/Recent content on engineering logHugoen-USCopyright © 2026 engineering logSat, 25 Jul 2026 00:00:00 +0000/blog/why-i-rewrote-our-hot-path-in-rust/Sat, 25 Jul 2026 00:00:00 +0000/blog/why-i-rewrote-our-hot-path-in-rust/A Go service was burning 40% CPU on JSON serialization. A targeted Rust rewrite via FFI cut p99 latency by 3x./about/Mon, 13 Jul 2026 00:00:00 +0000/about/<div class="about-header"> <img src="https://avatars.githubusercontent.com/u/70029422?s=400&u=1f7bbce1ab09549ddf4ef07a43e24a5e56fd1599&v=4" alt="Ashutosh Kumar" class="about-avatar" width="120" height="120" loading="eager" /> <div class="about-intro"> <p class="about-name">Ashutosh Kumar</p> <p class="about-role">Backend Engineer · Systems & Performance</p> <div class="about-links"> <a href="https://github.com/bravo1goingdark">GitHub</a> <a href="https://x.com/ashutoshkumaarr">Twitter</a> <a href="https://linkedin.com/in/bravo1goingdark">LinkedIn</a> </div> </div> </div> <p>I&rsquo;m a software engineer who likes to understand how things <em>actually</em> work — from compilers and runtimes to distributed systems and developer tooling. I don&rsquo;t just wire up APIs; I care about throughput, latency, and correctness. The language is a tool, not the point. If the profiler says the bottleneck is in the allocator, I&rsquo;ll go read the allocator.</p>/404/Tue, 17 Feb 2026 13:06:19 +0100/404/<p>Sorry, we can&rsquo;t find the page you&rsquo;re looking for.</p> <p>Use the navigation above or go back to the <a class="link link--text" href="/">homepage</a>.</p>/privacy/Thu, 07 Sep 2023 17:19:07 +0200/privacy/<p>We value your privacy and are committed to protecting your personal data. This Privacy Policy explains what information we collect, how we use it, and the choices you have.</p>