Here are the fully expanded, highly detailed 500-word LinkedIn job descriptions for roles 8, 9, and 10, crafted specifically for top-tier fintech and supply chain product companies.

Job 8: Blockchain / Smart Contract Engineer (Fintech & Payments)

Location: Gurgaon / Remote

Employment Type: Full-Time

Experience Required: 2–5 Years

Industry-Standard Salary Range: 18 LPA – 30 LPA

About Us & Our Mission

Decentralized finance, digital asset management, and cross-border settlement rails are radically redefining traditional banking architectures. At our core, we are building secure, audited smart contract systems that bridge traditional fintech backend rails with decentralized protocols. Our engineering culture values mathematical verification, uncompromised code safety, rigorous gas optimization, and transparent collaboration. If you want to build the immutable underlying architecture of next-generation financial settlement systems, you will find your technical home here.

The Role & Impact

We are seeking a specialized, hands-on Blockchain / Smart Contract Engineer to take full ownership of our decentralized applications and protocol contracts. In this role, you will design, write, test, and deploy secure smart contracts for payment routing, tokenized assets, and cross-chain settlement workflows. You won't just write code; you will lead security self-audits, establish upgradeability patterns, and ensure seamless synchronization between on-chain execution and our traditional off-chain fintech backend services.

Key Responsibilities & Daily Expectations

- Smart Contract Development: Design, write, and maintain secure, gas-optimized smart contracts using Solidity and frameworks like Hardhat or Foundry.





- Security & Auditing: Conduct rigorous self-audits, unit testing, fuzz testing, and formal verification exercises to eliminate vulnerabilities before mainnet deployment.

- Backend Integration: Build secure APIs and event listeners to synchronize blockchain transaction states with traditional fintech ledger systems and databases.

- Protocol Upgrades: Maintain proxy contracts and implement secure upgradeability patterns without risking user funds or state integrity.

- Cross-Chain Communication: Architect and integrate bridges and messaging protocols for multi-chain asset transfers and settlement rails.

What We Are Looking For (Requirements)

- Experience: 2+ years of professional Web3 and smart contract engineering experience with a verifiable portfolio of mainnet-deployed, audited contracts.

- Technical Mastery: Deep proficiency in Solidity, EVM internals, JavaScript/TypeScript, and development tools like Hardhat, Foundry, and OpenZeppelin libraries.

- Security Mindset: Comprehensive understanding of common smart contract vulnerabilities (reentrancy, front-running, integer overflows) and mitigation strategies.

- System Integration: Solid grasp of backend technologies (Node.js/Python), REST APIs, and interacting with nodes via Web3.js or Ethers.js.

- Education & Traits: Degree in Computer Science or equivalent practical experience, paired with a meticulous eye for detail and high accountability.

What We Offer & How to Apply

- Competitive Package: Industry-leading salary (18–30 LPA) paired with performance bonuses and token/equity options.

- Cutting-Edge Stack: Total freedom to work with contemporary cryptographic tools and bleeding-edge financial tech.

📌 Blockchain / Smart Contract Engineer (Fintech & Payments) (Gurugram)
🏢 HyrEzy Talent Solutions
📍 Gurugram