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Zuletzt aktualisiert: vor 2 Tagen
Freelance Data Science Engineer (Python & SQL)

Freelance Data Science Engineer (Python & SQL)

MindriftCologne, NRW, DE
Homeoffice
Quick Apply
This opportunity is only for candidates currently residing in the specified country.Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of En...Mehr anzeigenZuletzt aktualisiert: vor 4 Tagen
Cloud Data Engineer

Cloud Data Engineer

Third RepublicCologne, North Rhine-Westphalia, Germany
We are looking to hire an experienced and talented Cloud Data Engineer for a leading car rental company.The company has international footprints and you will get a chance to work in a cross-cultura...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Junior Data Engineer (m / w / d)

Junior Data Engineer (m / w / d)

taod Consulting GmbHCologne, North Rhine-Westphalia, Germany
Quick Apply
Weil du moderne Datenplattformen in der Cloud entwickeln willst.Mit unserer Leidenschaft für Data Analytics und AI helfen wir innovativen Unternehmen, den Wert ihrer Daten nutzbar zu machen.Dazu ge...Mehr anzeigenZuletzt aktualisiert: vor 16 Tagen
Data Engineer

Data Engineer

AvengaKöln, Nordrhein-Westfalen, .DE
Quick Apply
At Avenga, we believe that human creativity empowers technology that matters.Operating globally, our 6000+ specialists provide a full spectrum of services, including business and tech advisory, ent...Mehr anzeigenZuletzt aktualisiert: vor 11 Tagen
Data Engineer

Data Engineer

affinis AGKöln, Deutschland
Du entwickelst und betreibst skalierbare Dateninfrastrukturen.Azure Data Lake, Azure Storage, Azure SQL, Azure Synapse, Data Factory). Du konzipierst und implementierst ETL- / ELT-Pipelines.Verarbeitu...Mehr anzeigenZuletzt aktualisiert: vor 7 Tagen
Data Engineer (m / f / d)

Data Engineer (m / f / d)

Redcare PharmacyKöln, DE
Redcare Pharmacy is powered by passionate teams and cutting-edge innovation.We strive to create a healthy collaborative work environment where every employee feels valued and inspired to contribute...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Staff Data Engineer (all genders)

Staff Data Engineer (all genders)

Eurowings Digital GmbHCologne
As Staff Data Engineer (all genders), you will shape and scale our cloud data platform and its reference architecture.Design and evolve scalable data products architectures that support analytics, ...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Senior Data & AI Engineer (m / w / d)

Senior Data & AI Engineer (m / w / d)

alphacodersCologne, North Rhine-Westphalia, Germany
Quick Apply
In exklusiver Zusammenarbeit mit unserem Partner, einem führenden Unternehmen im Bereich datengetriebener und KI-basierter Lösungen mit Fokus auf Azure- und Databricks-Technologien, suchen wir Dich...Mehr anzeigenZuletzt aktualisiert: vor 4 Tagen
Data Platform Engineer - Azure (w / m / d)

Data Platform Engineer - Azure (w / m / d)

enua Pharma GmbHCologne, North Rhine-Westphalia, Germany
Quick Apply
Bist du bereit, die deutsche Cannabis-Geschichte mitzuschreiben?.Hersteller für medizinisches Cannabis und gehört in Deutschland zu den führenden Anbietern in diesem Markt.Wir sind ein Team von 50 ...Mehr anzeigenZuletzt aktualisiert: vor 18 Tagen
  • Gesponsert
SAP Data Engineer (m / w / d) - datasolut GmbH

SAP Data Engineer (m / w / d) - datasolut GmbH

datasolut GmbHCologne, Germany
Die datasolut GmbH ist eine Boutique-Beratung für Künstliche Intelligenz aus Köln, die Unternehmen dabei hilft, den Mehrwert ihrer Daten durch Machine Learning und KI-Lösungen für Marketing, Vertri...Mehr anzeigenZuletzt aktualisiert: vor 15 Tagen
Data Platform Engineer

Data Platform Engineer

CirconomitCologne, NRW, DE
Quick Apply
At Circonomit, we follow the mission to build the strategic twin of organizations.By transforming operational data into clear impact models, we revolutionize how resources are managed.As a Data Pla...Mehr anzeigenZuletzt aktualisiert: vor 16 Tagen
Senior Data Engineer (w / m / d)

Senior Data Engineer (w / m / d)

TIMETOACT GROUP GmbHKöln, DE
Begleite unsere Kunden in das Cloud-Zeitalter!.Erfolg unserer Kunden bei durch fundamentale Transformation.Neben deinem ausgeprägten Wissen im Bereich der Datenverarbeitung verstehst du - genau wie...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
SENIOR DATA ENGINEER

SENIOR DATA ENGINEER

Cluster ReplyKöln
In deiner Funktion als Data Engineer berätst du die Fachabteilungen und Stakeholder im Hinblick auf die.Zu deinen Hauptaufgaben gehören das. Extrahieren, das Transformieren und das Analysieren von D...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Data Architect / Data Engineer (d / m / w)

Data Architect / Data Engineer (d / m / w)

DEVKKöln
Du entwickelst mit uns Strategie und Architektur zum Umgang mit Daten weiter.Du entwickelst neue Ideen unter Berücksichtung der technischen Möglichkeiten. Du stellst unseren internen Kunden aussagek...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
Data Engineer (all genders)

Data Engineer (all genders)

adesso SEAgrippinawerft 26, Köln, Deutschland
Du implementierst Data Pipelines, Data Ingest und Data Processing.Analytics Plattformen entwickeln : .Du entwickelst Container-basierte Analytics Plattformen und effiziente CI / CD Pipelines.Business-A...Mehr anzeigenZuletzt aktualisiert: vor über 30 Tagen
  • Gesponsert
Snowflake Senior Data Engineer (m / w / d)

Snowflake Senior Data Engineer (m / w / d)

INFOMOTION GmbHKöln, de
Snowflake Senior Data Engineer (m / w / d).Erfolg beginnt dort, wo Erfahrung auf Exzellenz trifft.Wir sind die AI & Data Performance Company – mit über 750 Datenenthusiastinnen und -enthusiasten in Deu...Mehr anzeigenZuletzt aktualisiert: vor 2 Tagen
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Freelance Data Science Engineer (Python & SQL)

Freelance Data Science Engineer (Python & SQL)

MindriftCologne, NRW, DE
Vor 4 Tagen
Anstellungsart
  • Homeoffice
  • Quick Apply
Stellenbeschreibung

This opportunity is only for candidates currently residing in the specified country. Your location may affect eligibility and rates. Please submit your resume in English and indicate your level of English proficiency.

At  Mindrift , innovation meets opportunity. We believe in using the power of collective intelligence to ethically shape the future of AI.

What we do

The Mindrift platform connects specialists with AI projects from major tech innovators. Our mission is to unlock the potential of Generative AI by tapping into real-world expertise from across the globe.

About the Role

GenAI models are improving very quickly, and one of our goals is to make them capable of addressing specialized questions and achieving complex reasoning skills. If you join the platform as a Data Science AI Trainer, you’ll have the opportunity to collaborate on these projects.

Although every project is unique, you might typically :

  • Design original computational data science problems that simulate real-world analytical workflows across industries (telecom, finance, government, e-commerce, healthcare).
  • Create problems requiring Python programming to solve (using pandas, numpy, scipy, sklearn, statsmodels, matplotlib, seaborn).
  • Ensure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days / weeks).
  • Develop problems requiring non-trivial reasoning chains in data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction.
  • Create deterministic problems with reproducible answers : avoid stochastic elements or require fixed random seeds for exact reproducibility.
  • Base problems on real business challenges : customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency.
  • Design end-to-end problems spanning the complete data science pipeline (data ingestion → cleaning → EDA → modeling → validation → deployment considerations).
  • Incorporate big data processing scenarios requiring scalable computational approaches.
  • Verify solutions using Python with standard data science libraries and statistical methods.
  • Document problem statements clearly with realistic business contexts and provide verified correct answers.

How to get started

Simply apply to this post, qualify, and get the chance to contribute to projects aligned with your skills, on your own schedule. From creating training prompts to refining model responses, you’ll help shape the future of AI while ensuring technology benefits everyone.

Requirements

  • You hold a Master’s or PhD Degree in Data Science, Statistics, Mathematics, Computer Science, or related quantitative field.
  • You have at least 5 years of hands-on data science experience with proven business impact.
  • You have portfolio of completed projects and publications showcasing real-world problem-solving.
  • You are proficient in python programming for data science (pandas, numpy, scipy, scikit-learn, statsmodels).
  • You are an expert in statistical analysis and machine learning with deep understanding of algorithms, methods, and their practical applications.
  • You are proficient in SQL and database operations for data manipulation and analysis.
  • You have experience with GenAI technologies (LLMs, RAG, prompt engineering, vector databases).
  • You have good understanding of MLOps practices and model deployment workflows.
  • You possess knowledge of modern frameworks (TensorFlow, PyTorch, LangChain).
  • Your level of English is advanced (C1) or above.
  • You are ready to learn new methods, able to switch between tasks and topics quickly and sometimes work with challenging, complex guidelines.
  • Our freelance role is fully remote so, you just need a laptop, internet connection, time available and enthusiasm to take on a challenge.
  • Benefits

    Why this freelance opportunity might be a great fit for you?

  • Get paid for your expertise, with rates that can go up to $58 / hour  depending on your skills, experience, and project needs.
  • Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments.
  • Work on advanced AI projects and gain valuable experience that enhances your portfolio.
  • Influence how future AI models understand and communicate in your field of expertise.