Where is Boris Niehaus based?

Boris Niehaus is based in Berlin, Germany. He works on-site in Berlin and remotely across the EU timezone.

What kind of apps does Boris Niehaus build?

Boris builds native iOS apps (Swift/SwiftUI), Android apps (Kotlin), and cross-platform apps with Flutter. He specializes in adding AI and ML features such as LLM-powered chatbots, computer vision, ML-based recommendations, and RAG pipelines.

Is Boris Niehaus available for freelance projects?

Yes, Boris is available for freelance projects alongside his full-time role. He takes on AI/ML integration, custom mobile app development, prototyping, and data pipeline projects.

What AI and machine learning technologies does Boris work with?

Boris works with Python, TensorFlow, Keras, scikit-learn, LangChain, Hugging Face Transformers, and RAG. He completed Le Wagon's 7-month Data Science & AI Bootcamp.

Hire Freelance AI Mobile App Developer Berlin

Services

AI/ML Integration Add machine learning models and intelligent features to your existing mobile or web app.

LLM/RAG-Powered Features Chatbots, smart search, document Q&A, and retrieval-augmented generation pipelines.

Custom Mobile Apps Native iOS, Android, or cross-platform Flutter apps — from concept to App Store.

Data Pipelines & Automation Scraping, ETL, scheduled jobs, API integrations, and Telegram/Slack bots.

Prototyping & MVPs Quick proof-of-concept builds to validate your idea before committing to full development.

Tech Stack

Mobile

Swift / SwiftUI Kotlin Flutter

AI / ML

Python TensorFlow / Keras scikit-learn LangChain Hugging Face Transformers RAG

Data

SQL Pandas NumPy Streamlit

Backend

Supabase Docker REST APIs Cloud Deployment

Selected Projects

Polizei Stressi Data

Interactive data archive of 45,000+ Berlin demonstrations since 2021. AI-powered topic clustering, statistical analysis, and visualizations.

ASL Recognition Demo

Real-time American Sign Language classification from webcam input using deep learning. Deployed on Hugging Face.

24/7 AI Assistant on Raspberry Pi

Self-hosted AI assistant running around the clock on a Raspberry Pi. Powered by Claude, accessible via Telegram.

Vegan Offers Telegram Bot

Scans German supermarket flyers and sends personalized vegan deals twice a week based on postal code.

TikTok Live Transcription

Dockerized Gradio app that fetches TikTok Live audio and transcribes near-real-time with OpenAI Whisper.

Chrome Extension × Arolsen Archives

Uses Google Cloud Vision API to read text in historical images and launch searches in the Arolsen Archives.

Get in Touch

Interested in working together? Reach out:

bo.niehaus@gmail.com LinkedIn

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Boris Niehaus

Freelance AI Mobile App Developer

Boris Niehaus is a freelance mobile app developer and AI integration specialist based in Berlin, Germany. With 4+ years of professional app development experience and a 7-month Data Science and AI Bootcamp at Le Wagon, he builds mobile apps with intelligent features — from ML models to LLM-powered workflows. Available for freelance projects in Berlin, Germany, and remote across the EU. Services: AI/ML integration, LLM/RAG-powered features, custom Flutter/iOS/Android apps, data pipelines, prototyping and MVPs. Tech stack: Swift, SwiftUI, Kotlin, Flutter, Python, TensorFlow, scikit-learn, LangChain, Hugging Face, RAG, SQL, Pandas, Supabase, Docker.

Flutter, Swift, SwiftUI, Kotlin, iOS, Android, Python, TensorFlow, scikit-learn, LangChain, Hugging Face, RAG, Machine Learning, Deep Learning, LLM Integration, Computer Vision, NLP

Berlin, Germany

bo.niehaus@gmail.com https://borisniehaus.de

AI-Powered Mobile Apps

Services

Tech Stack

Selected Projects

Get in Touch