M. Mifthahul Amien
CTO at PT Mesin Kantong Ajaib (Mantiq)
Building AI automation systems and self-hosted infrastructure from Bandung, Indonesia.
An architect-operator hybrid who designs SOPs, pricing frameworks, and system architecture — while still debugging down to kernel and Docker internals. With a physics background and 5+ years in industrial IoT, now building AI automation systems and self-hosted infrastructure on a no-vendor-lock-in principle: clients fully own their systems.
Areas of Expertise
Backend & Infrastructure
Service architecture with NestJS and Next.js, PostgreSQL/Supabase, and self-hosted stacks running on Docker, Coolify, and Traefik.
AI & LLM
OpenRouter integration, RAG with hybrid retrieval and reranking, multi-agent architecture, and MCP server development.
DevOps & Systems
Self-hosted stack management, automated backups, and dev/prod database isolation.
Hardware & IIoT
Fingerprint and RFID access control, face recognition, eKTP-as-RFID integration, and Raspberry Pi devices.
Featured Projects
View all projectsAutoEmail CS
FeaturedAn inbound email agent system for customer service. NestJS + Next.js + pgvector, hybrid RAG with reranking, and a three-layer anti-hallucination setup.
- NestJS
- Next.js
- PostgreSQL (pgvector)
- TypeScript
AI Doppelganger
FeaturedA proof of concept for cloning reasoning and speaking style, running as a multi-agent pipeline.
- OpenRouter integration
- RAG (hybrid retrieval + reranking)
- Multi-agent architecture
- TypeScript
ERP Shared Core
FeaturedCustom finance and ledger module architecture with double-entry bookkeeping, immutable posting, a reversal pattern, and polymorphic audit logging.
- ERPNext
- PostgreSQL
- TypeScript
Let's talk
Open to conversations about AI automation, system architecture, and self-hosted infrastructure.
Get in touch