01/26 AI ENGINEERING
MARIO LENZIN
{ PORTFOLIO / 2026 }
BASED IN BASEL, SWITZERLAND
OPEN FOR AI & SOFTWARE ROLES
2026 AI hello@

Mario Lenzin AI (Engineer)*

Looking for* AI / Software Engineering
AI Engineering RAG & LLM Apps Computer Vision Full‑Stack Development Basel CH
01

About

{ who I am }

I’m Mario, a Junior AI Engineer at pixon engineering in Basel and a Business AI student at FHNW. I build practical AI products: meeting assistants, RAG knowledge platforms, computer‑vision pipelines and full‑stack tools that solve real problems for real teams.

My focus is turning prototypes into robust, privacy‑first applications, with LLMs hosted in Switzerland when data must stay in the country. Outside of work I’m an endurance athlete: Ironman finisher and Swisspeaks 100‑mile finisher.

  • LocationBasel, Switzerland
  • RoleJunior AI Engineer
  • StudyBSc Artificial Intelligence, FHNW
  • LanguagesGerman, English
6AI projects shipped
5Companies worked with
3Years in AI
100miLongest race finished
02

Experience

{ where I’ve worked }
  1. Jul 2026 — PresentPart‑time · Basel

    Junior AI Engineer @ pixon engineering AG

    Building and productizing Protocolito, a privacy‑first AI meeting assistant. Originally a practice project with FHNW, continued independently, and now brought to production at pixon.

    • Electron desktop app for recording, transcribing and summarizing meetings, with automatic extraction of tasks, speakers and action items
    • LLMs hosted entirely within Switzerland, so sensitive company data never leaves the country
    • Took the tool from prototype to a production‑ready application and designed the AI workflows for transcription, summarization and structured follow‑up
    • Focus on robust product architecture, data privacy and practical automation for real business use
  2. Nov 2025 — Sep 2026Part‑time · Deitingen · Hybrid

    AI Solution Architect Intern @ Megasol Energie AG

    • Deployed and customized a self‑hosted RAG / AI platform with chat interface, document indexing, connectors and company‑wide knowledge search
    • Built a knowledge management and governance service for syncing, quality‑checking and maintaining knowledge bases and metadata
    • Developed a QM tool for dynamic forms, structured data capture, evaluation and reporting, including image‑based label recognition
    • Automated telephony and CRM workflows for analyzing, summarizing and processing call data
    • Bachelor’s thesis in computer vision: image preprocessing, object detection, annotation pipeline and ML‑based model optimization
  3. Jul 2025 — Oct 2025Part‑time · Basel

    Indexing Assistant @ MDPI

    Supported the indexing team of the open‑access publisher in Basel, working with JIRA, Redmine and Microsoft Office.

  4. May 2025 — Aug 2025Part‑time · Remote

    IT Specialist @ Scatterwork GmbH

    • Advised the team on IT and AI‑related questions
    • Technically optimized and further developed the company website
    • Automated simple business processes and recurring workflows
  5. Aug 2022 — Jul 2023Full‑time · Liestal

    Commercial Intern (WMS) @ Gebro Pharma AG

    • Finance: accounts payable and receivable, payment runs, dunning, month‑ and year‑end support, VAT reporting
    • Management support: order processing from purchase to invoicing, customer care and switchboard, coordination between customers, field sales, marketing and regulatory
03

Projects

{ selected work }
Apr 2026 — Aug 2026

Bachelor Thesis @ Swiss‑PV / Megasol

Computer‑vision thesis: image preprocessing, object detection, an annotation pipeline and ML‑based model optimization for a real industrial use case.

  • Computer Vision
  • Object Detection
  • ML
Jan 2026 — Apr 2026

Rapporto

Technicians shouldn’t have to type reports. They record a voice note, Gemini extracts the hard facts (materials, hours) and the app maps them onto the company’s existing PDF templates. Offline‑first with IndexedDB, syncing when back online.

  • Next.js
  • Gemini API
  • Offline‑first
  • Full‑Stack
Sep 2025 — Jan 2026

FHNW × pixon engineering

Project module with two use cases: automatic meeting summaries (the first version of Protocolito, built on the open‑source project Meetily) and a web app that drafts feasibility studies with AI, using the company’s key sources as knowledge base. With Umut Can and Dewa Audric.

  • RAG
  • Web App
  • Teamwork
Mar 2025

E‑helper

AI chatbot for eBay customer inquiries with a FastAPI backend and React frontend. Uses RAG on eBay help pages for precise, grounded answers.

  • FastAPI
  • React
  • RAG
Sep 2024 — Dec 2024

VisionLock

Security system on a Raspberry Pi with a Camera Module 3 Wide. A trained model recognizes a set of saved faces and triggers an alarm when an unknown person appears. Built for the university module “Machine Learning”.

  • Raspberry Pi
  • Face Recognition
  • Edge ML
More

More projects & updates on LinkedIn

I post about what I’m building and learning. Endorsements, recommendations and the full history live there.

Visit my profile ↗
04

Education & Skills

{ background }
2023 — 2026

Fachhochschule Nordwestschweiz FHNW

Bachelor of Science (FH), Artificial Intelligence — Business AI

Feb — May 2025

Universidad Carlos III de Madrid

Exchange semester, Madrid

2020 — 2023

Schulen kvBL

Berufsmaturität + EFZ, Wirtschaftsmittelschule (WMS)

AI & Data

  • LLM Applications
  • RAG
  • Computer Vision
  • Object Detection
  • Gemini API
  • Speech‑to‑text
  • Machine Learning

Engineering

  • Full‑Stack Development
  • Next.js
  • React
  • FastAPI
  • Electron
  • Mobile‑First & Offline‑First Design
  • VPS / Self‑hosting

Tools & Ways of Working

  • User Requirements
  • JIRA
  • Redmine
  • Asana
  • Slack
  • Microsoft Office
  • IFAS
{ let’s talk }

Building something
with AI? Say hi.

I’m open to AI and software engineering roles and interesting collaborations in Switzerland and remote.