Job Description: Blockchain Developer

Company Name: Spark Techwave Innovationz Pvt Ltd
Job Title: Blockchain Developer
Location: Chennai, Tamil Nadu
Experience: 03 Years (Freshers may apply, subject to project requirements)
Employment Type: Full time

About the Company

Spark Techwave Innovationz Pvt Ltd provides recruitment services and technology-focused learning opportunities, connecting skilled professionals with career opportunities across emerging and established technology domains.

Job Summary

We are looking for a motivated Blockchain Developer to design, develop, test, and maintain blockchain-based applications and decentralized solutions. The ideal candidate should have a strong foundation in programming, blockchain fundamentals, smart contracts, and decentralized application (DApp) development.

Key Responsibilities

- Design, develop, and maintain blockchain applications and decentralized solutions.
- Write, test, and deploy smart contracts using Solidity or other relevant blockchain programming languages.
- Develop decentralized applications (DApps) and integrate them with blockchain networks.
- Work with blockchain platforms such as Ethereum, Polygon, Hyperledger Fabric, or other relevant platforms.
- Integrate blockchain applications with backend services and external APIs.
- Implement wallet connectivity and blockchain transaction workflows.
- Perform unit testing, debugging, and smart contract validation.
- Identify potential security vulnerabilities and follow secure coding practices.
- Collaborate with frontend developers, backend developers, QA engineers, and product teams.
- Maintain technical documentation and contribute to code reviews.





Required Technical Skills

- Strong programming knowledge in JavaScript, TypeScript, Python, or another relevant language.
- Understanding of blockchain architecture, distributed ledgers, consensus mechanisms, and cryptographic fundamentals.
- Knowledge of smart contracts and decentralized applications.
- Basic knowledge of Solidity and Ethereum Virtual Machine (EVM) concepts for Ethereum-based roles.
- Familiarity with blockchain transactions, wallets, and public/private keys.
- Understanding of REST APIs and frontend/backend integration.
- Knowledge of Git and software development best practices.
- Strong analytical, debugging, and problem-solving skills.

Preferred Skills

- Hands-on experience with Solidity, Ethereum, or Polygon.
- Familiarity with development tools such as Hardhat, Foundry, Remix, or Truffle.
- Knowledge of Web3.js or Ethers.js.
- Experience integrating wallets such as MetaMask.
- Familiarity with decentralized storage solutions such as IPFS.
- Understanding of smart contract security, access control, and common vulnerabilities.
- Exposure to DeFi, NFTs, tokenization, or DAO applications.
- Knowledge of Hyperledger Fabric or enterprise blockchain platforms is an advantage for enterprise-focused roles.




- Familiarity with automated testing frameworks and blockchain test networks.

Educational Qualification

- B.E./B.Tech, M.E./M.Tech, MCA, or an equivalent qualification in Computer Science, Information Technology, Software Engineering, or a related discipline.
- Relevant blockchain projects, internships, certifications, or practical development experience are advantageous.

Experience Requirements

- Freshers: Candidates with blockchain projects, smart contract development practice, or relevant internships are encouraged to apply.
- Experienced Candidates: 13 years of experience in blockchain application development, smart contract engineering, or DApp development.

Desired Candidate Profile

- Strong interest in blockchain technology and decentralized systems.
- Good programming and problem-solving skills.
- Attention to detail, particularly in security-sensitive code.
- Ability to work collaboratively with cross-functional teams.
- Willingness to learn new blockchain platforms and development tools.

What We Offer

- Opportunities to work on blockchain and decentralized application projects.
- Exposure to modern development tools and blockchain technologies.
- Technical learning and professional development opportunities.
- A collaborative, technology-focused work environment.

How to Apply

Interested candidates can share their updated resume with Spark Techwave Innovationz Pvt Ltd.

Send your resume at [email protected]

Note: Confirm the actual location, salary, experience range, blockchain platform, and project requirements before publishing this vacancy.

📌 Blockchain Developer (India)
🏢 Spark Tech Wave Innovation
📍 India