Andreas Krassnitzer

Hi, I'm Andreas.

AI Consultant · Senior Software Architect · Founder of clir.ai
Forbes 30u30 · Ironman & Ultra Marathoner

I help businesses ideate, plan and execute AI initiatives to automate processes and increase efficiency - from introducing off-the-shelf tools to developing new AI-first software from scratch.

Get in touch to learn how your business can benefit from AI immediately while remaining compliant with regulations and mindful of data privacy.

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Forbes 30u30
AI Startup Founder
Ironman Finisher

Services

AI infrastructure and production-ready systems for scaling initiatives

Law Accelerator

Transform your law firm with AI-powered automation. Save thousands of euros monthly through intelligent document analysis, contract review automation, and streamlined M&A processes.

Document Analysis Contract Review M&A Automation Legal AI Process Optimization
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AI Software Development

Custom AI applications built from scratch. RAG systems for document search, intelligent workflows with autonomous agents, model training on your data, and comprehensive system validation.

RAG AI Workflows Model Training System Validation Data Analytics
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Testimonials

What clients say

"Working with Andreas was consistently excellent. He developed a custom legal domain expert system for us, based on state-of-the-art RAG architecture and LLM workflows. We were particularly impressed by his technical depth and analytical approach, which led to an increase in answer accuracy from 55% to over 95%."

Daniel Schaffeld

Weyv Technologies GmbH

"Andreas impressed us with his expert-level knowledge and strong problem-solving abilities. We engaged his services to develop a RAG-based knowledge retention platform and were thoroughly satisfied with his timely delivery and systematic approach to optimizing performance through automated, objective evaluation metrics."

Valentin Frossard

FP Digital Solutions GmbH

Andreas consulting on AI architecture

Portfolio

A selection of successfully executed projects

RAG Systems

5+ Implementations

Implemented RAG-enabled backends in more than 5 projects with LLM-based workflow & agentic capabilities.

RAG LLMs Multi-tenancy OAuth2.0 JWT
Result: Multi-tenant architecture with secure permissions

Legal Domain Expert System

95%+ Accuracy

Custom splitters & automated benchmarking with reliable confidence scoring for increased transparency.

Milvus FastAPI Django Postgres Self-RAG
Result: 95%+ accuracy with confidence scoring

clir.ai

Forbes 30u30

Solo-founded, served as CEO & CTO. Attracted 6-figure funding and led projects with large headphone manufacturers.

AI/ML Startup Patent Funding
Result: 6-figure funding, Forbes 30u30 recognition

clir Voice & clir Hearing

4.8★ App Store

Thousands of active users with fully local AI models. Improved inference by 100× using custom 1D-convolution layers.

Mobile AI On-device Optimization iOS
Result: 4.8★ rating, 100× speed improvement

SoC AI Model Porting

<20mW Power

Implemented inference pipeline in C with 4, 8 & 16-bit hybrid quantization, yielding 5× memory reduction at >95% quality.

C/C++ Quantization Embedded Optimization
Result: <20mW power, 5× memory reduction

Neural Beamformer

Samsung Approved

Capable of separating speech from background noise with directionality. Using n mics, separates >n speakers.

Audio AI Signal Processing Beamforming Multi-mic
Result: "Impressive!" — Samsung Head of Advanced Audio Lab

AI-Based Call Assistant

Azure Deployed

Whisper3 transcription + OpenAI pipeline with AI-generated summaries & smart suggestions on scalable Azure architecture.

Whisper3 OpenAI Azure macOS
Result: Scalable meeting assistant with local transcription

Tesla Autopilot Challenge

Outperformed Benchmark

Route-planning system for electric cars in C++. Pre-LLM era, tight time constraints. Solution outperformed Tesla's reference.

C++ Algorithms Optimization EV
Result: Outperformed Tesla's internal benchmark
Engineering team working with AI systems

Tech Stack

Tools and technologies for production-ready AI systems

Languages

Python C++ Swift JavaScript TypeScript SQL C Objective-C Java C#

Frameworks

FastAPI Django Flask PyTorch TensorFlow LangChain React Express.js Node.js Hugging Face LlamaIndex

Infrastructure & DevOps

Docker Kubernetes Terraform GitHub Actions Azure GCP AWS Jenkins GitLab CI Prometheus Grafana Nginx Redis Azure Machine Learning Azure App Service Plan

Databases

PostgreSQL MySQL Milvus Chroma Firebase MongoDB Elasticsearch Pinecone Weaviate Qdrant Redis SQLite Google Firestore MS SQL Server

AI Specialties

RAG LLMs Embeddings Whisper Prompt Engineering MLOps Model Deployment Vector Search NLP Quantization Model Optimization Signal Processing On-device AI / Edge AI Real-time Inference

About

Where technical excellence meets performance mindset.

An engineer at heart, I've been building software since I was 12. A path that led me from computer science via mechanical engineering to advanced AI research and cutting-edge, production-ready software architecture.

I founded clir.ai, an AI startup for the hearing-impaired, patented distributed AI technology, led high-impact collaborations with startups and corporations, and was included in Forbes 30 Under 30. Today, I help high-growth companies architect production-grade AI systems that scale at the highest levels of quality.

My work blends deep technical expertise, sharp business thinking, and a high-performance mindset both behind the screen and far beyond it.

Interdisciplinary Engineering & Economics background
Deep experience in AI research & deployment
Founder and hands-on systems architect
Trusted advisor to fast-moving companies

Beyond the Screen

Andreas at the Ironman World Championship finish line

A firm believer in the philosophy of Misogi, through deliberate challenges of great physical intensity. I've completed multiple Ironman races (including two in one week and a world championship), run ultramarathons, and regularly push my limits both mentally and physically.

Multiple Ironman Finisher
Ultramarathon Runner
World Championship Competitor

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