The Engineer&#x27;s Brief.

MGMohamed Ghassen BrahimMay 11, 20269 min read

I Audited 25 Azure Bills. Here's Where the Money Actually Leaks.

After auditing dozens of Azure bills across enterprises and scaleups, the same five line items account for most of the waste. Here's what to look for first.

AI & Machine Learningdiagram

87% of AI Projects Never Ship. I Rebuilt 4 That Did — Here's the Difference.

The gap between an AI demo and an AI product is where most projects quietly die. Here's what actually separates the 13% that ship from the 87% that don't.

MGMohamed Ghassen BrahimJanuary 4, 20269 min read

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CTO Leadership

Fractional and interim CTO craft, hiring, board communication, and running technology organizations.

AI & Machine Learning

Shipping AI to production — MLOps, RAG, agentic systems, and the economics of LLM infrastructure.

Cloud, Azure & Cost

Azure architecture, cloud migration, reliability, and the FinOps discipline that keeps the bill sane.

Security & Compliance

Zero trust, application and supply-chain security, and the compliance regimes that now carry real fines.

Architecture & Platform

System design, platform engineering, data and API architecture, and modernizing legacy without a freeze.

Startups & MVP

Technical decisions for early-stage companies — MVP architecture, build-vs-buy, and due diligence.

Strategy & Transformation

Technology strategy, digital transformation, benchmarks, and managing technical debt as a business number.

Teams & Culture

Developer experience, team topologies, on-call, and the human side of engineering leadership.

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176 essays

MGMohamed Ghassen BrahimJune 9, 20269 min read

Cloud Bill Benchmark: What Companies Like Yours Actually Pay Per Engineer

Normalize cloud spend per engineer and you finally get a number you can argue with. Here's what the benchmarks show across sectors and company sizes.

Startups & MVPNew

The Build-vs-Buy Memo I Write for Every Board Decision

Here is the one-page memo template I use to make build-vs-buy decisions defensible to a board — structured, honest, and impossible to fudge.

MGMohamed Ghassen BrahimJune 9, 20268 min read

MGMohamed Ghassen BrahimJune 9, 20268 min read

The 6-Month "AI Transformation" That Should've Been a 2-Week Prompt

Some AI transformations are elaborate ways to avoid shipping the simple thing that works. Here's how to tell the difference — and stop confusing activity with progress.

CTO LeadershipNew

Fractional CTO vs Interim CTO: Which One Do You Actually Need?

Fractional and interim CTOs solve different problems. Here's the clear difference, a side-by-side comparison, and a simple test to know which one fits your situation.

MGMohamed Ghassen BrahimJune 8, 20267 min read

Startups & MVPNew

What Is a Fractional CTO? A Founder's Guide (2026)

A plain-English guide to what a fractional CTO actually does, what it costs, when to hire one, and how it differs from interim, advisory, and full-time — written by a working fractional CTO.

MGMohamed Ghassen BrahimJune 8, 202611 min read

MGMohamed Ghassen BrahimJune 6, 20269 min read

Multi-Tenant SaaS: The Isolation Model That Won't Get You Breached or Bankrupt

Tenant isolation is the SaaS decision that quietly sets your security and your cost ceiling. Get it wrong and you'll pay for it twice — once to a lawyer, once to your cloud provider.

Startups & MVPNew

Stop Hiring a VP of Engineering Before You Have Engineering to Lead

Hiring a VP Eng for a team of four is how you buy process you don't need and lose the builders you do. Here's the sequencing that actually works.

MGMohamed Ghassen BrahimJune 6, 20268 min read

MGMohamed Ghassen BrahimJune 6, 20269 min read

The "AI Tax" Report: How Much Slower/Faster Teams Ship With Copilots

AI coding assistants help and hurt velocity in ways the headline numbers hide. Here's what the data and my own observations actually show — and where teams go wrong.

CTO LeadershipdiagramNew

I've Done 90-Day CTO Engagements at 6 Companies. The Pattern Is Always the Same.

Different industries, same three problems waiting in the first 90 days. Here's what I find every time — and what to do about it before I arrive.

MGMohamed Ghassen BrahimJune 6, 202610 min read

MGMohamed Ghassen BrahimJune 3, 20268 min read

Our "99.99% Uptime" SLA Met by a Spreadsheet and a Prayer

Impressive SLAs are often backed by manual heroics nobody wants to admit. Here's what I found inside the infrastructure behind one of them — and what it actually costs.

CTO LeadershipdiagramNew

The Board Deck Slide That Turns Engineering From Cost Center to Moat

One reframing turns the engineering line item from a cost to defend into a moat to invest in — here is exactly how to build that slide.

MGMohamed Ghassen BrahimJune 3, 20268 min read

CTO LeadershipNew

The Interim CTO You Call at 2am: Leadership When the CTO Just Quit

When your CTO walks out mid-quarter, the first 72 hours decide whether it is a wobble or a crisis. Here is what to do, in order.

MGMohamed Ghassen BrahimJune 3, 20269 min read

MGMohamed Ghassen BrahimMay 31, 20269 min read

The Reference Architecture for a Regulated, Multi-Region Azure App

Here is the multi-region Azure pattern I keep reaching for in regulated environments — hub-spoke networking, active-passive data, and compliance baked in from the start.

MGMohamed Ghassen BrahimMay 31, 20269 min read

What It Costs to Be SOC 2 Compliant (The Invoice Nobody Shows You)

The audit fee is the small number. Here is the full invoice for SOC 2 — in euros, weeks, and engineering hours that most compliance guides quietly omit.

MGMohamed Ghassen BrahimMay 28, 20268 min read

A Hardcoded Credential Cost a Client €1.2M. Here's the 20-Minute Fix They Skipped.

A single committed secret turned into a seven-figure incident. The prevention was twenty minutes of tooling setup. Here's exactly what happened and what to do instead.

MGMohamed Ghassen BrahimMay 28, 20268 min read

Hiring Engineers in 2026: The Take-Home Is Dead, Here's What Replaced It

AI quietly killed the take-home assignment. The hiring loops that work now look nothing like what most teams are still running. Here's the updated playbook.

MGMohamed Ghassen BrahimMay 26, 202610 min read

The 2026 Enterprise AI Adoption Report: What's in Prod vs in Slides

Enterprise AI adoption looks very different depending on whether you count slideware or shipped features. Here's what the data and my own fieldwork actually show.

Security & ComplianceNew

The "Compliance Theater" Audit That Passes You and Protects No One

Passing the audit and being secure are two different projects. Most companies only fund the first — and discover the gap at the worst possible moment.

MGMohamed Ghassen BrahimMay 25, 20268 min read

Startups & MVPdiagramNew

What a Fractional CTO Actually Costs vs the €280k You'd Pay Full-Time

The honest, fully-loaded math on a fractional CTO versus a full-time hire — what you get, what you pay, and when each model makes economic sense.

MGMohamed Ghassen BrahimMay 25, 20268 min read

Architecture & PlatformdiagramNew

API-First, Decided: The Contract That Stopped 3 Teams From Fighting

An API contract is an organizational tool as much as a technical one. Here's how a single design decision ended months of cross-team friction and shipped a product on time.

MGMohamed Ghassen BrahimMay 23, 20268 min read

CTO LeadershipdiagramNew

Fractional, Interim, Advisory, or Full-Time? A Decision Tree, Finally.

Four engagement models get used interchangeably. They shouldn't. Here's a precise framework for picking the right one — and why the wrong choice is expensive.

MGMohamed Ghassen BrahimMay 23, 20269 min read

Architecture & PlatformdiagramNew

The Data Pipeline That Was Silently Wrong for 6 Months (And How We Caught It)

The worst data bug is not the one that crashes. It is the one that quietly reports the wrong number — and this is a story about finding one six months too late.

MGMohamed Ghassen BrahimMay 20, 20269 min read

MGMohamed Ghassen BrahimMay 17, 20268 min read

Reserved Instances Are a Trap If You're Still Growing. Do This Instead.

Committing to reservations during hypergrowth locks you into yesterday's architecture — and the savings rarely survive the first major re-platform.