Full Stack Developer (Blockchain)

HKE Holdings; Hong Kong; On-site; HKD 480,000 - 960,000; Full time

Job summary

HKE Holdings is seeking a Full-stack developer to build digital asset wallets and custody systems in Hong Kong. You will own end-to-end development from wallet management to on-chain transactions and asset reconciliation, collaborating with product, risk, and QA teams.

You will optimize security, reliability, and performance while addressing operational issues and regulatory considerations affecting wallet operations and compliance.

Qualifications

• Bachelor's degree or above in Computer Science or related fields.
• 3+ years of software development experience.
• Proficiency in Go or Java backend and React or Vue frontend.
• Familiarity with MySQL and Redis; understands concurrency, idempotency, and data consistency.
• Familiarity with blockchain and digital asset wallet technologies.
• Experience with AI-assisted development tools for coding, debugging, testing.
• Awareness of regulatory policies affecting digital assets and wallet operations.

Responsibilities

• Analyze requirements, design solutions, and develop full-stack wallet systems.
• Collaborate with product, risk control, and QA for integration and delivery.
• Optimize security, stability, and performance; resolve operational issues.

Skills

Full-stack development

Go

Java

React

Vue

Concurrency control

Data consistency

Code review

Education

Bachelor's degree or above in Computer Science or related fields

Tools

Go

Java

React

Vue

MySQL

Redis

Blockchain tech

AI-assisted development tools

Job description

We are looking for a Full-stack developer for digital asset wallets and custody systems!

Responsibilities:

• Responsible for requirements analysis, solution design, and full-stack development of wallet systems, covering wallet management, on-chain transactions, and asset reconciliation.
• Collaborate with product, risk control, and QA teams to complete system integration, functional verification, and delivery.
• Continuously optimize system security, stability, and performance, promptly identifying and resolving operational issues.

Requirements:

• Bachelor's degree or above in Computer Science or related fields, with 3+ years of software development experience.
• Proficiency in backend languages such as Go or Java and frontend frameworks like React or Vue, with end-to-end full-stack development and independent delivery capabilities.
• Familiarity with MySQL and Redis, solid understanding of concurrency control, idempotency, and data consistency, along with strong system troubleshooting and exception-handling skills.
• Familiarity with blockchain and digital asset wallet technologies, including cold/hot wallets, address and key management, transaction signing, and on-chain confirmation mechanisms.
• Practical experience with AI-assisted development tools for coding, debugging, and testing, with the ability to review and verify generated code.
• Ability to track and understand regulatory policies related to digital assets and wallet operations, and identify their impacts on business workflows and technical implementations.