Honest takes on architecture, AI, and the developer career — written by senior engineers with deep production experience.
Every article comes from real production systems. No ghostwriters, no SEO churn, no AI filler. If a topic isn't here, it's because we haven't lived it yet.
14 articles · 4 languages · 8 min average read
What Is IT, Really? A Plain-Language Map of the Four Career Paths
If you're new to IT or just landed from search, read this first. It explains the whole site's mental model — four tracks, five career stages, restaurant analogies — in five minutes.
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Three most recent — regardless of track.
Durable Execution for Agents: The Fifth Discipline Your .NET Background Already Prepared You For
Spec is the truth. Context is the assembly. Evals are the proof. OpenSpec is the operating system. The substrate underneath — the thing that keeps a multi-step agent alive across retries, restarts, and the human-in-the-loop who walks away from their desk at 5pm — is durable execution. Every .NET engineer who's ever shipped a MassTransit saga already understands the pattern; here's how it maps onto serious AI agents in 2026, and why it's the fifth discipline that finally closes the arc.
OpenSpec in 2026: The Operating System for Spec-Driven Development
Six weeks ago I installed @fission-ai/openspec. Yesterday I shipped a 14-file change in 90 minutes from a 200-line spec, in a brownfield codebase three engineers have been editing for two years — no merge conflicts, no review escalation. This is the senior-architect deep-dive on why OpenSpec is the first SDD tool that doesn't collapse under production reality.
Evals in 2026: The Test Suite for Systems That Aren't Deterministic
Your AI feature worked yesterday and fails today. No code change, no prompt change, no model change. That's what life without evals looks like. This is the third leg of the spec → context → evals trinity — and the discipline most teams skip.
Featured Articles
Cornerstone reads. If you only have time for three, start here.
Durable Execution for Agents: The Fifth Discipline Your .NET Background Already Prepared You For
Spec is the truth. Context is the assembly. Evals are the proof. OpenSpec is the operating system. The substrate underneath — the thing that keeps a multi-step agent alive across retries, restarts, and the human-in-the-loop who walks away from their desk at 5pm — is durable execution. Every .NET engineer who's ever shipped a MassTransit saga already understands the pattern; here's how it maps onto serious AI agents in 2026, and why it's the fifth discipline that finally closes the arc.
OpenSpec in 2026: The Operating System for Spec-Driven Development
Six weeks ago I installed @fission-ai/openspec. Yesterday I shipped a 14-file change in 90 minutes from a 200-line spec, in a brownfield codebase three engineers have been editing for two years — no merge conflicts, no review escalation. This is the senior-architect deep-dive on why OpenSpec is the first SDD tool that doesn't collapse under production reality.
Evals in 2026: The Test Suite for Systems That Aren't Deterministic
Your AI feature worked yesterday and fails today. No code change, no prompt change, no model change. That's what life without evals looks like. This is the third leg of the spec → context → evals trinity — and the discipline most teams skip.
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Talk with a senior engineer from our team. Career-changers and team leaders welcome. No sales pitch — we listen, then suggest.
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Five minutes with the roadmap. The honest version of which IT track fits which kind of person.
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Backend 11
Durable Execution for Agents: The Fifth Discipline Your .NET Background Already Prepared You For
Spec is the truth. Context is the assembly. Evals are the proof. OpenSpec is the operating system. The substrate underneath — the thing that keeps a multi-step agent alive across retries, restarts, and the human-in-the-loop who walks away from their desk at 5pm — is durable execution. Every .NET engineer who's ever shipped a MassTransit saga already understands the pattern; here's how it maps onto serious AI agents in 2026, and why it's the fifth discipline that finally closes the arc.
OpenSpec in 2026: The Operating System for Spec-Driven Development
Six weeks ago I installed @fission-ai/openspec. Yesterday I shipped a 14-file change in 90 minutes from a 200-line spec, in a brownfield codebase three engineers have been editing for two years — no merge conflicts, no review escalation. This is the senior-architect deep-dive on why OpenSpec is the first SDD tool that doesn't collapse under production reality.
Evals in 2026: The Test Suite for Systems That Aren't Deterministic
Your AI feature worked yesterday and fails today. No code change, no prompt change, no model change. That's what life without evals looks like. This is the third leg of the spec → context → evals trinity — and the discipline most teams skip.
Spec-Driven Development: When Your Spec Becomes the Codebase
I haven't written a function by hand in two months — and the codebase has never been healthier. Here's how spec-driven development changed what 'engineering work' means in 2026, the rules that keep the discipline honest, and where it still falls apart.
Context Engineering: The Discipline That's Replacing Prompt Engineering in 2026
Prompt engineering was never the real skill. After two years of shipping AI features in production, the discipline that actually moves the needle is context engineering — state, tools, retrieval, history, and constraints assembled into the model's window at the right moment. Here's the senior-engineer's frame.
From C# to AI Agents: A .NET Developer's Path to Building with Claude
You already know C#, ASP.NET Core, and how to ship production backends. Here's how to reuse those skills to build serious AI agents with Claude — without throwing away your stack.
Claude Code in Production: What I Learned in 6 Months
Six months of using Claude Code as a daily-driver tool — the workflows that actually save time, the ones that quietly waste it, and the configuration most teams never set up.
When NOT to Use AI Tools as a Developer
Every AI article tells you when to reach for these tools. Almost none tells you when to put them down. After two years of daily use, here's where AI consistently makes engineers worse — and what to do instead.
What Is MCP (Model Context Protocol) and Why Every Developer Should Care
Anthropic's Model Context Protocol is quietly becoming the USB-C of AI integration. Here's what it is, how it works, and why learning it now puts you ahead of 95% of developers.
C# vs Python in 2025: Which Should You Learn First?
A senior engineer's honest take on choosing between C# and Python as your first serious language — based on job market data, learning curve, and long-term career impact.
How to Pass a System Design Interview: A Senior Engineer's Playbook
Most system design advice is theoretical noise. This is the repeatable framework I use to evaluate candidates — and that you can use to pass any system design interview at a mid or senior level.
Frontend 1
The AI Tools Every Developer Should Be Using in 2025
Not a hype list. A practical breakdown of which AI tools actually save time, which ones waste it, and how to build workflows that make you measurably faster.
Career & general 2
We Built a Free Programming Game for Kids — Here's the Curriculum and Why Tiles Beat Scratch
A free browser-based programming game for kids 7–16 and complete beginners. We explain the 10-concept curriculum and why we bridge tiles → blocks → code instead of starting with Scratch.
What Is IT, Really? A Plain-Language Map of the Four Career Paths
A friendly map of what 'IT' actually means — Frontend, Backend, Data, DevOps — for anyone considering the field. Restaurant analogies, an honest career ladder, and a clear answer to 'am I too old?'
Outside reading — videos we trust
We don't recreate what already exists well. These are the talks our team watches when MCP, agent SDKs, and production AI shipping practices evolve.
~6:00:00 AI Engineer World's Fair 2025 — Day 1 Keynotes & MCP Track (ft. Anthropic MCP team)
The MCP track keynote with the Anthropic team. If you want to understand why MCP became the industry-standard protocol for connecting LLMs to tools in 2025, this is the single best primary source.
~2:00:00 Claude Agent SDK — Full Workshop (Thariq Shihipar, Anthropic)
A hands-on workshop from Anthropic on building production agents with the Claude Agent SDK — tool use, sub-agents, hooks, MCP servers, and the patterns that scale beyond the demo.
~8:00:00 AI Engineer World's Fair 2024 — Keynotes & CodeGen Track
The keynote stream from the largest technical AI conference of 2024. A snapshot of the state of AI engineering — what shipped, what worked, what didn't — straight from the teams building it.
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