Praca dla freelance data science engineer python sql w Warszawa

CloudFerro is a provider of cloud data processing services . It provides and supports cloud computing for specialized markets, including the European space industry, climate research and science.It has extensive experience in storing and processing large data sets, including multi-petabyte Earth observation satellite data repositories. CloudFerro solutions...

Data Scientist The Data Science team helps us fulfill our mission by informing strategy, defining success metrics, and identifying new ways to deliver user value. Data scientists are at the crux of deepening our understanding of the customers and driving more business outcomes by leveraging experimentation, causal inference, statistical and machine learning...

Description Start.io is a sell-side omnichannel advertising platform powered by real-time mobile audiences. We deliver hundreds of millions of ads per day across thousands of global leading apps and websites. Our platform uses AI to deliver more efficient, effective and precise digital advertising campaigns. Our direct integration with thousands of mobile...

C&F is a technology services company providing innovative solutions in Data Management, Big Data, Advanced Analytics and Compliance. With a highly integrated team of 400+ experts, for over 20 years C&F has been delivering superior engineering and premium operations to Fortune 500 companies, primarily in the Life Science industry. We are looking for an...

At Capgemini Invent, we believe difference drives change. As inventive transformation consultants, we blend our strategic, creative and scientific capabilities, collaborating closely with clients to deliver cutting‑edge solutions. Join us to drive transformation tailored to our client's challenges of today and tomorrow. Informed and validated by science...

Nasze wymagania:fluency in English (C1)5+ years of experience combining actuarial pricing and advanced data science in P&C insuranceproven ability to lead cross‑entity analytics projects and deliver measurable portfolio improvementexpertise in Python, R, SQL, and ML/DL frameworks such as TensorFlow and PyTorchstrong statistical modelling, feature...

Cognism is the leading provider of European B2B data and sales intelligence. Ambitious businesses of every size use our platform to discover, connect, and engage with qualified decision-makers faster and close more deals. Headquartered in London with global offices, Cognism’s contact data and contextual signals are trusted by thousands of revenue teams to...

Samba TV tracks streaming and broadcast video across the world with our proprietary data and technology. We are on a mission to fundamentally transform the viewing experience for everyone. Our data enables media companies to connect with audiences for new shows and movies, and enables advertisers to engage viewers and measure reach across all their devices....

Minimum qualifications:Bachelor’s degree in Science, Technology, Engineering, Mathematics, or equivalent practical experience.6 years of experience coding in a general purpose coding language or in system design.6 years of experience troubleshooting and advocating for customers' needs, and triaging technical issues.6 years of experience with two or more of...

We are seeking a Principal Data Scientist (Polish Native) to lead data analysis, red-teaming, and LLM evaluation initiatives for a cutting-edge voice fraud prevention platform deployed across millions of mobile devices globally. In this role, you will leverage advanced prompt engineering, GenAI capabilities, and agentic workflows to analyze conversation...

About Planet Planet is a global provider of integrated technology and payments solutions for retail and hospitality customers. We create great experiences for the millions of people who use our payments, software, and tax-free solutions every minute of every day. Planet empowers its customers to deliver great customer experiences by combining payments and...

We are seeking a Senior Data Analyst to join an impactful engineering initiative delivering high-value data solutions for a global leader in digital payments and financial technology. In this role, you will play a pivotal part within a dedicated Grid Dynamics squad (working alongside Senior Java Engineers and a Data Engineer) while collaborating closely with...

Role Overview We're looking for a Data Analyst to own and elevate marketing analytics across Performance Marketing. The Marketing team at Leaply is highly data-driven and focused on developing at-scale, measurable marketing programs designed to improve the lifetime value of Leaply customers. This is a high-impact individual contributor role for someone who...

Are you a Principal Engineer or Architect who excels at translating complex client goals into robust, production-ready lakehouse architectures? Excited to bridge the gap between deep technical execution (Spark, Python, DataOps) and executive-level consulting across multi-cloud environments? So please, take a few minutes and read about your potential new job....

PwC Polska’s Digital&IPA team is seeking a Senior BI Developer (freelance) to design and build analytics solutions for clients across industries. You will transform business problems into actionable insights and craft compelling visualizations that drive real-time and strategic decisions.You will collaborate with product design, BI and data science...

Respect Energy Fuels to dynamicznie rozwijająca się, w 100% polska i niezależna spółka specjalizująca się w obrocie paliwami gazowymi w Polsce i za granicą. Dostarczamy skroplony gaz ziemny LNG oraz gaz ziemny sieciowy, obsługując zarówno rynek hurtowy, jak i detaliczny.Naszym atutem jest zespół doświadczonych ekspertów branżowych oraz...

CloudFerro is a provider of cloud data processing services . It provides and supports cloud computing for specialized markets, including the European space industry, climate research and science.It has extensive experience in storing and processing large data sets, including multi-petabyte Earth observation satellite data repositories. CloudFerro solutions...

METTLER TOLEDO is a global leader in precision instruments and services. We are renowned for innovation and quality across laboratory, process analytics, industrial, product inspection, and retailing applications. Our sales and service network is one of the most extensive in the industry. Our products are sold in more than 140 countries, and we have a direct...

Job DescriptionAt U.S. Bank, we’re on a journey to do our best. Helping the customers and businesses we serve to make better and smarter financial decisions, enabling the communities we support to grow and succeed in the right ways, all more confidently and more often—that’s what we call the courage to thrive. We believe it takes all of us to bring our...

Job Description You will take a senior role within our Transformation Team, driving the design and delivery of sophisticated automation and analytics solutions across the Treasury & Execution Middle Office. As Python Full Stack Developer (Treasury Transformation) Senior associate/ Vice President within the Treasury and Execution Middle Office team you will...