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

3,933 · past year

JunJulAugSepOctNovDecJanFebMarAprMayJun

Less More

Commits 86.6%Reviews 9.3%Pull requests 3.8%Issues 0.3%

AI coding

on WakaTime

98%AI-driven

AI 3,918

98%

Human 94

</> 4,012 line changes · 69 ai sessions

Tokens

315M313.9M in · 1.2M out

Agent cost

$913actual · 7d

Prompts

915.1K chars avg

AI coding

41%of coding time

Agents

Claude

3,918 lines · $913

Coding activity

34h 23m · last 7 days

Languages

TypeScript30.53%Java15.51%Markdown9.25%Astro9.25%CSS8.06%JavaScript8.04%YAML5.6%Vue5.49%SQL2.62%XML1.51%JSON1.47%Text1.23%D0.5%Batchfile0.33%Kotlin0.24%Bash0.21%Git Config0.17%

Editors & Tools

Claude Code40.52%cmux23.46%ClickUp5.67%Warp5.4%IntelliJ IDEA5.37%SparkDesktop3.85%DataGrip3.31%Unknown Editor2.65%Slack1.87%MicrosoftExcel1.65%GitHub1.61%iTerm21.25%VS Code0.78%AntigravityIDE0.69%MicrosoftWord0.55%Notion0.48%Perplexity0.22%ChatGPT0.21%Notes0.19%Fork0.17%Antigravityide0.06%WebStorm0.04%

Operating systems

Mac100%