Available for Internship

Hello, I'm

Zefanya
Ecklezia
Saragih

I am a Full-Stack Developer

A 6th-semester undergraduate Informatics student at Del Institute of Technology specializing in full-stack development. I build scalable web and mobile applications — from dynamic front-end interfaces to robust back-end services and RESTful APIs.

Zefanya Saragih
Full-Stack Developer
ZE
@zefanyaecklesia.s
Online
3.52
GPA
5+
Projects
1st
Award
About

A bit about
who I am

I'm a 6th-semester Informatics student at Del Institute of Technology, Laguboti, Indonesia. My passion lies in bridging design and engineering — building applications that are functional, intuitive, and scalable.

My expertise spans front-end development (React.js, TypeScript, Next.js), mobile engineering (Kotlin, Flutter, Jetpack Compose), and back-end architecture (Laravel, Node.js, Go, RESTful APIs). I take pride in writing clean, maintainable code and delivering user-centric digital solutions.

Outside of coding, I serve as a Teaching Assistant for Procedural and Functional Programming, and I'm actively involved in organizational leadership on campus as a member of the Informatics Student Association's Communications & Information Division.

North Sumatra, Indonesia  ·  Expected Graduation: Sep 2027  ·  GPA: 3.52/4.00

View GitHub Profile ↗
Programming Languages
JavaScriptTypeScript Go (Golang)Python JavaKotlin DartPHP CC++ SQLAssembly Haskell
Web & Back-end Technologies
HTMLCSS Next.jsReact.js Node.jsExpress.js Inertia.jsLaravel Tailwind CSSBootstrap Redux
Mobile / Other
FlutterKtor Android StudioJetpack Compose
Tools & Testing
Git & GitHubDocker FigmaPostman API VS CodeIntelliJ IDEA JestPHPUnit JUnitPlaywright CypressBlender
Databases
PostgreSQLMySQL SQLiteMariaDB
Soft Skills
Analytical Thinking Problem Solving Communication Team Collaboration Time Management Adaptability Attention to Detail Continuous Learning

Achievements & Certifications

01
Bronze Medal — Lombok Essay Competition (LEC) 6
National Essay Competition
May 2026
02
1st Place — National Scientific Writing Competition
LLDIKTI Region I × APTISI North Sumatra · 80th Indonesian Independence Anniversary Event
Aug 2025
03
Regional Participant — Indonesian Student Debate Competition (KDMI) 2025
National Student Debate Competition
Sep 2025
04
Participant — GEMASTIK XVIII UX Design Competition
National University Technology Competition
Aug 2025
Artificial Intelligence
Professional Skill in Artificial Intelligence
MySkill  ·  Mar 2026
Web Development
Skill Specialization in Website Development Fundamental
MySkill  ·  Mar 2026
UI/UX Design
UI/UX Design Certification
Dibimbing.id  ·  Digital Skill Fair 48.0  ·  Feb 2026

Work & Organisational

Procedural Programming Teaching Assistant
Del Institute of Technology · Laguboti, Indonesia
Assisted in delivering Procedural Programming in C language for 50+ undergraduate students, covering data types, variables, operators, control structures, arrays, strings, memory allocation, and enumerations. Graded quizzes, assignments, and lab reports with 100% on-time feedback.
Functional Programming Teaching Assistant
Del Institute of Technology · Laguboti, Indonesia
Delivered Functional Programming lessons to 50+ undergraduate students in Haskell language, covering recursion, higher-order functions, lambda expressions, and tree structures. Reviewed and assessed 125+ programming assignments, practical reports, and projects with constructive technical feedback.
Physics IB Laboratory Assistant
Del Institute of Technology · Laguboti, Indonesia
Supervised lab sessions for 50+ undergraduate students on physics topics including kinematics, dynamics, rotational motion, and fluid mechanics. Evaluated 165+ laboratory reports to ensure accuracy of calculations and clear documentation.
Member — Communications & Information Division
Informatics Student Association · Del Institute of Technology
Created and scheduled 3+ content posts weekly to ensure consistent communication and branding for the student body. Documented 10+ major organizational events, producing high-quality media assets for digital publication and organizational archives.
Member — Department of Internal Affairs
Student Executive Board · Del Institute of Technology
Maintained the annual Student Activity Calendar for 10+ student organizations to prevent overlapping events. Facilitated coordination meetings between 4 student bodies (Executive Board, Representative Council, Study Program Associations, Activity Units) to streamline decision-making processes.
Member — Google Developer Student Club
Del Institute of Technology
Engaged in peer-led learning sessions to strengthen practical development skills and problem-solving abilities. Actively expanded technical knowledge and professional network through seminars, tech talks, and community-driven initiatives.
Matriculation Program Assistant
Del Institute of Technology · Laguboti, Indonesia
Onboarded 500 new students to university digital tools and learning platforms, reducing first-week support queries by ~30%. Coordinated with lecturers and organizing committees to ensure smooth execution of preparatory and onboarding programs.
Projects

Things I've built

Desa Sibarani Nasampulu
Desa Sibarani Nasampulu
Front-end Developer
Village information system covering both a responsive website and a native Android mobile app. The website features 5+ pages across mobile and desktop viewports with RESTful APIs improving page-load by 25%. The mobile app (Kotlin) delivers 5+ core features with 10+ integrated APIs for real-time village services and public announcements.
Kotlin Android REST API
Mobile ↗
Website ↗
In Progress
Website LPPM IT Del
Website LPPM IT Del
Full-Stack Developer
Research publication platform for Del Institute of Technology. Dynamic dashboards and publication interfaces using React.js for institutional research tracking, with role-based access control and authentication APIs.
React.js RESTful API Auth & RBAC
Social Media Web App
Social Media Web Application
Full-Stack Developer
Full-stack social platform with Laravel (PHP) and RESTful API, implementing 100% secure user sessions. Optimized relational database models under MVC architecture, reducing query response times by 20%.
Laravel PHP MVC CRUD
GEMASTIK SayLocal
GEMASTIK — SayLocal
UX Designer
Digital platform supporting local products through marketplace and learning features, with regional language translation and cultural guidance for tourists. Submitted for GEMASTIK XVIII UX Design Competition (Aug 2025).
Figma UI/UX Design Prototyping User Research
DermaLogic AI
DermaLogic AI
AI Developer
Rule-based skin disease expert system using Certainty Factor (CF) inference. Features differential diagnosis ranking, symptom pattern analysis, automated clinical report generation, and an interactive consultation chatbot.
React.js Vite Expert System Certainty Factor
GitHub Portfolio
GitHub Portfolio
Software Engineer
Complete collection of academic and personal projects showcasing full-stack web development, artificial intelligence systems, and interactive applications built with modern technologies and best practices.
Full-Stack React Laravel AI/ML

Let's Work Together

I'm open to internship opportunities, collaborative projects, and new experiences, especially in Full-Stack Development where I can leverage my expertise across front-end, back-end, and mobile technologies. If you're looking for someone analytical, detail-oriented, and passionate about creating user-centric digital solutions with clean code and best practices, I'd be delighted to collaborate with you.