Zen — Full-Stack Developer

About

Zulfikar Ulya Zen

Portrait of Zulfikar Ulya Zen

Bantul, Yogyakarta, Indonesia

Hey! I'm Zulfikar Ulya Zen — born on 2 May 1999 in Bantul, Yogyakarta, and often known as Zen among peers.

Technology has always been my passion — I love building, solving problems, and constantly evolving my skills. I'm an intermediate-level software engineer, with expertise gained through a combination of professional employment and freelance projects. I pride myself on delivering reliable and innovative solutions.

I'm open to freelance opportunities — if you see me as a good fit for your project, I'd love to hear about it.

01

Core Skills

(7)
  • Full-Stack Web Development
  • AI & LLM Engineering
  • SDLC — Agile & Scrum
  • Problem-Solving & Critical Thinking
  • Clean Code Principles
  • Technical Documentation
  • Optimization
02

Technical Skills

(7)
  • Programming Language
    • JavaScript
    • TypeScript
    • PHP
    • Python
    • Golang
  • Frontend
    • React.js
    • Next.js
    • Vue.js
    • Nuxt.js
    • Electron.js
    • Tailwind
  • Backend
    • Node.js
    • Express.js
    • Nest.js
    • Laravel
    • Golang
  • Database
    • SQL
    • NoSQL
    • Redis
  • API & Messaging
    • REST API
    • GraphQL
    • WebSocket
    • PubSub
    • gRPC
  • Tools & DevOps
    • CI/CD
    • Docker
    • GitLab / GitHub
    • Locust
  • AI & LLM
    • Prompt Engineering
    • Claude Code
    • Codex
    • OpenCode
    • Hermes Agent
    • Agent Harness
    • Local LLM Setup
    • MCP
03

Social Links

(4)
04

Experience

(6)
  • 01

    10/2024 — Present

    Current

    Intermediate Fullstack Engineer

    Privy.ID
    • Nuxt 3
    • Tailwind
    • TypeScript
    • Golang
    • gRPC
    • PubSub

    Collaborating across multiple teams to develop and enhance web applications — implementing responsive, accessible UI from UI/UX designs and integrating backend APIs for seamless data flow.

    • Setup Dashboard for Privy's clients
    • Privy's Core Service
    • Load testing & optimization of services
  • 02

    12/2022 — 10/2024

    Frontend Engineer

    Privy.ID
    • Nuxt 3
    • Tailwind
    • TypeScript

    Joined multiple teams to develop various web applications — implementing designs given by UI/UX designers and integrating APIs from backend engineers.

    • Landing Page Privy.ID
    • Monitoring Dashboard for Privy's clients
    • Setup Dashboard for Privy's clients
    • Liveness Detection Web App
    • Dynamic Form
    • Profile Configuration
  • 03

    03/2024 — 12/2024

    Mentor

    Eduwork
    • Vue 3
    • Laravel

    Teaching a fullstack web development bootcamp class, guiding students from fundamentals through production-ready projects.

    • Fullstack Web Development class — Vue 3 and Laravel
  • 04

    06/2022 — 12/2024

    Fullstack Engineer

    Widya Robotics
    • Vue.js 3
    • Bootstrap CSS
    • Nest.js
    • PostgreSQL

    Developed various complete web applications from the front-end side to the back-end side.

    • Fullstack Gas Detector
    • Backend MyNitro
  • 05

    10/2021 — 05/2022

    Front-End Engineer

    Widya Robotics
    • Nuxt.js 2
    • Electron.js
    • Vuetify
    • Vue.js 2

    Joined several teams to develop various web applications — implementing designs given by UI/UX designers and integrating APIs from backend engineers.

    • UAV LiDAR 3D Processor
    • Smartwarehouse App
  • 06

    01/2020 — Current

    Current

    Freelance Web Developer

    Self-Employed

    Delivering web applications based on client needs — from marketing landing pages to full-stack platforms and CMS-driven sites.

05

Education

(1)
  • Sep 2022

    Bachelor of Computer Science

    Ahmad Dahlan University

    GPA 3.52.

06

Publications

(1)
  • 2022

    Implementation of Artificial Intelligence in NPC Game Behavior Using Reinforcement Learning Method

    Undergraduate thesis exploring reinforcement learning to drive adaptive NPC behavior in games.