Hays IT Contracting is a cooperation based on B2B rules. We connect IT specialists with the most interesting technological projects on the market.
Join the group of 500 satisfied Contractors working for Hays’ clients!

For our Client we are currently looking for Candidates for the position of:

Data Scientist

Location: remote work, with occasional visits in the office in Warsaw
Job type: B2B (with Hays Poland)
Length: long-term cooperation
Rate: 130-150 PLN/h net
Start date: ASAP / 1 month
Working hours: business hours
Team: multinational
Remote work: yes, with occasional visits in the office in Warsaw

What will you do:

• Developing innovative solutions, both internally and for our US clients by leveraging cutting-edge machine learning and Al technologies
• Modelling, developing & validating intelligent assistants using the latest large language models (e.g., GPT-4, Falcon 2, LLAMA 3, Mixtral), employing Retrieval Augmented Generation techniques, and utilizing agent frameworks (e.g., Langraph, CrewAl)
• Utilizing Al expertise to recommend the most effective technical approaches and solution architectures for addressing business challenges
• Communicating complex insights in a clear and actionable manner both to technical and non-technical colleagues and clients
• Collecting, preprocessing and analysing large datasets for training ML models
• Contributing to project documentation

What will you get:

• Competitive salary
• Standard benefits - preferential rates for LuxMed and Multisport packages
• When you choose to work via Hays, you also get the opportunity to work for many of Hays' other leading clients in the future

What we expect from you:

• Minimum 3-5 years of experience as Data Scientist
• Professional experience in building applications using Large Language Models (LLMs) and related concepts & design patterns (e.g. RAG, vector DBs, embeddings, prompt engineering, multi-agent systems)
• Familiarity with LLM frameworks (e.g. Langchain, LLamaindex)
• Proficiency in Python programming
• Core skills in statistics
• Solid knowledge of ML/Al concepts: types of algorithms, machine learning frameworks, model efficiency metrics, model life-cycle, Al architectures
• Experience in training/using transformer-based models for text and/or image data
• Expertise in working with large datasets and perform data cleaning, transformation, and manipulation (e.g. Pandas, NumPy, SQL)
• Graduated in Economics, Econometrics, Quantitative Methods, Computer Science, Maths, Physics, Operational Research or a related discipline
• Knowledge of English on B2/C1 level
• Nice to have: knowledge of frameworks and Python libraries related to GenAl agents (e.g. Langraph, CrewAl, Autogen, Taskweave)

What will the recruitment process look like:

1. Your CV will be verified by Hays Recruiter
2. Recruiter will contact you by phone - a 15-minute conversation about the project and your experience
3. Technical conversation with the client – 2 meetings
4. Offer
5. Welcome to the project!

Hays Poland sp. z o.o. jest agencją zatrudnienia zarejestrowaną w rejestrze prowadzonym przez Marszałka Województwa Mazowieckiego pod numerem 361.