DAX Experts in Cologne
in minutes from over 15,000 CVs with the power of AI.Hire experts who write clear DAX for Power BI, Power Pivot, and Tabular models, and who can shape measures, time intelligence, and model logic for reliable reporting. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH Experts in Cologne, who have recently used DAX
Nadine Sebald
Last position:
HR Consultant & Interim Manager (Freelancer) at Accurids GmbH
Covering a vacancy in HR Operations, hiring HR Manager, active search, Personio automation and workflows, ATS implementation, setup of interfaces to HRMS
Alexander Bromberg
Last position:
Senior Data Engineer at RWE AG
Architected and maintained data products for renewable energy operations, covering wind turbine, grid-meter, and weather data. Built scalable ETL/ELT pipelines in Azure Databricks using Delta Lake (bronze/silver/gold layers) and processed data in various formats, including structured and semi-structured data. Contributed to a data quality framework supporting table and column documentation, outlier detection, and completeness metrics across all datasets within a data product. In addition, implemented a DORA KPI Databricks dashboard used across all data products. Optimized CI/CD processes in Azure DevOps to streamline deployment across development, test, and production environments.
Technology stack: Azure Databricks, PySpark, SQL, Delta Lake, Unity Catalog, Azure Data Lake, APIs, Dremio, Azure DevOps, YAML, Git, Databricks Workflows, Application Insights, Terraform, OpenAI API, Codex, LLM-assisted workflows
Rodion Orlinskiy
Last position:
Founder, CTO & Managing Director at MYNR Product Mining GmbH
- Responsible for the architecture and development of an AI-native SaaS platform for industrial product portfolio management.
- Designed the modern data platform architecture on Azure for scalable analytics and enterprise data integration.
- Built enterprise data ingestion and transformation pipelines across complex industrial system landscapes.
- Developed graph-based representations of product structures and dependencies for analytical reasoning.
- Designed and implemented an agentic AI framework for AI-supported decision workflows.
- Built scalable analytical microservices and integrated reporting through modern BI technologies.
- Coordinated backend, AI, and frontend development across the MYNR platform stack.
Wilhelm Kummer
Last position:
Freelance Lean Expert at Science Management International Corporation B.V.
- SMCI project manager for the implementation of a Lean production system at a food manufacturer in Germany and the Netherlands
- Evaluation and analysis of the current situation in the four plants
- Advising the steering committee, developing a Lean roadmap with recommended activities, reporting to the COO
- Conception and implementation of a training program for 300 Lean experts and coaches in Germany and the Netherlands
- Numerous improvements on the shop floor, noticeable increase in motivation and commitment of individual employees through intensive involvement in the on-site implementation of Lean
- Shortening of set-up times and increased flexibility for smaller batch sizes through SMED workshops with cross-functional teams
- Handover of the project to a Lean program manager
- Start of Lean office in the laboratory, QM, product development, marketing, procurement, controlling, HR and IT
Yaroslav Shargorodskiy
Last position:
Senior Low-Code Consultant at Freelancer
Structured analysis and evaluation of business processes
Gathering, documenting, and prioritizing requirements
Creating business-friendly and technically executable process models
Use of Camunda tools
Deriving requirements and interfaces from BPMN diagrams
Coordination with stakeholders and business units
Translating business requirements into technical solution designs
Implementing efficient and tailored applications
Systematic collection, analysis, and documentation of requirements
Prioritizing and validating requirements in close collaboration with stakeholders
Alignment between business and development to ensure shared objectives
Creating use cases, user stories, and acceptance criteria
Continuous requirements and change management throughout the project lifecycle
Define project goals and create project plans
Delegate tasks and monitor project progress
Monitor budgets and inform stakeholders
Mendix: Architecture, development, and maintenance of custom applications (Microflows, Domain Model, Security, XPath)
Modeling Mendix workflows for process optimization
Develop scalable apps with Mendix including REST/SOAP integration with SAP, SQL, Azure & SharePoint
UI design for Mendix using Atlas UI, Fluent UI, HTML, CSS, JavaScript
Develop web & mobile apps with Mendix using agile methods (Scrum, Kanban)
Implement business logic with Mendix Microflows and Nanoflows
Performance optimization and architecture improvements for Mendix applications
Conduct Mendix training
Create technical documentation and best practices for Mendix
Coaching and mentoring for low-code development with Mendix
Thomas Reick
Last position:
BI Consultant and Power BI Developer at Plusnet GmbH
- In-depth forensics of old and new data sources
- Enhancing existing reports and creating new data analyses
- Data preparation from source systems and semantic models
- Azure DevOps integration
- Tools/Skills: MS-PowerBI, DAX, MS-Office 365, PowerQuery, M, PowerAutomate, Redmine, SharePoint, SQL (T-SQL, Oracle), MS Fabric
Stylianos Fountoulakis
Last position:
Senior Business Manager / Lead Business Administrator at Tata Business Services
- IT company from India providing services in all areas of information technology, business management, consulting and sales, including support in research and development
- Responsible for complex cross-functional transition and transformation activities
- Acquiring a DAX company as a customer
- Leading a global program to implement a global drug discovery software
Vitali Haberkorn
Last position:
Power BI Expert at Media Agency
The project aims to migrate the company's existing Power BI Premium environment to Microsoft Fabric. This migration includes moving the existing data models, reports, and dashboards to the new platform to take advantage of the extended features and improved performance of Microsoft Fabric. The solution will be deployed in various regions worldwide to ensure a unified and consistent reporting and analytics environment for all locations.
Requirements analysis, migration planning, data migration, adapting reports and dashboards, testing and validation, training and support, deployment and monitoring, regional rollout.
Ronny Herold
Last position:
Förderbank Deutschland
- Extraction and transformation of relevant data from the SAP system developed for the bank and consolidation into the existing reporting environment
- Integration of the data into the existing BI model (extending the star schema to a galaxy schema) for generating the funding committee report and the business development report
- Ensuring data quality
- Knowledge transfer to department staff (SAP, SQL database, Power Pivot, DAX)
Christoph Diener
Last position:
Lecturer & Technical Author at AUDfIT Deutschland GmbH
- Training auditors with a focus on the German Commercial Code (HGB) and financial statement audits (JAP)
- Professional training on auditing and preparing financial statements
- Author of technical content and articles on sustainability reporting (CSRD, ESRS, VSME)
- Linking traditional audits with current ESG topics
Discover over 15,000 top freelancers
Statistics of experts using DAX
Aggregated from the professional profiles of matched freelancers.
Experience
20 years (Germany: 19 years)
Position duration
3 years (Germany: 3.3 years)
Positions per freelancer
11 (Germany: 10)
Top business areas
Information Technology, Business Intelligence, Product Development
Top industries
Professional Services, Information Technology, Manufacturing
Certification focus areas
Information Technology, Project Management, Business Intelligence
Bachelor's degree or higher
88% (Germany: 91%)
Master's degree or higher
50% (Germany: 62%)
Certifications per freelancer
4 (Germany: 3)
Most common languages
German, English, Italian
Speak two or more languages
90% (Germany: 97%)
Based on our profile pool as of 30 Aug 2026.
Daily rate distribution
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 DAX
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
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 DAX does
DAX, short for Data Analysis Expressions, is the formula language used to calculate measures and columns in Power BI, Power Pivot, and Analysis Services tabular models. It turns model data into business metrics, from revenue and margin to rolling totals and cohort views.
Where it fits
DAX is used when reports need more than simple sums and filters. It powers KPI logic, drill-down analysis, and reusable calculations across dashboards built on Microsoft BI tools.
Common tasks
- Build measures for core business KPIs
- Create calculated columns and tables where model logic is needed
- Write time intelligence for periods, trends, and comparisons
- Refactor slow expressions and remove logic errors
- Align report numbers with source systems and business rules
Tooling and ecosystem
DAX sits inside the Microsoft analytics stack, especially Power BI and Tabular models. Strong specialists also understand the data model, relationships, filter context, and how DAX behaves in visuals, slicers, and row-level evaluation.
When companies bring in help
Teams usually bring in freelance DAX experts when reports are correct in one view but wrong in another, when calculations are hard to maintain, or when a model needs a clean rebuild. In Cologne, this often comes up in finance, manufacturing, logistics, and commercial reporting teams that work with mixed local and remote stakeholders.
What strong experts do
A strong DAX specialist writes expressions that are readable, testable, and tied to business meaning. They understand measures versus columns, context transition, CALCULATE, and the cost of overcomplicated logic. They also document assumptions so handover to the internal team stays simple.
Frequently asked questions
Not sure where to start with DAX? These answers cover the essentials.
DAX is used to create calculations that go beyond raw source data, such as KPIs, ratios, rolling periods, and custom business rules. It is common in Power BI, Power Pivot, and Analysis Services tabular models. Companies use it when they need consistent metrics across reports and dashboards.
DAX is closer to a model-aware calculation language than to standard SQL. SQL shapes and returns data from tables, while DAX evaluates numbers in the context of filters, relationships, and visuals. Compared with Excel formulas, it is built for reusable analytics inside a semantic model.
A strong DAX specialist should also understand data modeling, relationships, filter context, and how Power BI visuals evaluate measures. Knowledge of Power Query, SQL, and tabular model design is often important too. That mix helps them solve both formula issues and model issues.
A project usually needs DAX help when measures become hard to debug, report totals do not match expectations, or performance starts to suffer. External support is also useful when an internal team knows Power BI but needs deeper help with time intelligence or model logic. The best time to bring someone in is before reporting rules spread across many files.
Yes, DAX work is often done remotely because the main deliverables are models, measures, and report logic. For teams in Cologne, that still leaves room for on-site workshops when business rules need to be mapped with finance, controlling, or operations. Many projects use a mix of remote delivery and short in-person sessions.
Look for clear explanations, not just working formulas. A strong DAX freelancer can explain why a measure uses CALCULATE, why a filter behaves a certain way, and how they tested the result. Good signs are clean naming, readable logic, and a model that another specialist can maintain.
No, DAX is also used in Power Pivot and Analysis Services tabular models, so it matters anywhere Microsoft tabular analytics is in use. Power BI is the most visible setting, but the language and concepts carry across the broader ecosystem. That makes it useful for teams standardizing reporting across several tools.
Before you hire a DAX specialist, prepare sample reports, the data model, a list of broken measures, and the business definitions behind each KPI. If you work with teams in Cologne and elsewhere, also share language expectations and who owns final sign-off. Good preparation helps the specialist find the real issue faster.
The average hourly rate of freelancers in Cologne, Germany who have used DAX in their recent projects is 107 €, which corresponds to a daily rate of about 854 € based on an 8-hour working day.
Of the freelancers in Cologne, Germany who have used DAX in their recent projects, 88% hold at least a Bachelor's degree and 50% hold at least a Master's degree.
On average, freelancers in Cologne, Germany who have used DAX in their recent projects have 20 years of professional experience, with a single engagement typically lasting around 3 years.
The most common languages among freelancers in Cologne, Germany who have used DAX in their recent projects are German (100%), English (90%), and Italian (20%).
The most common industries among freelancers in Cologne, Germany who have used DAX in their recent projects are Professional Services (90%), Information Technology (60%), and Manufacturing (60%).
The most common business areas among freelancers in Cologne, Germany who have used DAX in their recent projects are Information Technology (90%), Business Intelligence (70%), and Product Development (60%).
Main locations of FRATCH Experts, who have recently used DAX
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 
Berlin 
Hamburg 
Munich 
Frankfurt 
Dusseldorf Request a free demo
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Philipp Thomaschewski
FRATCH CEO
