Available for projects — Berlin / Remote

Your AI prototype
should already be
in production.

I turn AI experiments into reliable, production-ready systems — LLM agents, RAG pipelines, and automation workflows that actually ship.

Book a Free Discovery Call

Free  ·  30 minutes  ·  No commitment

10+
Years engineering
9
Hackathon podiums
1st place wins
PhD
Physics, TU Berlin
Dr. Martin Kaiser

Dr. Martin Kaiser

AI & Automation Engineer · Berlin

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Dr. Martin Kaiser - AI/ML Engineer
Berlin, Germany

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Services

Specialized AI engineering for startups and scale-ups. I take projects from concept to production — fast, reliable, and built to last.

🧠

LLM Integration

Production-ready LLM systems that go beyond demos — reliable pipelines, evaluated outputs, and cost-optimized deployments.

  • RAG pipelines & knowledge bases
  • Prompt engineering & evaluation
  • LangChain / LangGraph agents
  • LLM-as-judge & monitoring
Book a call to discuss
⚙️

AI Automation & n8n

End-to-end workflow automation powered by AI — from document processing to multi-step agent pipelines with n8n at the core.

  • n8n workflow design & deployment
  • API & webhook integrations
  • Document processing pipelines
  • Multi-agent orchestration
Book a call to discuss
🎯

AI Strategy & Consulting

Turn your AI ideas into a concrete roadmap. From use-case discovery to architecture design and PoC delivery.

  • Use-case discovery & scoping
  • Architecture design & review
  • PoC development
  • Team enablement & training
Book a call to discuss

Featured Projects

WhatsApp AI Agent

2026

Context-aware conversational AI agent delivered over WhatsApp. Built with LangChain for agent orchestration, a custom MCP server for structured tool calling, and LightRAG for knowledge graph-based long-term memory — enabling the assistant to retain context across sessions and reason over a connected knowledge base.

PythonLangChainMCPLightRAGWhatsApp Business APIDocker

AI Recruitment Engine

2025

End-to-end AI pipeline for automated talent matching at a recruiting startup. LLM-powered CV parsing extracts structured candidate profiles; semantic embeddings and pgvector power similarity search to rank candidates against job requirements. Reduced manual screening from hours to seconds per job posting.

PythonLangChainOpenAIpgvectorPostgreSQLFastAPI

n8n Multi-Agent Automation Platform

2025

Production automation workflows built on n8n, orchestrating LLM agents, RAG pipelines, and third-party APIs to replace manual business processes. Covers document processing, lead qualification, data enrichment, and notification routing — all with error handling and human-in-the-loop escalation.

n8nLangChainOpenAIRAGREST APIsWebhooks

3× Hackathon Champion — AI 2025/2026

2025 – 2026

1st place at ElevenLabs Hackathon (n8n automation category), 1st place at NEAR AI Hackathon (AI agent category), and 1st place at AI Hardcore Hackathon (LLM cost & latency optimisation). Nine podium finishes total across AI-focused hackathons in 2025–2026.

n8nLLM AgentsPythonPrompt EngineeringAI Optimisation

Technology Stack

Production-grade tools and frameworks for building intelligent, scalable AI systems

LLM & AI Frameworks

LangChain
LangGraph
OpenAI API
RAG Pipelines
Prompt Engineering
Fine-tuning
Context Engineering
MCP
Agent Orchestration
LLM-as-a-Judge
Multi-step Workflows

Backend & APIs

Python (6+ years)
FastAPI
Flask
Pydantic
REST API Design
Async Python
Swagger/OpenAPI
Microservices Architecture

Data & Vector Databases

PostgreSQL
pgvector
Qdrant
Vector Search
Embeddings
SQL

Cloud & Infrastructure

Azure
AWS
Docker
Kubernetes
Terraform
GitHub Actions (CI/CD)
Ansible
Linux

Automation & Tools

n8n
Bash Scripting
Makefiles
Cron Jobs
Git/GitHub

Development Practices

DevOps
Test-Driven Development
Agile/Scrum
Team Collaboration & Mentorship
8+
Frameworks & Tools
LLM & AI Stack
15+
Backend Technologies
APIs & Infrastructure
Production
Grade Expertise
Enterprise-ready solutions

Work Experience

AI & Automation Engineer

FreelanceBerlin, Germany
Sep 2025 - Present
  • WhatsApp AI agent built with LangChain, custom MCP server, LightRAG knowledge retrieval. Deployed via Cloudflare Tunnel with PM2.
  • Designed and deployed multi-step agent workflows in n8n — covering data pipelines, approval chains, and conditional routing.

AI Engineer

JENLY.AIBerlin, Germany
Mar 2025 - Aug 2025
  • Engineered and benchmarked prompts for healthcare content generation, achieving 80% alignment with expert content using LangChain, FastAPI, pgvector, Docker, and Streamlit.
  • Built automated prompt evaluation platform for systematic LLM and RAG parameter optimization — reducing manual testing effort significantly using Python, FastAPI, and Streamlit.
  • Developed table extraction and calculation workflows with accurate data validation and compliance requirements using Python, FastAPI, and Pandas.

AI/ML Engineer

Federal Institute for Material Research & Testing (BAM)Berlin, Germany
Mar 2023 - Oct 2024
  • Built end-to-end AutoML platform covering noise reduction, feature engineering, model training, testing, and visualization using scikit-learn, Streamlit, and Plotly.
  • Built data pipelines and managed PostgreSQL databases — instrumenting systems end-to-end for reliable data flow.
End-to-end AutoML platformTop-10 Business Plan Contest

Delivery Rider

GorillasBerlin, Germany
Jan 2021 - Mar 2023
  • In parallel: Completed Data Science & Data Analyst bootcamps at Stackfuel and self-studied AI/ML alongside 30hrs/week.

Data Scientist / PhD Student

Technische Universität BerlinBerlin, Germany
Jan 2015 - Dec 2020
  • Completed PhD in Experimental Physics (Magna Cum Laude) in collaboration with BAM — publishing 8 peer-reviewed articles including 3 as first author.
  • Built end-to-end data pipelines, simulations, and visualizations using MATLAB.
PhD Magna Cum Laude8 peer-reviewed articles3 as first author

Physics Teacher

Rheingau-GymnasiumBerlin, Germany
Feb 2018 - Aug 2018
  • Taught physics and mathematics to 120 students across 4 classes.

Automation Engineer / Data Scientist

Federal Institute for Material Research & Testing (BAM)Berlin, Germany
Jun 2011 - Sep 2014
  • Built the world's most accurate quantum yield measurement system for nanoparticles using LabVIEW, NI DAQ, and MATLAB — recognized as Paper of the Month.
Paper of the MonthWorld-leading measurement accuracy

Achievements & Awards

🥈
2nd Place
2026

AI Builders Open Claw Hackathon

Open Claw Track

Secured second place in the Open Claw track, building a cutting-edge AI solution against top builders.

View Details
🥉
3rd Place
2026

Needle Hackathon

General Track

Third place in the general track of the Needle Hackathon, delivering an innovative AI-powered application.

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🏆
1st Place
2025

ElevenLabs Hackathon

n8n Category

First place in the n8n category, combining ElevenLabs voice AI with n8n automation workflows.

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🏆
1st Place
2025

NEAR AI Hackathon

Shade AI-Agent Category

First place winner in the Shade AI-Agent category, demonstrating advanced AI agent development skills.

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🏆
1st Place
2025

AI Hardcore Hackathon

LLM Prediction Latency/Cost Category

Won first place for optimizing LLM prediction latency and cost, showcasing deep understanding of AI performance optimization.

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🏆
1st Place
2025

Masterschool Student Hackathon

SMS-Service - Wolves of Wall Street App

First place for developing an innovative SMS-Service application during the Masterschool hackathon.

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🥈
2nd Place
2025

Distributed AI Hack Berlin

Open Track

Secured second place in the open track of Distributed AI Hack Berlin, competing against top AI developers.

View Details
🥈
2nd Place
2025

IronHack DevOps Hackashow

DevOps Track

Second place in the DevOps track, demonstrating expertise in cloud infrastructure and automation pipelines.

View Details
🏅
Top 10
2024

Business Plan Contest TOP 10

BPW Berlin-Brandenburg

Achieved Top-10 placement in the prestigious Berlin-Brandenburg Business Plan Contest for innovative sensor analytics platform.

🎯 6 Hackathon Wins in 2025 & 2 Podiums in 2026

Demonstrating rapid prototyping and innovative AI solutions

Frequently Asked Questions

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