About the Role

Rather Labs is looking for a Smart Contract Engineer to join our blockchain engineering team and work on secure, production-grade decentralized applications and protocols.

In this role, you will design, develop, test, and review smart contracts across multiple blockchain ecosystems. You will work closely with protocol engineers, auditors, and product teams to build reliable smart contract systems, identify potential vulnerabilities, and ensure best practices in security, architecture, and performance.

This position is ideal for someone who has strong hands-on experience with smart contract development and a deep understanding of DeFi mechanics, security risks, and blockchain infrastructure.

Responsibilities

Design, develop, and maintain smart contracts for DeFi and blockchain-based applications
Review smart contract logic, architecture, and protocol design for security and correctness
Identify potential vulnerabilities, logic flaws, economic attack vectors, and trust assumptions
Write clean, secure, and well-tested smart contract code
Build and maintain automated tests using tools such as Foundry, Hardhat, or Anchor
Perform static analysis, fuzz testing, and symbolic execution where applicable
Work with tools such as Slither, Mythril, Echidna, Halmos, Manticore, Aderyn, Certora, and Tenderly
Analyze DeFi attack vectors, including flash loan attacks, oracle manipulation, MEV, sandwich attacks, price manipulation, and governance risks
Support audit, remediation, and fix-verification processes
Collaborate with engineering teams on deployment flows, upgrade paths, and protocol security
Document technical decisions, implementation details, and security considerations

Requirements

Strong experience with Solidity and EVM-based smart contract development
Experience with Foundry and/or Hardhat
Solid understanding of blockchain architecture, DeFi protocols, token standards, and smart contract security
Ability to write secure, efficient, and maintainable smart contract code
Experience with testing, debugging, and reviewing smart contracts
Understanding of common vulnerability patterns such as reentrancy, access control issues, integer precision problems, oracle risks, and upgradeability issues
Familiarity with OpenZeppelin libraries and secure development practices
Strong analytical thinking and ability to reason about complex protocol logic
Good communication skills and ability to explain technical decisions clearly

Nice to Have

Experience with Rust, TypeScript, or Anchor
Experience building or auditing production DeFi protocols
Familiarity with security tooling such as Slither, Mythril, Echidna, Halmos, Manticore, Aderyn, or Certora
Experience with Ethereum, Arbitrum, Base, Optimism, Solana, NEAR, MultiversX, or other blockchain ecosystems
Knowledge of formal verification, fuzz testing, symbolic execution, or property-based testing
Experience with protocol economics, AMMs, lending protocols, bridges, staking systems, or governance mechanisms

Вакансии в Ratherlabs.co

Вакансии

Smart Contract Engineer

Вакансии в Ratherlabs.co

Вакансии

Smart Contract Engineer