# engineering log

> A software engineering blog covering systems programming, performance optimization, distributed systems, Rust, and developer tooling.

- [About](/about/): Ashutosh Kumar — backend engineer writing about systems programming, performance, and building software that works.
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- [Privacy Policy](/privacy/): Learn how we collect, use, and protect your personal data, what rights you have over your information, and how to contact us with questions.
- [Blog](/blog/): Articles about software engineering, systems programming, developer tools, and whatever else I'm learning about in my journey as a software engineer.

## Blog

> Articles about software engineering, systems programming, developer tools, and whatever else I'm learning about in my journey as a software engineer.

- [Why I Rewrote Our Hot Path in Rust](/blog/why-i-rewrote-our-hot-path-in-rust/): A Go service was burning 40% CPU on JSON serialization. Here's how a targeted Rust rewrite via FFI cut latency by 3x and what I learned about when rewrites are actually worth it.