What Jobs are available for Decentralized Applications in Hong Kong?

Key Responsibilities:

• Collaborate with senior developers to design, build, and deploy secure blockchain solutions and smart contracts.
• Assist in writing, testing, and debugging smart contracts primarily on Ethereum.
• Participate in code reviews and team discussions on best practices, security, and emerging technologies.
• Support the integration of cryptocurrency payment systems into our applications.
• Conduct research on new blockchain technologies and industry trends.
• Document development processes and maintain project documentation.
• Learn and implement best practices in cryptography, consensus algorithms, and decentralized systems.

Required Qualifications & Experience:

• Bachelor's degree in Computer Science, Information Systems, Engineering, or a related field.
• 3-5 years of professional development experience, preferably gained within a bank, investment firm, or other relevant financial/business environment.
• Basic knowledge of one or more programming languages such as Solidity, Rust, JavaScript, Python, or Java.
• Familiarity with blockchain platforms (e.g., Ethereum, Hyperledger Besu, Solana).
• Understanding of blockchain fundamentals, cryptocurrencies, and decentralized applications (dApps).
• Experience with AWS cloud services (e.g., ECS) and containerization (e.g., Kubernetes).
• Knowledge of microservices architecture and Domain-Driven Design.
• Proficiency with Git for version control.

Responsibilities

• Lead the research and development of blockchain wallet infrastructure, including requirement analysis and technical roadmap planning.
• Design, develop, upgrade, and optimize wallet core services and system architecture, solving complex technical challenges.
• Integrate with multiple blockchain networks to support deposits and withdrawals of new tokens, while ensuring the efficiency and accuracy of key modules such as fund aggregation and fee estimation.
• Maintain and monitor full blockchain nodes, keeping up-to-date with network upgrades and announcements to ensure the stability and reliability of the wallet system.
• Explore and research cutting-edge blockchain wallet technologies, such as Multi-Party Computation (MPC), and evaluate emerging blockchains and ecosystems.

Requirements

• Education:
  Bachelor's degree or above in Computer Science, Software Engineering, Cryptography, or related disciplines.
• Experience:
  Minimum 3 years of professional experience in blockchain technology or related fields.
• Technical Skills:
  Proficiency in Go, Java, Solidity, or other relevant programming languages; solid understanding of common data structures and algorithms.
• Strong interest in blockchain infrastructure; prior experience in the blockchain industry and knowledge of cryptography is highly preferred.
• Soft Skills:
  Excellent teamwork, communication, and problem-solving abilities.

Who We Are

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles:
We Before Me
,
Do the Right Thing
, and
Get Things Done
. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.

About the Opportunit

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• e.Collaborate with product and marketing teams to define and implement technical solutions for the public chain and provide necessary technical suppor

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Perks & Benef**

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• ionComprehensive insurance coverage for employees and their dependa
• ntsMore that we love to tell you along the proce

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We're looking for an experienced AND brilliant Solidity engineer to join our Dev team. You will be in charge of taking our execution platform in DEFI to the next level. You will play a crucial role in the success of Anboto platform and everything you do will matter.

Tasks

• Help guide our overall strategy through design, prototyping, and market research.

• Design, develop, program, test, debug, deploy and maintain smart contracts code for Anboto.

• Evaluate and evolve scalability, security, performance and gas optimization.

• Keep up to date with the latest trends and developments in the DEFI space

• Participate in the overall structure design of our decentralized application platform and the optimization and improvement of security, performance, and incentive algorithms

• Responsible for the daily operation and maintenance of decentralized applications to ensure the stable operation of the production system 24/7 hours

• Overseeing the work of the blockchain developer Junior

Requirements

Requirements and Qualifications

• 5+ years of experience in full-stack web and at least 1+ year Smart Contracts development

• Bachelor degree or above in computer science or engineering

• Good understanding of Ethereum and Solidity

• Realized projects in Solidity or other DLTs

• Experience with at least one of the following programming languages: Java, Nodejs, Python, Golang, Rust

• Strong desire to learn about the latest Blockchain technologies and products

• Strong knowledge of DEFI trading in general & flashbots in particular

• Good communication and expression skills in English. A team player with solid execution ability.

• 3+ years experience architecting or developing for blockchain/DeFi projects, white hat hacking, or bug hunting

• 3+ years experience working with Solidity and Web3 tools (Hardhat, Truffle, etc.)

Bonus Experience

• Experience in DEFI Market Making

• Full stack abilities (e.g. data management, server architecture…)

• Understand and hands-on experience in applied cryptography

• Have tinker with software/hardware to understand things under the hood and to break things

Benefits

What's in it for you

• Competitive salary

• Significantly above market rate equity compensation package

• Additional equity bonuses through meritocratic reward mechanisms

• Option to get paid in crypto

• Help build the future of the crypto industry

• Remote working - travel and work from anywhere in the world

• Paid travel - team on-sites in different parts of the world, several times a year (if COVID permits it.)

We're looking forward to learning more about you. Please forward us your resume, LinkedIn or Github profile and we will be in touch shortly with the next steps.

Amber Group is a global leading digital asset company providing crypto financial services to both institutional and high-net-worth investors globally.

We offer best-in-class liquidity solutions and cutting-edge trading infrastructure across major exchanges, applications, and networks. With over $1 trillion in cumulative trading volume, our deep liquidity helps power the digital asset ecosystem.

Beyond trading, our full-suite of offerings includes wealth management, lending and investing products. But at our core, we focus on building strong relationships and delivering personalized service to help clients navigate this fast-growing industry.

At Amber, security is our #1 priority. We have invested years of effort and millions of dollars in cybersecurity, crypto-security, and operational security across the firm, with industry-leading certifications like SOC 2 Type II and ISO 27001.

Powered by a 400+ team of traders, technologists and engineers operating 24/7 globally, our technology and research capabilities are world-class. Yet we remain entrepreneurial, always seeking fresh ideas and risks worth taking. We are always interested in people who have an appetite for taking calculated risk, demonstrate a high level of original thinking and intellectual curiosity.

Role and Responsibilities:

• Design and develop smart contract on Solidity or related technologies
• Write high-performance blockchain code and ultra-low latency systems (Golang, Rust)
• Analyze massive data and improve internal blockchain algorithms and related systems
• Able to continuously apply new blockchain-related technologies and solve challenging tasks in a fast pace
• Work closely with other teams on blockchain research and development

Requirements:

• Understanding blockchain/smart contract technology is a priority
• Proficiency in at least one programming language such as (Typescript), Go, Rust, C++
• Knowledge of network architecture and Dev Ops skills is preferred
• Team-work effectively with the direction of the team
• Bachelor's degree or above from a reputable school, more than 2 years of development experience
• Experience in popular and pracitcal software enigineering SDLC is preferred
• Proficient in high-performance programming and algorithms, have a good mathematical foundation
• Possess good communication, understanding, and expression skills, and can actively promote R&D forces to complete product R&D

Amber Group
opens its doors to the curious problem solver empowered to make an impact in shaping tomorrow. As a hyper-growth company since day 1, we continually invite talent to join our diverse, nimble and digitally-native teams. If this sounds like you, apply now, or get in touch with us today

URGENTLY HIRING

Blockchain Developer / Senior

Location: Hong Kong

YOU MUST have experience in building tokenized vaults using ERC4626 and ERC7540 standards
:

• Smart Contract Development
  : Proficiency in Solidity and experience with Ethereum smart contracts.
• Understanding of ERC Standards
  : Familiarity with ERC4626 (tokenized vaults) and ERC7540 (tokenized revenue), including their use cases and implementation.
• DeFi Knowledge
  : Experience in decentralized finance (DeFi) protocols, particularly with vaults and yield-generating strategies.
• Version Control and Collaboration Tools
  : Proficiency in using Git and platforms like GitHub for collaboration.

Role:

• You will play a key role in designing, developing, and deploying smart contracts on the Ethereum platform. Your work will contribute to the overall architecture and functionality of our blockchain solutions, ensuring security, scalability, and efficiency.

Qualifications:

• Experience: At least around 3-5 years of experience in blockchain development with a strong focus on
  Solidity
  .
• Proficiency in
  Ethereum
  : In-depth understanding of the Ethereum ecosystem and its tools

Nice to Have:

• Protocol Engineering Experience: Familiarity with blockchain protocols and consensus mechanisms.
• Previous experience working at a start-up environment is a big plus.

Our client is a cryptocurrency exchange company with global footprint with over 100 million customers. They're looking for a Frontend & Mobile Developer based in Hong Kong to design and implement cutting-edge artificial intelligence solutions.

Key Responsibilities

• Lead the design, development, and maintenance of robust, cross-platform mobile applications using React Native, taking features from concept to deployment.
• Build seamless user experiences by implementing and integrating RESTful APIs and WebSocket connections for efficient and real-time data exchange.
• Ensure exceptional app quality by profiling and optimizing application performance, responsiveness, and usability for a global user base.
• Leverage your deep understanding of the React Native bridge to work with native modules when necessary, ensuring smooth interoperability between iOS and Android.
• Champion software quality by writing clean, maintainable code, developing comprehensive unit and end-to-end tests, and actively participating in peer code reviews.
• Work closely with product managers, designers, and other engineers in a cross-functional team to define, design, and deliver new features that meet business objectives.

Job Requirements

• Minimum 3 years of experience developing mobile applications using React Native.
• Proficient in JavaScript/TypeScript and React.
• Experience in native iOS (Swift/Objective-C) and/or Android (Java/Kotlin) development.
• Strong understanding of RESTful API integration and WebSocket communication.
• Experience bridging React Native with native code or modules.
• Familiarity with version control systems, particularly Git.
• Knowledge of unit testing (e.g., Jest) and end-to-end testing (e.g., Detox).
• Familiarity with modern architecture patterns and state management (e.g., Redux).
• Experience with AI code generation tools. (e.g. Amazon Q Developer, github copilot , aider)

Please email your cv directly in word format with job reference no. JOB – 15470 to commerce-

Please note that due to the high number of applications only shortlisted candidates will be contacted. If you do not hear from us in the next 5 business days we regret to inform you that your application for this position was unsuccessful.

Our client is a cryptocurrency exchange company with global footprint with over 100 million customers. They're looking for a Frontend & Mobile Developer based in Hong Kong to design and implement cutting-edge artificial intelligence solutions.

Key Responsibilities:

• Lead the design, development, and maintenance of robust, cross-platform mobile applications using React Native, taking features from concept to deployment.
• Build seamless user experiences by implementing and integrating RESTful APIs and WebSocket connections for efficient and real-time data exchange.
• Ensure exceptional app quality by profiling and optimizing application performance, responsiveness, and usability for a global user base.
• Leverage your deep understanding of the React Native bridge to work with native modules when necessary, ensuring smooth interoperability between iOS and Android.
• Champion software quality by writing clean, maintainable code, developing comprehensive unit and end-to-end tests, and actively participating in peer code reviews.
• Work closely with product managers, designers, and other engineers in a cross-functional team to define, design, and deliver new features that meet business objectives.

Job Requirements:

• Minimum 3 years of experience developing mobile applications using React Native.
• Proficient in JavaScript/TypeScript and React.
• Experience in native iOS (Swift/Objective-C) and/or Android (Java/Kotlin) development.
• Strong understanding of RESTful API integration and WebSocket communication.
• Experience bridging React Native with native code or modules.
• Familiarity with version control systems, particularly Git.
• Knowledge of unit testing (e.g., Jest) and end-to-end testing (e.g., Detox).
• Familiarity with modern architecture patterns and state management (e.g., Redux).
• Experience with AI code generation tools. (e.g. Amazon Q Developer, github copilot , aider)

Please email your cv directly in word format with job reference no. JOB –
15470
to commerce-

Please note that due to the high number of applications only shortlisted candidates will be contacted. If you do not hear from us in the next 5 business days we regret to inform you that your application for this position was unsuccessful.

About DW Global Sourcing Limited:
DW Global Sourcing Limited is a Hong Kong-based leader in connecting premium products with global markets. We specialize in consumer electronics, luxury goods, automotive components, electric vehicles (EVs), renewable energy solutions, and sustainable products. Our efficient supply chain ensures fast, cost-effective deliveries while reducing carbon emissions, contributing to a sustainable future.

Role Overview:
We are seeking a skilled Blockchain Web Developer to design, develop, and maintain our blockchain-based carbon credits trading platform. This platform aims to enhance transparency, efficiency, and accessibility in carbon credit transactions, supporting global sustainability efforts. The ideal candidate will possess strong blockchain technical skills and a passion for environmental impact.

Key Responsibilities:

• Blockchain Development:
  Design and implement blockchain solutions for tokenizing carbon credits, ensuring secure and transparent transactions.
• Platform Enhancement:
  Develop and maintain features that facilitate efficient trading and tracking of carbon credits.
• Smart Contract Management:
  Create and audit smart contracts to automate processes such as issuance, trading, and retirement of carbon credits.
• Collaboration:
  Work closely with cross-functional teams to integrate blockchain solutions with existing systems and align with business objectives.
• Security and Compliance:
  Ensure all blockchain applications adhere to security best practices and regulatory standards, maintaining data integrity and user privacy.

Qualifications:

• Experience:
  Proven experience in blockchain development, particularly in creating and managing smart contracts and decentralized applications (DApps).
• Technical Skills:
  Strong proficiency in blockchain platforms such as Ethereum, Hyperledger, or similar; experience with tokenization standards (e.g., ERC-20, ERC-721); familiarity with cryptographic protocols and consensus mechanisms.
• Web Development:
  Solid understanding of web development technologies (HTML, CSS, JavaScript) and frameworks; experience in integrating blockchain solutions with web interfaces.
• Problem-Solving:
  Ability to troubleshoot complex issues and optimize blockchain performance.
• Communication:
  Excellent verbal and written communication skills, with the ability to collaborate effectively with team members and stakeholders.
• Education:
  Bachelor's degree in Computer Science, Information Technology, or a related field.

Preferred Qualifications:

• Industry Knowledge:
  Understanding of carbon credit markets and environmental sustainability initiatives.
• Certifications:
  Relevant blockchain certifications or training.
• Experience:
  Prior experience in developing blockchain solutions for carbon credit platforms or similar applications is a plus.

Why Join DW Global Sourcing Limited?

• Be part of a forward-thinking company committed to sustainability and innovation.
• Work on cutting-edge blockchain projects with real-world environmental impact.
• Collaborate with a dynamic team of professionals passionate about technology and sustainability.
• Competitive compensation and opportunities for professional growth.

Application Process:
Interested candidates are invited to submit their resume and a cover letter detailing their relevant experience and interest in blockchain technology and sustainability to

DW Global Sourcing Limited is an equal-opportunity employer.
We celebrate diversity and are committed to creating an inclusive environment for all employees.