Blockchain Developer

CloudPSO

Solidity Developer building secure smart contracts for CloudPSO, an IT outsourcing company. Designing reward, airdrop, staking, and multi-chain infrastructure across EVM networks.

Posted 8/18/2026full-timeRemote • Texas • 🇺🇸 United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates expertise in Solidity smart contract development, focusing on security, gas optimization, and integration with backend systems. Proficient in collaborating with cross-functional teams to enhance wallet flows and transaction logic.

Highest-signal resume keywords

Solidity DevelopmentSmart Contract SecurityGas OptimizationHardhatEthers.js

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

SoliditySmart Contract DevelopmentGas OptimizationEVM InternalsUpgradeable ContractsMerkle Proof SystemsSignature-Based ValidationRole-Based PermissionsEvent IndexingTransaction Lifecycle Handling

Soft Skills

CollaborationCommunication

Tools & Technologies

HardhatEthers.jsOpenZeppelinTypeScriptGit

Industry Keywords

EVM ChainsEthereumPolygonArbitrumBaseWeb3Airdrop InfrastructureHigh-Volume Transaction SystemsSecurity AuditsAccount Abstraction

Tech Stack

Tools & technologies

JavaScriptRustSolidityTypeScriptWeb3

About the role

Key responsibilities & impact

Design and develop Solidity smart contracts for reward distribution, airdrop claim systems, referral and staking logic, and wallet eligibility verification
Implement secure claim mechanisms using Merkle proof systems, signature-based validation, and role-based permissions
Optimize contracts for gas efficiency, 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

Requirements

What you’ll need

3+ years of Solidity development experience
Strong experience with Hardhat, Ethers.js, OpenZeppelin, and TypeScript
Deep understanding of smart contract security, gas optimization, EVM internals, and upgradeable contracts
Experience deploying and maintaining contracts on EVM chains such as Ethereum, Polygon, Arbitrum, and Base
Experience integrating smart contracts with backend and off-chain systems
Familiarity with event indexing, transaction lifecycle handling, and wallet authentication flows
Strong Git and collaborative development workflow experience
Nice to have: experience with account abstraction, EIP-712 signatures, relayers/gasless transactions, and staking or reward systems
Nice to have: previous work on airdrop infrastructure, high-volume transaction systems, Web3 analytics or campaign tooling, and security audits
Nice to have: Rust or Solana ecosystem familiarity

Benefits

Comp & perks

Medical insurance
Company gadgets
Paid time off
Stock options (ESOP)
Competitive salary and benefits package
Opportunities for professional development and growth
Collaborative and innovative work environment
Chance to work on cutting-edge cloud projects
Supportive and inclusive company culture