Skip to content
Frengki Josua Purba
ABOUT

Frengki Josua Purba.

Software Developer

Software Developer based in Jakarta, Indonesia. Implementation scope: web applications, business workflows, Android software, desktop tools, machine learning, computer vision, and enterprise workflow.

Story.

Technical coverage includes Laravel CRM, React and Astro interfaces, Kotlin Android applications, C# desktop software, Python data pipelines, OpenCV processing, and PEGA case-management workflows.

Informatics Engineering program, 2021–2026. Academic focus: Honda motorcycle ECU diagnostics and remapping based on direct driver access. Professional work covers CRM operations, company websites, internal web applications, and a sanitized PEGA insurance case study.

Experience.

Jun 2025 – Jun 2026

Software Developer

PT Hansen Karya Mandiri

Implemented a Laravel CRM for client, project, survey, proposal, deal, task, document, reporting, and role-based workflow management.

Oct 2024 – Apr 2025

Full-Stack Developer

PT Empat Teknologi Indonesia

Implemented responsive company websites and internal web interfaces with reusable components, bilingual content, and project-specific application flows.

Feb 2024 – Jun 2024

IT Developer Intern

PT Asuransi Sinar Mas

Worked on insurance case-management workflows during MSIB Batch 6 using PEGA stages, routing, validation, and rule-based process concepts.

Education.

2021 – 2026

Bachelor's Program in Informatics Engineering

Institut Teknologi Perusahaan Listrik Negara (ITPLN)

Research: HONDA MOTORCYCLE ELECTRONIC CONTROL UNIT DIAGNOSTIC AND REMAPPING SYSTEM BASED ON DIRECT DRIVER ACCESS

Technical Scope.

Web & Frontend Engineering

Technologies & Frameworks

  • HTML
  • CSS
  • JavaScript
  • TypeScript
  • React
  • Astro
  • Vite
  • Tailwind CSS
  • React Router
  • React Helmet Async
  • Framer Motion
  • PHP
  • Laravel
  • Blade
  • Inertia.js
  • Bootstrap
  • Alpine.js

IMPLEMENTATION SCOPE

Responsive interfaces, reusable components, bilingual content, and maintainable frontend delivery.

Backend & Application Systems

Technologies & Frameworks

  • Node.js
  • NestJS
  • REST API
  • JWT
  • RBAC
  • Prisma
  • MariaDB
  • MySQL

IMPLEMENTATION SCOPE

Authentication flows, role-based access, REST APIs, business workflows, and relational data access.

Data, Machine Learning & Computer Vision

Technologies & Frameworks

  • Python
  • Streamlit
  • scikit-learn
  • Pandas
  • NumPy
  • NLTK
  • OpenCV
  • Matplotlib
  • Pillow
  • joblib

IMPLEMENTATION SCOPE

Data-processing pipelines, model-inference interfaces, explainable classification demos, and image-preprocessing tools.

Mobile & Desktop Engineering

Technologies & Frameworks

  • Kotlin
  • Android XML
  • Room
  • ViewBinding
  • RecyclerView
  • ViewModel
  • C#
  • .NET
  • WinForms
  • SerialPort
  • Pygame

IMPLEMENTATION SCOPE

Native Android applications, Windows desktop software, interactive games, and device-oriented application flows.

Enterprise Platforms & Workflow

Technologies & Frameworks

  • PEGA Platform

IMPLEMENTATION SCOPE

CRM operations, document processing, case-management stages, routing, validation, and role-based workflows.

Design, Tooling & Delivery

Technologies & Frameworks

  • Figma

IMPLEMENTATION SCOPE

Interface prototypes, reusable design patterns, version-controlled delivery, and deployment workflows.

Tools & Platforms

  • Figma
  • Git
  • GitHub
  • Linux
  • SSH
  • cPanel
  • npm
  • pnpm
  • Android
  • PEGA Platform
  • SMTP
  • Google Analytics

Implementation Principles.

Structure Before Styling

Define content hierarchy, state boundaries, data flow, and interaction rules before visual refinement.

State-Visible Interaction

Motion, feedback, loading, errors, and controls must communicate the active system state.

Scoped Dependencies

Add libraries, services, and abstractions only when a verified implementation requirement exists.

PROJECT SCOPEREADY FORTECHNICAL REVIEW.

OPEN CONTACT→