Description :

About the Role :

We are seeking an experienced Blockchain Engineer who can design, develop, and deploy secure, scalable, and high-performance blockchain solutions.

The ideal candidate has deep knowledge of blockchain protocols, smart contract development, cryptographic foundations, distributed system architecture, and hands-on experience with modern Web3 technologies.

This role involves end-to-end blockchain development from protocol-level design to smart contract coding, network setup, security, testing, and integration with backend systems.

Key Responsibilities :

Blockchain Development & Architecture :

- Design and implement blockchain solutions based on Ethereum, Hyperledger, Solana, Polygon, or other networks.

- Develop high-quality smart contracts using Solidity, Rust, Go, or Vyper.

- Build decentralized applications (dApps) with secure, scalable architecture.

- Implement Layer 2 solutions, sidechains, rollups, or interoperability protocols.

Smart Contract Engineering :

- Write secure, gas-optimized smart contracts.

- Conduct smart contract unit testing, integration testing, and QA.

- Perform audits and vulnerability checks (reentrancy, overflow, logic flaws).

- Deploy and manage contracts using tools like Hardhat, Truffle, Foundry, or Brownie.

Blockchain Infrastructure & Nodes :

- Manage blockchain nodes, networks, and infrastructure.

- Set up validators, miners, or staking nodes on public/private chains.

- Monitor and optimize node performance, uptime, and security.

API, Backend & Web3 Integration :

- Integrate blockchain solutions with frontend/backend via Web3.js, Ethers.js or custom APIs.

- Build RESTful/GraphQL APIs for blockchain interactions.

- Implement wallet connectivity, transaction flows, and signing mechanisms.

Security, Compliance & Cryptography :

- Apply best practices in cryptography including hashing, digital signatures, encryption.

- Implement authentication, access control, and key management.

- Ensure compliance with blockchain security frameworks and audit standards.

Performance, Scalability & Optimization :

- Optimize smart contracts for gas usage and performance.

- Implement caching layers, indexing services (The Graph), or scalable data access.

- Work on solutions for high-throughput use cases (DeFi, NFT marketplaces).

Research & Innovation :

- Stay current with latest blockchain protocols, tooling, and industry trends.

- Evaluate new technologies to improve system reliability and performance.

- Create technical documentation, architecture diagrams, and best practices.

Required Skills & Qualifications :

Technical Skills :

Languages : Solidity, Rust, Go, JavaScript/TypeScript, Python.

Blockchain Platforms : Ethereum, Hyperledger Fabric, Solana, Polygon, Avalanche.

Smart Contract Tools : Hardhat, Truffle, Foundry, Ganache, OpenZeppelin.

Web3 Frameworks : Web3.js, Ethers.js, Wagmi, Viem.

Node & Infrastructure : Geth, OpenEthereum, IPFS, Storj, Infura, Alchemy.

Databases : MongoDB, PostgreSQL, Redis, LevelDB.

DevOps/CI : Docker, Kubernetes, Terraform, GitHub Actions.

Strong understanding of cryptographic algorithms, consensus mechanisms, and token standards (ERC20, ERC721, ERC1155, SPL).

Soft Skills :

- Excellent problem-solving and analytical mindset.

- Strong communication and ability to explain complex concepts clearly.

- Ability to work in fast-paced Web3 environments.

- Commitment to clean code, documentation, and teamwork.

Preferred Qualifications :

- Experience in DeFi protocols, NFT platforms, DEXs, wallets, or staking systems.

- Understanding of blockchain scalability solutions (zk-Rollups, Optimistic Rollups).

- Knowledge of Zero-Knowledge Proofs, zk-SNARKs, zk-STARKs.

- Familiarity with cloud platforms (AWS, GCP, Azure).

- Contributions to open-source Web3 projects.

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