Key Responsibilities

*Develop and maintain the Node.js backend services for the Vault product line, including:

• Execution of yield strategies (such as automated asset allocation across DeFi protocols)
• Real-time monitoring of Vault performance, balances, and yield metrics
• Integration with on-chain smart contracts via Sui RPC/API to handle deposits, withdrawals, and rebalancing operations
• Calculation, allocation, and reporting of fees in Vault operations

*Build robust APIs to support front-end interfaces and third-party integrations with Vault

*Collaborate with smart contract engineers to ensure off-chain logic (such as rebalancing trigger mechanisms) aligns with on-chain constraints

*Implement data pipelines to track key Vault metrics (annualized yield APY, total value locked TVL, user activity) and support data analysis

*Ensure high availability and scalability of backend systems to accommodate Vault growth (such as during peak transaction times)

*Identify and mitigate backend-specific risks (such as strategy execution delays and data consistency issues with on-chain state)

Qualifications and Skills

*Over 2 years of backend development experience using Node.js (with frameworks like Express, NestJS, etc.)

*Experience with DeFi protocols is preferred (Vaults, yield aggregators, or lending platforms) — familiarity with yield strategies, asset rebalancing, or on-chain/off-chain integrators is a plus

*Understanding of fundamental blockchain concepts (transactions, smart contracts, RPC API) with experience in blockchain integration (Sui experience preferred, familiarity with Ethereum/EVM ecosystem also acceptable)

*Proficient in REST/gRPC API design, skilled in using databases (MySQL, PostgreSQL, MongoDB) and caching layers (Redis)

*Experience with message queues (RabbitMQ, Kafka) or event-driven architecture — critical for handling asynchronous operations in Vault

*Strong debugging skills, familiar with monitoring/logging tools (Prometheus, Grafana, ELK)

*Understanding of CI/CD pipelines and infrastructure as code (Terraform, Docker, Kubernetes)

*Ability to collaborate with cross-functional teams to translate product requirements into technical solutions

What We Offer

*Highly competitive salary + token incentives, joining a high-growth DeFi protocol with a total value locked of $700 million.

*Opportunities to engage with cutting-edge blockchain finance business, contributing to building core systems from 0 to 1, with vast potential for impact.

*A technology-driven team environment that encourages innovation and experimentation, rejecting repetitive tasks while focusing on core technological breakthroughs.

*Collaborative team environment working alongside DeFi experts and pioneers in the Sui ecosystem.

Application Method

Please submit your resume, cover letter (focusing on your backend development experience, particularly in DeFi or Vault/yield products), and relevant project links (GitHub, technical blog, or system design). We look forward to welcoming engineers who can combine Node.js expertise with a deep understanding of DeFi!

If you are eager to delve into the blockchain finance space and are excited to build stable and efficient trading infrastructure through technology, we welcome you to join us and explore new possibilities in fintech!