Max-Julien Gabriel Teetz
Gummersbach
Summary
Results-driven and proactive Java Developer skilled in designing and maintaining Spring Boot and Spring Batch microservices within Agile Scrum teams. Proficient in automating containerization with Docker in GitLab CI/CD pipelines and orchestrating on-premise deployments via Ansible playbooks. Increased automated test coverage to over 80% using comprehensive JUnit and Cucumber suites. Adept at analyzing complex use cases to deliver efficient, scalable solutions that accelerate delivery and drive quality.
Overview
2
2
years of professional experience
Work History
Java Developer - Working Student
DEVK Insurance
02.2023 - 02.2025
- Developed and maintained Java batch microservices using Spring Boot and Spring Batch within a Scrum team (8 developers, 1 Product Owner, 1 Scrum Master, 3 QA)
- Automated containerization with Docker in the GitLab CI/CD pipeline and managed on-premise deployments via Ansible playbooks
- Increased test coverage to over 80% through automated JUnit and Cucumber test suites
- Analyzed complex use cases and delivered efficient, agile solutions
- 20h/ Week
IT Consulting - Internship
Mindsquare AG
08.2022 - 08.2022
- Gained insights into consulting processes and system navigation in SAP S/4HANA
IT Consulting - Internship
Mindsquare AG
11.2021 - 11.2021
- Gained insights into consulting processes and system navigation in SAP S/4HANA
Volunteer Help
Kindergarten
07.2019 - 09.2019
Education
Bachelor of Science - Computer Science
Technical University of Cologne
Cologne, Germany05.2025
Secondary Education -
Städt. Lindengymnasium Gummersbach
Gummersbach, Germany06.2019
Primary Education -
Katholische Grundschule Marienheide
Marienheide, Germany07-2010
Skills
- Languages and Platforms: Java, Kotlin
- Architecture & Frameworks: Microservices, REST APIs, Spring Framework, MVVM
- Testing & QA: JUnit
- DevOps & Infrastructure: Docker, Ansible, GitLab CI/CD, Git
- Databases: MySQL, SQLite
- Also familiar with: Android (native), Kotlin Coroutines, Jetpack Compose, ARCore, Firebase
Languages
German
Bilingual or Proficient (C2)
Englisch
Advanced (C1)
Publications
FoldAR: Using the Bended Screen of Foldable Smartphones for Depth Discrimination in Augmented Reality - SUI '24: Proceedings of the 2024 ACM Symposium on Spatial User Interaction
Timeline
Java Developer - Working Student
DEVK Insurance
02.2023 - 02.2025
IT Consulting - Internship
Mindsquare AG
08.2022 - 08.2022
IT Consulting - Internship
Mindsquare AG
11.2021 - 11.2021
Volunteer Help
Kindergarten
07.2019 - 09.2019
Bachelor of Science - Computer Science
Technical University of Cologne
Secondary Education -
Städt. Lindengymnasium Gummersbach
Primary Education -
Katholische Grundschule Marienheide
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