Backend Developer

Job Requirements:
1. [protected info] Stack:
• 1-2 years of experience in [protected info] development, with a strong foundation in JavaScript/TypeScript. Understand the fundamentals of [protected info], including its event-driven architecture, asynchronous programming model, and performance optimization techniques.
• Proficient in frameworks such as Express, Koa, or NestJS, and capable of designing and developing efficient API services.
• Knowledgeable in the workings of the V8 engine, able to manage memory and optimize performance, and familiar with common [protected info] development tools and debugging techniques.
2. Java Stack:
• 1-2 years of experience in Java development, with a solid foundation in Java. Familiar with JVM, NIO, multithreading, and concurrent programming, and understand Java's underlying mechanisms.
• Proficient in using frameworks like SpringBoot and MyBatis to efficiently implement business logic and optimize systems.
3. High Concurrency and Distributed Systems:
• Familiar with system design and optimization strategies in high-concurrency scenarios, with experience in distributed system architecture design. Understand microservices architecture, RPC frameworks, caching mechanisms, and distributed messaging queues.
• Able to design robust distributed systems, ensuring their stability and scalability in high-concurrency environments.
4. Blockchain and Web3 Skills:
• Understanding of blockchain fundamentals such as consensus algorithms, smart contracts, and distributed ledgers, with some experience in on-chain development.
• Familiar with Ethereum and Solidity development, capable of writing and deploying smart contracts.
• Understanding of basic Web3 concepts and the ecosystem, including decentralized applications (dApps), wallets, and token standards (e.g., ERC-20, ERC-721).
• Candidates with industry experience are preferred, especially those who can integrate blockchain technology to design and optimize system solutions.
5. Open Source Projects and Problem-Solving:
• Familiar with open-source projects like MySQL and Redis, with strong problem-solving skills and the ability to optimize database performance.
• Capable of leveraging open-source technology stacks to meet business needs and effectively improve system architecture.
6. Large-Scale System Analysis and Design:
• Experience in analyzing and designing large-scale applications, with deep knowledge of the core concepts of mainstream technical frameworks. Able to consider system architecture from a global perspective and devise reasonable technical solutions.