Senior Blockchain Engineer - Remote & Flexible Hours

BairesDev; Colombia; On-site; COP 282,300,000 - 470,500,000; Full time

Benefits offered by this job

Remote work 100%

USD or local currency pay

Home office setup

Flexible hours

Parental leave & holidays

Global multicultural team

Mentorship & growth opportunities

Job summary

BairesDev is seeking a Senior Blockchain Engineer to design and build secure on-chain systems and decentralized infrastructure. You will lead production-grade smart contracts, DApps, and scalable RPC services while ensuring security and high performance.

Join a fully remote global team, collaborate with cross-functional partners, and work with Ethereum/Cosmos SDK, Solidity or Rust, and Web3 libraries to deliver enterprise-grade blockchain solutions.

Qualifications

• 5+ years of experience in software engineering focused on blockchain.
• Proficiency in Solidity or Rust (Solana, NEAR).
• Experience with Ethereum or Cosmos SDK.
• Experience with ERC standards (20,721,3643) and Web3 libraries.
• Hands-on building DApps, RPC services, and tokenization solutions.
• Business-level English.

Responsibilities

• Architect and deploy production-grade smart contracts and DApps.
• Design secure protocols for tokenization, DeFi, and wallet-driven workflows.
• Develop and maintain RPC services and messaging systems to support distributed networks.
• Ensure longevity and security of on-chain systems through testing and optimization.
• Collaborate with cross-functional teams to integrate decentralized logic with enterprise services.

Skills

Blockchain development

Solidity

Rust

Ethereum/Cosmos SDK

Web3 libraries

DApps & RPC services

English proficiency

Job description

BairesDev is seeking a Senior Blockchain Engineer to design and build secure on-chain systems and decentralized infrastructure. You will lead production-grade smart contracts, DApps, and scalable RPC services while ensuring security and high performance.

Join a fully remote global team, collaborate with cross-functional partners, and work with Ethereum/Cosmos SDK, Solidity or Rust, and Web3 libraries to deliver enterprise-grade blockchain solutions.