Senior Backend Blockchain Engineer (Web3/DeFi)

TL;DR

Senior Backend Blockchain Engineer (Web3/DeFi): Developing scalable and low-latency solutions for DEX Trading and high-performance, real-time trading systems for DeFi markets with an accent on architecture and development of on-chain and off-chain components, including smart contracts, indexers, and market-making bots. Focus on designing and optimizing event-driven microservices for real-time blockchain transaction processing and ensuring high availability, reliability, and security of blockchain-based back-end systems.

Location: Hong Kong (Onsite)

Company

hirify.global is a leading proprietary trading firm specializing in digital assets, known for its entrepreneurial and innovative culture.

What you will do

• Develop scalable, low-latency solutions for DEX Trading and real-time DeFi trading systems.
• Contribute to the architecture and development of high-performance on-chain and off-chain components, including smart contracts, indexers, and market-making bots.
• Implement robust APIs and integrate with DeFi protocols, liquidity pools, and decentralized exchanges (DEXs).
• Design and optimize event-driven microservices for real-time blockchain transaction processing.
• Ensure high availability, reliability, and security of blockchain-based back-end systems.
• Collaborate with Quantitative Researchers, Traders, and Software Engineers to identify and implement automation and acceleration strategies for the Digital Assets desk.

Requirements

• BSc, MSc, or PhD in Computer Science, Software Engineering, or related fields.
• 5+ years of commercial experience in software development.
• Strong expertise in one or more back-end programming languages: Python, Rust, Go, or Java.
• Solid experience in DeFi development (protocol interactions, arbitrage, liquidity management).
• Strong blockchain knowledge, including nodes, consensus mechanisms (PoW, PoS), and Web3.
• Experience with smart contract development in Solidity and/or Rust.
• Deep understanding of backend architecture, including scalable distributed systems, microservices, and event-driven processing.
• Hands-on experience with cloud infrastructure (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).

Nice to have

• Experience working with on-chain data analysis, indexers, and oracles.
• Knowledge of MEV (Maximal Extractable Value) strategies and blockchain transaction ordering.
• Prior experience working in low-latency, high-performance trading environment.

Culture & Benefits

• Work in an entrepreneurial and innovative culture, valuing sharp, creative minds.
• Opportunity to leverage your full potential in a high-performance environment.
• Benefit from the best working environment, latest technology, and continuous support.