Every week, another breathless headline declares software engineering dead. Another AI demo shows a chatbot building a full-stack app in 90 seconds. Another LinkedIn thought leader posts a funeral wreath emoji next to the words "traditional coding." And every week, I watch senior engineers at real companies quietly doing something that looks nothing like those demos. They're not typing code line b
So far, we’ve covered: why MCP exists what MCP is what tools are Now let’s answer a key question: When the model decides to use a tool… who actually runs it? An MCP server is: The component that exposes tools and executes them. An MCP server is not just your backend. It is: a layer on top of your backend designed specifically for LLM interaction It has three main responsibilities: It tells the sys
Lately, I’ve been reflecting on something: The question for most developers is no longer "Are you using AI?", but rather "How and why are you using AI?". I’ve noticed AI tooling becoming increasingly embedded in my daily workflow. At this time last year, my usage of AI was limited to code autocomplete suggestions in my IDE that I would manually validate. Now I am using coding assistants to help id
Every few years the industry rediscovers that programming languages are not religions. Then we immediately behave like they are religions. Someone posts a benchmark. Someone else says memory safety. Someone says developer experience. A distributed systems person appears from under a bridge and whispers “Erlang solved this in 1998.” A startup founder announces they are rewriting their CRUD app in R
An opinionated list of Python frameworks, libraries, tools, and resources
Becoming a tech lead was the goal from pretty early in my career. I had a clear picture of what the role was. More responsibility, more influence over the work, more of the interesting problems landing on my desk because someone had to figure them out and that someone, finally, would be me. It read like the natural next step. The thing you graduate to once you're good enough. What that picture did
Reaching an annual salary of ¥8,000,000 is often seen as a major milestone for software engineers in Japan in 2026. On paper, it sounds like a ticket to a comfortable, upper-middle-class life in Tokyo. But is 8 million yen a good salary in Tokyo—really? But if you are coming from abroad—or if you've only looked at the "Gross" figure on your offer letter—you might be walking into a "logic bug" that
Background A nasty surprise Last summer while trying to deliver a feature for one of our customers, I encountered a nasty situation. The software we were developing, depended on a production grade license of Gurobi. People were on vacations except of my team and some unrelated staff, so developing the feature was in principle blocked. As I learnt due to some other situations, research