Senior Blockchain Engineer — Hybrid, Impactful

Placements24; United States; Hybrid; USD 49,000 - 81,000; Full time

Benefits offered by this job

Competitive pay

Health insurance

Professional development

Generous time off

Hybrid work model

Job summary

Placements24 is seeking a Senior Blockchain Engineer for our client in Mexico City to lead design, development, and deployment of secure smart contracts across Ethereum, Solana, and Polygon. You will work with product teams to craft scalable blockchain features and drive best practices in security and performance.

The role demands 5+ years in software, with at least 3 years in blockchain, proficiency in Solidity, Rust, or Vyper, and hands-on experience with Hardhat/Truffle.

Qualifications

• 5+ years of software development experience.
• At least 3 years focused on blockchain and smart contract development.
• Proficiency in Solidity, Rust, or Vyper.

Responsibilities

• Design, develop, and deploy secure smart contracts on Ethereum, Solana, and Polygon.
• Conduct code reviews, testing, and debugging of blockchain apps.
• Collaborate with cross-functional teams to define and implement blockchain features.
• Contribute to architectural design and technical roadmap of blockchain initiatives.
• Research trends and best practices in blockchain and crypto space.
• Optimize smart contract performance and gas efficiency.
• Develop documentation for contracts, APIs, and architecture.
• Participate in selecting and integrating new blockchain technologies and tools.

Skills

Solidity

Rust

Vyper

Smart contract

Blockchain architecture

API design

Security best practices

Education

Bachelor's or Master's in CS/Engineering

Tools

Hardhat

Truffle

Ganache

Job description

Placements24 is seeking a Senior Blockchain Engineer for our client in Mexico City to lead design, development, and deployment of secure smart contracts across Ethereum, Solana, and Polygon. You will work with product teams to craft scalable blockchain features and drive best practices in security and performance.

The role demands 5+ years in software, with at least 3 years in blockchain, proficiency in Solidity, Rust, or Vyper, and hands-on experience with Hardhat/Truffle.