Blockchain Engineer (Web3 Wallet)

TL;DR

Blockchain Engineer (Web3 Wallet): Design, develop, and maintain backend systems for a decentralized hirify.global Wallet, with an accent on on-chain data acquisition, parsing, indexing, and analysis. Focus on integrating blockchain interactions and smart contract flows end-to-end, including architecture, performance tuning, and incident response.

Location: Hong Kong / Remote

Company

hirify.global is a global blockchain ecosystem building digital-asset products and infrastructure for decentralized finance.

What you will do

• Design, develop, and maintain backend systems for Web3 wallet and blockchain-related products.
• Build and optimize services for on-chain data acquisition, parsing, indexing, and analysis.
• Own the full development lifecycle: architecture, coding, testing, deployment, troubleshooting, and performance tuning.
• Collaborate with blockchain engineers and cross-functional teams to integrate new blockchain technologies and on-chain features.
• Investigate and resolve technical issues across product functionality, blockchain interactions, and system stability.
• Participate in on-call rotation and handle emergency incidents for owned systems.

Requirements

• 3+ years of backend software development experience.
• Hands-on experience with Web3, blockchain, or wallet-related development, including on-chain interactions, blockchain data structures, transaction flows, and smart contract integration.
• Strong understanding of blockchain fundamentals and mainstream ecosystems such as Bitcoin and Ethereum.
• Bachelor’s degree or above in Computer Science, Software Engineering, or a related field.

Nice to have

• Experience with Java and related backend frameworks.
• AI-related engineering experience (e.g., LLM applications, model optimization, or agent workflow integration).

Culture & Benefits

• Work-from-home arrangement (may vary depending on business team needs).
• Competitive salary and company benefits.
• Fast-paced projects with autonomy and a flat organizational structure.
• Opportunities for career growth and continuous learning.

Hiring process

• Interviews and evaluations focused on backend and Web3/blockchain experience.
• Technical discussions around on-chain integration and system ownership.