503 Blockchain Engineer jobs in India

• Design, develop, test, and deploy secure and robust smart contracts on various blockchain platforms (e.g., Ethereum, Polygon, Solana).
• Write high-quality, well-documented, and efficient code using languages like Solidity, Rust, or Go.
• Collaborate closely with product managers, architects, and other engineers to define smart contract requirements and specifications.
• Conduct thorough code reviews and security audits to identify and mitigate vulnerabilities in smart contracts.
• Develop and maintain smart contract testing frameworks and integrate them into CI/CD pipelines.
• Optimize smart contracts for gas efficiency and performance.
• Stay up-to-date with the latest developments and best practices in blockchain technology and smart contract development.
• Contribute to the overall architecture and design of decentralized applications.
• Research and evaluate new blockchain technologies and protocols.
• Troubleshoot and resolve issues related to smart contract deployment and execution.
• Mentor junior blockchain developers and share knowledge across the team.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related quantitative field.
• 5+ years of professional software development experience, with at least 2-3 years specifically focused on blockchain and smart contract development.
• Proficiency in Solidity, Rust, Go, or other smart contract programming languages.
• Deep understanding of blockchain fundamentals, consensus mechanisms, and cryptography.
• Experience with popular blockchain frameworks and tools (e.g., Truffle, Hardhat, Web3.js, Ethers.js).
• Strong knowledge of smart contract security best practices and common vulnerabilities.
• Familiarity with decentralized finance (DeFi) protocols and concepts.
• Excellent problem-solving, analytical, and debugging skills.
• Ability to work independently and effectively in a fully remote team environment.
• Strong communication and collaboration skills.

• Lead the development and implementation of smart contracts for diverse blockchain applications.
• Write clean, efficient, secure, and well-documented code in Solidity or other smart contract languages.
• Design and architect decentralized applications (dApps) from a smart contract perspective.
• Conduct rigorous testing, auditing, and optimization of smart contracts to ensure security and performance.
• Collaborate with product managers, designers, and other engineers to define and implement new features.
• Stay up-to-date with the latest advancements in blockchain technology, smart contract development, and security vulnerabilities.
• Identify and mitigate potential risks and security exploits in smart contract code.
• Deploy and manage smart contracts on various blockchain networks (e.g., Ethereum, Polygon).
• Troubleshoot and debug issues related to smart contract execution and blockchain integration.
• Mentor junior blockchain developers and contribute to technical discussions.
• Contribute to the overall technical strategy and roadmap for blockchain initiatives.
• Research and evaluate new blockchain protocols and tools.
• Develop technical documentation and best practice guidelines.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5+ years of experience in software development, with a minimum of 3 years focused on blockchain and smart contract development.
• Expertise in Solidity programming language and experience with the Ethereum Virtual Machine (EVM).
• Strong understanding of blockchain fundamentals, including cryptography, consensus mechanisms, and distributed ledger technology.
• Experience with common smart contract development frameworks (e.g., Hardhat, Truffle).
• Familiarity with web3 libraries (e.g., web3.js, ethers.js).
• Experience with decentralized finance (DeFi) protocols is highly desirable.
• Proficiency in at least one backend programming language (e.g., Node.js, Python, Go).
• Excellent problem-solving, analytical, and debugging skills.
• Strong communication and teamwork abilities, suitable for a remote collaborative environment.
• Experience with security auditing tools and practices for smart contracts.

• Design, develop, test, and deploy secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, BSC, Polygon).
• Write clean, well-documented, and performant code in languages like Solidity, Rust, or Vyper.
• Implement and integrate decentralized applications (dApps) with smart contracts.
• Conduct thorough security audits and vulnerability assessments of smart contracts.
• Optimize smart contract gas usage and transaction performance.
• Collaborate with front-end developers to integrate dApps with back-end blockchain infrastructure.
• Participate in code reviews and provide constructive feedback to peers.
• Stay up-to-date with the latest developments, trends, and best practices in blockchain technology and smart contract development.
• Research and recommend new tools, technologies, and methodologies to improve development processes.
• Contribute to the overall architecture and design of blockchain solutions.

• Bachelor's degree in Computer Science, Engineering, or a related field; Master's degree is a plus.
• Minimum of 5 years of experience in software development, with at least 3 years focused on blockchain and smart contract development.
• Proficiency in smart contract programming languages (Solidity, Rust, Vyper).
• Strong understanding of blockchain fundamentals, cryptography, and decentralized systems.
• Experience with blockchain development frameworks (e.g., Hardhat, Truffle) and testing tools.
• Familiarity with decentralized finance (DeFi) protocols and concepts.
• Excellent problem-solving, analytical, and debugging skills.
• Strong communication and collaboration skills, with experience working in agile environments.
• Understanding of security best practices for smart contracts.

• Design, develop, and deploy secure and efficient smart contracts on various blockchain platforms.
• Write high-quality code in languages such as Solidity, Rust, or Vyper.
• Develop decentralized applications (dApps) and integrate them with smart contract backends.
• Conduct thorough security audits and vulnerability assessments of smart contracts.
• Implement gas optimization techniques to reduce transaction costs.
• Collaborate with product teams and frontend developers to define and implement dApp features.
• Stay current with blockchain technology trends, security best practices, and industry developments.
• Contribute to the architectural design and technical roadmap of blockchain initiatives.
• Troubleshoot and resolve issues related to smart contracts and dApps.
• Mentor junior blockchain engineers and contribute to knowledge sharing.

• Bachelor's degree in Computer Science, Engineering, or a related quantitative field.
• 5+ years of experience in software development, with a strong focus on blockchain and smart contract development.
• Proficiency in smart contract programming languages (Solidity strongly preferred).
• Deep understanding of blockchain fundamentals, including consensus mechanisms, cryptography, and distributed systems.
• Experience developing and deploying smart contracts on major platforms (Ethereum, EVM-compatible chains).
• Familiarity with dApp development frameworks and tools (e.g., Hardhat, Truffle, Web3.js).
• Knowledge of common smart contract vulnerabilities and security best practices.
• Experience with version control systems (e.g., Git).
• Excellent problem-solving, analytical, and debugging skills.
• Strong communication and teamwork abilities.

• Design, develop, and implement core blockchain protocol features and upgrades.
• Write efficient, secure, and well-documented code in languages such as Go, Rust, C++, or similar.
• Optimize blockchain network performance, scalability, and transaction throughput.
• Contribute to research and development of new consensus mechanisms and distributed ledger technologies.
• Identify and address security vulnerabilities within the blockchain protocol.
• Collaborate with smart contract developers and application engineers to ensure seamless integration.
• Participate in code reviews, design discussions, and architectural decisions.
• Troubleshoot and resolve complex technical issues related to the blockchain network.
• Stay current with advancements in blockchain technology, cryptography, and distributed systems.
• Develop and maintain technical documentation for the blockchain protocol.
• Contribute to the overall technical roadmap and strategy of the blockchain infrastructure.
• Work closely with the QA team to ensure thorough testing and validation of protocol changes.
• Mentor junior engineers and share knowledge within the team.
• Evaluate and recommend new technologies and tools for protocol development.

• Bachelor's or Master's degree in Computer Science, Electrical Engineering, or a related technical field.
• Minimum of 6 years of professional software engineering experience, with a strong focus on distributed systems and/or blockchain protocol development.
• Proven experience in developing and maintaining blockchain protocols or related infrastructure.
• Expertise in at least one low-level programming language (e.g., Go, Rust, C++).
• Deep understanding of cryptography, network protocols, and consensus algorithms (e.g., PoW, PoS, PBFT).
• Familiarity with database technologies and distributed storage solutions.
• Excellent problem-solving, analytical, and debugging skills.
• Strong understanding of system architecture and design principles.
• Ability to work independently and collaboratively in a team environment.
• Excellent communication and interpersonal skills.
• Experience with performance tuning and optimization of distributed systems is a significant advantage.

SOLANA BLOCKCHAIN ENGINEER (RUST) (Paid)

Role Overview

Job Title: Solana Blockchain Engineer - Smart Contracts & Settlement Infrastructure

Company: GoQuant Technologies Inc.

Location: Remote 

Employment Type: Full-time

Start Date: Immediate

Primary Responsibilities

Smart Contract Development (60%)

- Design and implement Solana programs using Rust and Anchor framework

- Build perpetual futures contracts with dynamic funding rates (1-second calculation, hourly payment)

- Develop position management system supporting up to 1000x leverage with robust liquidation mechanics

- Implement collateral vaults, margin calculations, and PnL tracking

- Create ephemeral wallet authority system with on-chain permission management

- Build settlement batching mechanisms for high-throughput trade execution

Settlement Infrastructure (30%)

- Develop transaction batching and relayer services for efficient on-chain settlement

- Implement Merkle tree verification for trade batch integrity

- Build wallet transaction signing infrastructure for automated settlement

- Create monitoring systems for failed settlements and automatic retry logic

- Design and implement program-controlled vaults with secure custody patterns

Integration & Testing (10%)

- Integrate with Pyth/Switchboard price oracles for mark price and funding rates

- Build comprehensive test suites (unit, integration, and on-chain testing)

- Deploy and maintain programs on Solana devnet/testnet/mainnet

- Performance optimization for high-frequency trading scenarios

- Documentation of smart contract architecture and settlement flows

Key Technical Challenges

- Performance: Handle 100+ trades/second with sub-second settlement latency

- Security: Manage user funds non-custodially with multiple safety mechanisms

- Scalability: Batch thousands of trades efficiently to minimize transaction costs

- Risk Management: Build real-time liquidation systems that protect protocol solvency

- UX: Enable fast trading via ephemeral wallets while maintaining security

Required Qualifications

Technical Skills:

- 3+ years of professional Rust development experience

- 1+ years building on Solana (programs deployed to mainnet preferred)

- Strong understanding of Solana's programming model (accounts, PDAs, CPIs, rent)

- Experience with Anchor framework for Solana program development

- Proficiency with cryptographic signatures and wallet transaction signing

- Deep knowledge of blockchain fundamentals (consensus, finality, state management)

DeFi Experience:

- Understanding of perpetual futures mechanics (funding rates, leverage, liquidations)

- Experience with DeFi protocols (DEXs, lending, derivatives)

- Knowledge of oracle integration patterns

- Familiarity with common DeFi security patterns and vulnerabilities

Software Engineering:

- Strong systems programming background

- Experience with concurrent/parallel programming

- Ability to write clean, well-tested, production-quality code

- Comfortable working in fast-paced startup environment

- Self-directed with strong problem-solving skills

Preferred Qualifications

- Experience building settlement/relayer infrastructure for DEXs

- Knowledge of dark pool or institutional trading mechanics

- Contributions to open-source Solana projects

- Experience with Solana web3.js, anchor-ts, or similar SDKs

- Background in smart contract security auditing

- Familiarity with TypeScript/Node.js for off-chain components

- Understanding of market maker systems and order book mechanics

- Previous work on high-leverage or derivatives protocols

- Experience with program upgrades and migration strategies

• Design and implement blockchain protocols and decentralized applications.
• Develop secure and efficient smart contracts using relevant programming languages.
• Contribute to the research and development of new blockchain technologies.
• Ensure the security, scalability, and performance of blockchain networks.
• Collaborate with cross-functional teams in a remote setting.
• Participate in code reviews and contribute to high-quality code standards.
• Troubleshoot and resolve complex technical issues related to blockchain systems.
• Stay up-to-date with the latest advancements in blockchain and cryptography.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• Proven experience in blockchain development and smart contract programming.
• Proficiency in Solidity, Rust, or other relevant smart contract languages.
• Strong understanding of distributed systems, cryptography, and consensus mechanisms.
• Experience with major blockchain platforms (e.g., Ethereum, Bitcoin, etc.).
• Excellent problem-solving, analytical, and debugging skills.
• Ability to work independently and collaboratively in a remote team environment.

• Lead the design and development of scalable and secure blockchain applications.
• Write efficient, well-documented, and auditable smart contracts using languages like Solidity.
• Develop and maintain decentralized applications (dApps) and their backend infrastructure.
• Collaborate with product teams and stakeholders to translate business requirements into technical solutions.
• Mentor and guide a team of blockchain developers, fostering a collaborative and productive environment.
• Conduct thorough code reviews, performance tuning, and security audits for blockchain implementations.
• Research and evaluate new blockchain technologies, tools, and frameworks.
• Troubleshoot and resolve complex technical issues in production environments.
• Contribute to the overall technical strategy and roadmap for blockchain initiatives.

• Bachelor's degree in Computer Science, Engineering, or a related field; Master's preferred.
• Minimum 5 years of experience in software development, with at least 3 years focused on blockchain technologies.
• Proficiency in Solidity and experience with Ethereum-based development.
• Strong understanding of blockchain concepts, including cryptography, consensus mechanisms, and DLTs.
• Experience with web3.js, ethers.js, or similar libraries.
• Familiarity with front-end frameworks (React, Angular, Vue.js) and backend technologies.
• Experience with testing frameworks for smart contracts (e.g., Hardhat, Truffle).
• Excellent problem-solving skills and the ability to work independently and as part of a team.
• Strong communication and interpersonal skills.

• Design, develop, and implement secure and efficient smart contracts on various blockchain platforms (e.g., Ethereum, Solana, Polygon).
• Build and maintain decentralized applications (dApps) and backend services for blockchain integrations.
• Write clean, well-tested, and maintainable code using languages such as Solidity, Rust, Go, or Node.js.
• Collaborate with product managers, designers, and other engineers to define project requirements and technical solutions.
• Conduct thorough code reviews and security audits to ensure the integrity and safety of blockchain protocols and applications.
• Research and evaluate new blockchain technologies, frameworks, and tools to drive innovation.
• Optimize blockchain solutions for performance, scalability, and cost-efficiency (e.g., gas optimization).
• Troubleshoot and resolve complex technical issues in distributed systems and smart contracts.
• Stay informed about the latest advancements and trends in the cryptocurrency and blockchain industry.
• Contribute to the overall technical strategy and architectural decisions for blockchain initiatives.
• Document technical designs, APIs, and protocols clearly and comprehensively.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related technical field.
• Minimum of 6 years of experience in software development, with at least 3-4 years focused on blockchain development.
• Proficiency in smart contract programming languages like Solidity, Rust, or Vyper.
• Strong understanding of blockchain fundamentals, consensus algorithms, and cryptography.
• Experience with blockchain platforms such as Ethereum, BSC, Polygon, or Solana.
• Familiarity with Web3 libraries (e.g., Web3.js, Ethers.js) and development tools (e.g., Truffle, Hardhat).
• Experience with decentralized storage solutions (e.g., IPFS) and oracles.
• Excellent analytical, problem-solving, and debugging skills.
• Strong communication and collaboration skills, with the ability to work effectively in a hybrid team.
• Experience with version control systems (e.g., Git) and agile development methodologies.