Data Scientist, Tools and Workflows @ Bolt
14 hours ago
You have 3+ years of experience in Data Science and Machine Learning, ideally in a product or operational setting at a technology company. You are fluent in Python (e.g., Pandas, NumPy, scikit-learn) and proficient in SQL, capable of working with large-scale data and complex workflows. Hands-on experience in NLP – text classification, embeddings, transformers, chatbot development, with Large Language Models (LLMs), or experience in Forecasting and Time Series Modeling. You have a proactive mindset, a willingness to take initiative and work with little supervision, and enthusiasm for collaborating with different roles in product, analytics, and engineering to identify problems, explore trends, and discover growth opportunities. You communicate effectively in English and can clearly articulate data-driven insights to both technical and non-technical collaborators. You’ve built and deployed production ML systems, including model monitoring, scaling, and impact evaluation. Tools & Workflows (T&W) team is responsible for optimising different workflows in Bolt. The data science projects inside the T&W team span from developing models to be able to classify users’ issues and intents, building tooling to improve support agent efficiency and effectiveness, and creating intelligent chatbots capable of providing instant, automated resolutions to customer issues. ,[Collaborate with cross-functional teams (Data Analysts, Engineers, Product Managers, Operations, etc.) to deeply understand business challenges and deliver impactful data science solutions., Solving real-world problems by building applications using deep learning, gradient-boosted trees, Large Language Models (LLMs), time series modelling, and other advanced techniques., Handling the entire lifecycle from exploratory queries and notebook prototypes to a working machine learning model or other automation that might be serving thousands of calls per second in production., Work across a modern data stack including Python, SQL, Spark, Presto, Docker, SageMaker, and Airflow, plus internal tooling for ML training and inference., Validate and optimize solutions using Bolt’s in-house AB testing platform, ensuring measurable impact at scale., Contribute to the broader data science community at Bolt through peer review, shared tooling, and open knowledge exchange.] Requirements: Python, SQL, pandas, NumPy, scikit-learn Additionally: Sport subscription, Private healthcare, Small teams, Free coffee, Bike parking, Shower, Free snacks, Free beverages, Playroom, In-house hack days, In-house trainings, Modern office, Startup atmosphere, No dress code, Free breakfast.
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Data Engineer @ Bolt
14 hours ago
Warszawa, Czech Republic Bolt Full timeYou have 3–4 years of experience as a software or data engineer, and have hands-on experience building and deploying data pipelines or analytics workloads in cloud environments. You’re proficient in Python and SQL, developing production-ready code for internal libraries, data pipelines, and automation. You have excellent communication skills, are fluent...
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Associate Data Scientist @ Bayer
6 days ago
Warszawa, Czech Republic Bayer Full timeDegree in Computer Science, Machine Learning, Statistics, Mathematics, Quantitative Finance/Economics/Marketing, or a related discipline. 2 years of experience in data-related roles with BSc degree, or 1 year of experience with MSc degree. Practical experience in at least one, preferably two, of the following areas: machine learning, generative AI,...
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Data Scientist @ Bayer
6 days ago
Warszawa, Czech Republic Bayer Full timeMSc in Computer Science, Machine Learning, Statistics, Mathematics, Quantitative Finance/Economics/Marketing, or a related discipline. 3+ years of experience in data-related roles. Reach practical experience in at least one, preferably two, of the following areas: machine learning, generative AI, forecasting, or mathematical optimization. Proficiency in...
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Senior Data Scientist @ Bayer
6 days ago
Warszawa, Czech Republic Bayer Full timeMSc in Computer Science, Machine Learning, Statistics, Mathematics, Quantitative Finance/Economics/Marketing, or a related discipline. 5+ years of experience in data-related roles. Practical experience in at least one, preferably two, of the following areas: machine learning, generative AI, forecasting, or mathematical optimization. Proficiency in Python and...
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Data Scientist @ ITDS
14 hours ago
Warszawa, Czech Republic ITDS Full timeYou’re ideal for the role if you have: Minimum 4 years of experience on a similar position Strong statistical and quantitative analysis skills Strong Machine Learning and Deep Learning skills (RNNs, LSTMs, Transformers) & skills in data cleaning, normalization, and transformation, specifically for textual data Strong experience in NLP and fine knowledge...
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Data Scientist
2 days ago
Remote, Warszawa, Gdańsk, Wrocław, Białystok, Kraków, Czech Republic Addepto Full time🎯 What you’ll need to succeed in this role: At least 3+ years of proven commercial experience designing and implementing scalable AI solutions (Machine Learning, Predictive Modeling, Optimization, NLP, Computer Vision, GenAI). Proficiency in developing ML algorithms from scratch to production deployment. Strong programming skills in Python: writing...
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Analityk Data Scientist
6 days ago
Warszawa, Czech Republic RITS Center Full time✅ Wymagania (Must Have): Bardzo dobra znajomość zagadnień z zakresu uczenia maszynowego SQL Python i biblioteki: numpy, scipy, pandas, matplotlib, oraz ML-owe (np. scikit-learn, XGBoost, itp.) ✅ Mile widziane (Nice to Have): Znajomość Java lub Scala Doświadczenie z Hadoop i Apache Spark Podstawowa znajomość DevOps / Linux administration RITS...
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Junior Data Analyst/Master Data @ Bayer
1 week ago
Warszawa, Czech Republic Bayer Full timeMaster’s degree in Statistics, Computer Science, Data Management, Data Science or a related field or Bachelor’s degree with 1+ years of professional experience. Some experience as a Data Analyst or Data Steward, preferably within the consumer-packaged goods, FMCG, pharmaceutical or healthcare industry is a plus. Basic knowledge of data management...
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Junior Data Analyst/Consumer Data @ Bayer
1 week ago
Warszawa, Czech Republic Bayer Full timeMaster’s degree in Statistics, Computer Science, Data Management, Data Science or a related field or Bachelor’s degree with 1+ years of professional experience. Some experience as a Data Analyst or Data Steward, preferably within the consumer-packaged goods, FMCG, pharmaceutical or healthcare industry is a plus. Basic knowledge of data management...
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Data Analyst/Consumer Data @ Bayer
1 week ago
Warszawa, Czech Republic Bayer Full timeMaster's degree in Statistics, Computer Science, Data Management, Data Science or a related field. 3+ years of experience as a Data Analyst or Data Steward, preferably within the consumer-packaged goods, FMCG, pharmaceutical or healthcare industry. Basic knowledge of data management principles, data quality frameworks, and metadata management practices and...
