System Architect & Engineer

Wahyu Tri Kusumo, S.Kom

Engineering Business-Critical Systems, Not Just Software

I architect and build high-performance systems tailored for operational efficiency. Specializing in ERP solutions, automated workflows, and implementing AI agents designed for real operational impact, correctness, and long-term reliability.

Wahyu Tri Kusumo

Core Expertise

Backend Architecture

  • ERP & Internal Business Systems
  • API & Service-Oriented Architecture
  • Secure & Compliant Logic
  • High-volume Transactional Systems

DevOps & Infrastructure

  • Linux Server Administration
  • Deployment & Isolation
  • Monitoring & Tuning
  • Automation via Cron & Queues

RAG & AI Agents

  • Custom AI Agents for Business
  • Tool-enabled AI with Live Data
  • Workflow Automation
  • WhatsApp Bot Integration

Selected Works

Multi-Tenant ERP Platform

Automan — Business Operations ERP

Architected and developed a production-grade, multi-tenant ERP platform for repair & service businesses. Covers CRM, inventory, accounting, repair workflow, reporting, role-based access control, and strict tenant data isolation. Designed for real-world operational complexity, high transaction volume, and audit-ready data consistency.

PHP NodeJS MariaDB / MySQL Multi-Tenant High-Transaction
E-Learning Platform

Interactive Online Course System

Built an interactive online learning platform with enforced evaluation checkpoints. Participants must pass assessments correctly to unlock subsequent materials. Includes protected video streaming with anti-download mechanisms to secure premium educational content.

PHP Secure Video Progress Control
Automation System

Automated File Fetch & Delivery Platform

Developed an automated system capable of fetching files from various external sources, processing downloads server-side, handling queues and failures, and delivering completed files securely to end users without manual intervention.

Linux Automation Queue Processing File Orchestration
AI & Knowledge Systems

RAG-Based AI Chat Systems

Implemented Retrieval-Augmented Generation (RAG) AI chat systems integrated with structured databases and curated knowledge sources. Enables accurate, context-aware responses with controlled access to live business data.

Python TypeScript RAG AI Agents Live Data Tools
Event & Payment System

Event Management Platform with Payment Gateway

Built a complete event management system covering registration, ticketing, participant management, and payment gateway integration. Includes automated confirmation, access control, and operational workflows.

Payment Gateway Event Workflow Automation
Application Design

Custom Mobile-First Business Applications

Designed and implemented custom business applications using a mobile-first UI approach, optimized for usability on low-end devices while maintaining complex backend logic, integrations, and data consistency.

Mobile-First UI Custom Workflow API-Driven

Technology Stack & Infrastructure

Languages & Runtime

PHP JavaScript TypeScript Python Node.js

Data & Infrastructure

MariaDB / MySQL PostgreSQL Linux Server Schema Design

Specialized Tools

WA Automation AI Integration API REST/SOAP

Get in Touch