Hello, I'm

Christopher Lu

A Full Stack Software Engineer

I build scalable web applications, cloud-native developer tools, and modern user experiences with React, Next.js, TypeScript, Node.js, and Kubernetes. I enjoy solving complex engineering problems through thoughtful architecture, clean code, and intuitive user experiences.

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Featured Work

Selected Projects

A collection of projects highlighting full-stack engineering, cloud-native infrastructure, scalable application architecture, and modern user experiences.

Case Study

Did I Do That (DIDT)

Small habits. Daily wins. Lasting growth.

In Progress

Delivered a validated mobile alpha backed by server-authoritative tracking, calendar-aware eligibility, history, and recovery workflows. The same API now supports ongoing web alpha development without duplicating core domain rules across clients.

DIDT is a cross-platform habit tracking application built around quick daily tracking, recoverable habit management, and trustworthy progress. Its React Native mobile client has reached the alpha milestone, supported by a shared NestJS API and PostgreSQL database. The Next.js web client is being developed against the same backend contracts.

Validated React Native / Expo mobile alpha with shared NestJS backend
Backend-authoritative Today eligibility, Boolean and quantitative tracking
Calendar history, completion analytics, and 30-day lifecycle recovery
Next.js web application progressing toward the mobile alpha feature set

Technologies

Next.jsReactTypeScriptTailwind CSSNestJSPostgreSQLPrismaReact NativeExpoDockerJWTREST APIs

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DIDT source repositories remain private during alpha development.

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