3,319 Blockchain Professionals jobs in India

Job Summary:

The Blockchain Developer is responsible for designing, implementing, and supporting distributed blockchain-based networks. This role involves analyzing business requirements, developing secure smart contracts, integrating blockchain protocols, and ensuring system scalability and reliability. The ideal candidate has strong experience in blockchain frameworks, cryptography, and decentralized application (dApp) development.

Key Responsibilities:

• Design and develop blockchain solutions, smart contracts, and decentralized applications (dApps).
• Build and maintain blockchain protocols, consensus algorithms, and distributed ledgers.
• Write efficient, secure, and maintainable code for blockchain applications.
• Integrate blockchain solutions with existing systems and third-party APIs.
• Collaborate with product managers, UX designers, and backend teams to deliver complete solutions.
• Perform security audits of smart contracts and blockchain infrastructure.
• Research and evaluate new blockchain technologies, frameworks, and tools.
• Optimize blockchain architecture for scalability, performance, and cost-efficiency.
• Troubleshoot, debug, and upgrade blockchain applications as needed.
• Stay current with emerging blockchain trends, standards, and security practices.

Key Skills & Competencies:

• Proficiency in blockchain frameworks such as Ethereum, Hyperledger Fabric, Polygon, or Solana.
• Strong experience with smart contract development using Solidity , Rust , or Go .
• Hands-on experience with Web3.js , Ethers.js , or similar libraries.
• Knowledge of cryptography , consensus algorithms , and distributed systems .
• Experience with Node.js , Python , or JavaScript/TypeScript for backend development.
• Familiarity with DeFi , NFTs , and token standards (ERC-20, ERC-721, ERC-1155).
• Understanding of DevOps tools and cloud platforms (AWS, Azure, GCP) for blockchain deployment.
• Strong problem-solving, analytical, and debugging skills.
• Ability to work collaboratively in an agile environment.

Education & Experience:

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or related field.
• Experience in building and deploying blockchain-based applications or smart contracts.
• Blockchain certifications (e.g., Ethereum Developer, Certified Blockchain Professional) are a plus.

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Your primary responsibility will be analysing requirements, designing blockchain technology around a certain business model, and the building and launching of a blockchain network.

Responsibilities

• Research, design, develop, and test blockchain technologies
• Brainstorm and help evaluate applications for new tools and technologies as they continually evolve
• Maintain and extend current client- and server-side applications responsible for integration and business logic
• Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals
• Document new solutions as well as maintaining that of existing ones

Skills

• Strong software development background
• Experience working with large codebases
• Experience working with open-source projects
• Proficiency in one of the following languages: C++, Java, JavaScript
• Strong knowledge of common algorithms and data structures
• Familiarity with basic cryptography
• Familiarity with P2P networks
• Strong knowledge of bitcoin-like blockchains
• Strong knowledge of concurrency and writing efficient and safe multithreaded code
• Familiarity with Qt framework and widgets

Join a fast-paced blockchain engineering team focused on building secure and compliant decentralized systems. Responsible for smart contract development, protocol-level integrations, and core blockchain services.

Key Responsibilities:

· Design and develop smart contracts using Solidity with a focus on compliance and secure transaction handling.

· Extend Ethereum-compatible clients by developing custom protocol hooks in Java.

· Build and maintain integrations between blockchain components and backend microservices.

· Write well-tested, secure, and auditable on-chain and off-chain code.

· Participate in smart contract security audits and implement best practices to mitigate vulnerabilities.

· Monitor transaction workflows, ensuring consistency, traceability, and compliance across services.

· Collaborate with cross-functional teams including backend, DevOps, QA, and Product.

· Maintain detailed documentation and follow version control best practices.

· Continuously contribute to improvements in blockchain design, performance, and reliability.

Must-Have Skills:

· Proficiency in Solidity and Ethereum.

· Experience with Java for client-level extensions.

· Knowledge of smart contract security and audit practices.

Nice-to-Have Skills:

· Experience with Node.js.

· Familiarity with blockchain internals and transaction processing.

• Design, develop, and implement secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, Binance Smart Chain).
• Build and maintain decentralized applications (dApps) and related backend services.
• Integrate smart contracts with front-end interfaces and other systems.
• Write comprehensive unit and integration tests for smart contracts and dApps.
• Conduct thorough code reviews and security audits to ensure robustness.
• Research and stay up-to-date with the latest blockchain technologies, protocols, and best practices.
• Collaborate with the product team to define technical requirements and roadmaps.
• Troubleshoot and resolve issues related to blockchain applications and infrastructure.
• Contribute to the overall architectural design of blockchain solutions.
• Work closely with the team in a hybrid environment, participating in both in-office and remote collaboration sessions.

• Design, develop, and implement secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, Solana, Polygon).
• Develop and maintain decentralized applications (dApps) and associated back-end services.
• Write clean, well-documented, and thoroughly tested code.
• Collaborate with product managers, designers, and other engineers to define project requirements and technical specifications.
• Research and integrate new blockchain technologies and protocols.
• Optimize blockchain performance, scalability, and security.
• Conduct code reviews and contribute to architectural decisions.
• Troubleshoot and debug smart contracts and dApp functionalities.
• Stay up-to-date with the latest trends and advancements in the blockchain and cryptocurrency space.
• Contribute to the development of robust testing frameworks for blockchain applications.
• Potentially contribute to open-source blockchain projects.
• Ensure compliance with security best practices in all development activities.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Proven experience as a Blockchain Developer or Software Engineer with a focus on blockchain.
• Strong proficiency in smart contract development languages such as Solidity.
• Experience with blockchain frameworks like Hardhat, Truffle, or Foundry.
• Familiarity with web3.js, ethers.js, or similar libraries for interacting with blockchains.
• Understanding of cryptographic principles and blockchain consensus mechanisms.
• Experience with distributed systems and database technologies.
• Proficiency in one or more general-purpose programming languages (e.g., JavaScript, Python, Go, Rust).
• Excellent problem-solving, analytical, and debugging skills.
• Strong communication and collaboration skills, especially in a remote setting.
• Experience with tokenomics and DeFi protocols is a significant plus.

• Design, develop, and deploy smart contracts and decentralized applications (dApps) on various blockchain platforms (e.g., Ethereum, Binance Smart Chain, Polygon).
• Write efficient, secure, and maintainable code using languages like Solidity, Rust, or Go.
• Integrate blockchain technology with existing systems and applications.
• Research and stay updated on the latest advancements in blockchain technology, cryptocurrencies, and DeFi.
• Collaborate with product managers, designers, and other engineers to define and implement new features.
• Perform code reviews and ensure the quality and security of blockchain solutions.
• Troubleshoot and debug issues related to smart contracts and dApps.
• Develop and maintain comprehensive documentation for blockchain projects.
• Contribute to the architectural design and technical direction of blockchain initiatives.
• Explore and implement innovative use cases for blockchain technology.
• Ensure compliance with security best practices and industry standards in blockchain development.
• Participate in community discussions and contribute to open-source blockchain projects where applicable.

• Proven experience as a Blockchain Developer or similar role.
• Strong understanding of blockchain principles, distributed ledger technology, and consensus mechanisms.
• Proficiency in smart contract development using Solidity for EVM-compatible chains.
• Experience with blockchain frameworks and tools (e.g., Truffle, Hardhat, Web3.js).
• Knowledge of cryptocurrency concepts and the broader crypto ecosystem.
• Familiarity with common blockchain security vulnerabilities and mitigation strategies.
• Experience with API development and integration.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork abilities.
• Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience.
• Experience with other programming languages like JavaScript, Python, or Go is beneficial.
• Understanding of cryptography fundamentals.

• Designing, developing, and deploying secure and efficient smart contracts on platforms like Ethereum, Binance Smart Chain, or other relevant blockchains.
• Developing decentralized applications (dApps) and integrating them with blockchain technology.
• Writing clean, well-documented, and maintainable code in languages such as Solidity, Vyper, or others.
• Understanding and implementing various consensus mechanisms and cryptographic principles.
• Collaborating with front-end developers to integrate dApps with user interfaces.
• Performing code reviews and ensuring the security and integrity of smart contracts and dApps.
• Troubleshooting and debugging blockchain applications and smart contracts.
• Staying up-to-date with the latest advancements and trends in blockchain technology and cryptocurrency space.
• Contributing to the architecture and design of new blockchain projects.
• Ensuring compliance with security best practices and industry standards.
• Participating in the full software development lifecycle, from conception to deployment and maintenance.
• Working with wallets, explorers, and other blockchain-related tools.