Bio Lumbantoruan
System Architect
Professional Summary
Senior fullstack architect with 10+ years of experience building high-performance web applications across fintech, e-commerce, and SaaS domains. Proven track record of architecting scalable systems — from payment gateways processing transactions across 69 countries to AI-powered freelance marketplaces. Deep expertise in React, Next.js, Astro, Node.js, NestJS, FastAPI and modern cloud infrastructure. Built automated AI image generation pipelines for commercial product photography using fal.ai and Nano Banana. Combines engineering excellence with business acumen to deliver solutions that satisfy both C-level stakeholders and end-users while maintaining strict regulatory compliance.
Experience
System Design & Architect
Srabutan.com
- •Architected AI-powered matching system for freelance marketplace
- •Designed scalable microservices: portfolio management, real-time collaboration, secure payments
- •Led full-stack development with GitHub Actions, Docker, Railway
Tech: React • Vue • JavaScript • Tailwind • Docker • Python • Railway
Senior Web Developer
CITT Services
- •Delivered consulting for Pepperstone, TitanFX, BaxiaMarkets, Funded Prop BX, Traderscolo, Liquidity Connect
- •Built web apps with React, Vue, WordPress, Laravel, HubSpot CMS
- •Architected backend systems, automated data sync with n8n, Python, Flask
- •Docker deployment on DigitalOcean & Google Cloud
Tech: Ubuntu • React • PHP • WordPress • Laravel • Vue • Docker • n8n • Python • DigitalOcean
Host Integrator
Wirecard (PT. Aprisma Indonesia)
- •Engineered payment gateway integrations at Wirecard subsidiary
- •Connected Prisma Gateway with banking systems for 14,000+ corporate clients across 69 countries
- •PCI-DSS compliance across all payment implementations
Tech: Java • HTML5 • CSS3 • Spring • Spring Boot • Hibernate
Key Projects
Srabutan.com — Freelance Marketplace
Architected Indonesia's freelance marketplace with AI-powered matching, microservices architecture, and real-time collaboration. Full-stack development with CI/CD pipelines.
BaxiaMarkets — Financial Platform
Built a 5-year fintech platform serving global traders with WordPress/Laravel/React stack, SumSub KYC compliance, multi-PSP payment processing, and responsive client portal.
CrosSyncOrder — Forex Trade Copier SaaS
Designed a real-time trade synchronization system across MetaTrader 4/5 and cTrader using WebSocket + ZeroMQ, containerized with Docker/Kubernetes on Railway.
AI-Powered Sales Dashboard
Full-stack dashboard with Next.js + FastAPI backend, integrating Google Gemini AI for natural language sales insights with markdown rendering and data visualization.
Technical Skills
Education & Certifications
Bachelor of Information System — Swiss German University
Specialization in Software Development • GPA 3.34
Certifications: