Hello, World!

Hi, I'mMatthias

Data Scientist & Machine Learning Engineer

About Me

I'm a passionate Data Scientist and Machine Learning Engineer with 5+ years of experience transforming complex data into intelligent AI systems and delivering cutting-edge solutions across banking, public administration, and technology companies.

My expertise spans the entire ML/AI pipeline — from data analysis and model development to deploying production-ready systems. I specialize in RAG architectures, LLM fine-tuning, recommender systems, computer vision, and NLP. I have strong software engineering skills that enable me to build scalable, enterprise-grade AI applications.

I excel at bridging the gap between cutting-edge AI research and real-world business applications, with experience in solution architecture and leading ML projects from concept to production.

Data Science & Analytics

Transforming raw data into actionable insights through advanced statistical analysis and ML techniques.

AI & Machine Learning

Developing RAG systems, LLM fine-tuning, and intelligent applications for enterprise use cases.

ML Engineering

Building production-ready ML pipelines and deploying scalable AI systems in enterprise environments.

DevOps & MLOps

Implementing CI/CD pipelines, containerization with Docker, and ML model deployment strategies.

Skills & Expertise

MLTechnical Skills

Python95%
Machine Learning90%
Deep Learning85%
Data Analysis95%
SQL80%
Big Data (Spark)75%
NLP85%
Computer Vision80%
R70%
Cloud (AWS/Azure)75%

DSTools & Technologies

🧠TensorFlow🔥PyTorch🔬scikit-learn🐼Pandas🔢NumPy📊Matplotlib📓Jupyter📝Git🐳Docker⚙️Kubernetes📈Tableau📊Power BI🔄Airflow📦MLflow🌊Streamlit

AISoft Skills

  • Problem Solving & Critical Thinking
  • Communication & Data Storytelling
  • Team Collaboration
  • Project Management
  • Adaptability & Continuous Learning
  • Business Acumen

Work Experience

Jul 2024 - Dec 2024

Senior Machine Learning Engineer / Solution Architect

Raiffeisen Schweiz Genossenschaft

95%
Accuracy
40%
Improvement
  • Supported development of AI RAG Foundation and implemented first RAG MVP
  • Developed ReportGenie: Smart Financial Report Compilation system using LLMs
  • Implemented evaluation pipelines, citation features, and hyperparameter optimization
  • Solution architecture for enterprise AI systems
Dec 2023 - Apr 2024

Senior Machine Learning Engineer

Öffentliche Verwaltung (NDA Project)

92%
Accuracy
35%
Improvement
  • Designed and implemented RAG architecture for sensitive data handling
  • Fine-tuned open-source LLMs for domain-specific applications
  • Built chatbot frontend with streaming communication
  • Implemented hybrid retrieval and reranking with Elasticsearch
Aug 2022 - Jul 2024

Senior Software Engineer (Full-Stack)

BANK-now AG

88%
Accuracy
30%
Improvement
  • Led frontend and backend development for B2C customer platform
  • Architected microservices using Spring Boot, Java, and Kotlin
  • Implemented JWT-based authentication and integrated with ti&m channel suite
  • Served as Epic Lead for major feature development
Feb 2022 - Nov 2023

Data Scientist / ML Engineer

ABIZ Hochschule Luzern

90%
Accuracy
32%
Improvement
  • Developed sequential recommender system for 1M+ customers using transformer-based deep learning
  • Implemented food trend detection in social media streams with NLP
  • Created pose estimation system for fencing movement analysis
  • Applied contrastive learning to prevent representation degeneration
Nov 2019 - Jun 2021

Machine Learning Engineer / Software Engineer

Schindler Group

85%
Accuracy
25%
Improvement
  • Designed and developed global web application for elevator control software testing
  • Implemented JWT-based authentication via Active Directory
  • Built ML pipeline for predicting temperature-related elevator failures
  • End-to-end testing and database design

Featured Projects

Explore my portfolio of cutting-edge projects spanning AI/ML, full-stack development, and innovative solutions that have delivered measurable impact for leading organizations.

AI RAG Foundation
🤖 AI/ML
PythonAzure OpenAIFastAPI+2

AI RAG Foundation

Raiffeisen SchweizSolution Architect

Developed AI RAG Foundation with evaluation pipeline, citation features, and hyperparameter optimization.

ReportGenie
🤖 AI/ML
Spring BootKotlinPython+2

ReportGenie

Raiffeisen SchweizSenior ML Engineer

Smart Financial Report Compilation system using LLMs for automated business report generation.

On-Premise RAG Chatbot
🤖 AI/ML
PythonLLM Fine-tuningRAG+2

On-Premise RAG Chatbot

Government AgencySenior ML Engineer

Secure on-premise RAG chatbot for sensitive government data with fine-tuned LLMs (NDA Project).

Sequential Recommender System
🤖 AI/ML
PyTorchTransformersMLOps+1

Sequential Recommender System

ABIZ Hochschule LuzernData Scientist

Next purchase prediction system for 1M+ customers using transformer-based models and contrastive learning.

BANK-now B2C Platform
💻 Full-Stack
Next.jsReactSpring Boot+2

BANK-now B2C Platform

BANK-now AGSenior Software Engineer

Modern banking customer platform with microservices architecture and React frontend.

Food Trend Detection
🤖 AI/ML
PyTorchNLPTime Series+1

Food Trend Detection

ABIZ Hochschule LuzernML Engineer

ML application for detecting food trends and novelties from social media streams using NLP.

Fencing Movement Analysis
👁️ Computer Vision
TensorFlowComputer VisionPose Estimation

Fencing Movement Analysis

ABIZ Hochschule LuzernML Engineer

Computer vision system for analyzing and correcting fencing movements using pose estimation.

Elevator Test Automation
💻 Full-Stack
Next.jsReactNode.js+2

Elevator Test Automation

Schindler Aufzüge AGSoftware Engineer

Global web application for elevator control software test automation with JWT authentication.

Predictive Maintenance System
🤖 AI/ML
Apache SparkTensorFlowPython+1

Predictive Maintenance System

Schindler Group Ltd.ML Engineer

ML pipeline for predicting temperature-related elevator door failures using log message analysis.

HSLU Mobile Apps
📱 Mobile
AngularNode.jsJava+1

HSLU Mobile Apps

Hochschule LuzernMobile App Developer

Native Android and iOS mobile applications for university operations and student services.

Education & Certifications

Education

2021 - 2023

Master of Science (MSc) in Engineering

Hochschule Luzern

Profil Data Science mit Fokus Machine Learning. Advanced studies in machine learning algorithms, deep learning, data analytics, and AI system design.

Key Courses:
Advanced Machine LearningDeep LearningData AnalyticsAI System Design
2017 - 2021

Bachelor of Science (BSc) in Computer Science

Hochschule Luzern

Major in Artificial Intelligence & Visual Computing. Comprehensive foundation in computer science with specialization in AI and computer vision technologies.

Key Courses:
Artificial IntelligenceComputer VisionMachine LearningSoftware Engineering

Certifications

☁️

Google Professional Data Engineer

Google Cloud

2022
🧠

AWS Certified Machine Learning - Specialty

Amazon Web Services

2021
🔄

TensorFlow Developer Certificate

Google

2020
🧩

Deep Learning Specialization

DeepLearning.AI

2019

Publications & Research

Mastering Fencing Techniques with Machine Learning: A Video-Based Classification and Correction System

IEEE Conference Publication
2023

Get In Touch

Interested in collaborating or have a project in mind? Feel free to reach out!

Connect

Availability

Currently in a full-time position, but open to discussing exciting opportunities in AI/ML and data science.

Download Resume