Alex.Chan

Trusted by 13+ entrepreneurs and start-ups

I help Architecting Systems Where Performance Meets Execution.

I build scalable Next.js applications and backend systems that move business metrics, not just pass code review. From schema design to Core Web Vitals, I own the full stack.

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Technical Architecture

Full-stack, top to bottom.

Grouped by responsibility, not just a list of buzzwords.

  • Logic Layer

    Backend

    • Node.js
    • TypeScript
    • REST / GraphQL
    • Docker / CI/CD
    • Auth / JWT / OAuth

  • Interface Layer

    Frontend

    • Next.js
    • React / Hooks
    • Tailwind CSS
    • Framer Motion
    • Shadcn UI

  • Persistence Layer

    Data

    • MongoDB
    • PostgreSQL
    • Supabase / RLS
    • Redis / Caching
    • Stripe Payments

By the numbers

  • 95+

    Lighthouse Score

  • 14+

    Projects Completed

  • 98%

    Client Satisfaction

  • 0.8s

    Largest Contentful Paint

  • 0ms

    Cumulative Layout Shift

Featured Case Studies

Problems solved. Results measured.

Every project has a before and after. Here's the proof.

  • Web3 · Crypto SaaS

    Cryptera — Cryptocurrency Trading Platform

    Problem

    Crypto newcomers and seasoned traders needed a single platform combining portfolio management, real-time market data, and secure transactions — without the complexity of existing tools.

    Technical Execution

    • Built a Next.js frontend with SSR for SEO-critical pages and CSR for real-time price feeds.

    • Multi-layer security architecture with encryption at rest and in transit.

    • User onboarding with identity verification flow, tiered subscription pricing (Basic / Business), and a mobile-responsive interface targeting both beginner and expert users.

    Stack

    • Next.js
    • TypeScript
    • Tailwind CSS
    • Node.js
    • Stripe
    • Vercel
    Cryptera cryptocurrency trading platform interface
  • B2B SaaS · Project Management

    ProductFlow — Team Productivity & Project Management

    Problem

    Growing product teams were stitching together three separate tools for task management, sprint planning, and reporting. Context-switching was killing productivity and causing data silos between engineering and product.

    Technical Execution

    • Designed and built the marketing landing page and onboarding flow for a project management SaaS.

    • Conversion-first architecture — clear value hierarchy, feature breakdowns, social proof, and a direct CTA funnel.

    • Optimized for team leads and decision-makers evaluating the tool.

    Stack

    • React
    • TypeScript
    • Tailwind CSS
    • Node.js
    • Framer Motion
    • Vercel
    ProductFlow project management marketing site
  • FinTech · Analytics Dashboard

    FinTechPro — Financial Management Dashboard

    Problem

    Startup finance teams were managing MRR, churn, transactions, and KPIs across spreadsheets and disconnected tools. No single source of truth, no real-time visibility, and no drill-down from high-level metrics to raw transactions.

    Technical Execution

    • Built a full-featured CFO-grade dashboard with collapsible sidebar navigation across 10+ modules.

    • Cash Flow, Revenue, Expenses, KPI Dashboard, Performance Metrics, Transactions, and Customers.

    • Real-time data rendering with chart components for actual vs. expected revenue.

    Stack

    • Next.js
    • TypeScript
    • Tailwind CSS
    • Node.js
    • Stripe
    • Recharts
    FinTechPro financial management dashboard
Professional History

Where I've shipped.

Impact-driven roles focused on systems and results, not just responsibilities.

  1. Senior Full-Stack Engineer

    Stealth SaaS Startup

    2023 — Present

    Remote

    • Led frontend architecture on a B2B dashboard serving 15k+ daily users.

    • Reduced bundle size by 38% via RSC migration and code splitting.

    • Established CI/CD pipeline that cut deployment cycle from 4 hours to 22 minutes.

    • React
    • TypeScript
    • Tailwind CSS
    • Node.js
    • Framer Motion
    • Vercel

  2. Full-Stack Developer

    Freelance / Agency Contracts

    2021 — 2023

    Remote

    • Delivered 12+ production systems for SaaS founders and agencies.

    • Specialized in Next.js, Supabase, and Stripe integrations.

    • With complete auth, access control, and payment flows from schema to deployment.

    • React
    • TypeScript
    • Node.js
    • Vercel

  3. Junior Frontend Engineer

    Digital Agency

    2019 — 2021

    Remote

    • Built responsive marketing sites and landing pages for 20+ clients.

    • First deep exposure to performance optimization, accessibility standards.

    • Handling client-facing technical communication.

    • React
    • TypeScript
    • Tailwind CSS
    • Node.js
    • Framer Motion
    • Vercel
Testimonials

What clients say.

The metric that matters most is the one after launch.

“Alex restructured our entire backend in 3 weeks. Lighthouse went from 54 to 97. More importantly, signups increased 22% the week after launch — that's the number I care about.”

Jordan L.Founder, SaaS Platform

“Delivered in 14 days exactly as promised. The schema design alone saved us from a complete rewrite 6 months later. Very few engineers think at both the business and systems level.”

Sara K.CTO, Fintech Startup

“The site finally feels like a real business. Leads started coming in before the campaign even ran. The structure does the selling — you don't have to push people, they just convert.”

Mark P.Owner, Local Services Co.
Let's Work Together

Free 15-min Technical Audit.

Got a performance problem, an architecture question, or a project you need scoped properly? Let's look at it together — no pitch, just engineering.

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