Andrius Rumša Email & Phone Number

Trier, Rp, De

Neckarsulm, Baden-Württemberg, Germany

▸ Enhanced Customer Review Summarization Pipeline by optimizing LLM utilization across its layers.▸ Designed evaluation methodologies for the summarization pipeline, including end‑to‑end testing, layer‑wise evaluation, and synthetic data generation for robust performance assessment.▸ Investigated innovative techniques such as bootstrap‑driven extraction and fine‑tuning of LLAMA‑3.1‑8B‑Instruct model using LoRA to enhance summarization quality and efficiency.▸ Addressed challenges in NLP evaluation, including the detection of hallucinations and the development of metrics for assessing correctness in a production environment.

Neckarsulm, Baden-Württemberg, Germany

▸ Played a key role in the Automatic Customer Review Summarization project for Lidl Online Shop contributing to its development from inception to A/B testing and winning first place at the company’s International Data & AI Conference.▸ Developed and optimized summarization layers using LLMs and embedding models, incorporating state‑of‑the‑art NLP research to improve pipeline architecture.▸ Leveraged Azure tools (Databricks, OpenAI, DevOps) for project development and scaling, employing advanced prompting techniques and integrating LangChain and Langfuse for enhanced functionality.▸ Analyzed large datasets with NoSQL, Spark and Pandas, conducted experiments using MLFlow, and maintained comprehensive documentation to support high‑quality coding standards.

Karlsruhe/Trier, Germany

▸ Developed a project to prevent democracy‑threatening crises by analyzing 607,639 German tweets.▸ Predicted social sentiment using semi‑supervised learning across 7 topics by fine‑tuning the German‑BERT model.▸ Conducted time series analysis of sentiment over events with the Event Registry API.▸ Ensured comprehensive dataset preparation.

Master Of Science - Ms, Natural Language Processing

Activities and Societies: Drummer in the university big band "Swing UniT"

Bachelor'S Degree, Linguistics

Activities and Societies: Captain of the university basketball team

Semester Abroad, Applied Linguistics

Guest Auditor, Philosophy

Bachelor'S Degree, Informatics And Computer Engineering

Activities and Societies: Captain of the university basketball teamNot completed (reason: changed major to Linguistics after the 4th.