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Laurin Guttwein

Software Engineer · Full Stack (Java / Spring Boot / Angular) · Games (Unity / C#)

By day, I build Full Stack software with Java, Spring Boot, and Angular. After that, I like to build my own games with the Unity game engine instead. I want to build stuff that actually matters :)

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Portrait of Laurin Guttwein

Projects

Under construction

About

I finished my Abitur at the technical gymnasium of Friedrich-August-Haselwander-Gewerbeschule in Offenburg in 2023. After that, I went straight into a dual apprenticeship as an IT specialist for application development at Markant Services International. I scored 97 out of 100 on the IHK exam. Since July 2026, I've worked there as a Junior Software Engineer.

At Markant, I build full-stack applications with Java, Spring Boot, Angular, and PostgreSQL. I'm currently working on an internal tool for product marketing copy. One of its features is a LIX-based readability score, which I developed for my graduation project and adapted to the intended audience.

Outside work, I make games with Unity and C#. A few are on itch.io. I like projects that end with something you can click, test, or play, so I'd rather keep building than spend forever polishing a slide deck.

Skills

Daily

  • Java
  • Spring Boot
  • Angular
  • PostgreSQL
  • Scrum
  • Jira

Solid

  • Docker
  • Terraform
  • Azure
  • React
  • Kotlin

Basics

  • Kubernetes
  • Networking
  • Neo4j

Side

  • Unity
  • C#
  • Coffee

Experience

  1. since 07/2026

    Junior Software Engineer

    Markant Services International GmbH · Offenburg

    • Stuck around after the apprenticeship, same company, same stack, just doing Full Stack work as a Junior Software Engineer now.

  2. from 09/2023 to 07/2026

    Apprentice FI Application Development

    Markant Services International GmbH · Offenburg

    • Helped build an internal AI tool for product marketing copy, using Java, Spring Boot, Angular, and PostgreSQL.
    • Built a deterministic readability score based on LIX for my IHK graduation project, adjusted for the target audience.
    • Shipped features in a Scrum team using Jira, including integration with existing systems.
    • Picked up Docker, Terraform, and Azure along the way, without calling myself an expert in any of them.
    • Had insights into various other teams that used different technologies and methodologies.

  3. from 09/2020 to 07/2023

    Abitur

    Gewerblich-Technische Schule Offenburg · Offenburg

    • Graduated with a focus on Information Technology, where computer science, software development, and technical problem solving really started clicking.

  4. from 2013 to 07/2023

    ...The time before

    Private Learning · Germany

    • I started my coding journey by building games in Game Maker 8.1 when I was 10.
    • After building some basic games, I started learning Java in 2016 for the sole purpose of creating Mods for the game I love: Minecraft.
    • I continued to build Minecraft Mods and learned more and more stuff in parallel: programming concepts, databases, version control, how to keep a bigger project from falling apart.
    • Later I slowly explored other things too, like web development and Python.

Contact

Whether you just want to say hi or you've got questions, just reach out :)

hi@laurin-guttwein.de
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