Senior Node.js Engineer
Senior Node.js Engineer
22
Mumbai
Job Views:
Created Date: 2026-01-16
End Date: 2026-03-28
Experience: 3 - 5 years
Salary: 70000
Industry: Crypto
Openings: 1
Primary Responsibilities :
Job Description (JD)
Position: Senior Node.js Engineer
Location: Madurai, Tamil Nadu, India (Onsite)
Experience Required: 5+ Years
Employment Type: Full-time
About the Company
KoinBX is a centralized cryptocurrency exchange founded in India and operating successfully for over six years. With a strong focus on security, transparency, and usability, KoinBX enables users worldwide to trade digital assets confidently. As a leader in the Web3 ecosystem, KoinBX continues to innovate and build scalable financial technology platforms.
About the Engineering Team
The Engineering team at KoinBX builds high-performance, secure, and scalable platforms that power next-generation digital finance products. The team thrives on solving complex technical challenges and delivering impactful solutions in the Web3 space.
Role Overview
As a Senior Node.js Engineer, you will be responsible for designing, building, and maintaining scalable backend systems and APIs. You will play a key role across the full software development lifecycle while collaborating closely with cross-functional teams to deliver secure and reliable products.
Perks & Benefits
Challenging and innovation-driven work environment
Opportunity to work with highly skilled engineering professionals
Team events and celebrations
Transparent, merit-based, and growth-oriented career path
Experience Requirements:
Key Responsibilities
Design, develop, and maintain RESTful APIs and backend services using Node.js and TypeScript
Build scalable and robust solutions following industry best practices and design patterns
Work with SQL and NoSQL databases such as MySQL, MongoDB, and Redis
Implement secure authentication and authorization mechanisms
Participate in requirement analysis, system design, development, testing, and deployment
Write clean, maintainable, and well-documented code
Collaborate with frontend engineers, product managers, and QA teams
Troubleshoot, debug, and optimize application performance
Stay current with emerging trends in Node.js, TypeScript, and backend technologies
Required Technical Skills
5+ years of professional backend development experience with a strong focus on Node.js and TypeScript
Strong experience with Express.js and/or NestJS
Proficiency in TypeScript for building scalable applications
Solid understanding of RESTful API design principles
Hands-on experience with asynchronous programming (Promises, Async/Await)
Experience with databases: MySQL, MongoDB, Redis
Strong understanding of web application security principles (authentication, authorization, encryption)
Professional Competencies
Excellent problem-solving, analytical, and debugging skills
Strong communication and cross-team collaboration abilities
Ability to work independently in a fast-paced environment
Ownership mindset with attention to quality and performance
Why Join
Be part of one of India’s fastest-growing blockchain technology companies
Contribute to the future of cryptocurrency and Web3 innovation
Build global, customer-facing technology products
Work in a performance-driven culture focused on ownership and innovation
Gain exposure to cutting-edge technologies and challenging projects
High visibility within the global blockchain ecosystem