Yosefa Ferdianto

Software Engineer | Full Stack Developer

Tech Enthusiast & Problem Solver passionate about leveraging technology to improve operational efficiency

About Me

Professional Summary

Experienced IT professional with over 10 years in system development and IT infrastructure management, currently serving as IT - System Development Supervisor at PT Trias Indra Saputra (Legrand Group Indonesia).

Skilled in designing, building, and maintaining integrated ERP systems and internal applications that streamline business processes across multiple departments including HR, Finance, Logistics, and Sales.

Strong background in Linux server administration, network infrastructure, and IT security compliance aligned with global standards.

Key Highlights

10+ years of experience in system development
Expert in ERP system design and implementation
Linux server administration and network infrastructure
IT security compliance and automation expertise

Experience

IT - System Development Supervisor

Legrand Group Indonesia (PT Legrand Indonesia & PT Trias Indra Saputra)

November 2023 - Present (1 year 8 months)

Current Role

Oversee local system development and infrastructure while collaborating with Regional and Group IT to ensure compliance with global IT standards.

Key Responsibilities

  • Primary contact for Group/Regional IT alignment
  • SAP implementation infrastructure support
  • Maintain on-premise Ubuntu/Debian servers
  • Supervise internal web/mobile app development

Key Achievements

  • Fulfilled SAP Go-Live infrastructure requirements
  • Maintained critical Linux-based systems
  • Managed IT for two legal entities
  • Global security compliance collaboration

IT - System Development Staff

PT Trias Indra Saputra

May 2017 - November 2023 (6 years 7 months)

Responsible for design, development, integration, and maintenance of internal systems across HR, Finance, Logistics, Manufacturing, and Sales departments.

Key Responsibilities

  • Designed web-based systems using PHP, Node.js, MySQL
  • Maintained internal ERP modules
  • Integrated third-party APIs and platforms
  • Linux server administration

Key Achievements

  • Developed full-featured web-based ERP system
  • Built WhatsApp Notification System
  • Created company-wide Attendance System
  • Improved operational efficiency through automation

System Development (Contract)

PT Trias Indra Saputra

June 2015 - May 2017 (2 years)

Analyzed business processes and developed internal web-based systems to support various departments, focusing on improving operational efficiency and data accuracy.

Key Responsibilities

  • Business process analysis and system requirements
  • Custom web applications using PHP, MySQL
  • Technical documentation and user guides
  • System testing and optimization

Key Achievements

  • Digitalized logistics and sales processes
  • Built Sales Quotation System
  • Implemented follow-up reminder system
  • Contributed to early digital transformation

Featured Projects

Showcasing key projects that demonstrate technical expertise and business impact

Integrated ERP System

Enterprise Resource Planning

PHP Node.js MySQL React Native
200+
Daily Users
++
Efficiency Gain

Comprehensive ERP system integrating HR, Finance, Sales, Engineer, Warehouse, Logistics, and Purchasing departments. Built from scratch to replace legacy systems and improve operational efficiency.

Key Features

  • Multi-department workflow automation
  • Real-time reporting and analytics
  • Role-based access control
  • API integration with external systems
2015 - Present
View Details

SAP Transition Support

Enterprise System Implementation

SAP Network Compliance Cisco Mikrotik
99.9%
Uptime
2
Legal Entities

Upgraded the company's network infrastructure to enhance reliability and coverage, aligned with Legrand Group standards, collaborated with Group IT France. Supported the post-SAP transition by reducing legacy system usage.

Key Achievements

  • Coordination with group IT (France) for implementation
  • Successful backup internet installation with dual-router configuration
  • Improved wireless coverage with additional access points
  • Legacy system usage reduction post-SAP migration
2024 - Present
View Details

AI-Powered Assistant System

Smart Automation & Communication with AI

Local LLM Open API Vision-Language
100%
Private & Offline
API Ready
Easy Integration

AI-based assistant system built on local large language models (LLMs) and vision-language models (VLMs), designed to enhance automation, communication, and intelligent interaction across platforms and real-time image processing systems.

Key Features

  • Local deployment of LLMs (Ollama, Llama.cpp) for fast and private AI processing
  • Open API for connecting AI capabilities to external applications
  • Real-time object identification using camera and VLMs
  • Contextual AI replies via WhatsApp for assistance and inquiries
2025 - Present
View Details

Microsoft Power Platform Solutions

Streamlined Workflow & Smart Integration

Power Automate SharePoint MS Forms Graph API
100%
MS Integrated
2x
Faster Approval

Workflow automation and form-based systems built using Microsoft Power Platform to simplify internal processes, enable secure access, and enhance productivity through seamless Microsoft ecosystem integration.

Key Achievements

  • IT Request Workflow for hardware/software via automated approval chains
  • Loan Application System using Microsoft Forms and Power Automate
  • Auto Backup System using SharePoint and rclone
  • Single Sign-On with Microsoft Account via Graph API
2024 - Present

Open Source & Portfolio

Explore my latest projects and contributions on GitHub

60+
Repositories
80+
Commits
2
Stars

Skills & Expertise

Programming Languages

PHP JavaScript Python SQL HTML/CSS Bash

Technologies & Frameworks

MySQL Linux Ubuntu Debian Apache Nginx Docker Git

Systems & Tools

ERP Systems SAP API Integration WhatsApp API Network Admin IT Security Project Management

Core Competencies

Problem Solving

Analytical thinking and innovative solutions

Team Leadership

Mentoring and cross-functional collaboration

Process Automation

Streamlining operations through technology

System Security

Implementing robust security measures

Education

Bachelor of Information System

STMIK Nusa Mandiri (Nusa Mandiri University)

2016 - 2020

Focus Areas

  • Software Engineering
  • Database Systems
  • Web Development
  • System Analysis

Key Projects

  • Enterprise Resource Planning System
  • Web-based Inventory Management
  • Database Optimization Techniques
  • Custom Linux Operating System

Get In Touch

Interested in collaboration or have questions about my work? I'd love to hear from you.

Contact Information

Portfolio

ganteng.my.id

Location

Jakarta, Indonesia

CV (Curriculum Vitae)

Download

Professional Status

Current Role Active
Availability Open to Opportunities
Preferred Work Remote/Hybrid

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