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LIU HONGYE / Java Expert / Data Architect / Technical Team Lead
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High-concurrency systems · risk control · AI graduate study
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Tokyo, Japan
I build resilient backend systems, high-scale data infrastructure, and business-facing technical solutions. A bridge between complex code and business value.
Experienced in billion-level messaging, distributed systems, and mission-critical backend stability.
Capable of aligning engineering execution with stakeholder goals in international teams.
Strong fit for backend architect, technical lead, data platform, and risk-control engineering positions.
Backend and data architecture engineer with strong hands-on experience in distributed systems, risk-control platforms, large-scale indexing, and high-traffic stability.
Strong at aligning technology with business value, communicating with stakeholders, and leading engineering execution in international environments.
Reduced QPS pressure by over 90% through bitmap-based multi-platform push optimization and millisecond-level querying.
Owned risk-control middle platform design, asynchronous settlement architecture, and SLA stability during global traffic peaks.
Spring Cloud / TiDB / ElasticSearch / Kafka / Redis / Sentinel / Grafana / XXL-JOB
Reduced media storage cost by over 70% and improved search efficiency by about 80% through architecture and query optimization.
Worked on media systems, high-concurrency comments, search migration, JWT + RBAC security, and content audit support.
Spring Boot / MongoDB / ElasticSearch / RabbitMQ / Wasabi Cloud / JWT
Enabled core digital transformation by migrating monolithic flows into scalable services with reliable order assembly and delivery logic.
Led backend delivery for order management, merchant coordination, distributor sorting, and WeChat OAuth2 permission separation.
Spring Cloud Gateway / Nacos / OpenFeign / Redis Geo / MySQL
Compressed controller-to-DAO latency to around 150ms and supported millions of active users with multi-level caching strategy.
Worked on distributed services, legacy refactoring, shell automation, and database performance optimization with DBA collaboration.
Spring / Dubbo / Zookeeper / Redis + Caffeine / Kafka / MySQL / Shell
Northern Arizona University
Qingdao Agriculture University
Sports, day trading, reading, AI, Web3, macro economics, history, psychology, health.
Able to design, implement, and stabilize backend systems under real business pressure.
Experienced in sprint planning, technical coordination, and cross-team delivery.
Good at translating complex systems into business language for stakeholders and management.