Software engineer · Toronto

Bringing your ideas to life through software.

Twenty years building systems that scale, mostly in Java. The tools are changing fast — but getting the domain model right still matters more than any of them.

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allan@toronto — zsh

// latest writing

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Jun 7, 2026 Don't outsource the thinking Developers are starting to refuse to work without AI. The tools were never the problem — handing over the part that thinks is. aiengineeringcraft
May 30, 2026 Modeling the domain first Why I reach for the domain model before the framework, the database, or the API. engineeringdomain modeling

// what I'm working on

live from GitHub & WakaTime

GitHub contributions

3,451 · past year

JulAugSepOctNovDecJanFebMarAprMayJunJul

Less More

Commits 0%Reviews 66%Pull requests 34%Issues 0%

Agent activity

on WakaTime

$235spend · 7d

Fable

$160 · 1,407 lines

GPT

$66

Opus

cost share · 3 agents · actual spend

</> line changes 27% AI · 1,407 ai / 3,797 human

Tokens

67.4M67.2M in · 209.2K out

Prompts

102826 chars avg

Sessions

15~7 prompts each

AI pairing

2h 57m5.1% of coding time

Coding activity

7h 40m · last 7 days

Languages

Java39.33%SQL23.63%TypeScript17.68%Markdown5.08%Kotlin3.57%Java Properties2.06%YAML1.74%JSON1.51%HTML1.27%Properties1.19%CSS1.03%Git Config0.79%Image (svg)0.48%Bash0.4%Groovy0.08%GitIgnore file0.08%HTTP Request0.08%

Editors & Tools

cmux33.34%SparkDesktop13.78%Claude Code10.44%Unknown Editor6.63%Fork4.78%IntelliJ IDEA4.3%DataGrip4.22%ClickUp4.2%Slack3.57%GitHub2.95%iTerm22.78%VS Code2%Warp1.71%Orca1.48%WebStorm1.46%Zed1.32%Air0.37%Excel0.16%‎WhatsApp0.14%ChatGPT0.11%Notion0.11%Notes0.09%Figma0.06%Postman0.01%

Operating systems

Mac100%