核心职责

• 链上协议开发： 主导去中心化交易协议的核心合约设计与部署，涵盖资金池（Vault）、清算结算中心及交易记录器等关键组件。

• 交易链路实现： 负责链上清算与结算逻辑的底层实现，并确保与链下高性能撮合引擎的高效协同。

• 预言机架构集成： 设计并维护高可靠的 Oracle 合约体系，支持实时价格喂价、数据校验及资产定价逻辑。

• 安全与审计保障： 深度参与合约安全加固，配合第三方审计机构完成代码审计，并主导合约的生产环境上线。

• 跨端协同对接： 联同后端及测试团队，完成从链下指令到链上资金划转的全链路闭环验证。

任职要求

• 专业背景： 计算机、软件工程或密码学相关专业本科及以上学历，具备扎实的计算机理论基础。

• Solidity 深度开发： 拥有 3 年以上 Solidity 实战经验，精通 EVM 机制、Gas 优化策略及各类 ERC 标准协议。

• 清结算领域专家： 具备 2 年以上 DEX 清算与结算系统开发经验，并有成熟的预言机（Oracle）集成实战案例。

• 多链开发能力： 熟练掌握 Rust 或 Move 语言，能够在中大型项目中独立主导核心合约模块的开发。

• 跨生态视野： 深入理解主流公链（如 Solana 或 Sui）的底层逻辑，熟悉高性能链上应用的开发范式。

My client is a leading Web3 and Decentralized Finance (DeFi) company and looking for a Senior Smart Contract Engineer (Solidity/Rust/Move) roles.

Core Responsibilities

• 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.

Candidate Requirements

• 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.

Preferred Qualifications

• 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.

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.

Key Responsibilities

• 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.

Required Qualifications & Skills

• 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.

Preferred Attributes (Bonus)

• 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.

核心职责

• 全链路质量保障： 负责高频交易平台的全生命周期测试，涵盖集成测试、用户验收测试 (UAT) 及高并发性能压测。

• 协议与合约验证： 对底层区块链协议及智能合约进行深度的白盒测试，确保交易逻辑的准确性与资金安全性。

• 自动化体系建设： 设计并维护可扩展的自动化测试框架，覆盖前端交互、后端 API 及链上数据的全方位校验。

• 风险控制测试： 验证复杂的金融交易逻辑，包括清结算流程、风控模型及预言机数据喂价的可靠性。

• 技术协同交付： 与开发和产品团队紧密协作，深度参与需求评审，把控生产环境发布的高标准交付。

任职要求

• 资深测试背景： 拥有 8 年以上软件测试经验，精通 Web 端、移动端及复杂后端架构的测试方法论。

• 交易业务专家： 深刻理解金融交易系统运作，熟悉撮合引擎、资产清算及资金流转管理等业务。

• 区块链技术功底： 熟练掌握主流智能合约环境（如 EVM、Rust 或 Move）及相关的开发者测试工具链。

• Web3 基础架构： 具备钱包集成、去中心化协议交互及外部数据源对接的实际测试经验。

• 源码级分析能力： 能够通过阅读源码定位潜在逻辑漏洞，并在高并发环境下优化系统的稳定性。

加分项

• 具备 DeFi 核心协议（如 AMM、资金池或订单簿）的相关测试经验。

• 熟悉智能合约安全审计流程及常见的链上漏洞攻击模式。

• 拥有模糊测试 (Fuzzing) 或不变性测试等高级安全校验手段的实战经验。

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。

职责

• 设计和优化高吞吐量虚拟机（VM），关注并行执行和与 EVM 兼容环境的低级调优。
• 主导复杂系统级合约的开发，通过专家审核和 Gas 优化确保最大效率和毫不妥协的安全性。
• 深入研究行业领先协议（如 Aptos、Solana 和 Ethereum）的源代码，以基准测试和实施更优的共识和执行策略。
• 在架构决策中担任主要利益相关者，通过详细的代码审查和工程团队的专业发展，维护工程卓越。
• 设计和部署稳健的互操作性框架，确保网络在更广泛的多链生态系统中保持灵活。

技术要求

• 精通 C++ 和系统级编程，关注高效数据结构和算法复杂性。
• 充分理解虚拟机机制，包括栈管理、状态转换和指令集架构（拥有 WASM 或 MoveVM 经验者尤佳）。
• 证明了开发高风险 Solidity 应用程序的能力，关注安全优先的模式和资源高效的代码。
• 有在基础层面分析并贡献主要公共链基础设施的记录。
• 计算机科学或相关定量领域的学位（优先考虑高级学位）。

高度重视的技能

• 使用 Rust 或 Go 构建高性能后端模块的经验。
• 数据库工程背景（例如，RocksDB/LevelDB 优化）或多线程并行处理经验。

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.

Responsibilities 

• Architect and refine high-throughput Virtual Machines (VMs), focusing on low-level tuning for parallel execution and EVM-compatible environments.
• Spearhead the development of sophisticated system-level contracts, ensuring maximum efficiency and ironclad security through expert-led audits and Gas optimization.
• Deep-dive into the source code of industry-leading protocols (such as Aptos, Solana, and Ethereum) to benchmark and implement superior consensus and execution strategies.
• Act as a primary stakeholder in architectural decisions, upholding engineering excellence through detailed code reviews and the professional development of the engineering team.
• Design and deploy robust frameworks for interoperability, ensuring the network remains agile within the broader multi-chain ecosystem.

Technical Profile

• Exceptional command of C++ and systems-level programming, with a focus on high-efficiency data structures and algorithmic complexity.
• Comprehensive understanding of VM mechanics, including stack management, state transitions, and instruction set architecture (WASM or MoveVM experience is highly valued).
• Proven ability to engineer high-stakes Solidity applications with a focus on security-first patterns and resource-efficient code.
• A track record of analyzing and contributing to major public chain infrastructures at a foundational level.
• A degree in Computer Science or a relevant quantitative field (Advanced degrees preferred).

Highly Valued Skills

• Experience building with Rust or Go for high-performance backend modules.
• Background in database engineering (e.g., RocksDB/LevelDB optimization) or multi-threaded parallel processing.

關於我們：

我們是一家快速發展、利用AI技術的快速原型實驗室，專注於在營銷科技、金融科技、網絡應用、網站、加密貨幣等領域創造創新產品。我們的開發者是我們使命的核心，致力於快速構建和迭代，交付融合尖端技術與現實世界影響力的解決方案。

職位概要：
作為軟件開發者，您將在我們多樣化的產品堆棧中構建和迭代原型及最小可行產品（MVP）。您將與產品經理和市場營銷專業人士密切合作，利用AI工具和框架，在快速開發環境中交付可擴展、安全且高性能的解決方案。

主要職責：

• 使用AI驅動的開發工具（如Cursor、GitHub Copilot、Replit AI或Tabnine）簡化編碼、調試和原型迭代。
• 使用現代框架（如React、Node.js、Python等）開發和維護網絡應用、網站和後端系統。
• 將AI/ML模型集成到產品中（如營銷科技的推薦系統、金融科技的欺詐檢測）。
• 為加密貨幣相關項目構建和測試智能合約或基於區塊鏈的功能。
• 在雲環境（如AWS、Azure）中優化代碼的性能、可擴展性和安全性。
• 參與架構決策，並在敏捷、迭代的工作流程中採用最佳實踐。

任職資格：

• 必須熟悉AI驅動的開發工具（如代碼生成、自動化測試）。
• 2年以上軟件開發經驗，熟練掌握至少一種現代技術堆棧（如JavaScript、Python、Go、Rust）。新畢業生若有使用AI工具的相關經驗也可考慮。
• 具備REST API、數據庫（SQL/NoSQL）和雲平台的經驗。
• 熟悉AI/ML集成（如TensorFlow、PyTorch或基於API的AI服務）。
• 具備區塊鏈開發知識（如Solidity、Rust、Move）為加分項，但非必需。
• 具備出色的問題解決能力，能在快節奏、以原型為導向的環境中蓬勃發展。
• 加分項：有營銷科技（如廣告技術API）、金融科技（如支付網關）或加密貨幣的經驗。

#LI-REMOTE

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:

• Utilize AI-driven development tools like Cursor, GitHub Copilot, Replit AI, or Tabnine to streamline coding, debugging, and iteration on prototypes.
• Develop and maintain web apps, websites, and backend systems using modern frameworks (e.g., React, Node.js, Python, etc.).
• Integrate AI/ML models into products (e.g., recommendation systems for martech, fraud detection for fintech).
• Build and test smart contracts or blockchain-based features for crypto-related projects.
• Optimize code for performance, scalability, and security in cloud environments (e.g., AWS, Azure).
• Contribute to architecture decisions and adopt best practices in an agile, iterative workflow.

Qualifications:

• Familiarity with AI-driven development tools (e.g., code generation, automated testing) is a must.
• 2+ years of software development experience, with proficiency in at least one modern stack (e.g., JavaScript, Python, Go, Rust). Fresh Graduates with relevant experience leveraging AI tooling will be considered.
• Experience with REST APIs, databases (SQL/NoSQL), and cloud platforms.
• Familiarity with AI/ML integration (e.g., TensorFlow, PyTorch, or API-based AI services).
• Knowledge of blockchain development (e.g., Solidity, Rust, Move) is a plus but not a must.
• Strong problem-solving skills and ability to thrive in a fast-paced, prototype-driven setting.
• Bonus: Experience in martech (e.g., adtech APIs), fintech (e.g., payment gateways), or crypto.

#LI-REMOTE