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About

Executive Summary

Fullstack engineer specialising in low-latency modern web systems and in shipping real Artificial Intelligence capability — LLMs, Vision Language Models, RAG and vector search — into production applications.

I take production SaaS platforms end to end, from PRD through to deployment, with a focus on clean architecture, performance and dependable delivery. Eleven software products across a wide range of scales — microservice architecture for an enterprise CRM, a multimodal AI-native POS, a domain-specific RAG engine, an AI mobile app, a regional MSME search platform, and a high-concurrency live-chat system for a state occasion.

Name
Muhammad Rakha Abimanyu
Role
Fullstack Developer & AI Engineer
Location
Solo Raya, Indonesia
Email
rakhaabimanyu5@gmail.com
WhatsApp
Send a message
GitHub
github.com/FlamionZ
LinkedIn
in/muhrakabi

Experience

Where I have built

  1. November 2024 – Present

    AI Engineer

    Astheron Technologies

    • Led system architecture for AI-native applications and production SaaS platforms end to end — from PRD through to deployment.
    • Designed and implemented LLM-based solutions: RAG pipelines, conversational and autonomous agents, and intelligent document processing (OCR and document parsing).
    • Built high-performance microservice backend architecture, integrating relational (PostgreSQL) and vector databases (pgvector, Qdrant) for low-latency semantic search.
    • Managed containerisation and deployment with Docker to keep systems reliable, scalable and infrastructure-efficient.
    • Translated business requirements and technical specifications into digital products ready for client use.

  2. February 2025 – April 2025

    Fullstack Developer Intern

    SD Muhammadiyah PK Nogosari

    • Built the school's academic system using Next.js.
    • Trained school staff on using the academic system.
    • Supported the school's information delivery through that system.

  3. September 2023 – September 2024

    Member, Cadre Development Department

    Koordinator Mentoring FKI UMS

    • Maintained a structured database of officers, mentors and mentees to support the organisation's administration.
    • Coordinated new-student placement and the running of the mentoring programme.
    • Served as stand-by mentor and kept coordination running to the end of the term.

Education

  1. 2022 – 2026

    Universitas Muhammadiyah Surakarta

    BSc Informatics EngineeringGPA 3.61

  2. 2019 – 2022

    PPTQ Qoryatul Quran

    MATIQ — Madrasah Aliyah Tahfizul Quran

Toolkit

What I use, and how often

Grouped by what each is for. The number beside each name is how many projects on the work page actually use it — not a self-assessment.

Frontend
  • Next.js9
  • App Router1
  • Expo1
  • React Native1
  • TanStack Query1
  • Vite1
  • Zustand1
Backend & runtime
  • Bun5
  • NestJS2
  • Express.js1
  • FastAPI1
  • Laravel1
  • Next.js API1
  • Python1
Data & search
  • PostgreSQL8
  • Redis6
  • pgvector3
  • HNSW1
  • Meilisearch1
  • MongoDB1
  • MySQL1
  • SQLite1
  • Supabase1
AI
  • LLM7
  • VLM4
  • RAG3
  • Docling2
Infrastructure
  • Vercel1

Counted from the stacks of the 11 projects on the work page.

Contact

Let's build something

Open to fullstack roles, AI engineering work and freelance projects. I usually reply within 24 hours.