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Junior Data Scientist

The person in this role will work with project teams developing modern data platforms in cloud environments for global brands. They will work in an international environment, grow their expertise in Data & AI solutions, learn the latest technologies in this area and support the principles of the DataOps manifesto. 

place Warsaw Hybrid/Onsite
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Responsibilities

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    Working closely with clients across industries - from analyzing problems and identifying areas for improvement to supporting the design and presentation of advanced analytics and machine learning solutions

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    Building, evaluating and deploying machine learning models - from classical statistical approaches to LLM-powered applications

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    Designing and implementing GenAI solutions including RAG pipelines, agentic workflows and LLM-based automation

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    Contributing to MLOps practices - model versioning, experiment tracking, CI/CD for ML, monitoring and observability in production

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    Participating in the full project lifecycle: from business and data analysis, through prototyping and development to production deployment and result validation

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Requirements

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    Minimum 1 year of experience in Data Science / ML Engineering (internships, commercial projects, or strong open-source/research contributions)  

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    Strong programming skills in Python

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    Solid understanding of fundamental statistical and ML models

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    Hands-on experience with at least some of LLMs, prompting techniques, RAG architectures, fine-tuning, evaluation & guardrails, agentic frameworks (e.g. LangGraph)

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    Knowledge of ML libraries (e.g., PyTorch, Tensorflow)

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    Ability to analyze problems and synthesize solutions

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    Basic knowledge of selected ML solution lifecycle management platforms (e.g. MLflow, Azure ML, Amazon SageMaker)

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    Knowledge of SQL, comfortable querying and transforming data in relational databases 

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    Ability to write clear, structured code following good programming practices  

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    Familiarity with git repositories and tools such as JIRA, Confluence, Teams

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    Very good knowledge of English (B2+) enabling work in an international environment 

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We offer

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    Global projects in clouds - we work with clients from all over the world based on modern cloud technologies 

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    Certification reimbursement - develop your skills and obtain certifications such as Microsoft, Amazon Web Services, Databricks, and ISTQB. We cover the cost of exams

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    Time to learn - take advantage of 60 paid hours per year for learning and use the Buddy Program, which supports you during your first months on the job

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    Flexible approach - connect studies with your career. Adjust your schedule to your needs thanks to flexible working hours

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    Personalized benefits - medical care, subsidized sports packages, language tuition, new employee referral bonus (up to PLN 15,000) as well as annual and media bonus

If you are interested in the offer, send your CV

Apply
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Alicja Nastałek

HR Specialist

alicja.nastalek@bitpeak.com

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I believe in building meaningful relationships grounded in kindness and honesty. People are always at the center of my work, and I see mutual respect and transparency as essential foundations for effective collaboration. I look for candidates who share these values - those who are open to a true partnership and ready to embrace new challenges.

Still have questions? Write to us!
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Bartosz Nazaruk

Head of Delivery

bartosz.nazaruk@bitpeak.com

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At BitPeak, we value Data Scientists who excel in problem analysis, solution synthesis, and have hands-on experience with statistical and machine learning models. If you think you can bring innovative thinking, proficiency in machine learning and cloud platforms, and a commitment to creating impactful, scalable solutions - join us!

Let's talk about data!