Every business operates according to it's own rules. We understand that - that's why we look for unique solutions for your company.
We are a software house with a 18-year history, a rich portfolio and projects all over the world. We have built our brand on professionalism and flexibility in delivering software solutions. We are not afraid of unconventional ideas and value innovation and imaginative change.
What is our focus? Software solutions that meet the challenges of businesses. Production systems, transport, e-commerce: anything that improves productivity – on any platform. Our core competences are in Industry 4.0, integrations, migrating legacy systems and custom software development.

SKM Group

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Senior Data Scientist

We’re looking for a Senior Data Scientist (LLMs & Applied AI) to design and deliver production-grade AI solutions, with a focus on fine-tuning and deploying Large Language Models on proprietary data.

You’ll work at the intersection of machine learning, data engineering, and real-world product delivery, turning advanced models into scalable, business-ready systems.

Tech Stack

Core: Python, PyTorch / TensorFlow, Hugging Face

AI/ML: LLM fine-tuning, RAG

Data: Pandas, NumPy

Infra (varies by project): Cloud, APIs, MLOps tooling

What You’ll Do

Prepare, clean, and structure proprietary datasets for training and evaluationFine-tune and optimize LLMs using techniques such as LoRA / QLoRADesign evaluation frameworks to measure model performance and business impactBuild and deploy inference pipelines for production useWork closely with stakeholders to translate business problems into ML solutionsImprove model performance through experimentation, iteration, and data-centric approachesContribute to architecture decisions around scalable AI systems

What We’re Looking For

5+ years of experience in Data Science / Machine Learning rolesStrong background in ML, NLP, and applied statisticsHands-on experience with Python and ML frameworks (PyTorch or TensorFlow)Experience working with LLMs (fine-tuning, prompting, or RAG-based systems)Solid understanding of model evaluation, experimentation, and performance trade-offsExperience deploying models into production environments

Nice to Have

Experience with MLOps (CI/CD for ML, monitoring, retraining pipelines)Familiarity with RAG architectures or vector databasesExperience working with cloud platforms (AWS / Azure / GCP)Background in handling large-scale or proprietary datasets

What do we offer you?

Attractive salaryLarge freedom and real influenceNo unhealthy competition, team approach to meeting challengesRemote-first, flexible working cultureCompany apartments in cool cities across Europe: work and enjoy a memorable getaway

About Us

We are a software house with 18 years of experience and a global portfolio of projects. We help businesses modernize, scale, and innovate through custom software solutions. Our team embraces unconventional ideas and new technologies, delivering solutions with real impact. If you value professionalism, creativity, and a strong engineering culture, you'll feel at home here.

join our team: Apply Now!

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Senior Data Scientist

Kraków, Office or Remote

4,300€ - 10,000€ / month (B2B)zzz

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SENIOR DATA SCIENTIST

What the job involves