Ruochen Chen

 +61 478396285    [email protected]    GitHub    Blog

 Education

Core Courses: Programming and Software Development, Computer Networks, Data Structures and Algorithms, Database Systems, Distributed Systems, Cluster and Cloud Computing, Declarative Programming, Machine Learning, Software Processes and Management, Information Visualization, etc.

 Work Experience

• Distributed Scheduling Engine Development. Built core scheduling engine using Spring Boot + XXL-JOB, supporting Cron expression configuration and task failover, achieving 99.9% high availability. Designed multi-level fault-tolerant architecture (application cluster + database master-slave) ensuring zero single point of failure and uninterrupted service operation.
• Security & Quality System Construction. Implemented RBAC permission management (Spring Security + JWT) with fine-grained operation access control. Integrated GitHub Actions CI + JUnit 5 unit testing, improving code quality and deployment efficiency.
• Visual Monitoring System Development. Built frontend monitoring dashboard using React + TypeScript, integrating real-time task status, log queries, and performance statistical charts. Optimized operation workflows, reducing troubleshooting time by 40%.

• High-Concurrency Data Processing Framework. Developed universal Excel processing framework (Spring Boot) supporting multi-structure header parsing. Achieved stable import/export of 100K+ records through asynchronous sharding + cache optimization (Redis), supporting 5+ business modules.
• Intelligent Document Review System. Built automated document generation and validation workflow based on Prompt Engineering + knowledge base. Reduced manual review by 75%, improving R&D document standardization and delivery efficiency.
• Unified Message Hub Development. Constructed microservice notification system (Nacos), encapsulating email/SMS/app message components. Supports dynamic scaling, enhancing cross-system message consistency and maintainability.

• Full-Stack Payment Portal Development. Developed payment form portal based on Salesforce Experience Cloud + React; optimized interaction flow, improving user operation fluency by 30%+.
• Automation & Data Cleansing. Developed batch analysis scripts using Python, optimizing knowledge base data cleansing efficiency; React tools enabling real-time user input validation and one-click export.
• Backend Logic & Prototype Design. Developed data query APIs and functionalities using Apex; designed high-fidelity prototypes with Figma, increasing average user session duration.

 Project Experience

• Microservice Architecture & High-Concurrency Core. Built microservice architecture using Spring Cloud + Nacos, implementing service registration/configuration center and load balancing. Matching engine uses RocketMQ + Disruptor for asynchronous order processing, supporting 100K+ TPS; integrated WebSocket (Tio) for real-time market data streaming.
• Security & Distributed Systems. Designed OAuth2 + JWT authentication system with cross-service authorization. Implemented distributed global ID system based on Snowflake algorithm; achieved distributed locking and caching through JetCache + Redis.
• Cloud-Native Deployment & Performance Optimization. Containerized deployment to AWS EC2 using Docker, integrated S3 storage/SNS notifications. Implemented efficient K-line data management based on Redis List, supporting tens of millions of data entries; automated historical data compression through scheduled tasks, reducing storage costs by 40%.

• High-Performance Network Communication. Implemented non-blocking network communication based on Netty NIO, improving throughput by 3x+ (compared to BIO); designed custom protocol supporting multiple serialization schemes (Java native/JSON).
• Service Governance Core Mechanisms. Integrated Zookeeper for service registration and discovery, Redis caching node data ensuring high availability; developed dynamic proxy invocation layer simplifying client call process.
• Traffic Scheduling Optimization. Implemented multiple load balancing algorithms (random/round-robin); supports second-level service circuit breaking and automatic traffic switching.

• Cloud-Native Architecture Deployment. Built high-availability cluster using Kubernetes + Docker on NeCTAR cloud, implemented scheduled data collection tasks (social media platforms) through Fission. Auto-scaling container replicas ensuring elastic resource scheduling.
• Real-Time Search Engine Development. Built Elasticsearch distributed search system supporting efficient indexing and second-level retrieval of tens of millions of data entries.
• Intelligent Data Analytics Engine. Integrated Python NLP toolkit (NLTK/VADER/TextBlob) for sentiment analysis/keyword extraction/text classification tasks. Jupyter Notebook provides dynamic visualization analysis interface.

 Technical Skills

• Language Proficiency: Fluent in English, can be used as working language.
• Professional Skills:
  • Java Ecosystem. In-depth mastery: JVM (memory/GC/class loading), multithreading, collections framework; Framework ecosystem: Spring Boot/Spring MVC/MyBatis-Plus (IOC/AOP).
  • Microservice Architecture. Component capabilities: Spring Cloud (Nacos/OpenFeign); Message middleware: RocketMQ/Kafka (dead letter queues/message reliability).
  • Database. MySQL: index optimization/transaction isolation/locking mechanisms; Redis: core data types/caching strategies (penetration/breakdown/avalanche solutions); Cloud storage: AWS/Alibaba Cloud (AWS Cloud Practitioner certified).
  • Infrastructure. Containerization: Docker/Kubernetes + Serverless architecture; Network protocols: TCP/IP model, HTTP/TCP/UDP/DNS; Linux operations: common commands/system management.
  • Extended Capabilities. Design patterns: Singleton/Factory/Strategy/Observer/Decorator; AI integration: LangChain/Spring AI basic development; Frontend collaboration: Vue/React/Next.js/TailWind CSS (full-stack requirement support).
• Interests & Hobbies: Saxophone (10+ years), Fitness (4+ years), Chess.