Justin
Dotzlaw
I'm curious by nature and enjoy learning across different areas, especially where psychology and technology overlap. Outside of work, I like learning languages, traveling, hiking, and exploring new cultures. If you'd like to collaborate (or even be friends!), feel free to connect! I'm always happy to meet new people.
Justin
Dotzlaw
Web developer and AI Master's student with a background in psychology. I’ve co-founded and worked in early-stage startups across growth, product, and engineering, shipping projects end to end. Currently building web applications and working with businesses to create software that solves real problems.
Recent Projects
Spring 2026ZhongLens. Learning Chinese is hard. ZhongLens is a Chrome Extension that lets you look up words directly from images using OCR, turning anything on your screen into interactive, readable text so you can learn new words instantly without typing or switching tabs.
Geo
Hong Kong
Status
Beta Testing
Languages
JavaScript, Python
Frameworks
React, WXT (extension), Next.js (website), Supabase (auth), Stripe (billing), FastAPI (OCR backend)
Outcomes
- Built a Chrome extension that turns image-based Chinese text into selectable, readable text
- Integrated OCR with a FastAPI backend for screenshot-based lookup
- Designed the product flow for fast Chinese learning without typing or switching tabs
January 2026De Nieuwe Mensa - Website. Designed and developed a website for De Nieuwe Mensa, an F&B startup I co-founded. The site represents the project to key stakeholders, as well as new students, with a focus on modern design and subtle animations to give the project a polished and professional presence.
Geo
Hong Kong
Status
Live - X Monthly Visitors
Languages
JavaScript JSX
Frameworks
Next.js, Payload CMS, Framer Motion
Outcomes
- Designed and developed the full public-facing website
- Implemented a food rating system to enable students to participate in the decision-making about the food we sell
- Used Payload CMS to make content easier to manage
- Added subtle motion and polished visual design to improve credibility with stakeholders
December 2025Justin's Blog. Developed a personal blog platform with a full CRUD system for
managing articles, along with user authentication and a comment system to enable interaction.
Focused on clean design and smooth animations using Framer Motion to create a polished reading experience.
Geo
Hong Kong
Status
Live
Languages
JavaScript JSX, SQL
Frameworks
Vite + React Router, PostgreSQL, Prisma ORM, Framer Motion
Outcomes
- Built a full-stack blog platform with article CRUD, user authentication, and a comment system
- Designed and implemented a structured content system for creating, editing, and managing posts directly on the site
- Created an interactive user experience with signup and commenting to move beyond a static blog
- Focused on visual polish and micro-interactions using Framer Motion to improve perceived quality and usability
April - December 2025Growth @ Notigo.ai. Notigo is a real-time AI meeting assistant focused on simplicity and user control.
My role focused on growth, positioning, product communication, and UI/UX design.
I led the shift from a business-oriented tool to a student-focused product by identifying the core user
segment, running user interviews, and translating those insights into changes across marketing, positioning, and the product itself.
Geo
Amsterdam → Hong Kong (Remote)
Status
Completed
Focus
Growth, Product Marketing, SEO, Lifecycle Email, User Research
Tools
Google Ads, Meta Ads, PostHog, Figma
Outcomes
- Rewrote and redesigned the landing page to improve clarity and conversion, increasing signup CTR from ~40% to ~60% (paid traffic).
- Led paid acquisition (Google Ads, Meta) and SEO, cutting cost per signup by ~2.5x and growing organic traffic from 0 to a compounding source of ~10 weekly signups
- Set up product analytics (PostHog), turning a previously untracked product into a measurable system. This enabled the team to identify drop-offs, evaluate experiments, and prioritize growth efforts based on real usage data.
- Identified students as the primary user segment and repositioned Notigo from a business-focused tool to a student-oriented product, aligning messaging, and acquisition & pricing strategy to increase conversion.
