Harikrishnan Prabakaran
Principal Member Of Technical Staff at Oracle
Chennai, Tamil Nadu, India
Summary
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Senior🎓
Top SchoolHarikrishnan Prabakaran is a Principal Member of Technical Staff with 11 years of experience building high-performance database engines and HPC systems where microseconds matter. He has driven major performance wins at Oracle MySQL HeatWave—vectorizing DISTANCE functions, implementing SIMD-optimized HyperLogLog, and halving costs via adaptive query strategies and memory optimizations across 100s of nodes. Previously at Zoho he built a PostgreSQL-based columnar engine with 10x OLAP speedups, runtime code generation, vectorization, and ACID in-memory storage; at KLA he designed ultra-low-latency executors and shared-memory communications for HPC DAGs. He combines deep systems-level C++ expertise with practical tooling work (a custom clang-tidy plugin) to automate large-scale code migrations and resource tracking. Based in Chennai, he focuses on squeezing performance out of modern CPUs and architectures while improving cloud price-performance and operational scalability.
11 years of coding experience
2 years of employment as a software developer
Bachelor of Technology - BTech, Electrical, Electronics and Communications Engineering, Bachelor of Technology - BTech, Electrical, Electronics and Communications Engineering at Shanmugha Arts, Science, Technology and Research Academy
Tamil, English
Github Skills (58)
million10
vscode-extension10
libclang10
godbolt10
highlighting10
cpp10
c-extension10
setuptools9
microsoft9
c-language9
lldb9
linux9
typescript9
cmake9
windows9
Programming languages (6)
Github contributions (5)
harikrishnan94/sheap
Sep 2019 - Feb 2021
Contributions:21 commits, 15 pushes, 1 branch in 1 year 4 months
harikrishnan94/ktl
Feb 2023 - Mar 2025
Minimal and Safe C++ standard library usable for Kernel and other bare metal developments
Contributions:4 releases, 119 PRs, 161 pushes in 2 years 1 month
bare-metalcppcpp20embeddedkernel
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