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Engineer with design roots

First thumbnails for influencers, now engineering for Commerzbank.

Full-stack on Commerzbank's securities product team: React and TypeScript on the frontend, Java and Spring Boot behind it. Six-plus years in banking technology, before that graphic design and editing for the German YouTube scene.

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Varo 4, Grande Finale

1.3M views, thumbnail and intro: Marvin Mathy

In the evenings, my own projects are on the table.

Six pieces of work from both tracks. The bank projects are described the way they are stated publicly.

  • Thumbnail for Varo 4, Grande Finale
    Design, VeniCraftVaro 4, Grande FinaleThumbnail and intro. 1.3M views.
  • Screenshot of japanfaden.de
    Own product, Next.jsjapanfaden.deJapan travel platform, founded and run by me.
  • Symbolic image for AI PoCs with LLM agents
    Commerzbank, Python, Google ADKAI PoCs with LLM agentsPrototypes that automate banking processes in a regulated environment.
  • Commerzbank, securities teamAccount openingUI engineering, accessibility, maintainable frontends. Full stack: React and Java.
  • Screenshot of the Collabathon 2023 app
    Hackathon, React, TypeScript, Node.jsCollabathon 2023Hackathon with about 100 participants. Grand prize plus FutureFinTech challenge, team null_para. Sustainable banking app for kids and families.
  • Still frame from an edit for LarsOderSo
    EditingVideo editing for LarsOderSoVideos with millions of views.

Built with AI agents, at work and after hours.

At work: prototypes that automate banking processes with LLM agents, built with Python and Google ADK. After hours, the same approach: this site is built in an agent workflow. One agent implements, a second validates against the spec, a review by a different model checks the diff. Decisions stay human.

Two tracks, both still running.

Design

  1. school years to around 2016VeniCraft, unge, Rotpilz, editing for LarsOderSoDesign, Varo intros and thumbnails, video editing for the German YouTube scene.
  2. since July 2026japanfaden.de, founderJapan travel platform, own product.
Collabathon 2023

Hackathon by Commerzbank, Google Cloud, Red Hat and neosfer, about 100 participants. Grand prize, both skill sets at work.

Engineering

  1. 2015 to 2020B.Sc. Media Informatics, RheinMain University of Applied Sciences
  2. 2018 to 2020SCOOP Software, WiesbadenWorking student and intern, Vue.js and Java, thesis on dashboard usability.
  3. Oct 2020 to Mar 2022Commerzbank, IT traineeTrainee rotation in New York.
  4. since April 2022Commerzbank, software engineer, account openingFull stack: React and Java. Mentoring, certified trainer (IHK Wiesbaden 2024). AI PoC with Python and Google ADK on the side.

This site can take it. That is what it is built for.

Accessibility is my day job in regulated environments. Here it can be verified, every checkbox acts on the whole page immediately.

Real checkboxes, states are saved

Test log of this page

Frontend in banking, with an eye for the picture. For teams that need both.

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