All active Ruby on Rails roles based in Hong Kong.
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Apply to OKX
Please note that Hong Kong is a group-level service hub, and OKX does not carry on a business of operating a virtual asset trading platform in Hong Kong.
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We are hiring for a leading digital asset platform providing brokerage, exchange, and custody services for institutional and professional investors. Renowned for its commitment to regulatory compliance, it operates under one of the first virtual asset trading licenses issued by Hong Kong’s Securities and Futures Commission (SFC). Its offerings include over-the-counter (OTC) trading, RFQ (Request-for-Quote) services, and electronic trading solutions.
The Director of Trade and Treasury Operations will be responsible for establishing and managing the company’s global trade and treasury framework in both digital and fiat currency to ensure secure, efficient, and compliant operations across on-/off-ramp, trading settlement, and cross-border payments. Reporting directly to senior management, this role oversees daily trading and transaction management, fund execution, liquidity and position monitoring, as well as risk control, while continuously optimizing settlement pathways to enhance capital efficiency and safety.
In this role, you will:
You might thrive in this role if you have:
Ready to apply?
Apply to Hyphen Connect Limited
About the Company
A leading Asia-Pacific energy retailer and one of the few licensed Virtual Power Plant (VPP) operators. With 150+ staff in Australia, 80+ engineers in mainland China, and a
functional HQ in Singapore, the company runs a live VPP platform that trades kWh with retail customers via IoT meters. In 2026, the business will launch a tokenized energy ecosystem through a new Hong Kong entity, targeting a Nasdaq listing within 2–3 years.
Role Overview
You will be the first blockchain engineer, responsible for auditing VPP IoT data, designingon-chain architecture, and deploying secure, scalable smart contracts. You will work closely
with IoT engineering (mainland China) and the Product Lead to deliver a production-ready tokenized energy system.
Key Responsibilities
● Audit VPP IoT data feeds and implement Chainlink or equivalent proof-of-reserve systems
● Design and deploy mint/burn vault (ERC-20/ERC-721) on-chain
● Build smart contract architecture for kWh → token conversion
● Lead security audit (CertiK or equivalent) and gas optimization
● Hire and mentor Solidity developers to build and maintain the platform
● Integrate with Hong Kong payment rails and compliance systems
● Document technical roadmap for staking, governance, and cross-chain
Required Qualifications
● 5+ years in blockchain engineering; 3+ years in RWA/DeFi/Institutional platforms
● Shipped RWA vault with real-world asset backing
● Expert in Solidity/Rust, Hardhat, Foundry, and Chainlink oracles
● Experience with IoT → on-chain data pipelines
● Fluent in Mandarin (daily syncs with engineering team)
● Eligible to work in Hong Kong
Preferred Qualifications
● Rust/CosmWasm experience
● Prior work in energy or carbon credit tokenization
● Familiarity with HKMA stablecoin sandbox and local regulatory environment
Why Join?
You will build the core infrastructure that turns physical electrons into tradable digital
assets — the future of real-world blockchain.
Ready to apply?
Apply to Hyphen Connect Limited
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