All active Security Engineer roles based in Shenzhen.
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Summary: We are seeking an AI Engineer to join an innovative team in Shenzhen. This role involves developing cutting-edge AI solutions to support our next-generation Layer 1 blockchain project, focusing on institutional adoption and the tokenization of real-world assets. The AI Engineer will play a critical role in designing and implementing AI models that bridge traditional Web2 institutions into Web3.
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Purpose of Position
Job Description
Requirements
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My client is a leading Web3 and Decentralized Finance (DeFi) company and looking for a Senior Smart Contract Engineer (Solidity/Rust/Move) roles.
Protocol Architecture & Deployment: Architect and implement core on-chain protocols for a Decentralized Exchange (DEX), including capital vaults, clearinghouses, and settlement engines.
On-Chain Transaction Logic: Develop the underlying logic for clearing and settlement processes, ensuring high-fidelity integration with off-chain high-performance matching engines.
Oracle System Integration: Design and maintain robust Oracle contract frameworks to support real-time price feeds, data validation, and asset valuation.
Security & Audit Management: Lead smart contract security hardening initiatives, collaborate with external auditors to rectify vulnerabilities, and oversee mainnet deployments.
End-to-End Synergy: Partner with backend and QA teams to bridge the gap between off-chain trade commands and on-chain fund movements for seamless execution.
Academic Background: Degree in Computer Science, Software Engineering, Cryptography, or a related technical field.
Solidity Mastery: 3+ years of professional Solidity development with deep expertise in EVM mechanics, Gas optimization techniques, and ERC standards.
DeFi Domain Expertise: 2+ years of specialized experience in DEX clearing and settlement workflows, including sophisticated Oracle integration.
Multi-Chain Proficiency: Proficient in Rust or Move programming, with the ability to lead contract module development across diverse blockchain ecosystems.
Ecosystem Knowledge: Strong understanding of the architectural paradigms of high-performance chains such as Solana or Sui.
Experience developing advanced vault standards (e.g., ERC-4626, ERC-7540, or ERC-7575) and complex accounting logic.
Familiarity with advanced security methodologies, including Fuzzing or Formal Verification.
Proven track record of successful smart contract audits or hands-on experience in incident response and protocol hardening.
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We are seeking a seasoned Backend Engineer with deep expertise in decentralized finance (DeFi) to lead the architectural design and development of our client's high-performance DEX platform. You will be responsible for building the core components of a world-class trading environment, focusing on ultra-low latency, high concurrency, and uncompromising security.
Architectural Leadership: Design and develop the core server-side architecture for a Decentralized Exchange (DEX).
Core Module Engineering: Lead the implementation of critical modules, including matching engines, order books, market data broadcasting, risk management, and clearing/settlement systems.
Infrastructure & Connectivity: Develop and maintain high-performance trading gateways (REST/WebSocket), market data feeds, and K-line services.
Performance Optimization: Ensure the stability and performance of high-concurrency, low-latency trading systems through rigorous JVM tuning and system-level optimizations.
Resilience & Security: Build foundational capabilities for data persistence, comprehensive logging, automated backups, and robust disaster recovery protocols.
Cross-Functional Collaboration: Partner closely with Smart Contract and Frontend teams to ensure seamless end-to-end integration across the entire trading lifecycle.
Educational Background: Bachelor’s degree or higher in Computer Science, Software Engineering, or a related technical field.
Java Expertise: 8+ years of professional Java development experience, with mastery of multi-threading, concurrency models, and JVM performance tuning.
DEX Domain Knowledge: 3+ years of direct experience in DEX/Exchange server-side development, with a deep understanding of matching, clearing, and risk control workflows.
High-Performance Frameworks: Proven experience with LMAX Disruptor, Chronicle, or similar high-performance frameworks; familiarity with Exchange-core architectures is essential.
Data Management: Expertise in MySQL, Redis, and MongoDB, including advanced database design, index optimization, and distributed transaction management.
System Reliability: Deep understanding of multi-active database deployments and disaster recovery; ability to lead team-wide emergency drills.
Messaging & Streaming: Proficiency in Kafka (consumer groups, partitioning, persistence) and real-time data processing.
Cloud & DevOps: Hands-on experience with Docker and Kubernetes (Deployment, Service, Ingress, Monitoring); proficiency with AWS or Alibaba Cloud ecosystems (EC2/ECS, RDS, OSS).
Experience with EVM-based on-chain settlement, Oracles, and off-chain data integration.
Familiarity with modern observability stacks, including Prometheus, Grafana, and ELK.
Polyglot capabilities: Ability to develop stable auxiliary services in Golang or Node.js for on-chain data retrieval and analysis.
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We are seeking a highly technical Senior QA Engineer to spearhead the quality assurance strategy for our client - Decentralized Exchange (DEX). This role focuses on the intersection of traditional exchange mechanics and blockchain technology, requiring a candidate who can perform deep white-box testing on smart contracts while ensuring the reliability of the entire trading lifecycle.
Full-Stack Testing: Lead end-to-end testing for DEX/CEX platforms, encompassing functional integration, User Acceptance Testing (UAT), performance/stress testing, and security assessments.
Smart Contract White-Box Testing: Conduct rigorous unit and integration testing for core on-chain components, including Vaults, Clearinghouses, Settlement engines, and Oracles.
Framework Architecture: Build and maintain scalable automated testing frameworks using industry-standard tools like Hardhat and Foundry.
Release Management: Oversee production environment deployment verification, regression testing, and final launch acceptance to ensure zero-defect deployments.
Collaborative Design: Actively participate in requirements review and test design alongside Developers and Product Managers to bake quality into the development lifecycle.
Experience: 8+ years of professional QA experience with a deep understanding of cross-platform testing (PC, H5, and Mobile).
Domain Expertise: 3+ years of specific experience in Exchange (DEX/CEX) testing, with a thorough grasp of matching engines, clearing/settlement, and asset flow logic.
Blockchain Proficiency: Mastery of smart contract testing across at least two major ecosystems: EVM (Solidity), Sui (Move), or Solana (Rust/Anchor).
Technical Toolkit: Proficient in Hardhat, Foundry, or Truffle for comprehensive white-box testing of contract source code.
Web3 Integration: Skilled in testing Chainlink Oracle integrations, WalletConnect, and Web3 Providers.
Automation Mastery: Proven ability to implement end-to-end automation spanning UI, API, and on-chain interactions.
Risk Management: Familiarity with exchange risk control systems and experience validating complex risk parameters.
Protocol Knowledge: Experience testing specific standards and architectures such as ERC-4626 (Yield-bearing vaults), ERC-7540/7575, AMM (Automated Market Makers), or Order Book contracts.
Security Mindset: Familiarity with smart contract security audits and common vulnerabilities (Reentrancy, Arithmetic Overflows, Access Control).
Advanced Methodology: Experience with Fuzzing (e.g., Echidna, Foundry invariant testing) or Formal Verification.
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我们正在支持一个资金充足的下一代 Layer 1 区块链项目。该平台专门用于现实世界资产(RWA)和稳定币的代币化及链上流通,重点关注机构的采用。
团队正在构建基础设施,将传统的 Web2 机构连接到 Web3,拓展链上资产的多样性,解锁新的收益机会,并促进更广泛的投资者参与。他们的使命是帮助企业克服操作、监管和知识障碍,使其能够以安全、合规和可扩展的方式在链上部署资产。凭借深厚的现实世界资产领域专业知识和强大的技术执行能力,团队正在开发面向机构的区块链基础设施和综合去中心化生态系统。
我们正在寻找一位优秀的区块链开发者,专注于区块链内部结构,旨在重新定义我们去中心化网络的性能界限。这个角色适合能够在执行层、虚拟机架构和跨链连接方面解决复杂挑战的技术愿景者。
We are supporting a well-funded, next-generation Layer 1 blockchain project. The platform is purpose-built for the tokenization and on-chain circulation of real-world assets (RWA) and stablecoins, with a strong focus on institutional adoption.
The team is building infrastructure that bridges traditional Web2 institutions into Web3, expanding on-chain asset diversity, unlocking new yield opportunities, and enabling broader investor participation. Their mission is to help enterprises overcome operational, regulatory, and knowledge barriers, allowing them to deploy assets on-chain in a secure, compliant, and scalable manner. With deep RWA domain expertise and strong technical execution, the team is developing institutional-grade blockchain infrastructure and a comprehensive decentralized ecosystem designed to support large-scale, real-world asset adoption.
We are seeking a high-caliber Blockchain Developer specializing in blockchain internals to redefine the performance boundaries of our decentralized network. This role is designed for a technical visionary who thrives on solving complex challenges within execution layers, virtual machine architecture, and cross-chain connectivity.
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Role Summary
Ubuntu is the most widely used Linux for innovation from cloud to connected device. Our growing team of IoT field engineers help customers deliver sophisticated IoT products and services across a wide range of industries - from autonomous vehicles to refrigeration solutions.
Field engineers carry a significant responsibility - helping customers understand the range of silicon and board options, helping them deliver their unique applications, and helping them ensure the security of critical infrastructure. Our team hires software engineers with experience in the full stack of Linux from firmware to GUI. We represent Canonical and its capabilities to some of the most important companies in the world. Our customers have tremendously varied goals - from mission critical and very expensive machines to tiny and low-cost things. We aim to bring the right insights at each stage of the process and to help these customers make effective choices. Most importantly, we aim to help them deliver devices that meet their business goals, on time.
Responsibilities include consulting, developing, demonstrating, and presenting some of the most advanced operating systems and application technologies available in the enterprise world. The role is a fast-paced, problem-solving environment and the questions require answers can be challenging yet very exciting. The right candidate must be resourceful, quick-thinking, and able to deliver on a wide variety of solutions across cloud, server, desktop and IoT technologies.
This role will support customers in China and the broader Asia-Pacific market.
Key Responsibilities and Accountabilities
Required Skills and Experience
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A pioneering Custom Tokenization-As-A-Service platform focused on Real-World Assets (RWA) is expanding its engineering team. Backed by strong angel investors and preparing for institutional funding, we partner with licensed exchanges and target Fortune 500 enterprises, AI data centers, and specialized sectors to bring enhanced liquidity and efficiency through tokenization.
We are seeking a talented Frontend Engineer to build intuitive, high-performance user interfaces for our decentralized RWA management platform. You will play a key role in delivering seamless experiences across web and mobile applications, with deep integration into Web3 ecosystems.
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Qualifications:
Preferred Skills:
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About Us:
We’re a fast-moving, AI-leveraged rapid prototyping lab creating innovative products in martech, fintech, web apps, websites, crypto, and more. Our developers are the backbone of our mission to build and iterate at speed, delivering solutions that blend cutting-edge tech with real-world impact.
Job Summary:
As a Software Developer, you’ll build and iterate on prototypes and MVPs across our diverse product stack. Working closely with product managers and marketing professionals, you’ll leverage AI tools and frameworks to deliver scalable, secure, and high-performance solutions in a rapid development environment.
Key Responsibilities:
Qualifications:
#LI-REMOTE
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