Arkar Min

AI Engineer + Backend Engineer

Arkar Min (Kei)

AI Engineer and Backend Software Engineer with 3+ years of experience building scalable backend platforms, production REST APIs, distributed systems, and LLM-powered systems.

I design practical AI product architecture around RAG pipelines, embeddings, vector search, AI agents, secure API design, multi-tenant SaaS, payment platforms, and production deployment.

3+

years shipping backend and AI systems

10+

custom software, enterprise systems and ERP systems

RAG

pipelines with embeddings and vector search

SaaS

multi-tenant platforms and production APIs

arkar.dev.kei@gmail.comView Resume

selected work

Production AI and backend systems

View all

Multi-tenant AI customer support

Biz24 AI E-commerce SaaS Platform

Production-ready SaaS platform that lets each shop run a customizable LLM-powered support agent with RAG, persistent memory, multilingual responses, and real-time chat.

PythonFastAPILangChainPostgreSQLQdrantRedis

AI image classification for construction assets

MKI AI Material & Asset Management System

AI-powered backend for classifying construction materials and assets from images, combining LLM image reasoning with AWS Rekognition Custom Labels.

FastAPIPythonOpenAIAWSAWS RekognitionMySQL

Sales workflow automation

CRM & Sales Agentic System

Modular CRM backend with an AI-assisted quotation and sales agent architecture built around historical CRM context and approved business data.

Node.jsNestJSPostgreSQLTypeORMPythonLangChain

technical focus

Tools I use to ship AI products

AI / LLM / RAG

RAG PipelinesChunkingEmbeddingsVector SearchpgvectorQdrantSemantic SearchPrompt EngineeringAI AgentsTool CallingReranking

LLM APIs & Frameworks

OpenAI APIOpenRouter APIMastraLangChainLangGraphLlamaIndexAWS Rekognition

Backend

PythonFastAPISQLAlchemyAlembicPydanticTypeScriptNode.jsNestJSExpressJSTypeORM

Data / Cloud / DevOps

PostgreSQLMySQLMongoDBRedisDockerGitHub ActionsAWS S3BullMQSocket.IO

experience

Recent roles

Origin Business Solutions

Software Engineer (Backend, AI) · On-site / Myanmar

March 2025 - Present

  • Design secure, scalable, multi-tenant backend services and REST APIs for production business systems.
  • Build RAG pipelines, LLM-powered features, AI agents, CI/CD pipelines, and Linux/AWS deployment workflows.

AlphaX

Full-stack Developer · On-site / Myanmar

July 2024 - March 2025

  • Led full-stack web applications, CMS dashboards, and e-commerce platforms with secure backend APIs.
  • Built modular TypeScript and Node.js services while collaborating with product and UI/UX teams.

Bachelor of Science in Computing

University of Greenwich · 2022 - 2025