Mid Data Scientist (f/m/x)

Sii Poland; Toruń; On-site; PLN 120,000 - 180,000; Full time

Benefits offered by this job

Great Place to Work

Solid financial situation

Centre of internal trainings

Many experts you can learn from

Open and accessible management team

Profit sharing

Passion Sponsorship program

Regular integration events and trips

Comfortable and well-equipped offices

MySii app

Medical care

Job summary

Sii Poland in Toruń invites you to join our Data Science team, working on AI-based solutions for retail and restaurant industries. You will contribute to Generative AI, Computer Vision, and ML projects using LLM and VLM models to analyze data and images in real-world settings.

You will design, develop, and maintain AI applications, optimize ML pipelines, and ensure reliable production deployments. Strong Polish and good English are required; 2–5 years in DS/ML and residency in Poland are

Qualifications

• Minimum 2-5 years of commercial experience in Data Science or Machine Learning.
• Practical experience working with machine learning models.
• Strong knowledge of Pandas and NumPy libraries.
• Ability to design and develop AI-based solutions.
• Polish language fluency.
• English proficiency at a communicative level.
• Residents of Poland.

Responsibilities

• Designing, developing, and maintaining applications based on LLM and VLM.
• Building and optimizing AI/ML pipelines to improve performance, accuracy, and scalability.
• Implementing, monitoring, and supporting machine learning solutions in production environments.
• Validating model results and ensuring the reliability of AI systems.
• Collaborating with data scientists and engineers on MLOps and continuous improvement initiatives.
• Participating in the development of solutions utilizing Computer Vision and Generative AI for clients in the retail and restaurant sectors.

Skills

Data Science

Machine Learning

Pandas

NumPy

AI

LLM

VLM

MLOps

Polish

English

Tools

Snowflake

Job description

Join the Data Science team developing AI-based solutions for the global retail and restaurant industry. You will work on projects in the areas of Generative AI, Computer Vision, and Machine Learning, creating and developing applications that utilize LLM and VLM models. Together with the team, you will build solutions that support data and image analysis, helping clients make informed business decisions in real operational environments.

Your tasks

• Designing, developing, and maintaining applications based on LLM and VLM
• Building and optimizing AI/ML pipelines to improve performance, accuracy, and scalability
• Implementing, monitoring, and supporting machine learning solutions in production environments
• Validating model results and ensuring the reliability of AI systems
• Collaborating with data scientists and engineers on MLOps and continuous improvement initiatives
• Participating in the development of solutions utilizing Computer Vision and Generative AI for clients in the retail and restaurant sectors

Requirements

• Minimum 2-5 years of commercial experience in Data Science or Machine Learning
• Practical experience working with machine learning models
• Strong knowledge of Pandas and NumPy libraries
• Ability to design and develop AI-based solutions
• Fluent in Polish
• Proficient in English at a communicative level
• Residing in Poland

Nice to have

• Knowledge of Snowflake
• Basic knowledge of GenAI / LLM

Job no. JOB-BXAKJ

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care