Sergej Kurtasch

Responsibilities / What I do: • Building machine learning and NLP models for classification and language-based tasks. • Applying LLMs and RAG to enhance model outputs and user feedback. • Performing data analysis, feature engineering, and model evaluation. • Rapid experimentation and prototyping to validate hypotheses. • Translating business questions into data-driven solutions.

At DRYLABZ (Basel, Switzerland), I worked on systematic hyperparameter optimization of survival models using XGBoost. My work focuses on evaluating survival-specific metrics, analyzing model robustness and parameter sensitivity, and exploring trade-offs between performance, stability, and model complexity in a fast-paced startup environment.

• Generative AI & LLM Architecture: Engineered production-ready AI solutions using RAG (Retrieval-Augmented Generation) systems, Vector Databases, and orchestration frameworks. Specialized in fine-tuning and deploying models from OpenAI and Hugging Face to solve complex information retrieval tasks. • End-to-End Machine Learning: Architected and deployed ML/DL models leveraging cloud-based technologies. Focused on building scalable inference pipelines and optimizing model performance for real-world applicat

• Engaged in intensive German language studies, progressing from A2 to B2 level. • Successfully achieved the B2 TELC certificate with a "Very good" mark, scoring 221.5 out of 240. • Developed strong communication skills and cultural understanding through immersive learning experiences.

International relocation from Russia to Germany. Focused on family resettlement and cultural integration.

- Increased sales in the region from $0.4 million to $12 million within 2 years. - Communicated with distributors, dealers, and customers to boost sales of the company's products. - Delivered over 100 speeches at online and offline events for dealers and customers.

- Oversaw a four-person sales department across Central and Eastern Siberia. - Delivered presentations on the Training Center's services to clients. - Achieved the top position among 12 Russian regions in 2017 for fulfilling the sales plan.

- Promoted CAD and BIM software solutions. - Delivered product presentations to CEOs, CTOs, and engineering teams. - Trained sales managers to enhance product knowledge and boost sales effectiveness.

- Led a seven-person sales department in Krasnoyarsk. - Boosted the department's performance, doubling results in the first year and increasing them by 25% in the second. - Maintained communication with key clients, including CIOs and IT Directors. - Enhanced the sales skills of the team through focused training. - Accompanied key customers on international trips to company seminars in Turkey, China, the UAE, and other locations.

- Consistently met and exceeded annual sales targets. - Achieved the top ranking as the #1 sales manager in December 2008, outperforming hundreds of peers across 17 countries. - Secured the #1 sales manager position in 2010 among 16 colleagues in Krasnoyarsk.

Achieved 221.5 points out of 240 on the Telc exam, demonstrating high-level proficiency

Official German Recognition: Degree formally recognized as equivalent to a German Master’s degree by the Berlin Senate Department for Science, Health, and Care (Senatsverwaltung für Wissenschaft, Gesundheit und Pflege). Academic Honors: Graduated with Distinction (Diploma with Honors) for both Bac