Sergey Tselovalnikov
@SerCeMan
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Building distributed systems @ Canva
Sydney, New South Wales
Joined November 2010
Just published a new blog post, "JVM Field Guide: Memory". The guide covers typical issues you might face when maintaining JVM apps out there in the field. Give it a read if you enjoy the topic, or share it with someone interested in learning the ropes.
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There are plenty of articles online describing dozens of ways to improve code reviews. I just published one that only contains two rules. I believe these are the ones that actually make a difference.
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Great talk! Do benchmarking, not benchmarketing!.
Sorry, again another case of bench-marketing. see for more info on #benchmarketing.
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Best practice, industry standard, security posture – all of these are what I call "Justification Filler Phrases". None of them convey real meaning, and yet many love using them everywhere. I don't, so I just published a new blog post explaining why.
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Often, to be 10x more productive, engineers need more agency, not more agents.
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Just published a new post with my thoughts on the relationship between vibe coding and software engineering. Spoiler: it's not pretty.
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Looks like reliability sometimes gets in the way of latency.
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Imagine a world where you don't get frustrated with your apps and websites – a world where computers immediately respond to your actions. We don't talk about latency enough. Latency isn't just about HFT. I'm getting this book now!.
📣Deal of the Day📣 Mar 2. SAVE 45% TODAY ONLY! . Latency & selected titles: @penberg. Practical techniques for delivering low #latency software. #lowlatency #edgecomputing
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The best form of retrieval (R) in RAG is an IntelliJ index lookup. Change my mind.
I have been using @jetbrains Junie for a while now and I can already feel the brain atrophy happening. I used to make fun of people that talked about writing code but did not write code themselves [1], but now I have become one of those bozos myself; I just talk about writing.
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I haven't listened to good nerdcore in a while. This time, it's proper metal.
Our " song was tragically interrupted by a NullPointerException, but fear not!. With the power of @intellijidea, we declare boolean metal = true; and deliver our music bug-free. DEATH TO FALSE VARIABLES!.
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This is an interesting perspective on individual impact vs company-wide impact.
What is the impact of AI across different levels of seniority?. Over the weekend, I read Sergey Tselovalnikov’s post on AI Impact Curves. The software engineering curve reveals an intriguing pattern. Junior engineers experience both benefits and risks from AI. Staff+ engineers
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I have a theory about why there's so much debate online about LLMs' impact on software engineers, and I believe it can be explained by a simple curve. In this post, I’ll elaborate on why the curve looks the way it does.
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And this is why Netty is the king of networking libraries. What other library would be scrutinised enough to inspect the ASM code JIT produces, yet still include all modern networking stack components?.
any perf folk want some fun on @netty_project? #nerdsniping.
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You thought it was the product engineers who get to play with the coolest LLM tech in large companies?. Wrong! It's the platform engineers who now have to build agents and LLM scripts to handle repo-wide migrations that would have previously been done by hand!.
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I now understand why I remember the podcasts I listen to while exercising quite well.
Here's the latest Huberman Lab episode: How to Use Exercise to Improve Your Brain’s Health, Longevity & Performance. This Huberman Lab episode is available in full on X, YouTube and all podcast platforms. (0:00) Exercise, Brain Health & Performance; Protocols Book.(4:03)
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RT @vivekgalatage: The series on Chromium, "Inside Look at Modern Web Browser," is a visual treat that gives an overview of what happens wh….
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New year, new blog post: "Six Sins of Platform Teams". In this article, I share my personal mental model for platform teams' sins (anti-patterns), and how you can avoid committing them.
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💪.
Health tip for 2025: Use the time you save with AI doing the heavy mental lifting to boost your health by lifting more physical weights.
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