Senior Data Scientist – legal and tax industry

Join Sii and help develop highly specialized software and AI tools for legal, tax, accounting, trading, and compliance professionals, in partnership with the world's largest information service.

As a Senior Data Scientist, you will be part of a global interdisciplinary team of experts driving the company's digital transformation. We are looking for a flexible individual to participate in the design and implementation of a tool that streamlines the work of legal and tax professionals.

Your tasks

• Designing and enhancing a custom text analysis engine, as well as workflows
• Using Large Language Models for mass text processing
• Leading the end-to-end model development cycle, ensuring best practices for repeatable testing and well-managed software delivery
• Improving a Python, RAG, and cloud-based backend
• Collaborating in a team-oriented environment, sharing information, and partnering with cross-functional and remote teams
• Maintaining and producing project documentation
• Designing valid experiments, providing answers to empirical questions

Requirements

• At least 5 years of experience working on information retrieval or summarizing large amounts of text
• Expertise in LLM area, building and training models
• Proficiency in Python: reviewing code, writing unit tests, and learning a large code base
• Comfort with remote development in AWS, Azure or GCP
• Exceptional analytical skills and focus on results
• Fluency in English
• Openness to project working hours that partially overlap with US business hours
• Fluent Polish required
• Residing in Poland required