👋 Hey, it's me

Elias.

I recently completed my Master's degree in computer science at the University of Münster, Germany. Starting October 2026, I'm a Software Developer at Arobo GmbH in Münster, where I build the frontends and apps for autonomous robots.

During my studies, I worked as a student research assistant in Prof. Dr. Malte Schilling's group on Autonomous Intelligent Systems, with a focus on LLMs, NLP, and simulation.

Publications.

📄 Classifying German Language Proficiency Levels Using Large Language Models

Elias-Leander Ahlers, Witold Brunsmann, Malte Schilling (2025)

We investigate the zero-shot, few-shot and fine-tuning capabilities of Large Language Models (LLMs) to classify German texts according to the Common European Framework of Reference for Languages (CEFR). Published at the IEEE FLLM 2025 conference.

View on arXiv

Projects.

🎓 Master Thesis

Cooperative Multi-Agent Reinforcement Learning for Charging and Routing Optimization of Electric Logistics Fleets (2026)

A cooperative multi-agent reinforcement learning framework in which every electric truck decides where and how much to charge on the real German highway network. Trained with MAPPO and attention over a graph-structured observation, in a custom simulation with real charging infrastructure, EU driver rest rules, and station failures. At 5,000 trucks, the learned policy cuts mean total travel time by 17.9% and fleet-wide queue time by 85.5% compared to a greedy A* baseline, without any additional chargers. It also generalizes from 100 to 35,000 trucks without retraining.

🚛 eTruck Simulation

Simulation of electric trucks and charging infrastructure in a logistics network using realistic battery and charging models, driver behavior, and route planning algorithms. Developed in Python with a focus on modularity and extensibility. Project @ Autonomous Intelligent Systems Group.

📚 Bachelor Thesis

How can Large Language Models (LLMs) be Effectively Used for Classifying and Transferring Between Language Proficiency Levels in German? (2024)

Evaluates zero-shot, few-shot, and fine-tuned LLMs on German texts across all CEFR levels (A1–C2). Includes a custom evaluation framework and benchmark for comparative analysis, and laid the groundwork for the IEEE FLLM 2025 publication.

View Thesis

🗂️ CEFR Dataset

A comprehensive dataset for German language proficiency classification, containing about 1,500 texts across all CEFR levels (A1-C2). Compiled from multiple sources including the FALKO and MERLIN corpora.

View GitHub

🎓 Course Selection Tool

A React-based web application to help students at the University of Münster select courses from the "Kerninformatik" area. Features include a visual schedule and automatic conflict detection.

Open Tool

Curriculum.

Arobo GmbH, Münster
2026 - present
Software Developer (Frontend & Apps)
TRATON R&D
2026
Master Thesis & Smart Routing Project
Autonomous Intelligent Systems Group
2025 - 2026
Student Research Assistant
University of Münster
2024 - 2026
M.Sc. Computer Science
University of Münster
2021 - 2024
B.Sc. Computer Science with Minor in Mathematics
Orderbase GmbH, Münster
2020 - 2024
Working Student Software Developer

Impressum.

Angaben gemäß § 5 DDG

Elias-Leander Ahlers
c/o Impressumservice Dein-Impressum
Stettiner Straße 41
35410 Hungen

📧 contact@ahlers.click