Senior Web3 Developer

6 days ago

Bengaluru, Karnataka, India Grayson Talent Full time ₹ 12,00,000 - ₹ 36,00,000 per year

We are seeking a highly skilled Senior Web3 Developer with deep expertise in blockchain protocols, smart contract development, and security practices. The ideal candidate will have hands-on experience across multiple chains and ecosystems, including Aptos, Arbitrum, OKX, Bitcoin Taproot, and strong knowledge of Layer 1 and Layer 2 networks. This role requires proficiency in Solidity and Move for smart contracts, advanced knowledge of bridging and interoperability, and a strong understanding of security threats and mitigation strategies in DeFi.

Key Responsibilities

Smart Contract Development & Deployment

  • Design, develop, and deploy secure smart contracts using Solidity and Move (.move).
  • Implement cross-chain functionality, bridges, and interoperability solutions.
  • Optimize smart contracts for gas efficiency, scalability, and security.

Blockchain Infrastructure

  • Set up, run, and maintain nodes and staking environments across multiple blockchains (L1 & L2).
  • Contribute to protocol integration with Aptos, Arbitrum, OKX, BTC Taproot, and other ecosystems.

Security & Auditing

  • Conduct in-depth smart contract audits, both manual and with tools (e.g., Slither, MythX, Echidna, Foundry).
  • Identify and mitigate vulnerabilities such as diamond attacks, civil attacks, sandwich attacks, MBV (Miner/Maximal Extractable Value) and other exploits.
  • Implement best practices for contract upgradability and secure protocol design.

Zero-Knowledge Proofs & Cryptography

  • Develop and integrate ZK-proof systems for privacy-preserving transactions.
  • Collaborate with researchers and engineers on novel cryptographic solutions.

Collaboration & Documentation

  • Work closely with product, security, and research teams to deliver robust blockchain solutions.
  • Create detailed technical documentation and contribute to internal knowledge sharing.

Skills & Experience

  • 8+ years in software development, including 5+ years in blockchain development.
  • Programming Languages: Solidity, Move (.move), Rust, JavaScript/TypeScript, Python (preferred).
  • Blockchain Expertise: Aptos, Arbitrum, OKX, BTC Taproot, Ethereum, Layer 1 & Layer 2 solutions.
  • Smart Contracts & Security: Strong grasp of bridging, contract patterns, and vulnerabilities (reentrancy, diamond, sandwich, MBV, etc.).
  • Auditing Tools: Familiarity with tools like Slither, MythX, Foundry, Tenderly, Echidna, Certora.
  • Infrastructure: Node setup, validator operation, staking mechanisms, RPC management.
  • Cryptography: Understanding of ZKPs, elliptic curve cryptography, and consensus mechanisms.
  • Problem Solving: Ability to diagnose complex blockchain issues and propose scalable solutions.

Qualifications

  • Bachelor's degree in Computer Science, Software Engineering, or related field (Master's preferred).
  • Prior contributions to open-source blockchain projects.
  • Experience in building or auditing DeFi protocols.
  • Familiarity with bridging protocols (e.g., Wormhole, LayerZero).
  • Experience with rollups, sidechains, and modular blockchain design.
  • Active participation in Web3 communities and hackathons.

  • Web3 Developer Intern

    6 days ago

    Bengaluru, Karnataka, India Teknuova Full time ₹ 4,00,000 - ₹ 12,00,000 per year

    We are currently hiring 3 Web3 Developer Interns to join us in shaping the future of decentralized applications and next-generation blockchain solutions. Were an innovation-driven team exploring how blockchain and Web3 can shape the future of digital products.APPLY HERE: Role OverviewAs a Web3 Developer Intern, youll work with our tech and product teams to...

  • Web3 Engineer

    2 weeks ago

    Bengaluru, Karnataka, India chingari Full time ₹ 15,00,000 - ₹ 25,00,000 per year

    Job Description Skills and expertise youll require React TypeScript Golang Rust C About this Role We are looking for a Web3 Full-Stack developer who will be responsible for designing, implementing, and supporting clean APIs and delightful frontends on cloud infrastructure and in the browser and works closely with designers and fellow engineers to...

  • Senior Web3 Engineer

    4 hours ago

    Bengaluru, Karnataka, India Grayson Talent Full time ₹ 12,00,000 - ₹ 36,00,000 per year

    We are seeking a highly skilled Senior Web3 Engineer with deep expertise in blockchain protocols, smart contract development, and security practices. The ideal candidate will have hands-on experience across multiple chains and ecosystems, including Aptos, Arbitrum, OKX, Bitcoin Taproot, and strong knowledge of Layer 1 and Layer 2 networks. This role requires...

  • Mobile Application Developer

    1 week ago

    Bengaluru, Karnataka, India SecureDApp - Blockchain & Web3 Security Full time ₹ 9,00,000 - ₹ 12,00,000 per year

    Company DescriptionSecureDApp is a blockchain security company specialising in comprehensive security solutions for companies in the web3 space. We focus on identifying vulnerabilities in smart contracts and enhancing the overall security of blockchain networks. SecureDApp ensures ongoing protection, empowering companies with innovative security measures to...

  • Senior Web3 Engineer

    2 days ago

    Bengaluru, Karnataka, India Etta Global Partners Full time ₹ 20,00,000 - ₹ 25,00,000 per year

    We are seeking a highly experienced Senior Web3 Developer with deep expertise in blockchain protocols, smart contract development, and security practices. The ideal candidate will have hands on experience across multiple chains and ecosystems, including Aptos, Arbitrum, OKX, Bitcoin Taproot, and strong knowledge of Layer 1 and Layer 2 networks. This role...

  • Web3 Developer

    2 weeks ago

    Bengaluru, Karnataka, India Grayson Talent Full time ₹ 15,00,000 - ₹ 25,00,000 per year

    The Web3 Engineer / Blockchain Architect is responsible for designing, implementing, and scaling multi-chain blockchain infrastructure and decentralized identity (DID) systems. This role focuses on deep technical expertise across Bitcoin, Ethereum, and Graphene/Steem, delivering secure, scalable, and efficient blockchain solutions aligned with the company's...

  • Web3 Engineer

    4 days ago

    Bengaluru, Karnataka, India Grayson Talent Full time ₹ 7,00,000 - ₹ 12,00,000 per year

    The Web3 Engineer is responsible for designing, implementing, and scaling multi-chain blockchain infrastructure and decentralized identity (DID) systems. This role focuses on deep technical expertise across Bitcoin, Ethereum, and Graphene/Steem, delivering secure, scalable, and efficient blockchain solutions aligned with the company's strategic goals. The...

  • Intern Business Development

    2 weeks ago

    Bengaluru, Karnataka, India CoinDCX Full time ₹ 5,00,000 - ₹ 10,00,000 per year

    The CoinDCX Journey: Building Tomorrow, todayAt CoinDCX, we believe 'CHANGE STARTS TOGETHER'. You are the driving force that will help us make Web3 accessible to all.In the last six years, we have skyrocketed from being India's first crypto unicorn to carrying a community of over 125 million with us. To continue maximising the adoption and acceleration of...

  • Senior Engineering Manager

    1 week ago

    Bengaluru, Karnataka, India CoinDCX Full time ₹ 20,00,000 - ₹ 25,00,000 per year

    The CoinDCX Journey: Building Tomorrow, TodayAt CoinDCX, we believe 'CHANGE STARTS TOGETHER'. You are the driving force that will help us make Web3 accessible to all.In the last six years, we have skyrocketed from being India's first crypto unicorn to carrying a community of over 125 million with us. To continue maximising the adoption and acceleration of...

  • Senior SDET

    2 weeks ago

    Bengaluru, Karnataka, India CoinDCX Full time US$ 1,50,000 - US$ 2,00,000 per year

    The CoinDCX Journey: Building Tomorrow, TodayAt CoinDCX, we believe 'CHANGE STARTS TOGETHER'. You are the driving force that will help us make Web3 accessible to all. In the last six years, we have skyrocketed from being India's first crypto unicorn to carrying a community of over 125 million with us. To continue maximising the adoption and acceleration of...