Smart Contract Engineer (Web3)

TL;DR

Smart Contract Engineer (Web3): Building and optimizing core on-chain infrastructure for a leading non-custodial wallet with an accent on account abstraction, security, and protocol integration. Focus on designing secure smart contract architectures, implementing advanced cryptographic protocols, and ensuring system reliability through formal verification and rigorous testing.

Company

hirify.global is a leading non-custodial cryptocurrency wallet providing secure asset management and Web3 access to over 200 million users worldwide.

What you will do

• Design secure smart contract architectures and protocols including chain abstraction.
• Develop and implement smart contracts with a focus on security and account abstraction.
• Research and integrate ZKP, FHE, and MPC protocols into smart contract systems.
• Implement thorough unit, integration, and fuzz testing for all smart contracts.
• Write formal verification for smart contracts using tools like Certora.
• Collaborate with Rust engineers to build robust on-chain infrastructure.

Requirements

• 1+ years of professional experience in smart contract engineering.
• Deep understanding of EVM memory, execution, and Solidity internals.
• Strong knowledge of ERC-4337, ERC-6900, ERC-7579, and EIP-7702 standards.
• Solid foundation in cryptography and security-first development practices.
• Must have the legal right to work in your country of residence.

Nice to have

• Experience with Rust systems programming.
• Knowledge of Solana/SVM and Bitcoin internals.

Culture & Benefits

• Work fully remotely with flexible working hours in a global organization.
• Opportunity to contribute to the world’s leading blockchain ecosystem.
• Access to competitive salary and comprehensive benefits packages.
• Collaborate with diverse, world-class talent in a flat organizational structure.
• Continuous learning and career development opportunities in a fast-paced environment.