Hey, I'm Marvin

Full-Stack Engineer / Data Scientist

Baden, Switzerland

I'm a Full-Stack Engineer and Data Scientist who transforms complex technical challenges into practical solutions. Currently at Octotronic, I develop a smart factory platform that revolutionizes manufacturing operations. Previously, I developed AI compliance tools at Apiax and led the development of an AI Tutor at FHNW's Institute for Data Science.

I run several side projects, including PostPulse (AI content for startups) and ReportGPT (document automation). In addition, I recently completed my B.Sc. in Data Science at FHNW, where I balanced studies with simulations work in tech.

Portrait of Marvin von Rappard

My Professional History

Jan 2025 - Present
Octotronic AG logo
Octotronic AG Portrait of Marvin von Rappard Full-Stack Engineer

At Octotronic, I develop smart factory solutions that bridge the gap between operational technology and IT systems. As a Full Stack Engineer, I contribute to OctoCore's unified data platform, implementing scalable architectures that transform manufacturing operations. My role involves creating solutions that help leading manufacturers break down data silos and achieve full transparency across their production processes.

Feb 2024 - Jan 2025
Institute for Data Science at FHNW logo
Institute for Data Science at FHNW Portrait of Marvin von Rappard Research Scientist

At FHNW's Institute for Data Science, I led the development of an innovative AI tutoring system that transformed learning experiences for Bachelor students across multiple disciplines. By constructing a platform that combined Large Language Models with Retrieval Augmented Generation (RAG) technology, I created an adaptive learning environment that provided personalized support to students. The system bridged the gap between traditional education and cutting-edge AI technology, making advanced tutoring accessible to various academic fields.

Nov 2022 - Jan 2024
AI Lab at Apiax logo
AI Lab at Apiax Portrait of Marvin von Rappard Data Scientist

In Apiax's AI Lab, my teammates and I spearheaded the development of advanced compliance automation systems using cutting-edge AI technologies. I architected and implemented document processing solutions powered by Large Language Models (LLMs) and Retrieval Augmented Generation systems. Our work streamlined regulatory workflows and automated compliance verification processes, which in turn significantly reduced manual work for our clients.

Aug 2019 - Oct 2022
Product Team at Apiax logo
Product Team at Apiax Portrait of Marvin von Rappard Full Stack Engineer

At Apiax, I drove key technical initiatives during the company's critical growth phase. I architected and implemented scalable IT infrastructure that supported the company's expansion from start-up to established FinTech player. As a core member of the Product Team, I built progressive web applications that simplified digital compliance for enterprise clients. In addition, I led multiple projects and mentored EFZ candidates through their final examinations, which contributed to both product development and team growth.

My Skills

I build end-to-end software solutions, from backend systems to user interfaces. My technical toolkit includes full-stack development, data engineering, and machine learning, which I've applied across manufacturing, compliance, and education sectors.

  • Software Engineering

    Backend development with Java, TypeScript and Golang. Python for data analysis and machine learning. Focus on scalable architecture and clean code.

  • Database Technologies

    SQL, MongoDB, and GraphQL for data storage and retrieval. Design of efficient database schemas and queries.

  • Frontend Web Development

    Web applications with Angular, React and SvelteKit. Component-based architecture and responsive design.

  • Deep Learning

    Neural network development with PyTorch. Experiment tracking and optimization using Weights & Biases.

  • Natural Language Processing

    Text processing and analysis using transformer models. Implementation of LLMs and RAG systems.

  • Prompt Engineering

    LLM prompt design and optimization. System prompts for complex AI applications.

My Education

Sep 2021 - Sep 2024
FHNW - University of Applied Sciences Northwestern Switzerland logo
FHNW - University of Applied Sciences Northwestern Switzerland Portrait of Marvin von Rappard Bachelor of Science in Data Science

BSc in Data Science covering statistical analysis, machine learning, and software engineering. Completed while working in tech, combining academic theory with practical industry experience.

Aug 2016 - Jul 2020
Kanti Baden logo
Kanti Baden Portrait of Marvin von Rappard Student at Informatics Middle School

Technical education focused on Java programming and IT fundamentals. Completed with Berufsmatura in economics, combining technical and business knowledge.

Contact me

I'd love to talk! Feel free to reach out via any of the following channels: