{"username":"oyzm","header":{"name":"欧阳志明","tagline":"19年工作经验 | 技术专家 | Java架构师 | 社交/支付/直播领域"},"personalInfo":{"email":"jimmy86@163.com","phone":"18974600000","location":"广州"},"experience":[{"company":"南宁优播（虎牙团队）","role":"技术总监","startDate":"2022-08","endDate":"至今","bullets":["危局接盘，核心技术人员离职过半，1个月完成架构治理恢复迭代，从0组建13人产研团队","主导产品技术作战地图，8个月交付5款语聊产品，营收从不足5000万增长至2亿/年","主导交易核心链路重构，TPS从不到1000提升至7200+（压测），支撑业务10倍增长","GraalVM Native落地减少50%资源消耗，运营成本15万/月降至3万/月，年节省144万"],"tags":["SpringBoot","SpringCloud","Kotlin","AWS EKS","GraalVM"]},{"company":"美光盛世（映客直播）","role":"技术经理","startDate":"2021-04","endDate":"2022-08","bullets":["负责社交（2款app月流水5000万）和短剧（TOP 6，6000万用户、300万日活）两条业务线","海外社交线负责人，带13人团队，1个月上线Kama直播app，6个月交付9款矩阵产品覆盖中东/东南亚","主导美光在一起app服务化改造，按领域拆分4大核心服务，发布频率双周→每日，线上故障率降60%","抽象统一登录/支付/推送SDK，新产品接入周期从1个月缩短到1周"],"tags":["SpringCloud","微服务","海外社交","短剧平台"]},{"company":"蓝海鲨科技（小小语音）","role":"技术经理","startDate":"2019-09","endDate":"2021-04","bullets":["创始技术负责人，独立完成技术选型和架构设计，50天交付MVP，个人贡献80%核心代码","从第一个用户到1.5亿+下载、2700万用户、45万DAU，主导4次架构演进，每次零故障迁移","设计通用活动引擎，运营上线周期2周→1天，驱动营收+58%；统一支付网关成功率99.2%，年GMV 4.2亿","组建12人后端团队，连续5次绩效A/B+，9个月完成30+次迭代和15次平台活动"],"tags":["SpringCloud","MySQL","Redis","RocketMQ","K8S"]},{"company":"中国通信服务（港股上市）","role":"架构师","startDate":"2007-07","endDate":"2019-08","bullets":["12年从核心开发成长为架构师，主导6个大型项目架构设计与核心开发","翼支付（5.4亿用户）：负责支付路由/渠道管理/对帐清算，管理30+渠道，日均1500万笔，可用性99.99%","纷享荟商城（无限极，直销TOP 1）：从0搭建电商中台，800万会员，日订单8000+，大促15倍弹性零故障"],"tags":["Spring","Dubbo","MySQL","Redis","分布式架构"]}],"education":[{"school":"湖南师范大学","major":"计算机科学与技术","degree":"本科","startDate":"2003","endDate":"2007"}],"projectsRecent":[],"projectsDetailed":[{"title":"交易核心链路优化","type":"研发负责人","startDate":"2023-11","endDate":"2024-05","bullets":["背景：千万用户社交平台，PK活动期间头部主播单房间礼物QPS达8000+，交易链路TPS不到1000且频繁锁超时，扩容效果有限","资金安全架构：设计先扣后发+事务消息+对帐补偿三道防线，确保亿级日流水零资金差错；交易流水与帐户余额独立校验链路，每日自动试算平衡","热点帐户攻坚：头部主播秒级数千次余额更新，设计内存记帐+异步落库方案（Redis Lua原子更新快照 → Redisson延时队列归并MySQL），热点帐户更新性能从200TPS提升到12000TPS","帐户模型拆分：4个维度从单行拆为独立行并分库分表（4库128表），以用户ID为分片键避免跨库事务，DB CPU 87%→31%","链路瘦身：核心同步路径压缩至余额校验→扣减→写流水（20ms），6个下游模块MQ异步化，吞吐量提升10倍","在线不停服迁移：3000万帐户从旧表迁移到新分片表，双写+增量同步+数据校验+灰度切读四阶段，72小时完成，迁移期间交易成功率保持99.97%","收益：生产TPS 1800+，压测7200+，CPU 54%，送礼接口80ms / P99 200ms，资金差错率0"],"tags":["ShardingSphere","RocketMQ","JD-hotkey","分布式事务","资金安全"]},{"title":"小小语音APP（0-1搭建、3000万用户、亿级营收）","type":"后端负责人","startDate":"2019-09","endDate":"2021-04","bullets":["规模：16个微服务、58个实例，3000万用户，45万DAU，日均PV 8000万+，高峰QPS 1800+","语音房状态同步：万人在线房间的麦位状态需多端毫秒级一致，设计Redis Stream事件广播+版本号向量时钟解决并发操作冲突，状态同步延迟<200ms","万人房间消息风暴：热门房间瞬间涌入上万观众，弹幕和礼物形成写放大。设计内存环形缓冲区+50ms窗口批量广播，单房间推送QPS从5万降到800，客户端体验无感知","实时榜单：直播PK活动千万用户同时刷榜，Redis Zset分桶+Lua脚本方案，跨桶排名通过前缀和优化从O(N)降到O(K)，千万级数据查询延迟<10ms","架构演进：50天MVP单体 → 用户破100万拆分16个微服务 → 破1000万分库分表，每阶段双写+灰度切流零故障迁移","稳定性体系：Sentinel限流熔断+分钟级SLA告警+DDoS防护（日均拦截2500次）+故障演练预案，系统可用性99.95%","商业化驱动：通用活动引擎使新活动上线从2周缩短到1天，驱动营收提升58%；统一支付网关对接6种渠道，成功率优化到99.2%","收益：50天MVP到年GMV 4.2亿，核心接口TP99<150ms，系统可用性99.95%"],"tags":["SpringCloud","ShardingJDBC","Redis","RocketMQ","ES","Doris","K8S"]},{"title":"纷享荟商城（中国直销Top 1、260亿营收）","type":"架构师 & 研发负责人","startDate":"2017-08","endDate":"2018-06","bullets":["背景：无限极电商平台，800万会员，商品/购物车/订单/优惠券/支付/物流全链路，大促峰值是日常15倍","电商中台搭建：主导领域建模划分7大领域（商品/交易/支付/库存/物流/营销/用户），定义领域边界和交互协议，从单体演进为中台化架构","大促峰值方案：热点库存Redis CAS预扣减+DB异步确认，订单创建链路MQ削峰+异步出库+异步扣券，配合多级缓存预热+集群限流，单机4000+ QPS，大促零超卖零资损","订单履约一致性：订单-库存-积分-优惠券跨4服务一致性，Saga编排+本地消息表正向最终一致，逆向按依赖拓扑补偿，日均8000+订单零不一致","支付中心：策略+模板方法实现渠道可插拔，双维度幂等防重复扣款，新渠道3天上线","不停机迁移：800万用户+亿级历史订单迁移到新中台，双写→灰度→切主→下线四阶段，T+1自动对帐验证，2个月完成零故障","收益：日访问量5000万+，日订单8000+，大促15倍弹性，P2以上事件0次"],"tags":["SpringBoot","Dubbo","Sharding-JDBC","RocketMQ","Apollo","XXL-Job"]},{"title":"支付核心（5.4亿用户、4000万月活）","type":"核心开发者","startDate":"2013-12","endDate":"2016-07","bullets":["背景：翼支付，Top 3移动支付平台，5.4亿用户、500万商户，活跃TPS 3000+，大促TPS 2w+，资金零差错是铁律","支付路由引擎：管理30+渠道智能路由，按成功率/延迟/费率/限额多维加权评分动态选最优通道，异常渠道30秒自动摘除+探测恢复，年度节省渠道成本数千万，支付成功率82%→95.8%","对帐清算体系：日均1500万笔三方对帐（内部流水 vs 渠道回单 vs 商户帐单），MapReduce分片+双向匹配算法，自动识别四类异常，帐务准确率99.999%","加频帐户：头部商户余额更新QPS达数千，设计记帐流水化架构——交易只写流水不更新余额行，定时归并流水到余额快照，查询用「快照+未归并流水SUM」实时计算，性能提升300%且帐务严格准确","敏感数据合规：PCI-DSS合规下的加密存储+模糊查询，分段加密+滑动窗口分词方案，模糊搜索转精确匹配，查询性能无退化","高可用集群：PXC多主同步复制保证支付强一致读，MyCat分库分表水平扩展，双机房主备RTO<30秒，全年可用性99.99%","收益：日均1500万笔支付，TPS 3000+（大促2w+），核心链路SLA 99.9%，年度资金差错0笔"],"tags":["Spark","Dubbo","MyCat","Redis","RabbitMQ","QlExpress"]}],"skills":[{"name":"后端框架","items":["SpringBoot","SpringCloud & Alibaba","Dubbo","Nacos","Sentinel","Gateway"]},{"name":"数据存储","items":["MySQL","ShardingSphere","Redis","ES","DynamoDB","Doris"]},{"name":"中间件","items":["RocketMQ","RabbitMQ","Nginx","Keepalived","XXL-Job","Apollo"]},{"name":"大数据 & 实时计算","items":["Flink","Spark","Doris","用户画像","智能推荐","漏斗分析"]},{"name":"云原生 & DevOps","items":["Docker","Kubernetes","KubeSphere","AWS EKS","GraalVM Native","Skywalking"]},{"name":"语言","items":["Java","Kotlin","SQL"]}],"contact":[{"label":"Email","url":"mailto:jimmy86@163.com"},{"label":"电话","url":"tel:18974600000"}],"meta":{"updatedAt":"2026-05-23T06:43:29.067Z"}}