Divij Vaidya is a Staff Software Engineer with 14 years of experience building high-performance distributed systems and databases, currently at Databricks after leading foundational work at AWS and major contributions across graph and streaming platforms. He helped architect multi‑$100M products—most notably driving throughput, scaling and recovery improvements for Amazon MSK—and has a track record of shipping reliability and cost optimizations at scale (e.g., CPU reductions in Kafka and tiered storage work that halved customer storage costs). A founding engineer and bootstrapper of global teams, he led Berlin’s Neptune engineering launch and authored major query- and observability-related projects across large data fleets. An active open-source leader, Divij is a PMC member/committer on Apache Kafka and Apache TinkerPop with hundreds of contributions and measurable client/server performance wins (client init from 2046ms to 2ms; WebSocket I/O up 75%). He blends hands-on backend and front-end work—from varint32 encoding improvements in Kafka to UX tweaks on the kafka-site—while routinely driving open-source strategy and incident response for widely used technologies.
14 years of coding experience
4 years of employment as a software developer
Bachelor of Technology (B.Tech.) Information Technology, Bachelor of Technology (B.Tech.) Information Technology at Indian Institute Of Information Technology Allahabad
Contributions:1237 reviews, 34 commits, 267 PRs in 9 months
Contributions summary:Divij primarily worked on back-end code related to Kafka's internal systems. Their contributions include modifying and testing the `LogCleanerManagerTest` and `ProducerStateManagerTest` classes, indicating work on log management and producer state handling. They also added integration tests for the `DeleteRecords API` and fixed a flaky test in the topic command integration test, enhancing the functionality and stability of the system. Additionally, they implemented a performance improvement by optimizing the `varint32` encoding and decoding.
Contributions:116 reviews, 50 commits, 45 PRs in 1 year 6 months
Contributions summary:Divij primarily contributed to reordering import statements in Java files and fixing a merge issue, indicating involvement in code maintenance and ensuring build stability. The code changes include modifications to several Java files related to the TinkerPop graph computing framework, including core and test files. These changes demonstrate the user's focus on code organization and build processes within the context of the Apache TinkerPop project.
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Divij Vaidya - Staff Software Engineer at Databricks