I'm a software engineer and an Apache Software Foundation Member, passionate about clean code, distributed systems, cloud-native infrastructure, big data, and AI engineering.
I enjoy building reliable platforms, studying how complex systems behave in production, and turning operational experience into better architecture and open-source contributions.
- Large-scale data scheduling and workflow orchestration
- Apache Spark, Kubernetes, and cloud-native batch workloads
- Distributed system reliability, observability, and performance
- LLM serving and Text-to-SQL applications
- Open-source projects in the Apache and CNCF ecosystems
Java · Go · Python · Scala · Spring Boot · Apache Spark · Apache Flink · Kubernetes · Volcano · DolphinScheduler · Kafka · MySQL · Prometheus
Open source is an important part of how I learn, build, and collaborate. I'm especially interested in projects around distributed scheduling, data infrastructure, and cloud-native computing.
- GitHub: @ruanwenjun
- LinkedIn: Wenjun Ruan
Keep building. Keep learning. Keep it simple.






