Calvin C. Chan

Calvin C. Chan

AI-Fluent Full-Stack Developer

Senior developer for SaaS teams that need polished, production-grade delivery.

  • SaaS MVP builds — from architecture to launch
  • Business process automation — agentic workflows that cut manual ops
  • Full-lifecycle development — architecture, implementation, and deployment
  • Team embed — senior contractor who hits the ground running

Selected Work

Shipped projects — from open-source tooling to production SaaS. Each one owned end-to-end.

Volunteer Time Tracking

An open-source time tracking app built for Familogue NGO — replacing WhatsApp messages and manual spreadsheets with a proper audit trail for grant reporting.

TypeScriptReactSupabaseRefine.jsshadcn/ui
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InvoiceLite

A lightweight CLI invoice tool for freelancers. Zero config, file-based, fully scriptable — designed to be driven by AI agents or used directly from the terminal.

TypeScript
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DisplayToggle

A minimal Swift CLI to turn the MacBook built-in display on or off without closing the lid.

SwiftmacOS
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Line Me Up

The Line Me Up project is an open-source waitlist management software designed for restaurants and retail stores. It aims to simplify the process of handling customer queues by offering a self-service approach for both customers and staff.

TypeScriptReactNext.jsRefine.jsSupabase
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Latest Writing

Hands-on posts on AI tooling, TypeScript, and full-stack development — written by a practitioner.

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