Marvin Mathy

Software Engineer (Full-Stack) · Banking & Securities

marvinmathy@gmx.de · linkedin.com/in/marvin-mathy · marvinmathy.de · Wiesbaden, Germany

Software engineer with more than six years in banking technology, since 2022 in the securities product team at Commerzbank. I build features for securities account opening end to end, with React and TypeScript on the front end and Java, Spring Boot and Oracle SQL on the back end, and I work on the back-end service behind the portfolio overview. Most recently I migrated our test automation from Selenium to Playwright and set up a dedicated Jenkins pipeline for automated test runs. I know Vue.js from my time at SCOOP Software and Next.js from japanfaden.de, a platform of my own that I take from concept to production.

EXPERIENCE

Apr 2022 – present

Software Engineer (Full-Stack), Commerzbank AG

Securities product team, Frankfurt, Germany

Build features for securities account opening end to end with React, TypeScript, Java, Spring Boot, REST APIs and Oracle SQL
Develop the back end of the Spring Boot service for the portfolio overview
Migrated automated tests from Selenium to Playwright and set up a Jenkins pipeline for automated test runs
Develop and maintain production applications in a regulated banking environment, with a focus on maintainability, quality and WCAG accessibility
Align technically with adjacent systems and work in agile, international teams
Mentor trainees and junior engineers as they start on development projects
Build internal proofs of concept for AI-assisted workflows and LLM-based automation of banking processes in Python
Collabathon 2023: overall winner of a hackathon with around 100 participants

Oct 2020 – Mar 2022

IT Trainee, Commerzbank AG

Frankfurt, Germany and New York

18-month trainee programme with rotations across several areas of banking IT and project work in agile teams
International project experience during an assignment at the New York branch

2018 – 2020

Working student and intern (full stack), SCOOP Software GmbH

Wiesbaden, Germany

Developed front end and back end of a big data monitoring system (Vue.js, Java)
Bachelor's thesis on the usability of the system's dashboards

PERSONAL PROJECT

since Jul 2026

japanfaden.de

Publicly available Japan travel platform

Concept, design, development and production operation on my own, from the interface through data storage and business logic to deployment
Next.js, React, TypeScript, Supabase and Vercel, automated tests with Vitest

EDUCATION

2015 – 2020

B.Sc. Media Informatics (Medieninformatik)

RheinMain University of Applied Sciences, Wiesbaden

2024

AEVO certificate, qualified to train apprentices

IHK Wiesbaden, German dual vocational system

SKILLS

Back end: Java, Spring Boot, REST APIs, Oracle SQL, Node.js
Front end: React, TypeScript, Next.js, Vue.js, accessibility (WCAG)
Testing, delivery: Git, Jenkins, Playwright, Selenium, Vitest
Other: Python, Supabase, Vercel
AI: LLM agents, AI-assisted development with Claude Code and Codex
Languages: German (native), English (B2, professional project experience in New York)

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