Full-Stack • Web3 • Infrastructure

ozihatake

Full-stack developer focused on SaaS and web3. I build the whole thing — the frontend, the API, the database, and the server it runs on. Most of what I make ends up in production with real users, like the inventory system I run for a retail client. I work day-to-day with TypeScript, Next.js, FastAPI, and Solana.

Current Focus
  • Full-Stack Development
  • Solana & Web3 Applications
  • Consumer Product Shipping
  • Infrastructure & DevOps

About

I like building things end to end. On a typical project I'll design the UI, write the API, set up the database, and deploy it myself on a Linux VPS — then keep it running. My main stack is TypeScript, Next.js, and FastAPI, and I've done a fair amount of Solana work too (web3.js, Anchor, SPL tokens). I care more about software that actually gets used than about resume-friendly buzzwords.

Core Expertise

TypeScript & Next.js
Node.js & FastAPI
Solana (web3.js, Anchor, SPL Tokens)
React & Alpine.js
Flutter Mobile Apps
PostgreSQL & SQLite
Docker & Containerization
REST & WebSocket APIs
PWA Deployment
Linux Servers & VPS
Web3 Infrastructure
Validator Nodes & RPC
Bash & Python Automation
CI/CD & DevOps
Smart Contract Integration
GPU Mining Environment

5+

Apps Shipped

35+

API Endpoints

Multi-Chain

Infrastructure

24/7

Production Ops

Selected Projects

App-penjualan — SaaS Inventory Management ↗

An inventory and point-of-sale system I built and run for a retail client. FastAPI backend with 35+ endpoints and a 34-table schema, role-based access for owners, supervisors, and cashiers, and an Alpine.js frontend. Runs on my own VPS behind Nginx and a Cloudflare tunnel.

#FastAPI#SQLite#Alpine.js#Production

Voice Changer — Flutter Mobile App ↗

A voice changer app built with Flutter, using the ElevenLabs API for the voice effects. Works as a Windows build, with GitHub Actions handling the automated builds. Started it because I wanted something I could actually use on Discord calls.

#Flutter#ElevenLabs#Mobile#CI/CD

Universal Translator — PWA ↗

A progressive web app for translation — voice input, camera OCR, maps, and support for 80+ languages. Flask backend with Tesseract for the OCR and the Google Vision API for the harder cases.

#PWA#Flask#OCR#Translation

Validator Infrastructure

Running validator and RPC nodes across a few chains — setting them up, monitoring uptime, and automating the routine maintenance so they don't need babysitting.

#Validator#RPC#Linux VPS

Miko Wear — E-Commerce Platform ↗

A fashion e-commerce storefront built with Next.js 14 and Tailwind — product catalog, cart, and a responsive layout that works properly on mobile.

#Next.js#Tailwind#E-Commerce

Philosophy

“I'd rather ship something small that people actually use than something big that just sits in a repo.”