Field Notes
The work between the architecture diagrams.
Product stories, production failures, difficult trade-offs, management decisions, and personal lessons from building systems that had to work outside a clean engineering document.
What lives here
Start here
Notes from the field
We Made the Worker Faster and the Product Slower
A local throughput win moved the bottleneck into the customer path.
The Migration Was Safe Until We Needed Rollback
Forward compatibility was tested. The reverse direction was not.
The Feature Flag Had No Owner
A temporary rollout control became permanent production state.
Support Needed a Truthful Answer, Not Another Dashboard
Making an ambiguous operation legible and safely recoverable.
The Best Fix Deleted a Workflow
We removed the reason for a process instead of automating its scar tissue.
The Incident Needed an Owner, Not Another Channel
Coordination, command, and reversible decisions under pressure.
The Microservice We Chose Not to Build
Preserving a domain boundary without distributing it before the evidence arrived.
The Hardware Did Not Read the API Contract
Timing, partial truth, and software around a physical system.
The Dashboard Was Green. The Customer Was Stuck.
Why observability starts with the customer operation.
The Demo That Changed the Roadmap
Correct software was answering the wrong question.
The Architecture Is Not the Product
What Saleslyt, Myotrek, healthcare services, and offline payments taught me about engineering for the real constraint—not the impressive diagram.
The story map
Four trails I will keep documenting
- Product realityWhen a technically correct system solves the wrong customer problem.
- Dirty engineeringIncidents, migrations, shortcuts, rollbacks, and repairs without a perfect greenfield.
- Management under uncertaintySequencing, ownership, hiring, disagreement, and decisions made before certainty arrives.
- The person doing the workAmbition, doubt, relationships, attention, and the cost of staying close to the problem.