Hi, I’m
Riki Zulkarnain.

$ full-stack engineer · ai & automation_

With 9+ years of experience in software development and IT, I specialize in building scalable applications, internal systems, and automation solutions. I focus on full-stack development and AI-powered automation, using Golang, React, Next.js, Node.js, PostgreSQL, Docker, and n8n.

FocusFull-stack & Automation

Experience9+ Years

View projects ↓See CV ↗

OPEN TO WORK

// projects

Featured work.

View all projects →

Systems, websites, and automations I’ve built.

Pelatihku — Training Platform

Website

An online training and course platform where users browse programs, enroll, and track their learning progress.

View project →

Kemas — Knowledge Platform

Website

A knowledge-management and e-learning platform for organizing, sharing, and finding internal knowledge and materials.

View project →

Sinar Mart — Retail Intelligence Report

Automation

Laporan retail harian (penjualan, stok, order lintas 3 channel) digabung otomatis oleh n8n, dirangkum AI, dan dikirim ke Telegram tiap pagi — tanpa copy-paste manual.

GSTBAFiGGPiCR

View project →

Hermes — AI Content Automation Agent

Automation

Agen otomasi berbasis n8n & AI yang membuat konten sosial media (caption + gambar carousel) siap posting untuk beberapa topik/channel, dipicu langsung lewat perintah di Telegram.

HeTBALAAIG

View project →

MyTimor — Online Transportation

Mobile

Online transportation and integrated public-service platform serving Timor-Leste, delivered for a client with Sintech Solution.

FlPHP

View project →

Antrian — Queue Management

Website

A queue-management system that issues and calls service numbers and displays the current queue on a monitor in real time.

View project →

// stack

Technologies I work with.

A pragmatic toolkit drawn from real projects — systems, websites, and automation pipelines. I lean on the right abstraction for the problem at hand.

Frontend

JavaScript

TypeScript

React

Next.js

Tailwind CSS

HTML5

Sass

JavaScript

TypeScript

React

Next.js

Tailwind CSS

HTML5

Sass

Backend & Data

Golang

Node.js

PostgreSQL

MySQL

Prisma

Supabase

Firebase

Redis

Golang

Node.js

PostgreSQL

MySQL

Prisma

Supabase

Firebase

Redis

Automation & DevOps

n8n

Docker

GitHub Actions

Vercel

Git

Figma

Postman

n8n

Docker

GitHub Actions

Vercel

Git

Figma

Postman

AI & LLM

RAG

Embeddings

pgvector

AI Agents

LLM APIs

Prompt Engineering

RAG

Embeddings

pgvector

AI Agents

LLM APIs

Prompt Engineering

// experience

Work experience.

My professional journey and the teams I’ve had the privilege to work with.

Sintech Solution

Palembang, Indonesia

Founder & Full Stack Developer

Jan 2018 — Present

Freelance · On-site/Remote

Delivered end-to-end web and mobile applications for government agencies, BUMN/BUMD, and private companies, from requirements gathering through production deployment and maintenance.

ReactNext.jsGolangNode.jsPHPJavaScriptFlutterPostgreSQLDockerAI Agents

Kementerian Pekerjaan Umum

Palembang, Indonesia

IT & Public Service Innovation

Aug 2023 — Feb 2026

Full-time · On-site

Developed and implemented GOMUSI 2.0, an integrated public-service information system to digitize service processes and improve accessibility and operational efficiency. Also handled public communication and documentation of road and bridge construction projects to support transparency and public information.

FlutterNode.jsPublic Service SystemsDocumentation

Badan Pendapatan Daerah

Palembang, Indonesia

Information Systems & Network Specialist

Jul 2018 — Jul 2023

Contract · On-site

Developed tax monitoring dashboards using PHP and CodeIgniter to provide centralized visibility into regional tax data and support operational monitoring. Also managed and maintained regional revenue information systems, and diagnosed and resolved system errors and technical issues.

PHPCodeIgniterMySQLSystem Maintenance

Telkomcel

Timor-Leste

Backend Developer

Jun 2019 — Dec 2019

Contract · Remote

Backend Developer using Node.js on MYTimor — a super-app (similar to Gojek and Grab) for Timor-Leste. Designed and managed databases and built the server-side APIs and business logic.

Node.jsDatabase DesignREST API

Telkomsel

Palembang, Indonesia

Full Stack Engineer

Jan 2017 — Dec 2017

Contract · On-site

Developed Fanelia, an Android application for tower visit management and monitoring, supporting field activities and improving visibility of tower operations. Also maintained and enhanced existing applications to keep systems reliable and performant.

AndroidPHPDartMySQLJavaScriptFlutter

// certifications