About Me
I'm Arif Wahyu Prasetyo, a Software Engineer based in Boyolali, Indonesia, with 3+ years of experience building SaaS applications, booking platforms, and payment workflows.
I specialize in React, TanStack Start, Next.js, and TypeScript, with full-stack experience in Laravel, Node.js, Express.js, REST APIs, PostgreSQL, and MySQL.
At Alpha Red Solutions, I work on a ticketing frontend migration and workforce-management features. My earlier work includes multi-tenant venue booking, subscription payments, and role-based access controls.
Skills & Technologies
My toolkit spans frontend development, backend integrations, databases, deployment, and system design.
Front End
HTML5
CSS3
JavaScript
TypeScript
React.js
TanStack Start
Next.js
Vite
Tailwind CSS
Material UI
TanStack Query
Zustand
Back End
Laravel
Go
Node.js
Express.js
Supabase
Firebase
REST API Design
Xendit Payment Integration
Database
PostgreSQL
MySQL
Version Control & Deployment
Git
GitHub
Cloud Deployment
Azure
Development Practices & Tools
Agile/Scrum
Code Review
Performance Optimization
AI-Assisted Development
System Design
Server/Client-Side Rendering
Caching Strategy
Asynchronous Job Processing
Real-Time Data Delivery
API Contract Design
Modular Service Architecture
Professional Experience
Alpha Red Solutions
Software Engineer
Apr 2026 - Present
Selangor, Malaysia (Remote)
Software agency focused on AI and client platform engineering.
- Migrated a Vue.js ticketing frontend to React and TanStack Start, implementing a 5-stage booking journey with availability, reservation, and payment APIs.
- Deduplicated session checks and redundant order-detail calls, reducing order-history requests by 30%.
- Built configurable required-field rules for 79 employee-profile fields across 3 forms.
- Developed employee claims, profile approvals, and task reporting connected to backend APIs.
Legal Plus
Full Stack Engineer
Jan 2026 - Apr 2026
Bandung, Indonesia
Legal technology company building practice management software.
- Implemented 4 subscription payment flows for renewals, upgrades, additional storage, and user accounts.
- Implemented role-based permissions across 60+ pages and panels.
- Built 15+ SaaS pages and components connected to backend APIs, payments, and permission controls.
Related projects
Playfields
Full Stack Engineer
Mar 2025 - Jan 2026
Sleman, Indonesia (Remote)
Sports technology company building venue booking and management software.
- Architected and built a multi-tenant SaaS platform with real-time reservations, automated payments, and operational reporting.
- Integrated Xendit payment capture, reminders, and reconciliation, reducing manual payment tracking by 90%.
- Developed a Tailwind CSS dashboard for venue analytics, revenue reports, bookings, and customer insights.
- Delivered sprint commitments on time with cross-functional teams in an agile environment.
Related projects
Business Watch Indonesia
Full Stack Developer
Jun 2023 - Mar 2025
Boyolali, Indonesia
Nonprofit focused on agriculture and community development.
- Maintained and enhanced a Kotlin Android application with 15,000+ Google Play downloads.
- Built freemium subscriptions, candidate filtering, and recruiter analytics to establish the platform’s primary recurring revenue stream.
- Automated Mailchimp newsletters, increasing weekly active users by 28% and improving retention by 35%.
- Managed requirements, architecture, development, QA, and post-launch iteration for 2 platforms without a dedicated product manager or technical lead.
Related projects
Education
Amikom University Yogyakarta
Bachelor of Science in Informatics
Jan 2019 - Jul 2023 · Sleman, Indonesia
GPA 3.78/4.00