AVAILABLE FOR PROJECTS & CONSULTATIONS

Engineering resilient backend architectures & scalable integrations.

Software Developer with 5+ years of experience engineering resilient backend architectures, high-performance RESTful APIs with PHP & Laravel, Python, Node.js, relational database optimization (PostgreSQL & MySQL), and scalable enterprise & public service system integrations.

CORE TECH STACK:
PHP / LaravelPostgreSQLRESTful APIPythonNode.jsSSO & OAuth2MySQL
system_profile // v2.4
ROLE:

Senior Software Developer / Backend Architect

EXPERIENCE:

5+ Years

PRODUCTION:

12+ Systems

SPECIALIZATION:
  • ▹High-Performance RESTful API Gateways
  • ▹Relational Database Tuning (PostgreSQL & MySQL)
  • ▹Cross-Agency Data & SSO Interoperability
  • ▹Hardware-Bound Licensing & Anti-Tamper Security
LOCATION:Jakarta, ID [UTC+7]
01ABOUT ME

Engineering Focus & Dedication

Building reliable digital solutions centered on public licensing reliability, secure data architecture, and cross-system interoperability.

I am a Software Developer with deep focus on backend architecture, the PHP ecosystem, and the Laravel framework. Over 5+ years at DPMPTSP DKI Jakarta Provincial Government, I have been responsible for engineering and maintaining strategic public service systems such as Jakevo, queue management systems across service units, and provincial career portals.

With extensive experience in government system integrations and relational database optimization (PostgreSQL & MySQL), I ensure every API endpoint is fast, secure, and ready to serve citizens through automated and resilient backend solutions built on PHP, Python, and Node.js.

“A system's true resilience is tested under peak loads, maintaining sub-second latency, rigorous audit trails, and uninterrupted uptime.”

— Ravi Zulfikar (Zivar)
PILLAR // 01

Performance & Scalability

Optimizing database queries and RESTful API endpoints for high-volume public-service workflows serving Jakarta citizens.

PILLAR // 02

Security & Integrity

Implementing SSO authentication, integrated audit trails, and government-grade data security standards.

PILLAR // 03

Cross-Agency Interoperability

Building secure data bridges and standard interfaces connecting departments across the DKI Jakarta Provincial Government.

02SKILLS

Skills & Technologies

A comprehensive stack of programming languages, databases, and repository tools used to build enterprise-grade systems.

LAYER // 016 TECHNOLOGIES

Backend & Programming

Backend architecture, high-performance RESTful APIs, modular business logic, and system integrations.

PHPLaravelPythonNode.jsRESTful APISSO & OAuth2
LAYER // 026 TECHNOLOGIES

Database & Storage

Relational database design, query & index optimization, and data warehouse synchronization.

PostgreSQLMySQLQuery TuningData WarehouseDatabase IndexingData Interoperability
LAYER // 036 TECHNOLOGIES

Tools & Repository

Version control management, team collaboration, Linux server administration, and IoT automation.

GitGitHubGitLabLinux Server AdminServer IntegrationIoT / Raspberry Pi
LAYER // 044 TECHNOLOGIES

Frontend & Web

Responsive web interfaces, modern UI styling, and WebView integration for Android applications.

JavaScriptHTML5 & CSS3Tailwind CSSAndroid WebView
03PORTFOLIO

Featured Projects

A curated collection of public licensing portals, enterprise API gateways, and internal government management systems built for DKI Jakarta.

Jakevo: Public Licensing Portal DPMPTSP DKI Jakarta
#01 · Live Production
FEATURED PROJECT

Jakevo: Public Licensing Portal DPMPTSP DKI Jakarta

Public licensing portal: application forms for PBG/PM1 & various permits, SSO login, cross-agency data integration, officer processing ETA, application reports, and internal cloud drive (Jakevo Drive).

LaravelPHPPostgreSQLSSO
API Jakevo: DPMPTSP Service Integration
#02
Live

API Jakevo: DPMPTSP Service Integration

Centralized integration API for DPMPTSP services: endpoints for external government agencies (SIP, IMB permits), real-time timeline endpoints, and internal microservices.

LaravelREST APIPostgreSQL
Internal Staff Management System DPMPTSP
#03
Live

Internal Staff Management System DPMPTSP

Internal personnel web system: meeting agenda scheduling module and upcoming agenda event tracking.

LaravelPHPMySQL
Karir Jakarta: DTKTE DKI Jakarta
#04
Live

Karir Jakarta: DTKTE DKI Jakarta

Provincial career portal: job listings CRUD, cross-department job & event data synchronization, and integrated Jobfair module.

LaravelREST APIMySQL
Official Website DTKTE DKI Jakarta
#05
Live

Official Website DTKTE DKI Jakarta

Comprehensive backend for Disnakertransgi portal: authentication, news/content CRUD, and provincial information management modules.

LaravelPHPMySQL
DPMPTSP DKI Jakarta Queue System
#06
Live

DPMPTSP DKI Jakarta Queue System

Multi-branch service queue management system for all PTSP units: backend, responsive frontend, and Android WebView app for staff calling booths.

LaravelREST APIAndroid WebView
Social Agency Backend API DKI Jakarta
#07

Social Agency Backend API DKI Jakarta

Backend API for Jakarta Social Agency (Dinsos): data CRUD operations to custom geotagging location services.

LaravelREST APIGeotagging
Internal System
PTSP Data Warehouse
#08

PTSP Data Warehouse

High-performance backend API for aggregating and displaying provincial licensing analytics on the PTSP data warehouse dashboard.

LaravelREST APIPostgreSQL
Internal System
E-Sarpras PTSP Performance System
#09

E-Sarpras PTSP Performance System

End-to-end IT hardware and network technician performance tracking system, independently built from the ground up with digital signature verification workflows.

LaravelPHPDigital Signature
Internal System
Server Room Climate & Temp Monitoring
#10

Server Room Climate & Temp Monitoring

Real-time temperature and humidity monitoring system for server rooms using Raspberry Pi + IoT sensors, pushing data via API with live visualization.

PythonRaspberry PiIoTREST API
Internal System
SIPKA: Archival Information System
#11

SIPKA: Archival Information System

Archivist performance assessment and archival grading system adopted across the Jakarta Provincial Government.

LaravelPHPMySQL
Internal System
Company Profile Website
#12
Live

Company Profile Website

Full end-to-end company profile platform: content management, product showcases, and integrated manual payment handling.

LaravelPHPMySQL
04OPEN SOURCE

Open Source Packages

PHP packages authored and published on Packagist.

PHP / PACKAGISTLatest release

zivar/laravel-security

Laravel security package: cryptographic hardware-bound licensing and anti-tamper protection for Laravel applications.

$composer require zivar/laravel-security
packagist.org/packages/zivar/laravel-securityView on Packagist ↗
PHP / PACKAGISTLatest release

zivar/laravel-starter

Zivar System Laravel Starter Kit: RBAC, Audit Logging, Media Center & System Telemetry.

$composer require zivar/laravel-starter
packagist.org/packages/zivar/laravel-starterView on Packagist ↗
05TRACK RECORD

Professional Experience

Career journey in software engineering and system integration within DPMPTSP DKI Jakarta Provincial Government.

Software Programmer

DKI Jakarta Gov
2023 to present

DPMPTSP DKI Jakarta Provincial Government, Pusdatin

Developing and maintaining public service applications built on PHP/Laravel, engineering RESTful APIs, and optimizing PostgreSQL/MySQL queries for provincial licensing systems.

Data & System Integrator

DKI Jakarta Gov
2021 to 2023 (2 years)

DPMPTSP DKI Jakarta Provincial Government, Pusdatin

Managing inter-agency data integration across government systems, database synchronization, and ensuring high reliability for public licensing interoperability.

STANDARDS & COMPLIANCE

Official Skill Certifications

Licenses, competency certifications, and official technical trainings completed.

Download CV (PDF)
Skill CertificationLKP Duta

PHP Programming Certificate

LKP Duta

Official competency certification in PHP programming covering backend business logic, relational database interaction, clean code architecture, and web application design. Registered with Certificate No: K9990278.

Registration / Credential No:: K9990278
Skill CertificationAkademy

Concept HTML Programming Skill Certificate

Akademy

Certification in modern web interface standards, semantic HTML5 document hierarchy, basic accessibility, and modern styling readiness.

Official Training & CertificationKOMINFO (DTS)

Android Developer Training (Kotlin)

Ministry of Communication and Informatics RI (KOMINFO), Digital Talent Scholarship

Comprehensive Android mobile application development program utilizing Kotlin, conducted officially by the Ministry of Communication and Informatics RI (DTS). Registration No: 0448079131-21/OA.DTS/BLSDM.KOMINFO/2020.

Registration / Credential No:: 0448079131-21/OA.DTS/BLSDM.KOMINFO/2020
06CONTACT

Let's Work Together

Interested in collaborating or have a question? Send a message. I usually reply within 24 hours.

Direct Email

ravizulfikar17@gmail.com

Location

North Jakarta, Indonesia

WIB (UTC+7)
LinkedIn ↗

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