BI Developer
in minutes from over 15,000 CVs with the power of AIHire BI developers for data models, dashboards, KPI reporting, ETL/ELT pipelines, and semantic layers in Power BI, Tableau, Qlik, or Looker. Get fast, precise matching with vetted, available freelancers.
Meet FRATCH BI Developer
Marco Skulschus
Last position:
Business Analyst, Data Warehouse Developer at NRW.Bank
Business analysis for risk controlling.
Development of a data warehouse based on MS SQL Server with data from the FIS Cross-Asset Trading and Risk Platform (formerly Front Arena).
Implementation of ETL and transformation logic with T-SQL and Python (template engine Jinja2).
Modeling and automation of data structures with Data Vault.
Building reporting and analysis reports with Microsoft Power BI, including training and onboarding of users.
Hervé Teguim
Last position:
Senior Data Engineer at Schweizerische Post AG
Tools: Fabric, AWS, dbt, Power BI, SQL, DWH, R, Python
- Supported customers in implementing an architecture design for extracting and preparing data
- Planned the design and implementation of the BI and DWH platform
- Ensured the scalability and performance of the data platform
Ritalee Monde
Last position:
AI Data Annotation & Quality Analyst at Stellar & Abaka AI
- Annotate and validate datasets for AI and machine learning systems.
- Review annotation quality against project guidelines and taxonomies.
- Support model development through high-quality data preparation and quality assurance.
Ajay Kumar Deekonda
Last position:
Senior BI and Analytics Engineer at Novartis
- Led enterprise reporting modernization by migrating legacy SSRS reporting solutions to Power BI, supporting 500+ business users while ensuring full GDPR/DSGVO compliance.
- Designed and optimized Power BI and Microsoft Fabric semantic models using star schema, dimensional modeling, advanced DAX, and performance optimization techniques, reducing query latency by 25%.
- Delivered 20+ executive and operational dashboards featuring KPI scorecards, drill-through, bookmarks, and row-level security, improving reporting efficiency by 20%.
- Enabled self-service analytics through governed Power BI datasets, dataflows, and gateway architecture, increasing business-led reporting adoption by 35%.
- Configured an incremental refresh policy and query folding for a 50+ million row sales dataset, reducing daily report refresh times by 85%.
- Deployed automated ETL/ELT pipelines using Azure Data Factory, Microsoft Fabric, and Snowflake, reducing reporting delivery timelines by 40% through workflow automation.
- Spearheaded Microsoft Fabric analytics modernization initiatives including lakehouse architecture, OneLake integration, and centralized data platform development, reducing data latency from 2 hours to 20 minutes.
- Translated business requirements from 15+ stakeholders into scalable Power BI semantic models and dashboards, improving reporting consistency and reducing ad-hoc reporting requests by 25%.
- Applied Microsoft Copilot and generative AI tools to accelerate SQL development, DAX authoring, technical documentation, and testing activities, reducing development effort by approximately 15 hours per week.
Oleg Orlov
Last position:
Senior Software Developer / BI Integration Developer Power BI, C# at Telecommunications
Embedded Analytics & AI-assisted BI
Design and development of an integrated analytics solution based on ASP.NET Core, Power BI Embedded, and LLM services to provide contextual business information.
Development of an AI agent with Function/Tool Calling for secure orchestration of REST APIs, SQL data sources, and technical services within defined business processes.
Build-up of automated BI workflows including workspace management, deployment processes, and scheduled refresh via the Power BI REST API.
Implementation of secure service-to-service communication with Microsoft Entra ID and service principal, as well as integration into existing enterprise system landscapes.
Technologies: ASP.NET Core, C#/.NET, Power BI Embedded, Power BI REST API, LLM API, AI Agents, Function/Tool Calling, Entra ID
Muhammad Babur
Last position:
Data Engineer | Strategy Consultant at IBM
Responsibilities
- Facilitated financial institutions in Oracle FCUBS upgrade and data migration.
- Developed Core Banking ETL pipelines using Python, SQL, PL/SQL, PySpark and Databricks to ingest, transform and validate transaction data with MLflow for experiment tracking and model lifecycle management.
- Built scalable data solutions using Snowflake, Delta Lake, AWS (Glue, S3, Redshift) and Azure MS Fabric for secure high-performance analytics.
- Orchestrated workflows with Airflow and CI/CD using GitLab for automated deployments monitoring operations.
- Enabled reporting and analytics via Data Warehousing & BI tools (Power BI, Power Query, OBIEE, SSRS) to support compliance, and business decisions.
Carsten Feichtinger
Last position:
Interim Controller / Knowledge Transfer at Medium-sized manufacturing company in the construction industry, existing client
Focus areas: knowledge transfer, reporting, cost analysis Tasks
- Ensure knowledge transfer from the outgoing controller
- Document key controlling processes
- Operational controlling (cash flow planning, reporting)
- Simplify the cost center structure to improve cost analysis Results
- Transparent knowledge transfer and sustainable documentation of controlling processes
- Improved cost analysis and more efficient reporting
Dimitar Stratiev
Last position:
SAP BW Bridge/Datasphere Developer/Architect at DIMISTRA CONSULTING LTD
Support the client in optimizing and remodeling data flows in SAP BW Bridge in accordance with LSA++ best practices including AMDP transformation routines.
Architectural design and implementation of Datasphere (DSP) data models using tables, data flows, SQL/graphical views, and analytic models.
Setup of replication flows and data flows to integrate data.
Enhanced parameterization using input parameters and derive variables in models.
Derive attributes/texts using associations.
Perform proof of concepts and tests with newly released features in DSP.
Test DSP data models using HANA Database Explorer and SAC Insights.
Assist with scoped roles and DACs in a multi-space tenant.
Prepare technical documentation for the architecture and finalized development.
Offer optimization ideas in both DSP and BW Bridge.
Achieved completion of all design, development, and support activities successfully and on time.
Vastly improved performance of BW Bridge flows by rewriting routine logic using AMDP over ABAP.
Simplified current reporting solutions by splitting the complexity of the flows to the strengths of BW Bridge and Datasphere respectively.
Anshita Srivastava
Last position:
Business Intelligence Developer and Data Analyst at Deloitte Consulting
Specialize in turning complex data from diverse environments into actionable business value through compelling visual storytelling. I am an expert in generating actionable insights and presenting recommendations to business stakeholders. My technical proficiency in SQL, Python, and leading data visualization tools like Tableau and Power BI allows me to deliver a new generation of self-service tools and analytics services.
- Data Visualization & Storytelling: Created impactful data visualizations and dashboards in Tableau and Power BI, effectively communicating findings and presenting actionable recommendations to C-suite stakeholders and business leaders.
- Stakeholder Management: Built effective working relationships with key business stakeholders, data engineers, and other partners to achieve common data-driven goals and targets.
- Insights & Recommendations: Generated actionable insights from complex data analysis for funnel conversion, marketing performance, and ROI, directly influencing business performance and strategy.
- Data Collaboration & Empowerment: Worked closely with cross-functional teams to support the ongoing data needs of internal partners, helping to optimize internal data processes and workflows.
- BI & Data Expertise: Applied extensive experience in data modeling, data collection, data mining, and analysis to deliver end-to-end analytical solutions from stakeholder discovery to production.
Stefan Dangubic
Last position:
BI Consultant in Controlling at Reutter GmbH
- Extraction, transformation, and cleansing of data from Microsoft Dynamics AX
- Creation of sales reports in Power BI
- Training employees in business intelligence
- Technologies: Power BI, SQL, SQL Server Integration Services (SSIS)
Any-Arlene Niyubahwe
Last position:
Co-Founder · Data Engineering & Backend at zirikana (Kirundi Bible Web App) – Civic Technology
- Built a Python pipeline that converts lectionary web content into structured daily JSON, applying liturgical-calendar rules for accurate weekday and Sunday coverage.
- Shipped a read-only FastAPI REST API with shared Pydantic models and delivered a Kirundi-first web client for browser and mobile use.
- Owned the data layer and backend architecture, collaborating closely on system architecture and interfaces while automating refreshes with GitHub Actions and validating the ETL with pytest.
- Impact: Created a reliable, API-driven source of truth for daily Bible readings in Kirundi, enabling consistent access to previously unstructured content.
Guido Klein
Last position:
NOBILIS Group GmbH
- Support during SSRS implementation, including training employees on SSRS
Sofian Mesbahi
Last position:
BI Engineer at General Directorate of Judicial Police (DGJ)
- Developing and scaling a fraud detection and monitoring application for companies at a national level.
- Designing and improving Power BI dashboards and reports, optimizing complex data models and warehouse logic.
- Performing business analysis to align end-user needs with technical requirements, ensuring usability and transparency for non-technical users.
- Contributing to data architecture and integration of new data sources for broader organizational use.
- Developing and implementing a project for workload measurement (werklastmeting) to optimize operational insights and resource tracking.
Tools: Power BI, SQL, DBT
Lukas Michalicka
Last position:
Data Engineer / DWH Developer at Twinformatics (Vienna Insurance Group)
Developed and operated enterprise DWH and ETL solutions for insurance clients, focusing on data quality, traceability, stability and long-term maintainability.
Built and maintained production-critical T-SQL scripts and ETL pipelines in Microsoft SQL Server / DWH environments.
Contributed to IFRS17-related data flows and reporting processes in a regulated insurance environment.
Acted as an interface between business stakeholders and development teams, supporting requirement clarification, coordination and delivery alignment.
Supported data quality checks, operational monitoring, incident analysis and issue resolution for business-critical DWH processes.
Handled release management through Git-based workflows, including preparation, coordination and deployment support.
Performed database operations such as backup/restore activities, environment support and technical documentation.
Contributed to data integration processes using Databricks and Python, including file processing and loading data into database systems.
Data & ETL: T-SQL, Microsoft SQL Server, Google BigQuery · Pentaho Data Integration (Kettle), Databricks (PySpark, Spark DataFrames), Apache Spark
Engineering & delivery: Python, Bash, Azure, AI-driven automation, basic C# · Git, SourceFree, release management, backup/restore, documentation
Domain & practices: Insurance, IFRS 17, data quality, testing, incident and production support
Pierre-Jean Albertini-Fujii
Last position:
Verification Engineer – Aviation at Tri.Merge GmbH
- Automated Python-based analysis of test script repositories
- Built a SQLite database for signal and value tracking
- Identified critical discrepancies with ad-hoc SQL queries
- Technologies: Python, SQLite, Excel/ODBC
Discover over 15,000 top freelancers
BI Developer statistics
Aggregated from the professional profiles of matched freelancers.
Experience
17 years
Position duration
2.5 years
Positions per freelancer
13
Top business areas
Business Intelligence, Information Technology, Project Management
Top industries
Information Technology, Professional Services, Manufacturing
Certification focus areas
Business Intelligence, Information Technology, Project Management
Bachelor's degree or higher
89%
Master's degree or higher
61%
Doctorate
11%
Certifications per freelancer
3
Most common languages
English, German, Spanish
Speak two or more languages
93%
Based on our profile pool as of 21 Aug 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this role 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 for BI Developer
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 21 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
About the role
What they build
A BI Developer turns raw data into reports people can use. They design data models, build dashboards, define KPIs, and make sure business teams see the same numbers everywhere. Strong BI developers also improve data quality and make reporting easier to maintain.
- Dashboards and executive reporting
- Data models and semantic layers
- ETL and ELT workflows
- KPI definitions and metric logic
- Ad hoc analysis support
- Report performance tuning
Core skills
A good BI Developer combines data engineering thinking with business understanding. They work with SQL every day, know how to structure relational data, and can translate vague reporting needs into clear logic. They also need to explain trade-offs to analysts, finance teams, and operations stakeholders.
- SQL and data modeling
- Dimensional design and star schemas
- Data warehousing concepts
- Dashboard design and visual storytelling
- Data validation and reconciliation
- Documentation and stakeholder communication
Tools and stacks
Most BI Developer work centers on a reporting stack such as Power BI, Tableau, Qlik, or Looker. On the back end, they often work with Snowflake, BigQuery, SQL Server, PostgreSQL, Databricks, dbt, or similar tools. The exact stack depends on the company, but the goal is always the same: reliable reporting with clear logic.
When a team already has data engineers, the BI Developer focuses more on the business layer, calculated fields, and reusable metrics. In smaller teams, the same person may cover modeling, dashboarding, and light pipeline work.
Typical freelance work
Companies bring in a freelance BI Developer when reporting needs move faster than internal hiring. This often happens during system changes, new product launches, ERP rollouts, or when existing dashboards no longer match business questions. Freelancers are also useful when a team needs help cleaning up messy reporting logic without adding a permanent role.
What good looks like
A strong BI Developer does more than build charts. They ask the right questions, document definitions, and test whether numbers tie back to source systems. They also keep dashboards simple, so business users can trust them and use them without help.
- Clear KPI definitions
- Reusable data logic
- Stable dashboard performance
- Clean handover and documentation
- Accurate source-to-report reconciliation
- Practical collaboration with analysts and stakeholders
Working with teams
BI Developers often work with finance, sales, operations, and management teams. They may join remote for most of the project and come on-site for workshops, data discovery, or stakeholder reviews. In Germany, many clients expect clear documentation and precise communication, especially when the BI setup supports multiple departments.
For companies, this role is best when the reporting scope is defined but the internal team lacks time or specialist depth. For freelancers, the best projects have access to source systems, a clear owner on the client side, and enough room to improve the reporting layer properly.
Frequently asked questions
Key details about BI Developer, drawn from the questions we get asked most.
A BI Developer turns business requirements into dashboards, reports, and trusted metrics. They usually handle data modeling, SQL logic, KPI definitions, and the reporting layer in tools like Power BI, Tableau, Qlik, or Looker. In many projects, they also clean up broken report logic and make existing outputs easier to maintain.
Look for strong SQL, data modeling, and a clear way of working with business users. A good BI developer understands how source systems map to metrics, can document definitions, and knows how to build reports that stay fast and readable. Tool experience matters, but the ability to translate business questions into reliable logic matters more.
A BI Developer sits between the two. Compared with a data engineer, they focus more on the business-facing reporting layer and less on large-scale pipelines. Compared with a data analyst, they build the reusable structures and dashboards that others use, instead of mainly doing one-off analysis.
A freelancer makes sense when the need is project-based, urgent, or tied to a change like a new ERP, CRM, or data warehouse rollout. A BI Developer freelancer is also useful when you need specialist support for a specific tool or a reporting cleanup, but not a full-time team member. This is often faster than opening a permanent role for a short or uncertain scope.
Expect working dashboards, defined KPI logic, data models, and documented report structures. Depending on the project, the BI developer may also deliver validation rules, semantic layers, and a handover guide for internal teams. Good delivery is not just the report itself, but also the logic behind it.
Most BI Developer work can be done remotely because the main tasks are in data platforms and reporting tools. On-site time can help at the start of a project, especially for workshops, access discussions, or aligning on business definitions. For clients in Germany, mixed setups are common when several departments need to agree on the same numbers.
Ask for examples of how they handled messy source data, changed KPI definitions, or improved a slow dashboard. A strong BI Developer can explain their design choices clearly and show how they checked accuracy against source systems. If they only talk about visuals and not about logic, modeling, and validation, that is a warning sign.
Often yes, but the scope depends on the team. Some BI developers focus mainly on the reporting and semantic layer, while others also build ETL or ELT workflows and dimensional models. If you need both, make the boundary clear before the project starts so the freelancer can plan the work properly.
The average hourly rate for BI Developer is 100 €, which corresponds to a daily rate of about 802 € based on an 8-hour working day.
Of the freelancers working as BI Developer, 89% hold at least a Bachelor's degree, 61% hold at least a Master's degree, and 11% hold a doctorate.
On average, freelancers working as BI Developer have 17 years of professional experience, with a single engagement typically lasting around 2.5 years.
The most common languages among freelancers working as BI Developer are English (96%), German (87%), and Spanish (24%).
The most common industries among freelancers working as BI Developer are Information Technology (82%), Professional Services (58%), and Manufacturing (53%).
The most common business areas among freelancers working as BI Developer are Business Intelligence (98%), Information Technology (95%), and Project Management (58%).
FRATCH BI Developer main locations
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.
Countries:
Berlin Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
Get in touch with the FRATCH team and we will get back to you within 4 hours.
Would you rather directly get in touch?
We always have the time for a call or email!
Philipp Thomaschewski
FRATCH CEO
