Solidity Smart Contract Engineer | Security & Oracles

PEOPLE PROFILERS (SERVICES) PTE. LTD.; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

PEOPLE PROFILERS (SERVICES) PTE. LTD. seeks a skilled Smart Contract Engineer to design, develop, and audit robust blockchain contracts, focusing on security, gas optimization, and scalability.

You’ll collaborate with backend teams to integrate on-chain logic with core systems and help ensure reliable deployment. The role requires 2+ years of Solidity experience and deep Ethereum/EVM familiarity, with emphasis on vulnerability mitigation and secure oracle integration.

Qualifications

• Bachelor's degree or above in Computer Science, Engineering, or a related field, paired with 2+ years of dedicated Solidity development experience.
• Deep familiarity with the Ethereum and broader EVM/public blockchain ecosystems.
• Proven proficiency in identifying and mitigating common smart contract vulnerabilities (e.g., reentrancy, integer overflow/underflow, oracle manipulation).
• Prior hands-on experience with formal contract auditing is a strong advantage.

Responsibilities

• Smart Contract Engineering: Design, develop, and audit robust blockchain smart contracts. Ensure all deployed code adheres to the highest industry standards for security, gas optimization, and network scalability.
• Oracle Infrastructure & Data Integration: Architect and implement secure on-chain/off-chain interaction solutions. Build the mechanisms that enable the reliable and tamper-proof delivery of first-party data to on-chain smart contracts.
• Cross-Functional Collaboration: Work closely with the Java backend engineering team to integrate smart contracts with core business systems. Lead end-to-end testing protocols to ensure flawless execution across the entire technology stack.
• Security Research & Documentation: Continuously research emerging attack vectors and implement state-of-the-art vulnerability preventions. Draft and maintain comprehensive technical documentation, architectural guidelines, and precise deployment specifications.

Skills

Solidity development

Smart contract security

Blockchain concepts

Analytical thinking

Education

Bachelor's degree in Computer Science or Engineering

Tools

Web3.js

ethers.js

Chainlink

Job description

PEOPLE PROFILERS (SERVICES) PTE. LTD. seeks a skilled Smart Contract Engineer to design, develop, and audit robust blockchain contracts, focusing on security, gas optimization, and scalability.

You’ll collaborate with backend teams to integrate on-chain logic with core systems and help ensure reliable deployment. The role requires 2+ years of Solidity experience and deep Ethereum/EVM familiarity, with emphasis on vulnerability mitigation and secure oracle integration.