Hello, I'm Ashhad Ahsan Rehman

Machine Learning Engineer with 5+ years building scalable AI solutions. Specialized in LLMs, multi-agent systems, and production ML. Based in Koblenz, Germany — open to relocation.

ML Engineer
LangGraph & Agents
RAG & LLMs
Production AI
Ashhad Ahsan Rehman

Generative AI & Agents

LangChain, LangGraph, Llama Index. Multi-agent systems, RAG, tool use, and agentic workflows from idea to production.

ML & Production

PyTorch, Transformers, AWS Bedrock/SageMaker, GCP Vertex AI. FastAPI, Docker, MLOps, CI/CD. SQL, PostgreSQL, vector stores.

Research & Open Source

HANRAG, KERAG, LLM Dispatcher. RAG and agent implementations; contributions to WhisperX and API tooling.

Generative AI & Agents

I build production systems with LangChain, LangGraph, and modern LLM tooling: multi-agent workflows, RAG pipelines, and agentic apps that ship.

Multi-Agent Systems

Orchestrate agents with LangGraph: state machines, tool use, and handoffs (Slack bots, internal automation, conversational platforms).

RAG & Retrieval

Design RAG pipelines with vector stores, reranking, and research-backed tricks (HANRAG, KERAG). From prototype to robust retrieval.

Agent Frameworks

LangChain, LangGraph, Llama Index. Chaining prompts, tools, and memory; debugging and deploying agent flows in production.

LLM Integration

Cost-aware routing, latency optimization, and multi-model setups. FastAPI backends, streaming, and MLOps around generative APIs.

Selected Work

Featured projects from industry and open-source: multi-agent systems, RAG, computer vision, and production ML.

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Open-Source & Research

Contributions to speech recognition, API tooling, and RAG research. Implementations include HANRAG, KERAG, and LLM routing libraries.