Blockchain Developer
Wateen is Pakistan’s leading information and communications technology company with a diverse portfolio of customers across industries. A pioneer in the telecommunications industry, Wateen is proud to have laid the foundation of Pakistan’s internet connectivity with the fastest-growing fiber-optic network.
Wateen is credited with transforming the landscape of communications technology in Pakistan through our efforts to revolutionize businesses with cutting-edge technology. With the country’s largest team of highly experienced certified resources, our subject matter experts ensure end-to-end support uniquely optimized for businesses and enterprises across various verticals.
Position Summary
We are seeking an experienced Blockchain Developer with strong Node.js expertise and proven experience in blockchain development, specifically with Ethereum and Polygon networks. The ideal candidate will be responsible for developing and maintaining blockchain-integrated backend systems, smart contracts, and ensuring smooth interaction between traditional backend services and blockchain networks.
Location
Lahore
Key Responsibilities
- Design, develop, and maintain scalable backend services using Node.js and related frameworks
- Architect and implement blockchain integration solutions for Ethereum and Polygon networks
- Develop, test, and deploy smart contracts using Solidity
- Implement secure wallet integration and transaction management systems
- Optimize gas consumption and transaction costs across multiple chains
- Collaborate with frontend developers to ensure seamless dApp functionality
- Participate in code reviews and maintain high code quality standards
- Debug production issues and optimize application performance
- Document technical specifications and API documentation
Required Skills
- Strong proficiency in Solidity and smart contract development
- Experience with Web3.js or Ethers.js libraries
- Thorough understanding of blockchain concepts, consensus mechanisms, and DeFi protocols
- Expertise in developing and consuming RESTful APIs
- Proficiency with database technologies (MongoDB, PostgreSQL)
- Experience with version control systems (Git)
- Strong understanding of cryptography and blockchain security best practices
Education & Experience
- Bachelor’s degree in Computer Science, Engineering, or related field
- 3+ years of experience in backend development using Node.js
- 1+ years of hands-on experience with Ethereum and Polygon blockchain development