Software Engineer - MERN Stack (with Blockchain Experience)

Devsinc

Islamabad, Islamabad Capital Territory, Pakistan permanent

Posted: September 25, 2025

Required Skills

Job Description

Devsinc is seeking a skilled MERNN Stack Developer with blockchain experience to join our team. This role involves finalizing sales and driving business growth using. You will work closely with the sales team to develop tailored solutions for clients, leveraging your programming skills to enhance productivity and streamline communication. If you're enthusiastic about technology and have sales aptitude, this is a great opportunity!

Responsibilities:

• Develop and maintain full-stack web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Build and integrate blockchain functionalities (e.g., smart contracts, wallets, tokens) into web applications.
• Work with RESTful APIs and Web3 libraries (e.g., ethers.js, web3.js).
• Participate in code reviews, testing, and deployment.
• Collaborate with UI/UX designers, product managers, and other developers to deliver high-quality features.
• Troubleshoot, debug, and upgrade existing applications.

Requirements:
• React.js – strong experience building modern user interfaces
• Node.js – experience writing scalable server-side code
• Express.js – building RESTful APIs and middleware
• MongoDB – schema design, queries, aggregation pipelines
• Proficiency in JavaScript (ES6+)
• Solid understanding of HTML5, CSS3, and responsive design
• Hands-on experience with Ethereum or similar blockchain platforms
• Basic knowledge of smart contract development using Solidity
• Familiarity with Web3.js or Ethers.js for blockchain interactions
• Understanding of blockchain fundamentals (wallets, transactions, gas, etc.)
• Experience with Git (branching, pull requests, etc.)
• Familiarity with Postman or similar API testing tools
• Basic understanding of Docker and deployment pipelines (CI/CD)
• Strong problem-solving and debugging skills
• Ability to work independently and take ownership of features
• Good communication skills and willingness to collaborate in a team
• Familiarity with Agile or Scrum workflows
• Experience integrating MetaMask or other crypto wallets.
• Exposure to NFT, DeFi, or DAO projects
• Experience with TypeScript
• Use of IPFS, The Graph, or other decentralized tools
• Basic understanding of blockchain security best practices

• -2+ years of professional experience as a full-stack developer.
• Strong proficiency in MongoDB, Express.js, React.js, and Node.js.
• Practical experience with Ethereum, smart contracts (Solidity), or similar blockchain platforms
• Familiarity with Web3 technologies and libraries (e.g., ethers.js, web3.js).
• Knowledge of version control tools (e.g., Git) and CI/CD pipelines.
• Strong problem-solving skills and attention to detail.
• Good communication and teamwork abilities.

Benefits:
Provident Fund, Medical Inpatient Facility, Medical Outpatient Facility, Paid Overtime, In-house Subsidized Lunch & Dinner, Gym Facility, Entertaining Activities, Interest Free Loan Facility, Advance Salaries and Sports Allowance.

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