39 Crypto & Blockchain jobs in Hong Kong

We are hiring for one of our ecosystem projects - a cryptocurrency exchange.

We are looking for a Rust Blockchain Developer to be responsible for designing, implementing, and maintaining blockchain-based solutions, specifically focusing on Solana smart contracts. You will work closely with our development team to enhance our blockchain infrastructure and contribute to various projects.

In this role, you will:

1. Design, develop, and deploy smart contracts on the Solana blockchain.
2. Write efficient, reusable, and reliable code using Rust and Solidity.
3. Collaborate with cross-functional teams to define, design, and ship new features.
4. Conduct code reviews and ensure adherence to best practices for blockchain development.
5. Troubleshoot and optimize existing blockchain solutions.
6. Stay updated with the latest trends and advancements in blockchain technology.

You might thrive in this role if you have:

1. Proven experience in blockchain development, specifically with Solana.
2. Proficiency in Rust and Solidity programming languages.
3. Strong understanding of blockchain architecture and decentralized applications (dApps).
4. Experience in building, testing, and deploying smart contracts.
5. Familiarity with version control systems, such as Git.
6. Excellent problem-solving skills and attention to detail.
7. Strong communication skills and ability to work collaboratively in a remote team environment.
8. Knowledge of cryptography and network security principles.

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Direct message the job poster from Yubo Trading

Job Highlights:

• Your decisions have direct impact on the company’s trading profits
• Excellent numerical sensitivity
• Strong interest and passionate in Cryptocurrency

Company Description/Culture:

• Fast growing tech-driven trading firm in the low-latency / high-frequency arena based in Hong Kong
• A fast-paced, flat structure, dynamic and collaborative team environment.
• Ownership of work from day one and get rewarded for outstanding performance
• Frequent team lunches, pantry full of snacks and drinks, health club memberships, birthday leaves and more.

Job Responsibilities:

• Analyze, monitor and improve existing trading models, algorithms and systems
• Carry out data analysis and mathematical modelling on large sets of time-series data
• Collaborate with fellow Traders and Developers to optimize trading results

Key Requirements:

• Bachelor or Master degree in Computer Science, Physics, Engineering, Mathematics or any other analytical / quantitative related field of study
• 2+ years' working experience at a global quantitative trading / HFT firm, hedge fund or other financial institution
• Excellent analytical and mathematical skills
• Strong Python programming skills and experience of Linux OS

Personality Fit:

• Competitive attitude and eagerness to constantly improve yourself
• Innovative & keen to continuously learn about trading
• Self-directed, quick and decisive thinking and be able to work productively under minimal supervision
• Critical thinking, detail-oriented and prudent
• Excellent communication skills and team spirit
• Ability to act and perform successfully in a fast-moving and high-pressured environment
• Passionate in Trading, Blockchain & Cryptocurrency

• Seniority level Associate

• Employment type Full-time

• Job function Information Technology, Finance, and Other
• Industries Capital Markets, Financial Services, and IT Services and IT Consulting

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Central & Western District, Hong Kong SAR 1 day ago

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We’re partnering with a leading global trading firm to hire a Back-End Blockchain Engineer in Hong Kong. This is a fantastic opportunity to join a high-performance team focused on developing cutting-edge trading systems for the DeFi and digital assets space.

What You’ll Do:

• Build scalable, low-latency systems to support decentralized exchange (DEX) trading.

• Design and develop real-time trading infrastructure for DeFi markets.

• Develop and maintain both on-chain and off-chain components, including smart contracts, APIs, indexers, and trading bots.

• Integrate with DeFi protocols, liquidity pools, and DEX platforms.

• Architect event-driven microservices to process blockchain transactions securely and reliably.

• Collaborate closely with traders, quants, and engineers to automate and optimize trading strategies.

• Contribute protocol-specific expertise and best practices to help grow blockchain capabilities within the team.

What We’re Looking For:

• 5+ years of professional experience in software development.

• Strong skills in back-end programming languages (e.g., Python, Rust, Go, Java).

• Solid experience with DeFi development, including protocol integrations, arbitrage, and liquidity management.

• Deep blockchain knowledge—nodes, consensus mechanisms, and Web3.

• Hands-on experience with smart contract development (Solidity and/or Rust).

• Strong grasp of distributed systems, microservices, and event-driven architecture.

• Familiarity with cloud infrastructure (AWS, GCP, Azure) and containerization (Docker, Kubernetes).

• Understanding of blockchain security best practices (e.g., key management, transaction signing, API security).

• Exposure to real-time data processing tools (Kafka, Redis, gRPC, WebSockets).

• Bonus: experience with on-chain data analysis, MEV strategies, or trading in low-latency environments.

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Engineering and Information Technology
• Industries Staffing and Recruiting and Financial Services

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Central & Western District, Hong Kong SAR 3 weeks ago

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1 week ago Be among the first 25 applicants

Direct message the job poster from VISEO ASIA

We are looking for a versatile Development Lead to design and implement a Stable Coin Platform that utilizes cloud-native infrastructure, microservices architecture, and blockchain technology. The ideal candidate will possess extensive expertise in blockchain technologies, distributed systems, and enterprise-level architectural design. They should be capable of proposing an architecture and have strong communication skills to convey rationale, options, and roadmaps to both internal and external stakeholders, ensuring the retention of a competitive advantage.

Key Responsibilities:

• Design and develop robust blockchain architectures using cloud services.
• Create and optimize token contract implementations across various blockchain platforms, starting with EVM-compatible chains.
• Collaborate closely with custodians and KMS providers to secure the administration and operations of the tokens.
• Develop and optimize smart contract implementations for the core stable coin platform alongside the microservices architecture to integrate with partners, including banks, token KMS providers, custodians, designated dealers, and compliance systems.
• Design secure and high-performance blockchain infrastructure with high availability.
• Optimize the balance between on-chain and off-chain services to minimize costs and meet operational goals.
• Architect scalable microservices that integrate seamlessly with blockchain ecosystems.
• Define and apply state-of-the-art design pattern principles to expedite the development process in alignment with organizational standards and policies.
• Create technical specifications and architectural documentation.
• Ensure quality in development, adherence to risk appetite, standards, and policies.
• Foster a collaborative culture to effectively identify, escalate, mitigate, and resolve risk and compliance matters.
• Collaborate with cross-functional teams to deliver projects on time and in full.

Technical Requirements:

• 10+ years of development experience in microservices architecture, particularly in high-stakes environments, with proven experience in full-stack enterprise architecture within the financial sector.
• Extensive experience with cloud services (ECS, AKS).
• Strong background in microservices architecture.
• 5+ years of experience in blockchain architecture and development.
• Advanced proficiency in smart contract development and a strong understanding of distributed ledger technology.
• Proven track record in managing complex smart contract architectures, addressing versioning, data, and storage migration challenges to ensure traceability and backward compatibility.
• Experience in pentesting programs—preparation, execution, and remediation—for web, back-end, and smart contract security auditing.
• Familiarity with store-and-forward architectures, financial accounting, end-to-end reconciliation, and/or data analytics is a plus.
• Experience with cross-chain bridges and web2-to-web3 bridges is a plus.

Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• Professional certifications in blockchain technologies.
• Strong communication and documentation skills.

• Seniority level Mid-Senior level

• Employment type Full-time

• Industries Banking and IT Services and IT Consulting

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Central & Western District, Hong Kong SAR 2 weeks ago

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Upskills Central & Western District, Hong Kong SAR

Join to apply for the Senior Software Engineer (Web3/Blockchain Application) role at Upskills

Upskills Central & Western District, Hong Kong SAR

2 days ago Be among the first 25 applicants

Join to apply for the Senior Software Engineer (Web3/Blockchain Application) role at Upskills

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Upskills provides expert financial software consulting to investment banks and leading financial institutions in Asia Pacific, Middle East and Europe. With a strong, Front to Back expertise in the cash and derivatives markets, coupled by an in-depth knowledge of financial markets technologies, we provide smart and efficient solutions.

We are seeking a multi-hatted Blockchain Developer to design and implement the Stable Coin Platform that leverage cloud-native infrastructure, micro-services architecture and blockchain technology. The ideal candidate will bring deep expertise in blockchain technologies, distributed systems, and enterprise-level architectural design with key responsibilities given as below:

• Design and develop robust blockchain architectures using AWS cloud services.
  
• Create and optimize token contract implementations across various blockchain platforms, starting with EVM-compatible chains.
  
• Create and optimize smart contract implementation for the core stable coin platform alongside the micro-service architecture to integrate with partners being banks, token KMS providers, custodians, designated dealers and compliance systems.
  
• Design secure and performant high-speed/low-fee blockchain infrastructure with high availability.
  
• Optimize the mix between on-chain and off-chain services to minimize build and run costs as well and to fulfill operational goals.
  
• Architect scalable micro-services that integrate seamlessly with blockchain ecosystems.
  
• Define and apply state-of the art design patterns principles to speed-up development process in line with the Group standards and policies.
  
• Create technical specifications and architectural documentation.
  
• Ensure quality in developments, compliance to risk appetite, standards, and policies.
  
• Develop a culture proper to identify effectively and collaboratively, escalate, mitigate and resolve risk, conduct and compliance matters.
  
• Collaborate with cross-functional teams to deliver the business on time in full.
  
  
  
  

• Master's or Bachelor’s degree in Computer Science, Mathematics, Engineering or related technical discipline.
  
• At least 6-8 years of development experience in micro-services architecture, in highly critical with proven experience with full-stack enterprise architecture in banking/financial industry.
  
• Proven track with blockchain architecture and development experience.
  
• Proficiency in Programming with Solidity, TypeScript/ JavaScript, Go, Python, or Java (for backend micro-services).
  
• Extensive experience with AWS cloud services (ECS, AKS).
  
• Expertise in containerization technologies (Kubernetes).
  
• Advanced proficiency in smart contract development and strong understanding of distributed ledger technology.
  
• Proven track record in managing complex smart contract architecture and the corresponding versioning and data/storage migration challenges to ensure full traceability and backward compatibility.
  
• Experience with pen-testing programs -preparation, execution, remediation- for Web, Back-End and smart contract security auditing.
  
• Experience with store and forward architectures, financial accounting, end-to-end reconciliation and/or data analytics is a plus.
  
• Experience with cross-chain bridges, web2-to-web3 bridges is a plus.
  

• Seniority level Not Applicable

• Employment type Full-time

• Industries IT Services and IT Consulting

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Shenzhen, Guangdong, China CN¥30,000.00-CN¥0,000.00 2 years ago

Shenzhen, Guangdong, China CN 0,000.00-CN 5,000.00 2 years ago

Shenzhen, Guangdong, China CN 5,000.00-CN 0,000.00 2 years ago

Shenzhen, Guangdong, China CN 0,000.00-CN 5,000.00 2 years ago

Shenzhen, Guangdong, China CN 0,000.00-CN 5,000.00 2 years ago

Shenzhen, Guangdong, China CN 2,000.00-CN 9,000.00 2 years ago

Shenzhen, Guangdong, China CN 0,000.00-CN 5,000.00 1 year ago

Shenzhen, Guangdong, China CN 0,000.00-CN 0,000.00 1 year ago

Shenzhen, Guangdong, China CN 2,000.00-CN 8,000.00 2 years ago

Shenzhen, Guangdong, China CN 5,000.00-CN 0,000.00 1 year ago

Shenzhen, Guangdong, China CN 8,000.00-CN 5,000.00 1 year ago

Shenzhen, Guangdong, China CN 5,000.00-CN 0,000.00 2 years ago

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Shenzhen, Guangdong, China CN 0,000.00-CN 5,000.00 1 year ago

Shenzhen, Guangdong, China CN 0,000.00-CN 0,000.00 2 years ago

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Hong Kong, Hong Kong SAR

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.

We are seeking a talented and experienced Blockchain Developer to join X Layer. As a Blockchain Developer, you will be responsible for designing, implementing, and maintaining blockchain-based solutions. Additionally, you will provide support for hackathons to encourage innovation and collaboration within the X Layer community and contribute to the Polygon CDK.

What You’ll Be Doing:

• Blockchain Development: Design, develop, and deploy blockchain solutions. Write clean, efficient, and maintainable code in languages such as Go, Solidity, or Rust, C++ depending on the blockchain platform being used.
• Performance Optimization: Analyze and optimize the performance of blockchain networks, including transaction throughput and latency, to enhance scalability and efficiency.
• Smart Contract Development: Create, test, and deploy smart contracts on various blockchain platforms, ensuring security and efficiency.
• Architecture Design: Collaborate with architects and software engineers to design scalable and secure blockchain architectures that meet business and technical requirements.
• Documentation: Create technical documentation, including design specifications, development guides, and API references, to ensure proper usage and maintenance of blockchain solutions.

What We Look For In You:

• Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
• Proficiency in programming languages such as Go or C++.
• Hands-on experience with blockchain platforms like Ethereum, Cosmos, Bitcoin, EVM or WebAssembly virtual machine.
• Strong problem-solving and analytical skills, with the ability to design and develop efficient blockchain solutions.
• Excellent communication and teamwork skills, with the ability to collaborate effectively with cross-functional teams.

Nice to have:

• Hands-on experience with L2 platforms such as Polygon ZKEvm, ZKSync Era, Linea, Taiko, Scroll, etc.
• Familiar with performance optimization tools such as Gperftools, Profiler, Flamegraph, Pprof, etc., and have experience in performance optimization development in actual projects. Experience in zk GPU acceleration is preferred.
• Familiarity with smart contract development tools and frameworks (e.g., Truffle, Remix, Web3.js).
• Proficiency in programming languages Rust.
• Experience in zero-knowledge proof development, especially zkvm, and familiarity with principles of plonk/halo2/KZG/FRI and related libraries or circuit development languages, such as plonky2, Circum, gnark.

Comprehensive insurance coverage for employees and their dependants.

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2 days ago Be among the first 25 applicants

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We are hiring for one of our ecosystem projects in the digital asset space, we are looking for a Blockchain Developer to design, develop, and implement blockchain-based solutions for a high-performance trading system. The ideal candidate will have expertise in blockchain technologies, smart contract development, and trading system architecture, ensuring secure, scalable, and efficient solutions for decentralized trading applications.

Job Description

• Design and develop blockchain-based trading platforms, including decentralized exchanges (DEX), automated market makers (AMM), or order-book systems.
• Write, test, and deploy secure smart contracts using platforms such as Ethereum, Binance Smart Chain, Solana, or other blockchain networks.
• Integrate blockchain solutions with front-end and back-end systems to enable seamless trading functionality.
• Implement security best practices to protect against vulnerabilities, including reentrancy attacks, front-running, and unauthorized access.
• Optimize smart contracts for gas efficiency and system performance to handle high-frequency trading scenarios.
• Collaborate with cross-functional teams, including traders, product managers, and DevOps engineers, to define system requirements and ensure alignment with business goals.
• Ensure compliance with relevant financial regulations and standards for trading systems.
• Monitor and maintain blockchain nodes, ensuring uptime and reliability of the trading infrastructure.
• Stay updated on emerging blockchain technologies, protocols, and industry trends to enhance system capabilities.
  
  

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent experience).
• 3+ years of experience in blockchain development, with a focus on building decentralized applications (dApps) or trading systems.
• Proficiency in programming languages such as Solidity, Rust, or Go for smart contract development.
• Strong understanding of blockchain protocols (e.g., Ethereum, Solana, Polygon) and consensus mechanisms (e.g., PoW, PoS).
• Experience with trading system concepts, including order matching, liquidity pools, or market-making algorithms.
• Familiarity with DeFi protocols, token standards (e.g., ERC-20, ERC-721), and interoperability frameworks.
• Knowledge of cryptographic principles, including public/private key infrastructure and hashing algorithms.
• Experience with tools like Truffle, Hardhat, or Foundry for smart contract development and testing.
• Understanding of front-end and back-end integration (e.g., Web3.js, Ethers.js, REST APIs).
• Strong problem-solving skills and attention to detail in writing secure and efficient code.
• Excellent communication and collaboration skills to work in a fast-paced, team-oriented environment.
  
  

• Experience with layer-2 scaling solutions (e.g., Optimism, Arbitrum) or cross-chain bridges.
• Knowledge of financial markets, trading strategies, or algorithmic trading.
• Familiarity with cloud platforms (e.g., AWS, Azure) and containerization (e.g., Docker, Kubernetes).
• Contributions to open-source blockchain projects or active participation in blockchain communities.
• Understanding of regulatory frameworks for cryptocurrencies and trading platforms (e.g., KYC/AML compliance).

• Seniority level Mid-Senior level

• Employment type Full-time

• Job function Engineering and Information Technology
• Industries Staffing and Recruiting

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Hong Kong SAR $35,000.00-$60,000.00 3 months ago

Hong Kong, Hong Kong SAR SGD72,000.00-SGD120,000.00 4 weeks ago

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Ceffu is an institutional custody platform on a mission to propel the adoption and active participation of institutional investors in the digital asset ecosystem. With world-class security and liquidity solutions, Ceffu provides a unique gateway to the world’s deepest liquidity as the only institutional crypto custody partner of the Binance Exchange, positioning itself as one of the leading global institutional custody technology providers. Visit for more information.

• This is a fully remote role

Job Responsibilities:

• Work closely with team members (developers, product manager, customer support and partners) to develop, test and deliver high quality products
• Create detailed, comprehensive and well-structured test plans and test cases
• Prevent, report, analyze and track issues in an effective and efficient manner
• Root cause analysis of existing script failures or product issues, propose and drive enhancement for minimizing project issues or risks
• Design, develop and execute automation scripts or implement quality tools to continuously increase efficiency

Skills and Experience required:

• More than 5 years of experience in software testing methodologies, both manual and automated
• Prior working experience for banks, payment systems or fund security testing is a big plus
• Experience in writing clear and comprehensive test plans and test cases
• Experience testing backend services such as APIs, distributed services
• Familiar with AWS and database operation
• Familiar with test environment construction with CICD
• Good programming ability, master at least one of Java, Python and other programming languages
• Strong analytical and trouble-shooting skills
• Experience working in an Agile/Scrum development process
• Good interpersonal, consultative and communication skills
• Self-managed, proactive work style and good commitment

• Mid-Senior level

• Full-time

• Information Technology

• Technology, Information and Internet, Financial Services, and Internet Marketplace Platforms

This job posting appears to be active and relevant. It is well-structured and clearly communicates the role, responsibilities, and requirements.

1 week ago Be among the first 25 applicants

We are seeking a Blockchain Solutions Engineer/Developer Relations Engineer to join our vibrant blockchain team. As a Blockchain Solutions Engineer, you will be the bridge between blockchains and the broader developer community. Your mission is to foster strong relationships with developers, providing them with the tools, resources, and support to thrive within the blockchain ecosystem. This position requires a keen interest in blockchain technology, a collaborative spirit, and a commitment to providing exceptional technical support and guidance.

About the role

We are seeking a Blockchain Solutions Engineer/Developer Relations Engineer to join our vibrant blockchain team. As a Blockchain Solutions Engineer, you will be the bridge between blockchains and the broader developer community. Your mission is to foster strong relationships with developers, providing them with the tools, resources, and support to thrive within the blockchain ecosystem. This position requires a keen interest in blockchain technology, a collaborative spirit, and a commitment to providing exceptional technical support and guidance.

• Seniority level Not Applicable

• Employment type Full-time

• Job function Engineering and Information Technology

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Wan Chai District, Hong Kong SAR 6 days ago

Shenzhen, Guangdong, China CN¥15,000.00-CN¥30,000.00 1 year ago

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