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北京Java兼职程序员

ID：416087

Mony

后端工程师

公司信息：
郑州时空隧道

工作经验：
2年

兼职日薪：
500元/8小时

兼职时间：
可工作日远程

所在区域：
北京
海淀

技术能力

Results-driven Java Backend Engineer with 2 years of experience designing high-concurrency distributed systems. Proficient in Spring Cloud microservices architecture and JVM tuning. Expert in high-performance MySQL optimization and Redis caching strategies. Led the refactoring of a legacy monolithic system, achieving 99.99% stability and a 30% reduction in API response latency.

TECHNICAL SKILLS

· Languages: Java (8, 11, 17), Kotlin, SQL
· Frameworks: Spring Boot, Spring Cloud (Alibaba), Netty, MyBatis, Hibernate
· Middleware: Redis, RocketMQ/Kafka, Elasticsearch, Nginx
· Databases: MySQL, PostgreSQL, MongoDB, TiDB
· DevOps & Tools: Docker, Kubernetes (K8s), Jenkins, Git, Maven/Gradle, JProfiler, ArgoCD

项目经验

Architected the Order Center: Led the design of a high-availability order system handling 500k+ QPS (peak). Deployed a multi-level cache strategy (Caffeine + Redis) reducing database pressure by 80% .
· Performance Optimization: Reduced full GC frequency from 3 times/day to once/week through JVM parameter tuning and memory leak analysis using MAT; improved system throughput by 25% .
· Microservices Transformation: Refactored a monolithic payment module into Spring Cloud Alibaba microservices. Implemented Seata distributed transactions to ensure data consistency across 15+ services.
· Stability Assurance: Built an automated monitoring system based on Sentinel for flow control and circuit breaking, preventing cascading failures during double 11 peak traffic.

案例展示

智能公交调度系统

面向大型城市公交集团，建设覆盖“人-车-路-站-场”全要素的智能调度系统。系统实时处理全市3000+辆公交车的GPS轨迹数据（每秒5万条），结合路况、客流预测动态生成发车计划，实现车辆间隔优化和应急调度。
车联网（IoV）数据接入与监控平台

为某新能源车企搭建车联网数据中台，实时接入10万+辆在途车辆的T-Box上报数据（电池、电机、车辆状态等）。平台需满足国标协议解析、实时告警、大数据分析三大核心能力，支撑远程诊断和电池健康度评估。