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scikit-learn Experts in Cologne

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Hire experts who turn data into working models with scikit-learn, sklearn pipelines, and clean evaluation workflows. They can support classification, regression, clustering, feature engineering, and model validation, with fast, precise matching to vetted, available freelancers.

Meet FRATCH Experts in Cologne, who have recently used scikit-learn

Verified expert

Maurice Hartwig

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Senior Product Owner

Hürth
Maurice Hartwig

Last position:

Senior Product Owner at Hydra Lynx Ltd

  • Brought together AI initiatives through central coordination and integration of artificial intelligence projects to increase efficiency and business value.
  • Identified and prioritized AI use cases through business process analysis and translated them into structured product backlogs and roadmaps.
  • Led change management activities, including the rollout of new digital tools, communication strategies, and training concepts to support cultural change.
  • Managed requirements and processes through end-to-end requirements analysis, process modeling, and organizational optimization.
  • Scaled agile practices (Scrum, Kanban, OKRs) and promoted cross-functional collaboration and continuous improvement.
  • Supported company-wide digital transformation by leading technical change initiatives and strengthening collaboration models.
Verified expert

Fahad Razzaq

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AI Platform Engineer | MLOps | Kubernetes | Cloud Infrastructure

Bonn
Fahad Razzaq

Last position:

Data Science – Operations Optimization at Netto-marken

Project: Digitalization of Warehouse Processes | Building a Data Analytics Platform.

  • Built a web-based workforce allocation system that digitized daily shift planning by matching worker expertise to operational zones, replacing manual coordination with a structured workflow adopted across the site, saving supervisors time on daily planning.
  • Developed a real-time operational visibility dashboard giving supervisors a live view of task throughput and outstanding workload across warehouse zones throughout the day, helping reduce overtime and idle labour costs.
  • Developed a slotting optimization solution to improve warehouse picking efficiency and reduce picking time per order, working directly with operations teams from concept through production deployment.

Technologies used: Python, Django, PostgreSQL, Pandas, NumPy, HTML, Java, JavaScript, Docker, Kubernetes, AWS, Power BI, GitHub Actions CI/CD, GitOps, Claude, OpenAI

Verified expert

Sophia Wagner

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AI Engineer & Technical Consultant

Cologne
Sophia Wagner

Last position:

AI Engineer & Technical Consultant at Freelance

  • Delivered ML pipelines for OCR, semantic search, and computer vision
  • Integrated Azure AI Agents and GPT workflows for automation and QA
  • Deployed cloud-based FastAPI services with scalable architecture
  • Created integration docs and advised on LLM production readiness
Verified expert

Emmanouil Tzouridis

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Senior Analytics Engineer

Köln
Emmanouil Tzouridis

Last position:

Senior Analytics Engineer at Trade Republic Bank GmbH

  • Implementation of analytics and automation solutions for the Anti Financial Crime business unit
  • Providing the infrastructure, including reusable data models and feature ingestion for production ML and rule based models in the areas of Account Take-Over and Card fraud detection, as well as Customer Risk Assessment
  • Tools used: Snowflake, dbt, Looker, AWS, Python, Airflow, Metaflow
Verified expert

Markus Glagla

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Full Stack Developer

Frechen
Markus Glagla

Last position:

Full Stack Developer at REWE Digital

  • A warehouse valuation system was reimplemented using Java, Spring Boot, and Camunda. The backend solution focuses on integration and batch calculations, the frontend on managing formulas and reviewing results.
  • Java 21
  • Spring Boot
  • JPA
  • Maven
  • REST
  • Kafka
  • PostgreSQL
  • DB2
  • Liquibase
  • Google Cloud Storage
  • Keycloak
  • GitLab CI/CD
  • Helm
  • Terragrunt
  • SonarQube
  • Angular
  • IntelliJ
  • JUnit 5
  • Mockito
  • Open API
Verified expert

Jeanne Yap

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Process Engineering Intern

Cologne
Jeanne Yap

Last position:

Process Engineering Intern at Procter & Gamble

  • Independently initiated and deployed automated validation workflows using Python, cutting manual processing by 58% and improving efficiency
  • Developed a machine learning model for synthetic defect generation, reducing downtime and production costs; deployed locally and via Databricks and Azure AI Factory
  • Utilized a small dataset of image data from the production lines and extended this dataset with training on models like cycleGAN and pix2pix
  • Built and optimized the Linux-based development environment for training 3D models; maintained reproducibility via GitHub
  • Presented technical insights to cross-functional teams (engineers, QA, project managers), ensuring alignment of ML solutions with operational needs
Verified expert

André Filip

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GenAI Product Owner

Cologne
André Filip

Last position:

GenAI Product Owner at OW Media Solutions GmbH

  • Designed and led the development of an automated short-video generation system.
  • Built a scalable AWS backend using Step Functions, Lambda, S3, ECS Fargate, and DynamoDB.
  • Developed video rendering with OpenCV and FFMPEG; ensured maintainable Python code.
  • Supervised and mentored a Python developer and trained the client in AI workflows.
  • Decreased end-to-end production time from hours to minutes.
  • Created a modular, extensible architecture designed to support future AI models.
Verified expert

Filipp Trigub

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Multi-chain LLM copilot for academic teaching and studying

Bonn
Filipp Trigub

Last position:

Multi-chain LLM copilot for academic teaching and studying at Infolab.ai

  • Build a sophisticated AI copilot to augment the students’ learning experience and provide AI-derived insights to professors.
  • Build a multi-chain LLM system adapting to user needs at its own accord with a Weaviate vector DB based RAG system and evaluated it with Ragas.
  • Build responsive react frontend, and backend systems handling auth, data management and auxiliary services as a RESTful API.
  • Deployed and managed the app to the cloud in a production environment including the CICD via multi-stage deployment.
Verified expert

Sabrine Krichen

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Team Lead

Cologne
Sabrine Krichen

Last position:

Team Lead at InstaDeep

  • Led a team of junior Research Engineers, providing mentorship, technical guidance, and career development support to foster their growth in deep learning and machine learning engineering.
Verified expert

Pappu Prasad

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Senior Cloud Consultant (AWS Services and Consulting)

Köln
Pappu Prasad

Last position:

Senior Cloud Consultant (AWS Services and Consulting) at devoteam GmbH

  • Developed automated ETL pipelines with AWS Glue and Athena to ensure consistent data quality and governance requirements
  • Implemented validation, anonymization, and encryption measures for data in compliance with GDPR
  • Optimized cloud costs by introducing FinOps practices and increased transparency for business units
  • Monitored performance, performed root cause analyses, and ensured adherence to SLAs
  • Supported data and solution architects in building scalable data models for ML and analytics scenarios

Discover over 15,000 top freelancers

Statistics of experts using scikit-learn

Aggregated from the professional profiles of matched freelancers.

Experience

11 years

Position duration

1.8 years (Germany: 1.9 years)

Positions per freelancer

6 (Germany: 8)

Top business areas

Information Technology, Business Intelligence, Product Development

Top industries

Information Technology, Education, Retail

Certification focus areas

Information Technology, Product Development, Business Intelligence

Bachelor's degree or higher

100% (Germany: 99%)

Master's degree or higher

73% (Germany: 83%)

Certifications per freelancer

3 (Germany: 2)

Most common languages

German, English, French

Speak two or more languages

100% (Germany: 98%)

Based on our profile pool as of 30 Aug 2026.

Daily rate distribution

0 2 4 6 8
<€800 €800-​1200 €1600+

The chart shows how the daily rates of freelancers in this technology in Cologne are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.

Average rates of experts in Cologne using scikit-learn

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Rate comparison chart
Daily rate avg. 716 €
Germany avg. 679 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

800
600
400
200
Rate comparison chart
Median rate 760 €
Germany median 720 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

About the technology

What it is

scikit-learn is the standard Python library for classic machine learning. It is used for classification, regression, clustering, feature selection, and model evaluation. Teams choose it when they need clear, repeatable models that are easy to test and ship.

Typical work

  • Build training and validation pipelines
  • Prepare features and encode data
  • Tune models and compare metrics
  • Package reusable sklearn workflows
  • Support notebooks, scripts, and services

Ecosystem

Strong professionals around scikit-learn usually work with Python, NumPy, pandas, and Jupyter. They also know how to connect the library to job schedulers, APIs, and data workflows so models fit into real systems, not just notebooks.

When to bring in help

Companies bring in freelance expertise when a model needs to move from experiment to production, or when an existing sklearn setup has become hard to maintain. In Cologne, this often comes up in analytics, e-commerce, logistics, and industrial data work, where teams need practical support without long onboarding.

What strong experts do

A good specialist does more than call fit and predict. They choose suitable algorithms, avoid leakage, check data quality, and explain trade-offs in plain language. They also know when scikit-learn is the right tool and when a different approach fits better.

How teams collaborate

Work can happen fully remote or partly on-site, depending on the data access and the project stage. For Cologne-based teams, English is often enough for technical work, but a specialist who can align with local stakeholders in German can make reviews and handovers smoother.

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Frequently asked questions

What clients ask us most about scikit-learn — answered in short.

scikit-learn is used to build classic machine learning models in Python. Teams use it for classification, regression, clustering, feature selection, preprocessing, and evaluation. It is a good fit when the goal is a reliable model pipeline rather than deep learning.

Yes. sklearn is the import name used in code, while scikit-learn is the full project name. In hiring, both terms usually point to the same skill set, so it helps to search for both.

A scikit-learn specialist usually works on structured data and classic ML tasks. TensorFlow and PyTorch are more common for neural networks, computer vision, and large sequence models. If your project is tabular data, scoring, or explainable pipelines, scikit-learn is often the simpler choice.

A strong scikit-learn freelancer should also know Python, pandas, NumPy, and solid data cleaning practices. Experience with feature engineering, model validation, and basic deployment patterns is valuable too. If the project touches production systems, API and workflow knowledge matters as well.

A small proof of concept may only need a specialist who can build a clean baseline and explain the results. Production work needs stronger judgment around data leakage, metrics, reproducibility, and monitoring. The more business-critical the model, the more important proven delivery becomes.

Yes, most scikit-learn work can be done remotely if data access, reviews, and communication are set up well. For Cologne-based teams, on-site sessions can help when the project depends on sensitive data, stakeholder workshops, or handover meetings. A hybrid setup is common when both are needed.

Ask for examples of real pipelines, not just notebooks. A good sklearn specialist can explain model choice, validation method, feature handling, and how the work will be maintained after handover. Clear reasoning is usually a better sign than flashy results.

Typical deliverables include preprocessing steps, trained models, evaluation reports, and reusable code. A scikit-learn specialist may also provide a pipeline, feature list, documentation, and guidance for deployment or retraining. The exact shape depends on whether the goal is research, analytics, or production use.

The average hourly rate of freelancers in Cologne, Germany who have used scikit-learn in their recent projects is 90 €, which corresponds to a daily rate of about 716 € based on an 8-hour working day.

Of the freelancers in Cologne, Germany who have used scikit-learn in their recent projects, 100% hold at least a Bachelor's degree and 73% hold at least a Master's degree.

On average, freelancers in Cologne, Germany who have used scikit-learn in their recent projects have 11 years of professional experience, with a single engagement typically lasting around 1.8 years.

The most common languages among freelancers in Cologne, Germany who have used scikit-learn in their recent projects are German (100%), English (100%), and French (33%).

The most common industries among freelancers in Cologne, Germany who have used scikit-learn in their recent projects are Information Technology (83%), Education (58%), and Retail (58%).

The most common business areas among freelancers in Cologne, Germany who have used scikit-learn in their recent projects are Information Technology (100%), Business Intelligence (83%), and Product Development (67%).

Main locations of FRATCH Experts, who have recently used scikit-learn

Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.

Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg

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FRATCH CEO

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