Senior Solidity Engineer - Remote Multi-Chain Focus

Cloudpso; Pakistan; Remote; PKR 24,972,000 - 41,620,000; Full time

Benefits offered by this job

Medical insurance

Company gadgets

Paid time off

Stock options (ESOP)

Competitive salary and benefits

Job summary

CloudPSO is seeking a Solidity Developer for remote work to design and build the smart contract infrastructure powering reward and distribution systems. You will work with backend engineers, product leadership, and infrastructure teams to create secure, scalable blockchain solutions across multiple EVM networks.

The role emphasizes high ownership in architecture, security, optimization, and real-world Web3 challenges, with collaboration across wallet flows and transaction logic.

Qualifications

• 3+ years of Solidity development experience.
• Strong experience with Hardhat, Ethers.js, and TypeScript.
• Deep understanding of smart contract security, gas optimization, EVM internals, and upgradeable contracts.
• Experience deploying and maintaining contracts on Ethereum, Polygon, Arbitrum, Base.
• Experience integrating smart contracts with backend/off‑chain systems.
• Familiarity with event indexing and transaction lifecycle handling.
• Strong Git and collaborative development workflow experience.

Responsibilities

• Design and develop Solidity smart contracts for reward distribution, airdrop claim systems, referral and staking logic, wallet eligibility verification, Merkle proof systems, signature-based validation, and role-based permissions.
• Optimize contracts for scalability and security.
• Integrate contracts with backend services and event-driven systems.
• Collaborate with backend and frontend teams on wallet flows and transaction logic.
• Conduct internal contract reviews and contribute to security best practices.
• Participate in architecture discussions for multi-chain infrastructure.

Skills

Solidity development

Blockchain architecture

Security best practices

Tools

Hardhat

Ethers.js

TypeScript

Job description

CloudPSO is seeking a Solidity Developer for remote work to design and build the smart contract infrastructure powering reward and distribution systems. You will work with backend engineers, product leadership, and infrastructure teams to create secure, scalable blockchain solutions across multiple EVM networks.

The role emphasizes high ownership in architecture, security, optimization, and real-world Web3 challenges, with collaboration across wallet flows and transaction logic.