or blockchain APIs
  

• Be part of the early team of a licensed global crypto exchange
• Flexible work environment (remote or Kolkata HQ)
• Equity/token options for early contributors
• Opportunity to build in a fast-moving Web3 ecosystem
• Work with a passionate, highly motivated founding team

To Apply:

Send your resume and portfolio (GitHub, live links, or relevant work samples) to:

Email:

• Subject Line:

  Frontend Developer – [Your Name]