Senior Java Engineer | 12+ Years of Experience in Distributed Systems & Backend Architecture
Iโm a highly experienced backend engineer specializing in Java and the Spring ecosystem. Over the past 12 years, Iโve led the design and development of high-availability, high-throughput distributed systems serving over 30,000 daily active users.
My expertise spans system architecture, performance optimization, and microservice orchestration using Spring Boot, Kafka, Redis, Elasticsearch, and Docker/K8s. Iโm also proficient in tuning SQL and NoSQL databases for large-scale enterprise workloads.
Iโm a hands-on developer, a system thinker, and a clean code advocate. I thrive in asynchronous remote environments with well-documented workflows and am confident working across time zones and agile teams.
| ๐ Location | ๐จ๐ณ China |
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rok.co/@weiwei_han |
| ๐ Website | sdfljasfjkhsdfajsf โญ๏ธ Upgrade to Premium to contact |
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sdfljasfjkhsdfajsf โญ๏ธ Upgrade to Premium to contact |
| Skilled in | java spring boot spring cloud microservices restful apis kafka redis elasticsearch mysql postgresql hibernate system design multithreading concurrency jvm tuning clean code |
| Fluent in | putonghuaenglish |
| Preferred timezone | +8 |
| Preferred annual pay (min) | $50,000/year |
| Preferred hourly pay (min) | $54/hour |
| Last seen | 6 months ago |
| Signed up | 6 months ago |
| Badges |
๐จโ๐ป Remote worker ๐จ Maker |
2023 - present: Senior Java Software Engineer @ Bosch Innovative Software Development (Wuxi)
2022 - 2023: Tech Lead @ Shanghai Weifeng Technology Co., Ltd.
2019 - 2022: Java Developer (Review Systems) @ Shanghai Yitan Network Technology Co., Ltd.
2018 - 2019: Java Developer @ Zhangmen Education (Shanghai)
2016 - 2018: Backend Developer @ Sande Payment Network Services
2023 - 2025: BOCT Goods Issue Automation Platform
2022 - 2023: Review Task Engine & Gateway Refactor
2009 - 2013: Bachelorโs Degree in Computer Science and Technology @ Zijin College, Nanjing University of Science and Technology