Natural language processing expert

We are looking for an AI/NLP expert with a passion for PyTorch and Transformer models. If you love complex challenges like text data classification and want to deploy your models into production, then read on!

General Information:

• Start date: ASAP
• latest Start Date: 01/11/2025
• End date: 31/12/2025 
• Extension: to be discussed, depending on new project pipeline
• Workload: 50-100%
• Home Office: possible
• Travel: No travel intended
• Working hours: Standard

Tasks & Responsibilities:

• Review and optimize a transformer architecture and training pipeline
• Implement and experiment with advanced techniques to improve performance on fields with severe class imbalance
• Conduct in-depth error analysis to identify patterns in misclassifications and propose data-driven improvements
• Refine and validate the data processing, label mapping, and stratified data splitting procedures to ensure maximum reliability
• Collaborate with our software architect to integrate the final, optimized model into a production-ready API for inference
• Document the final model architecture, training procedures, performance benchmarks, and best practices for future development

Must Haves:

• Educational background: advanced degree in AI/NLP or related field
• Min. 3 years hands-on experience fine-tuning Transformer models 
• Demonstrable experience with multi-task and multi-label classification problems, expertise in handling severe class imbalance in text data
• Proficiency in deploying machine learning models as REST APIs 
• Strong proficiency in PyTorch, including creating custom model architectures (e.g., multi-head classifiers) and custom loss functions 
• Strong software engineering fundamentals and the ability to write clean, modular, and well-documented Python code, experience with Docker
• Professional proficiency in English
• Strong analytical and problem-solving skills, and collaboration abilities

We thank you for your application!