David Buchan

David Buchan

Nov 11

I wrote four file tools and made sure every destructive path is defensive

#python #automation #testing #cli

3 min read

David Buchan

Nov 9

My README claimed 50 SQL templates and shipped 8. Now the tests enforce the claim.

#sql #testing #python #devops

3 min read

David Buchan

Nov 6

How I built a reproducible SQL and pandas pipeline from raw data to executive summary

#sql #python #dataanalysis #pandas

2 min read

David Buchan

Oct 30

How I built a CI-safe eval harness for structured LLM output

#ai #machinelearning #llm #python

1 min read

David Buchan

Oct 27

Fine-tuning a YOLO26 classifier on trading-livestream screen captures - with a Whisper + VLM labeling flywheel

#ai #machinelearning #computervision #python

4 min read

David Buchan

Oct 21

Practical patterns for LLM scoring in n8n workflows

#ai #automation #n8n #tutorial

3 min read

David Buchan

Oct 16

Anyone can claim to be an up-and-coming AI engineer. Here are my receipts instead.

#career #ai #data #beginners

2

3 min read

David Buchan

Oct 11

Wie ich eine KI gebaut habe, die meine Jobsuche übernimmt

#ai #automation #career #deutsch

3 min read

David Buchan

Oct 9

Errors are data: what building a small ETL framework taught me

#python #data #testing #tutorial

3 min read

David Buchan

Oct 8

I built an AI that finds and scores my next job

#python #ai #career #automation

4 min read

DEV Community

Badges

Writing Debut

I wrote four file tools and made sure every destructive path is defensive

My README claimed 50 SQL templates and shipped 8. Now the tests enforce the claim.

How I built a reproducible SQL and pandas pipeline from raw data to executive summary

How I built a CI-safe eval harness for structured LLM output

Fine-tuning a YOLO26 classifier on trading-livestream screen captures - with a Whisper + VLM labeling flywheel

Practical patterns for LLM scoring in n8n workflows

Anyone can claim to be an up-and-coming AI engineer. Here are my receipts instead.

Wie ich eine KI gebaut habe, die meine Jobsuche übernimmt

Errors are data: what building a small ETL framework taught me

I built an AI that finds and scores my next job