freelance data science engineer python sql

Senior Backend Python Engineer Help develop the definitive video game sales intelligence platform.Empower game developers to run smarter studios. Full-time · Remote (or in Łódź, Poland) · 20k-26k PLN/month B2B or equivalent under another type contract/currency · Employee Stock Option Plan Apply now! (or keep scrolling for more info) What's...

Nasze wymagania:4+ years of experience in Data Engineering, with strong hands-on expertise in Python, Spark, and Databricks.Strong knowledge of SQL and practical experience using PySpark to process and transform large-scale datasets.Proven experience in designing, building, and maintaining data pipelines, ETL/ELT workflows, and data integration...

Since the year 2000, OEC has grown globally to more than 1,000 employees with a double-digit revenue increase nearly every year. We provide a lively culture, employee rewards and recognition, and the opportunity to develop and implement innovative technology solutions. About The Role We’re looking for a Senior Data Platform Engineer to join the team...

Since the year 2000, OEC has grown globally to more than 1,000 employees with a double-digit revenue increase nearly every year. We provide a lively culture, employee rewards and recognition, and the opportunity to develop and implement innovative technology solutions. About The Role We’re looking for a Senior Data Platform Engineer to join the team...

Dla klienta z branży ubezpieczeniowej poszukujemy kandydata na stanowisko Data Engineer / Senior Data Engineer Microsoft Fabric Twoje zadania: Projektowanie i implementacja pipeline’ów w Data Factory oraz notebooków PySpark w Fabric. Onboarding źródeł plikowych i bazodanowych wraz z walidacją techniczną i standaryzacją formatu. Transformacje,...

Job purposeThe purpose of the Data Engineer is to migrate and convert data from foreign data models into our proprietary 3-GIS data model. In addition to data conversion, the data engineer supports existing 3-GIS accounts with data changes for system corrections and upgrade requirements.Duties and responsibilitiesReasonable accommodations may be made to...

Contracting period:Long term project(1 year) Location: Hybrid (Poland) About the Role We are looking for an experienced Senior (Big) Data Engineer to join large-scale data platform initiatives for an international technology-driven organization. The company builds and operates high-volume, low-latency data platforms, processing large amounts of event data...

We are seeking a (Senior) Data Engineer position based in our Poznań location to join the Data Science & Engineering team. Ready to help build a better future for generations to come? In an ever-changing world, we owe it to ourselves and our future generations to live life responsibly. At ROCKWOOL, we work with dedication to enrich modern living through our...

Forma współpracy: kontrakt B2B Stawka (B2B PLN netto + VAT/h): 125-160   Tryb: hybrydowy (uzgodnione spotkania projektowe 1 dzień w tygodniu w Warszawie)   Poszukujemy osoby o profilu Data Engineer / Senior Data Engineer Microsoft Fabric, która posiada min. 3 lat komercyjnego doświadczenia.   Wiodący stack technologiczny: Microsoft Fabric, Azure...

RevenueBase: We're building the data infrastructure that makes AI agents trustworthy instead of error-prone. We provide continuously refreshed, verified B2B data for autonomous AI agents and GTM workflows. We've tripled growth while maintaining 100% gross dollar retention and staying cashflow positive. We power AI agents for Clay, Zoominfo, Dun &...

We are looking for a Senior Data Engineer with a Platform focus to take a leading role in the architecture and evolution of our internal Data Platform. You'll operate as a domain expert — designing scalable open-source platform infrastructure, defining standards adopted across the team, and mentoring engineers around you. This is a senior individual...

Company Description Inetum Polska is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding...

Job TitleData EngineerJob DescriptionCompensation details will be shared by the recruiter during the first interview.So, who are we?IG Group is a FTSE 100 fintech operating across five continents, serving over 1.3m customers and handling billions of dollars in transactions – built on scale, trust, and proof.We didn’t pivot to innovation; it’s how...

DescriptionMindrift is looking for highly skilled Web Scraping specialists to join the Tendem project (https://tendem.ai/) and drive specialized data scraping workflows for real-world use cases. Mindrift is looking for highly skilled Python Data Scraping Engineers to join the Tendem project and drive specialized data scraping workflows for real-world...

GenLogs is a transportation-technology company building the next generation of truck intelligence. Through a nationwide network of sensors and proprietary data, we deliver real-time, high-fidelity insights into freight movement for commercial supply‑chain customers and public‑sector agencies. Our mission is to strengthen America’s logistics backbone,...

Silky Coders to spółka należąca do Grupy LPP, licząca ponad 800 osób i realizująca autorskie projekty technologiczne z zakresu IT, data science oraz e-commerce – przede wszystkim na rzecz wzmacniania pozycji LPP jako lidera fashion tech. Zespół Silky Coders odpowiada za systemy i infrastrukturę informatyczną, m.in. w procesach zarządzania...

Quantitative Software Engineer Warsaw, hybrid. Join a team building a research-to-trading platform used to design, test, and deploy quantitative investment strategies. This is a hands-on engineering role focused on high-performance analytics, market data, and production trading infrastructure. Responsibilities Develop and maintain C++ and Python applications...

In the GTM analytics COE our mission is to deliver impact by building machine learning products to optimize pricing and marketing investments and provide guidance to our sales organization. As a Big Data Engineer, you will be in a unique position to support the development one of our internal assets. You will work together with the project and asset team to...

Company DescriptionInetum Polska is part of the global Inetum Group and plays a key role in driving the digital transformation of businesses and public institutions. Operating in cities such as Warsaw, Poznan, Katowice, Lublin, Rzeszow the company offers a wide range of IT services. Inetum Polska actively supports employee development by fully funding...

Position Summary:We are looking for a talented Senior Python Engineer to join our Platform & Developer Experience team. This is a fully remote role, and we welcome applications from anywhere in Europe. As part of our Build squad, you will play a critical role in shaping the foundations of developer experience, scalability, and performance of the Crystal...