ZR
Available for work

Hi, I'm Zulfikar
Ramadhan

7+ years crafting enterprise & government-scale web and mobile applications. Specializing in Laravel, Node.js, React, and modern DevOps practices.

About Me

Who I Am

I'm a Full-Stack Developer based in South Jakarta, Indonesia, with over 7 years of experience building enterprise and government-scale applications that are used by hundreds of thousands of users.

My journey started at Koperasi Samudera Indonesia Group in 2017, and since then I've worked across private companies, national ministries, and regional government agencies — including Kementerian PUPR and Bapenda DKI Jakarta.

Beyond coding, I'm passionate about DevOps automation, CI/CD pipelines, and building robust infrastructure. I believe great software is not just about the code — it's about how it's deployed, monitored, and maintained in production.

📍 South Jakarta, ID🌐 Open to Remote⚡ Available Now
7+
Years Experience
20+
Projects Delivered
4
Gov't Systems Built
10+
Tech Stack
Technical Skills

My Tech Stack

Backend
PHPExpert
LaravelExpert
CodeIgniterProficient
Node.jsProficient
Express.jsProficient
GoFamiliar
.NETFamiliar
SymfonyFamiliar
Frontend & Mobile
React.jsExpert
Next.jsProficient
Vue.jsProficient
Inertia.jsFamiliar
FlutterFamiliar
React NativeProficient
Java AndroidFamiliar
jQueryFamiliar
Database
PostgreSQLExpert
MySQLExpert
OracleFamiliar
Firebase FirestoreProficient
Firebase Realtime DBProficient
DevOps & Tools
DockerExpert
GitLab CIProficient
GitHub ActionsProficient
NginxProficient
Uptime KumaFamiliar
GitleaksFamiliar
SemgrepFamiliar
TrivyFamiliar
Fail2banFamiliar
UFWFamiliar
API & Security
RESTful APIExpert
GraphQLProficient
JWTExpert
OAuth2Proficient
RBACProficient
Testing & Quality
PHPUnitExpert
JestExpert
TDDProficient
Load TestingFamiliar
Regression TestingFamiliar
Career Journey

Work Experience

BP

Programmer

Badan Pendapatan Daerah Provinsi DKI Jakarta

Feb 2024 – Present
  • ▪Built end-to-end tax administration systems (PajakOnline & CoreTax) using Laravel + Oracle
  • ▪Integrated NIK validation, payment gateways, and third-party APIs for automated tax processing
  • ▪Resolved race condition bug in concurrent service-number generation using Oracle window functions
  • ▪Set up full DevOps stack: Docker, GitLab CI/CD, Nginx, Uptime Kuma, and DevSecOps scanning
LaravelOracleDockerGitLab CIDevSecOps
KP

Software Developer

Kementerian PUPR

Jun 2019 – Feb 2024
  • ▪Developed & maintained 5 procurement systems: SIPBJ, Sikompak, Sipemenang, Monev, Indigo
  • ▪Built RESTful APIs with CodeIgniter 4 serving hundreds of concurrent government users
  • ▪Configured Windows Server, IAP Remote, and multi-PHP reverse proxy infrastructure
  • ▪Implemented automated deployment pipelines reducing manual release effort
CodeIgniter 4PostgreSQLMySQLWindows ServerRESTful API
PL

Freelance Developer

Pertamina Lubricants & Pertamina Hulu Energi

2019 – 2024
  • ▪Developed pertaminalubricants.com & drlube.pertaminalubricants.com with high-traffic CMS
  • ▪Built TMOC (Technical Management of Change) system for PHE OSES using Symfony
  • ▪Implemented complex multi-level approval workflows with full audit trail for safety compliance
SymfonyLaravelVue.jsNext.jsCMS
PB

Web Developer

PT Bintang Sempurna

Feb 2018 – Jun 2019
  • ▪Built full-stack bintangsempurna.co.id — front desk (Next.js) and CMS (Vue.js + Laravel)
  • ▪Integrated Midtrans payment gateway for Online Print application
  • ▪Developed native Android app (Java) for book dimension calculation
Next.jsVue.jsLaravelJava AndroidMidtrans
KS

Application Support

Koperasi Samudera Indonesia Group

Feb 2017 – Feb 2018
  • ▪Developed cooperative information system (savings & loans) using CodeIgniter 3 + MySQL
  • ▪Implemented role-based access control (admin, cashier, member) for data security
  • ▪Built automated financial reports with Excel/PDF export and SQL query optimization
CodeIgniter 3MySQLjQueryBootstrapRBAC
Portfolio

Featured Projects

pajakonline-coretax.app
Government

PajakOnline & CoreTax

End-to-end tax administration system for Bapenda DKI Jakarta — taxpayer portal and internal analytics dashboard with Oracle DB, payment gateway integration, and CI/CD pipeline.

LaravelOracleDockerGitLab CI
sipbj-procurement-suite.app
Government

SIPBJ & Procurement Suite

5 interconnected procurement systems for Kementerian PUPR serving nationwide users: SIPBJ, Sikompak, Sipemenang, Monev, and Indigo with RESTful API architecture.

CodeIgniter 4PostgreSQLRESTful API
phe-oses-tmoc.app
Enterprise

PHE OSES — TMOC

Technical Management of Change system for Pertamina Hulu Energi. Handles multi-level approval workflows, audit trails, and compliance documentation for oil & gas operations.

SymfonyMySQLWorkflow Engine
pertamina-lubricants-website.app
Corporate

Pertamina Lubricants Website

High-traffic corporate website and DrLube platform for Pertamina Lubricants, featuring a flexible CMS that empowers the marketing team to manage content independently.

LaravelVue.jsMySQL
bintang-sempurna-website.app
Full-Stack

Bintang Sempurna Website

Full-stack company website with separate front desk (Next.js/SSR) and CMS (Vue.js) — integrated with Midtrans payment gateway for Online Print feature.

Next.jsVue.jsLaravelMidtrans
adu-smart.app
Mobile

Adu Smart

Flutter educational quiz game for Indonesian elementary students with real-time versus mode (Laravel Reverb/WebSocket), Firebase FCM push notifications, and AdMob monetization.

FlutterLaravel 13WebSocketFirebase
Blog

Latest Articles

I write about real problems I've solved — backend architecture, DevOps, and mobile development.

Contact

Let's Work Together

Available for freelance projects, full-time remote roles, and collaborations. Let's build something great.

Location

South Jakarta, Indonesia

Social Links

Say Hi on WhatsApp

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