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00 / AI Engineer & Automation Specialist

Herman Donawan

Herman Donawan

AI Developer & Programmer

Available for freelance / full-time

Versatile AI Engineer with 3+ years of experience designing production-grade LLM systems, RAG pipelines, autonomous agents, and AI data enhancement workflows.

01 / Profile

HD

Herman Donawan

AI Developer & Programmer

  • LocationBoyolali, Central Java, Indonesia
  • Emailkangmaswawan21@gmail.com
  • Local Time (WIB)--:--:--

01 / Key Achievements

+14%

Model Accuracy (HumanEval)

-30%

Data Verification Costs

5.0/5.0

Upwork Contract Rating (15+)

02 / Signal Node

Signal ◆ Realtime

AI Signal Node: Active transmission. Continuous loop stream.

02 / Recent Engagements

  1. AI Trainer & RLHF Specialist

    Outlier 2023 — Present

    Refined 50k+ code samples.

  2. Freelance Python & AI Developer

    Upwork 2023 — Present

    Delivered 12+ production-grade client projects.

  3. Community Ambassador

    Base Ecosystem 2023 — Present

    Onboarded active Web3 developers.

04 / Technical Infrastructure

Python / TypeScript / Next.js / FastAPI / Docker / PostgreSQL / Redis / CI/CD / Solana / LangChain / vLLM / Pinecone

03 / Built Systems

AI Avatar & Real-Time Radio DJ

24/7 zero-latency voice synthesis.

Next.jsFastAPIWebRTCElevenLabs
◆ LIVE

Autonomous DeFi Liquidity Agent

Real-time data-driven rebalancing.

Solana DLMMPythonHermes
◆ LIVE

More Projects

AI Productivity Chrome Extension Suite

Serving 2,000+ active users.

TypeScriptPlasmo
◆ LIVE

03 / Solana Live

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06 / Voice Agent

Tap to demo voice

05 / RAG Playground

Ask about indexed docs, or upload a new one.

04 / Core Tech Stack

PythonTypeScriptNext.jsFastAPIDockerPostgreSQLRedisCI/CDSolanaLangChainvLLMPinecone

09 / Contact

Let's build something together.

Available for AI engineering, LLM evaluation, voice data, and automation. Questions, ideas, or just want to say hi - inbox is open.

Book 15min Call