Hi, I'm Gerrant.
Gerrant Enriqo Hiya, S.Kom.
IT Developer
Bachelor of Computer Science (S.Kom.) · Jakarta, Indonesia
Software and IoT developer with experience building full-stack web applications, microcontroller telemetry pipelines, and scalable database architectures.
Engineering practical systems with clarity and discipline.
Bachelor of Computer Science (S.Kom.) graduate from Universitas Tarumanagara with experience as a Research Assistant focusing on recommendation systems, Full-Stack Web Developer at FTI Untar and JIAC, and IT Consultant across Laravel, Flutter, and IoT systems.
From building Laravel web applications and REST APIs to designing ESP32 microcontroller telemetry systems with GPS tracking, my work emphasizes maintainability, practical performance, and verifiable engineering outcomes.
Featured Projects
Selected software platforms and hardware IoT systems engineered for practical utility and reliability.
Web & IoT-Based Logistics Fleet Tracking Application
Real-time GPS telematics and vehicle fleet tracking solution with hardware sensor integration, cellular data transmission, and live mapping dashboard.
E-Commerce with TF-IDF Recommendation System
System Architecture & Engineering
E-Commerce with TF-IDF Recommendation System
E-commerce platform integrating content-based recommendation algorithms (TF-IDF) for personalized product discovery, search, and sales insights.
UntarX Application
UntarX is an integrated digital platform developed by Universitas Tarumanagara to provide convenient access to various campus services in one application. It connects students, staff, tenants, and the university community with features such as events, news, promotions, tenant services, residence booking, registration, and appointment management.
IT Helpdesk & Ticketing Platform
IT Helpdesk by Ghiya is a multi-company SaaS platform for managing and centralizing IT support operations. It provides a complete ticketing workflow, integrated ticket chat, assignment and progress tracking, notifications, analytics, reporting, audit logs, role-based access control, and organizational management. The platform is designed to help organizations improve IT support efficiency, transparency, and response management.
Professional Experience
Engineering, research, and technical consulting experience across software systems and IoT devices.
IT Staff Tarumanagara Enterprise
Tarumanagara Foundation · Full-time
Developed and maintained mobile applications using Laravel and Flutter, including database design, feature development, and backend integration to ensure scalable, efficient, and reliable application performance.
- • Successfully integrated Flutter mobile apps with high-throughput Laravel RESTful APIs.
- • Improved database query responsiveness for enterprise service operations.
Information Technology Developer
S&P Law Office · Contract
Develop and manage web application based on CodeIgniter and Laravel Framework.
- • Standardized legal case archiving and client record management.
Multimedia
GBI HMJ · Part-time / Volunteer
Operating the Sony NXCam camera, Mini Pearl 512A lighting mixer, and Avolites Pearl 2008.
- • Consistently maintained zero-disruption live broadcasting across 2+ years of production operations.
Core Competencies
Categorized technologies and frameworks applied across engineering and research workflows.
Applied Research & IoT
GPS Telematics (NEO-8M) · Recommendation Systems (TF-IDF) · Internet of Things (IoT) · SIM800L / Cellular IoT · ESP32 & Microcontroller Firmware
Software & Web Development
Software as a Service (SaaS) · Laravel Framework · Flutter & Dart · PHP · CodeIgniter Framework · RESTful APIs · Tailwind CSS & Blade
Database & Backend
SQL (Advanced / Intermediate / Basic) · MySQL Database · Oracle Database & Administration · Database Design & Normalization · Query Optimization & Indexing
IT Support & Operations
Ticketing Systems · Management Information Systems (MIS) · Analysis & Design of Information Systems · Linux & Server Administration
Multimedia & Broadcasting
Sony NXCam Broadcast Camera
Languages
Indonesian (Native / Bilingual) · English (Professional Working)
Education
Formal degree and specialization background.
Bachelor of Computer Science (S.Kom.)
Information System
Focused on Information Systems, Software Engineering, Database Management, and applied research in Recommendation Systems and IoT. Completed undergraduate thesis on IoT telematics systems, served as Assistant Lecturer across core computer science courses, and worked as Research Assistant.
"Build digital systems that turn complex problems into reliable, practical solutions."
Have a project, technical challenge, or professional opportunity?
Whether you need custom Laravel web application engineering, IoT hardware telemetry systems, or system architecture consulting, let's discuss practical solutions.