Prashant Varanasi
Member Of Technical Staff at Anthropic
San Francisco, California, United States
Summary
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Top expert inCloud-Native Full Stack Development
Prashant Varanasi is a seasoned software engineer with 15 years of experience, currently a Member of Technical Staff in San Francisco at Chronosphere. As a Distinguished Software Engineer at Uber he led the Software Networking team and was the primary author of a high-scale load balancer that handled tens of millions of RPS across HTTP/1.1, HTTP/2, gRPC and TChannel, and he drove automation for cross-zone service migrations and canary zones. He is a strong Go expert and active open-source contributor to prominent projects such as uber-go/zap, tchannel, goleak and atomic, where his work spans logging, RPC infrastructure, goroutine leak detection and concurrency primitives. His contributions mix low-level robustness (stack parsing, atomic wrappers, leak verification) with practical UX and accessibility improvements (e.g., a Zoom-control Raycast extension), reflecting a rare blend of large-scale systems, performance tooling and attention to developer experience. He holds a BSc (Hons) in Computer Science with High Distinction from UNSW and consistently improves reliability through testing, refactors and pragmatic engineering.
15 years of coding experience
18 years of employment as a software developer
Bachelor of Science (B.Sc.) with Honours, Computer Science, High Disctinction, Bachelor of Science (B.Sc.) with Honours, Computer Science, High Disctinction at University of New South Wales
Stackoverflow
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Github Skills (42)
algorithm10
api-doc10
unit-testing10
algorithms10
javascript10
ropc10
atomics10
datastructure10
applescript10
testing10
drpc10
raycast10
datastructures10
ray-casting10
structured-logging10
Programming languages (21)
Github contributions (5)
uber-go/atomic
May 2016 - Jul 2021
Wrapper types for sync/atomic which enforce atomic access
Role in this project:
Back-end Developer
Back-end DeveloperContributions:4 releases, 16 reviews, 31 commits in 5 years 2 months
Contributions summary:Prashant primarily contributed to the development of the `uber-go/atomic` repository, focusing on creating and maintaining atomic wrappers for Go data types. They implemented wrappers for `int32`, `int64`, `uint32`, `uint64`, and `String` types, ensuring thread-safe operations. The user's commits reveal a deep understanding of concurrency and atomic operations in Go, with significant changes to ensure data integrity and efficient access within concurrent environments. They also addressed issues and refactored code, highlighting their proficiency in maintaining and improving the codebase.
enforcetypescriptatomicsync
uber-go/goleak
Nov 2017 - May 2021
Goroutine leak detector
Role in this project:Back-end Developer
Back-end DeveloperContributions:2 releases, 22 reviews, 29 commits in 3 years 6 months
Contributions summary:Prashant focused on improving the `goleak` tool, a Goroutine leak detector. They implemented stack parsing logic, adding a new package for stack manipulation and incorporating unit tests to validate its functionality. Furthermore, the user created options to filter stacks, adding features for retries and ignoring specific functions and library calls like signal and trace package. This involved modifying core components, including adding `FindLeaks` and `VerifyNoLeaks` functions.
golangleakdetectorgogoroutine
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