01
Frontend
Server-rendered and interactive client applications.
- React
- Next.js
- Svelte
- Flutter
- Tailwind CSS
Portfolio / Software engineering
Iwan Haryatno
Web Developer
I build server-rendered web apps, backend APIs, and local AI tools. This site is a static Next.js build with an MDX journal.
Technical stack
Fig. 01Iwan Haryatno2026
Capabilities
Technical stack
Frameworks, languages, and infrastructure I use to take a system from a sketch to production.
02
Backend and systems
APIs, data models, queues, and background jobs.
- Laravel
- Node.js
- C# / WinForms
- Kotlin
- PostgreSQL
- BullMQ
03
Infrastructure
Containers, cloud hosting, and deployment pipelines.
- Docker
- docker-compose
- AWS
- Cloudflare R2
- Modal.com
04
Applied AI
Local inference, vision models, and LLM integrations.
- YOLOv8
- EfficientNet
- Hybrid Models
- Grad-CAM
- vLLM
- Prompt Engineering
Career
Professional experience
Roles, systems, and the work I shipped.
Sep 2025 to present
Software Engineer (Part-Time)
Suar Inspirasi Produktif
Built custom Ghost CMS themes and core pages, including an editorial post-locking mechanism, a subscription pipeline, and interactive popups delivered in an agile cycle.
- Ghost CMS
- Node.js
- Handlebars
- Theme Dev
- Agile
May 2025 to present
Co-Founder and Software Engineer
Promokna.id
Co-founded an event management startup and led technical execution: hosting, stack selection, and backend architecture. Built an event registration engine used for high-capacity events.
- Backend Architecture
- Event Systems
- Cloud Hosting
- Startup Tech
Jan 2025 to Nov 2025
Head of Programming Knowledge Division
INTERMEDIA Amikom Purwokerto
Led an engineering team maintaining three organizational web platforms. Ran the monthly BeSmart curriculum across several learning tracks and built AWS cloud infrastructure for active users.
- AWS Cloud
- Team Leadership
- Project Management
- Technical Training
Feb 2025
Web Developer Intern
CV. ZT Corpora (Zahira Media Publisher)
Fixed corporate email verification routines, integrated regional multi-courier shipping estimation APIs, built an offline-first QR inventory system, and mentored at an educational bootcamp.
- API Integration
- QR Logistics
- Logistics Systems
- Debugging
Jan 2024 to Nov 2024
Programming Knowledge Staff
INTERMEDIA Amikom Purwokerto
Led a full-stack Learning Management System, streamlined activity registration, and built automated certificate delivery workflows.
- Full-Stack LMS
- Automation Systems
- Process Optimization
- Git Flow
Jun 2023 to present
Frontend Web Developer (Freelance)
BakaranProject
Worked on multi-platform web applications in a Git-based workflow, implemented Golang system changes, and co-authored technical book chapters on web engineering.
- Frontend Infrastructure
- Golang Basics
- Technical Writing
- Git Control
Selected work
Project archive
Production deployments, local AI experiments, mobile applications, and full-stack systems.
01
Personal Portfolio
My personal site: an engineering blueprint portfolio with a static MDX blog.
- Next.js
- Tailwind CSS v4
- fumadocs-mdx
- Cloudflare R2
- Vercel
02
Promokna.online: SaaS Event Management Platform
A multi-tenant SaaS platform for large-scale event registration, payments, and on-site ticketing.
- TailwindCSS
- Alpine.js
- Laravel
- MySQL
03
Hadira: Integrated Attendance
A mobile attendance client with geolocation, QR check-in, and a parent dashboard for school and internship activity.
- Flutter
- Riverpod
- l10n
04
SiKLINIK: Healthcare Information System
A LAN-based clinic system that connects patient registration, medical records, pharmacy stock, and prescription pickup.
- Laravel
- MySQL
- .NET Windows Forms
- Refit
05
Intermedia LMS
An LMS for daily organizational learning, covering registration, attendance, project submission, and grading.
- Laravel
- Filament
- MySQL
- AWS EC2
Writing
Technical notes
Notes on software architecture, AI model optimization, and moving systems into production.
- nextjs
- portfolio
- mdx
Why I Rebuilt My Portfolio with Next.js
Moving from a React SPA to Next.js gave me static generation, SEO, and a proper blog. Here is how I did it.
Read article