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lucajz.

Software Developer

lucajz

I design and build fast, reliable products end to end — from polished front-ends to resilient back-ends and on-chain systems for Web3 & DeFi.

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About

Engineer across the full stack, from database to pixel.

I'm lucajz, a full-stack developer who ships production software for the web — turning complex ideas into clean, performant systems that people actually use.

My work spans modern web apps, APIs and infrastructure — plus the occasional smart-contract integration or automation bot when a product calls for it. I care about speed, reliability and details that make a product feel considered.

Comfortable owning a feature from database to pixel, I move fast without cutting corners — and I'm equally happy designing an architecture or polishing an interaction.

5+
Years building
Full-stack
web · mobile · APIs
Services

What I can build for you.

01

Full-Stack Web Apps

Polished products shipped end to end — fast, accessible and production-ready.

  • Next.js / React
  • NestJS / Laravel APIs
  • Database to deploy
02

Frontend & UI Engineering

Interfaces that feel considered — performant, accessible and detail-obsessed.

  • Design systems
  • Accessibility
  • Core Web Vitals
03

Backend & Architecture

Reliable APIs and data layers built to scale without cutting corners.

  • REST / GraphQL
  • PostgreSQL · Redis
  • Caching & scale
04

Web3 & Automation

Smart-contract integrations and trading/utility bots — when a product calls for it.

  • Contract integrations
  • Telegram bots
  • On-chain data
Selected Work

Projects I've designed, built and shipped.

  • 01Nibiru↗

    Lead front-end on a multi-venue events and ticketing platform — event browsing, ticket selection, QR checkout and venue maps, with a caching strategy (unstable_cache, RSC) that trims API calls.

    Next.jsTailwind CSSGraphQLRSCMapbox
  • 02Shopilot↗

    An AI assistant that runs a Shopify store from a chat thread — intent routing, Shopify OAuth and webhooks, supplier auto-fulfillment, and confirmation-gated destructive actions.

    NestJSPostgreSQLShopify APIFull-stackTelegram API
  • 03First.ro↗

    Full MVP built and shipped end to end — full design, filtering system, map system, listing system, and payment system.

    Next.jsTailwind CSSLaravelPostgreSQLRedis
  • 04Mon Beauty↗

    A beauty-salon platform built solo front to back — appointment booking and therapist scheduling, Netopia card payments, a staff mobile app and an admin dashboard over a NestJS API.

    Next.jsTailwind CSSExpoNestJSReact NativePostgreSQLFull-stack

  • Full-stack spa booking platform across iOS, Android and web — real-time availability, appointment booking, multi-provider auth with OTP, gift vouchers, and a Laravel payment pipeline with IPN callbacks.

    React NativeExpoFCM / FirebaseNext.jsLaravelFull-stack

  • A decentralized exchange — token swaps, liquidity and on-chain data with a fast, trustworthy UI.

    Web3DeFiNext.jsShadcn / Tailwind CSSRedis

  • Trading and utility bots for Web3 — wallet integrations, real-time alerts and automation at scale.

    NodeMongoDBWeb3
Tech Stack

Tools I reach for.

Languages

  • TypeScript
  • JavaScript
  • PHP
  • Solidity

Front-end

  • Next.js
  • React Native
  • Expo
  • Shadcn
  • Tailwind CSS
  • Three.js / R3F
  • Framer Motion
  • GSAP
  • Lenis
  • Zustand
  • TanStack Query

Back-end

  • NestJS
  • Laravel
  • Node.js
  • Express
  • REST / GraphQL
  • WebSockets
  • Telegram Bot API

Web3 / DeFi

  • ethers.js
  • viem
  • wagmi
  • web3.js
  • Hardhat
  • Foundry
  • Wallet integrations
  • On-chain data

Data

  • PostgreSQL
  • Supabase
  • MongoDB
  • Redis
  • Prisma
  • Drizzle
  • MySQL
  • SQLite

Tooling

  • Claude Code
  • Claude Design
  • Cursor
  • JetBrains
  • Git
  • Docker
  • Vercel
  • AWS
  • CI/CD
  • Figma
  • Postman
Contact

Let's build something good.

hello@lucajz.dev
Résumé ↗GitHub ↗LinkedIn ↗