Skip to main content
Letnull19A Portfolio

I BUILD WEB PRODUCTS WHERE TECHNICAL STATE STAYS VISIBLE TO BOTH OPERATORS AND DECISION-MAKERS.

DOWNLOAD CVLET'S WORK TOGETHER

SELECTED WORK.

SPEKA
FULLSTACK

A client-facing specification editor designed around progress transparency and predictable delivery signal

VIEW CASETRY OUT
BIMAR SYSTEM
FRONTEND // BACKEND

Construction workflows, product data, and 3D configuration logic in one browser platform

VIEW CASE
VOYAGE ANALYTICS
FRONTEND

Real-time travel analytics dashboard with interactive maps and cohort-based reporting

VIEW CASELIVE DEMO
KNOWLEDGE GRAPH
FULLSTACK

Graph-based knowledge base that turns documents and notes into a queryable entity network

VIEW CASE
VIEW ALL CASES

ABOUT & STACK.

I am a full-stack engineer focused on products where interface clarity and system behavior have to support each other.

FRONTEND

01

TYPESCRIPT JAVASCRIPT RSPACK WEBPACK NODEJS REACTJS REDUX TOOLKIT ZUSTAND SHADCN PRIME REACT BOOTSTRAP SCSS SASS TAILWIND NEXTJS VITE

BACKEND

02

VITEST NESTJS POSTGRES MONGODB SUPABASE DRIZZLE ORM TYPEORM PRISMA DOCKER DOCKER COMPOSE TYPESCRIPT JAVASCRIPT RSPACK WEBPACK NODEJS

OTHER

03

CLAUDE CHATGPT GOOGLE META LANGCHAIN LANGGRAPH OPENROUTER RAG / CAG FIGMA PHOTOSHOP PENCIL

WORK PROCESS.

I work in visible slices: clear framing, explicit risk, and delivery signals that stay legible to clients.

FRAME THE PROBLEM isometric schema

01FRAME THE PROBLEM

STATUSACTIVEPROGRESS21%
:::VARIANT [ 001 ]
YOUR PROJECT / WORKFLOW / 001

ASK ABOUT MY WORK.

Ask about product fit, engineering decisions, or the stack behind a specific case — personal AI got you covered.

ARTICLES.

UI DESIGN SYSTEM & MARKDOWN SYNTAX DEMO

Complete showcase of all typography, lists, code blocks, tables, and blockquotes supported by the markdown parser.

linkedintelegramRead here
MONOREPO INFRASTRUCTURE WITH PNPM WORKSPACES

MONOREPO INFRASTRUCTURE WITH PNPM WORKSPACES

How to split Next.js frontend and Node.js backend into a pnpm monorepo with isolated Dockerfiles.

linkedintelegramRead here

CONTRACT-FIRST API WITH T RPC AND SHARED ZOD SCHEMAS

Why the API contract lives in code: shared zod schemas, envelope-less tRPC responses, and fail-fast data validation.

linkedintelegramRead here
STATIC EXPORT DEPLOYMENT WITH DOCKER AND DOKPLOY

STATIC EXPORT DEPLOYMENT WITH DOCKER AND DOKPLOY

Shipping a Next.js static export as a static-web-server Docker image with build-args baked into the bundle.

linkedintelegramRead here
READ ALL ARTICLES

LET'S WORK TOGETHER

A new product, an unfinished system or something that needs fixing? Tell me about your project!

YOU CAN ALSO WRITE AN EMAIL ON LETNULL19A@GMAIL.COM