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GateKeeper
Remote

Full Time

1. Design and develop smart contracts for decentralized applications based on Solana or EVM ecosystems. 2. Write efficient and secure smart contracts using Solidity or other smart contract languages, and ensure seamless integration with front-end and back-end systems. 3. Implement and optimize the core functions of blockchain applications, including but not limited to asset management, transaction execution, and security verification. 4. Coordinate with other team members (including front-end workers)

$3,000 - $6,000 /hour
TanTin Technology
Remote

Full Time

1. Participate in the design and development of cross chain bridge protocols to achieve multi chain interoperability of assets/messages. 2. Optimize the security, stability, and performance of cross chain transactions to ensure reliability in high concurrency scenarios. 3. Develop a smart contract interaction module to handle on chain/off chain data verification and synchronization. 4. Collaborate with the cryptography team to implement secure signature verification and cross chain communication mechanisms.

$2,800 - $5,500 /hour
TanTin Technology
Remote

Full Time

Job responsibilities of contract technology expert: 1. Development and optimization of contract trading system matching/clearing system: 2. Responsible for the development, optimization, and maintenance of the company's trading system matching and clearing engine, ensuring stable and efficient operation of the matching and clearing engine in high concurrency and high load environments. 3. Design and implement high-performance, low latency matching algorithms and low latency clearing based on market demand and business changes, ensuring fairness, accuracy, and efficiency in transaction matching. 4. Trading Summary

$8,000 - $12,000 /hour
Y-MEX
Remote

Full Time

1. Development task: Complete the responsible development tasks on time and deliver high-quality code and documentation. System maintenance: Maintain high stability and availability of the trading system, continuously optimize system performance and user experience. 2. Technical research: Continuously research innovative technologies and share research results with team members. 3. Problem solving: Responsible for locating and resolving customer issues to ensure the normal operation of the system. 4. Teamwork: Work closely with team members,

$4,000 - $6,000 /hour
TanTin Technology
Remote

Full Time

1. Responsible for the front-end development of the public chain wallet web, achieving a user-friendly blockchain interaction experience; 2. Develop core functional modules (such as transaction signatures, DApp connections, multi chain asset management, etc.); 3. Optimize front-end performance and security to ensure reliable key processes such as private key management and transaction broadcasting; 4. Collaborate with smart contract and backend teams to design and implement a wallet API integration solution; 5. Follow up on blockchain ecosystem technologies (such as EIP-6963, A)

$2,500 - $5,000 /hour
TanTin Technology
Remote

Full Time

1. Responsible for the functionality, security, compatibility, and performance testing of Web3 wallets (mobile/web). 2. Design and execute test cases covering core scenarios such as blockchain transactions, DApp interactions, and multi chain compatibility. 3. Participate in security testing, including verifying risk points such as private key management, signature vulnerabilities, and anti phishing. 4. Track defects and drive repairs, output test reports, and ensure version quality.

$2,000 - $3,000 /hour
Range
Remote

Full Time

Solana Rust EngineerResponsibilities:Perform cutting-edge security research in Solana and Rust-based blockchains.Develop security tooling and develope

$5,000 - $10,000 /hour
Molecule
Remote

Full Time

Design Protocol: Develop a comprehensive architecture for a biotech IP protocol based on user research and business process requirements within the fi

$1 - $20,000 /hour
MSafe
Remote

Full Time

Job responsibilities: 1 Using TypeScript for backend development, building and maintaining high-performance services; two Responsible for the development, optimization, and maintenance of backend core modules; three Use Docker for service containerization deployment and maintenance; four Maintain and manage backend databases, including MySQL, PostgreSQL, and Redis, and perform database design and performance tuning;

$4,000 - $10,000 /hour
MSafe
Remote

Full Time

Job responsibilities: 1 Develop and maintain front-end using TypeScript, Next.js, and React; 2. Develop high-quality and maintainable web applications based on product requirements; 3. Collaborate with backend and design teams to optimize user experience; 4. Participate in code reviews to ensure code quality and standardization; In a fast-paced work environment, efficiently complete development tasks, respond quickly, and solve problems; six

$4,000 - $10,000 /hour
Jito Labs
Remote

Full Time

Enhance security protocols to ensure alignment with industry standards, regulatory requirements, and best practicesCreate, implement, and deploy stron

$15,000 - $17,500 /hour
Y-MEX
Remote

Full Time

1. Development task: Complete the responsible development tasks on time and deliver high-quality code and documentation. System maintenance: Maintain high stability and availability of the trading system, continuously optimize system performance and user experience. 2. Technical research: Continuously research innovative technologies and share research results with team members. 3. Problem solving: Responsible for locating and resolving customer issues to ensure the normal operation of the system. 4. Teamwork: Work closely with team members,

$4,000 - $6,000 /hour
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