Mid Data Scientist (f/m/x)

Sii Poland; Katowice; On-site; PLN 120,000 - 190,000; Full time

Benefits offered by this job

Centre of internal trainings

Profit sharing

Medical care

Great Place to Work

Open and accessible management team

Job summary

Sii Poland is seeking a Data Scientist to join the Data Science team developing AI-based solutions for the global retail and restaurant industry. You will work on Generative AI, Computer Vision, and Machine Learning, creating applications that utilize LLM and VLM models in real operational environments.

You will design, develop, and maintain AI-based solutions, optimize ML pipelines, validate results, and collaborate with data scientists and engineers on MLOps and production support.

Qualifications

• 2–5 years of commercial experience in Data Science or ML.
• Hands-on ML model development experience.
• Proficient with Pandas and NumPy.
• Polish language fluency and English at a communicative level.
• Based in 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

Python

Team collaboration

Polish language

English communication

Tools

Pandas

NumPy

Snowflake

GenAI / LLM basics

Computer Vision basics

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