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Business Intelligence Experts in Hanover

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Hire experts who design dashboards, shape data models, and turn reporting needs into clear KPI views, Power BI, Tableau, and Qlik solutions. Get fast, precise matching with vetted, available freelancers.

Meet FRATCH Experts in Hanover, who have recently used Business Intelligence

Verified expert

Michael Serejenkov

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Prof. Dr. Michael Serejenkov

Hanover
Michael Serejenkov

Last position:

Data Scientist at CompuGroup Medical Deutschland AG, docmetric GmbH

Development of AI-based and classical models for analyzing medical and patient data, including medication analyses, diagnosis analyses, forecasts, procedure analyses, dosage analyses, comorbidity analyses, prescription analyses, patient potential analyses, and referral profile analyses. Analyses in the area of Real World Evidence.

  • Gathering customer requirements
  • Planning the subproject
  • Designing and defining KPIs
  • Designing and developing models and visualizations of the results using customer dashboards
  • Developing and implementing DWH adjustments
  • Deriving recommendations for action

Methods, technologies: Simulation, Artificial Intelligence, Python, R, SQL, Microsoft Power BI, Amazon Web Services, Elasticsearch, PostgreSQL, Databricks, Multivariate Statistics

Verified expert

Joern Thieme

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Managing Partner

Hanover
Joern Thieme

Last position:

Senior Software Developer | Database Expert | Business Intelligence | 24+ years of project experience at HannoMax GmbH

Are you looking for more than just a developer, but a partner who understands business processes and develops sustainable solutions? Then I am the right person for you.

For more than 24 years, I have been helping companies develop software solutions, use data intelligently, and make business processes more efficient. I combine solid technical expertise with a deep understanding of business operations and economic relationships.

My focus is on developing custom software and database solutions as well as integrating existing systems. I have implemented numerous projects in which CRM, ERP, webshop, logistics, and other business systems were connected with each other. The result is automated processes, less manual work, and higher data quality.

I also develop business intelligence and data warehouse solutions as well as management reports that give decision-makers a reliable data basis at any time.

I get up to speed quickly in existing systems and also find practical, cost-effective solutions for complex requirements. I always keep the overall system in view - not just individual lines of code.

My services at a glance:

  • Custom software development
  • Database development and performance optimization
  • Business Intelligence & Data Warehouse
  • Management reporting and dashboards
  • ERP, CRM, webshop, and logistics integration
  • Interface development and process automation
  • Analysis and optimization of business processes
  • Technical consulting and solution architecture My clients value my structured way of working, my quick grasp of things, and my high standards of quality. I think like an entrepreneur, communicate on equal footing, and develop solutions that work well in the long run.

My goal is simple: simplify processes, make data usable, and help companies become more successful with well-thought-out software solutions.

Verified expert

Jan Menzel

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Agile Coach

Laatzen
Jan Menzel

Last position:

Agile Coach at VHV Versicherung

  • Did not take on any project assignments during this period
  • Conducting coaching sessions, workshops, trainings and facilitation assignments
Verified expert

Willi Ziegenhagel

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Data Analyst

Barsinghausen
Willi Ziegenhagel

Last position:

Data Analyst

  • Analysis of process data
  • Data preparation with SQL
  • Development of reports & dashboards in Celonis
Verified expert

Martin Schaefer

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Measurement Data Provision via LoRa

Hanover
Martin Schaefer

Last position:

MS Fabric Certification

MS Fabric certification with creation of pipelines and notebooks in Fabric using data from Azure, Azure Repos, Azure Boards, and GitHub. Data ingestion via OneLake Explorer, direct IP connection, and API (REST) are the main topics

Verified expert

Hardy Bürger

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Project and Portfolio Manager

Hannover
Hardy Bürger

Last position:

Lean Portfolio Manager at HDI Global SE

  • Establishing active KPI measurement
  • Designing and continuously optimizing LPM processes for budget planning and controlling based on the SAFe framework
  • Building and refining a dashboard to provide transparency into an ART's total costs
  • Training PMs and ARTs
  • Preparing all resource and budget planning
  • Generating cost reports and forecasts and identifying action needs
  • Establishing strategic portfolio management
Verified expert

Jan-Philipp Schiele

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IT Project Management Coach (Freelance)

Wunstorf
Jan-Philipp Schiele

Last position:

IT Project Management Coach (Freelance) at The Project Coach

  • Set up and manage complex project and rollout structures (SAP, cloud, portfolio) for large public sector programs
  • Provide professional leadership to interdisciplinary teams (up to 30 people)
  • Coaching and advising project and program managers
  • Facilitation of national and international workshops and committees
  • Set up and manage backlog, risk, and dependency management; meeting and agenda structures
  • Lead cross-functional teams and facilitate steering formats
  • Coordinate individual transformation projects across multiple broadcasters
  • Use various project and portfolio management tools (ServiceNow, Planview, Cplace, Clarity, Jira, Confluence)
  • Develop rollout scenarios; manage pilot and full-scale go-live
  • Responsible for change and communication concept, as well as organizational training (train-the-trainer, key-user network)
  • Central control and harmonization of rollout activities across five broadcasters; standardization of project management methods, risk management, and integration management
Verified expert

Arnav Sarkar

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Scientific Assistant (HIWI)

Hannover
Arnav Sarkar

Last position:

Scientific Assistant (HIWI) at Institute of Transport and Automation Engineering, Production Technology Center, Leibniz University Hannover

  • Implemented stereo camera calibration and applied incremental Structure from Motion (SfM) algorithms to build a detailed 3D model of a forklift for an AR-enabled Smart Forklift project
  • Developed OpenCV-based preprocessing that improved data accuracy by 20% and enhanced the analysis of industrial videos
Verified expert

Emmanuel Abrokwa

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LLM Evaluation & Prompt Engineering — Legal Focus

Hannover
Emmanuel Abrokwa

Last position:

LLM Evaluation & Prompt Engineering — Legal Focus at Outlier — Phoenix Platform

  • Improved model compliance accuracy by 30% through legal auditing of AI outputs.
  • Designed rubrics to detect AI governance and IP infringement risks in high-risk use cases.
  • Enhanced prompt consistency to reduce hallucination-related liability exposure.
  • Legal & Governance: GDPR, EU AI Act, IP licensing, platform liability, legal drafting.
  • Technical: Python, NLP in Python, Power BI.
  • Tools: Clio, Westlaw, LexisNexis, Microsoft Office.
Verified expert

Yenal Yavuz

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Shiny R Development

Hanover
Yenal Yavuz

Last position:

Shiny R Development at RadixITS Gbr

  • Implementation and mapping of regulatory requirements (CSRD, ESRS) in Shiny dashboards and backend functionalities
  • Design and development of data-driven modules in Shiny including ESG metrics and reporting templates
  • Integration of data sources (SQL, SAP HANA, APIs, CSV/Excel) using DBI, odbc, httr and readr
  • Creation of interactive visualizations with plotly, highcharter and DT (DataTables)
Verified expert

Marvin Woischnik-Lange

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PACS Senior IT Project Manager

Hanover
Marvin Woischnik-Lange

Last position:

PACS Senior IT Project Manager at Fraport / ID Engineering

  • Took a leading role integrating NECT Ident and NECT Sign (AI-based solutions for identity verification and electronic signature) into ID Engineering's PostgreSQL PACS (Physical Access Control System) used at Fraport.
  • Analyzed system architecture and interfaces, and implemented Microsoft Azure REST API integrations for legally compliant identity verification and signature.
  • Developed and implemented security-critical workflows in Visual Studio Code to seamlessly embed NECT processes into existing PACS Mulesoft Anypoint Platformâ„¢ structures.
  • Contributed to the evolution of the airport security architecture by linking identity verification, ID management, and physical access control with Microsoft Power BI.
  • Collaborated closely with NECT and internal IT teams on API configuration, testing, and production rollout.
Verified expert

Torsten Glunde

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BI consultant

Hanover
Torsten Glunde

Last position:

Datavault with Informatica on Oracle at SEFE

  • Datavault modeling and performance improvements in Oracle.
  • Requirements process with model-driven Datavault automation.
  • Preparation of business requirements for the pricing database in the gas and electricity market.
  • Sales performance based on Salesforce CRM.
  • Tasks: design and development.
  • Tools used: Informatica, Oracle, DBT, Docker, DataOps, Airflow Workflow, Python Ingestion, Gitlab CI.

Discover over 15,000 top freelancers

Statistics of experts using Business Intelligence

Aggregated from the professional profiles of matched freelancers.

Experience

19 years

Position duration

1.8 years (Germany: 3.1 years)

Positions per freelancer

17 (Germany: 11)

Top business areas

Information Technology, Business Intelligence, Product Development

Top industries

Information Technology, Professional Services, Government and Administration

Certification focus areas

Information Technology, Business Intelligence, Project Management

Bachelor's degree or higher

100% (Germany: 94%)

Master's degree or higher

62% (Germany: 65%)

Doctorate

23% (Germany: 9%)

Certifications per freelancer

4 (Germany: 3)

Most common languages

German, English, French

Speak two or more languages

93% (Germany: 98%)

Based on our profile pool as of 30 Aug 2026.

About the technology

What BI covers

Business Intelligence turns raw data into reports, dashboards, and decisions teams can trust. It combines data modelling, KPI design, and visual analysis so managers can track sales, operations, finance, and customer trends. Strong work in this area also means clean definitions, not just attractive charts.

Common tools

  • Power BI for interactive reporting and sharing
  • Tableau for visual analysis and executive dashboards
  • Qlik for associative analysis and guided exploration
  • SQL for extracting and shaping source data
  • Excel for quick analysis and controlled business reporting

What specialists deliver

BI specialists build reporting layers, refine data models, and set up dashboards that answer real business questions. They often work on scorecards, self-service reporting, and management views that pull from ERP, CRM, finance, and web data. Good delivery focuses on clarity, consistency, and trusted definitions.

When to bring in help

Companies usually bring in freelance support when reports are inconsistent, dashboards are slow, or teams need a new reporting layer for a product launch or restructure. In Hanover, this is common for companies that need close collaboration with finance, logistics, manufacturing, or sales teams, but can still work remotely with local stakeholders.

What strong experts do

  • translate vague reporting needs into measurable KPIs
  • join data sources without creating duplicate logic
  • explain what a chart shows and what it does not
  • keep access rules, refreshes, and ownership clear
  • document dashboards so teams can maintain them

Skills around BI

A strong BI professional often brings SQL, data modelling, ETL or ELT knowledge, and a good grasp of source systems. They also understand business terms well enough to challenge unclear requests. In Hanover projects, German-language communication can matter when stakeholders want direct workshop notes, working sessions, or handover material.

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Frequently asked questions

Questions about Business Intelligence? Start with the answers below.

Business Intelligence is used to turn operational data into reports, dashboards, and decision support. Teams use it to monitor sales, finance, operations, customer behavior, and other key areas without pulling numbers from scattered spreadsheets. The goal is a shared view of the business that people can trust.

Business Intelligence focuses on presenting and interpreting business data through reports, dashboards, and KPI layers. Data warehousing is more about storing and organizing data, while analytics can go deeper into exploration and statistical work. In practice, BI often sits on top of a warehouse and feeds day-to-day decision making.

A strong BI specialist often works with Power BI, Tableau, Qlik, SQL, and Excel. The exact stack depends on the company’s data sources and reporting style. Good candidates can explain why a tool fits the use case instead of pushing the same setup everywhere.

For Business Intelligence, SQL and data modelling are usually just as important as the dashboard tool itself. Knowledge of ETL or ELT, source systems like ERP or CRM, and clear KPI design also matters. The best specialists can discuss business processes, not only technical dashboards.

A Business Intelligence task that only adjusts an existing dashboard may need a focused specialist with strong tool knowledge. A new reporting layer, a merge of multiple data sources, or a KPI redesign needs someone who understands modelling, governance, and stakeholder alignment. The harder the business logic, the more experience matters.

Most Business Intelligence work can be done remotely if access, data, and feedback loops are set up well. On-site time in Hanover can help during workshops, stakeholder interviews, or handover sessions with local teams. Many projects use a mix of both.

Look for a BI specialist who asks about source data, KPI definitions, refresh rules, and who owns each report. Quality shows up in clear logic, clean naming, and documentation that makes maintenance easier. Good work also includes honest trade-offs when data is incomplete or inconsistent.

No, Business Intelligence is the wider discipline, while Power BI is one tool often used to deliver it. BI can also be built with Tableau, Qlik, or other reporting stacks depending on the company setup. If someone only knows one tool, ask how they handle modelling, governance, and source data outside that tool.

Of the freelancers in Hanover, Germany who have used Business Intelligence in their recent projects, 100% hold at least a Bachelor's degree, 62% hold at least a Master's degree, and 23% hold a doctorate.

On average, freelancers in Hanover, Germany who have used Business Intelligence in their recent projects have 19 years of professional experience, with a single engagement typically lasting around 1.8 years.

The most common languages among freelancers in Hanover, Germany who have used Business Intelligence in their recent projects are German (100%), English (93%), and French (21%).

The most common industries among freelancers in Hanover, Germany who have used Business Intelligence in their recent projects are Information Technology (100%), Professional Services (79%), and Government and Administration (71%).

The most common business areas among freelancers in Hanover, Germany who have used Business Intelligence in their recent projects are Information Technology (100%), Business Intelligence (86%), and Product Development (79%).

Main locations of FRATCH Experts, who have recently used Business Intelligence

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.

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Philipp Thomaschewski

FRATCH CEO

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