Martin Thomas
Interim Controller
Experience
Interim Controller
OUTFITTERY GmbH
Monthly closing, marketing controlling and investor reporting
Knowledge transfer for controlling
Optimization of controlling, budgeting and forecasting processes
Methods/technologies used:
Tableau
Microsoft Navision
Data Governance Consultant
Aequitas AFFINITY GmbH (for vehicle manufacturers)
- Master data analysis
- Workshops and consulting on data governance
Interim Controller
Mail order company
Setup of controlling, calculation and automation of reporting, category management and purchasing
Project management for knowledge transfer in controlling
Optimization of controlling and data management
Methods/technologies used:
Microsoft Power BI
KLAR!
Deltamaster
Project Manager for Accounting and Reporting
Private plumbing, heating and ventilation company
- Project management for accounting succession and outsourcing
- Project management for handover of reporting and liquidity planning
Project Manager for Data Management and Reporting
Arverio Germany GmbH (formerly Go-Ahead)
Project management of data strategy, data warehouse and data quality
Coordination of various software service providers and BI consulting
Identification of KPIs for management, operations planning, HR, sales, energy, safety, quality assurance, transport contract management and controlling
Creation of dashboards and reports for all departments
Selection and migration of an ETL tool (CloverDX)
Requirements management and specification document for timetable status
Data quality management
Process optimization (process analysis, documentation, modeling)
Methods/technologies used:
Scrum (Agile methodology) and ticketing systems
Microsoft Power BI
CloverDX, SQL, Azure Data Factory
Team Lead Controlling
Bohlsener Mühle GmbH & Co KG
- Restructuring of controlling (production, finance, purchasing, sales, sustainability, and cost center controlling)
- Implemented and migrated from QlikView to Power BI, including dashboards
- Adapted and redesigned costing
- Designed and implemented the budgeting process, corporate planning, and forecasts
- Conducted target vs actual comparisons and analyses
- Introduced data management
- Led sub-project for ERP MS Business Central implementation (requirements analysis and specifications for master data and controlling)
- Process optimization and process modeling
- Developed ETL pipelines and data warehouse
- Assisted with annual and monthly financial closings and regular inventory valuation
- Provided technical and disciplinary leadership for three employees
- Methods/Technologies used:
- Scrum (agile methodology)
- Jira, Confluence
- Microsoft NAV, MS SQL
- Microsoft Power BI
- Talend ETL, SQL
Head of Business Analytics & Processes
Bauer Media Group
- Managed the Business Analytics and Processes department
- Further developed data strategies and reporting processes
- Coordinated analytics projects and process optimizations
- Stakeholder management and strategic planning
Business Intelligence Controller
Bauer Media Group
- Project lead for the selection and implementation of BOARD (requirements management, stakeholder management, and project controlling)
- Process analysis, process modeling (BPMN), and process optimization in controlling and finance
- Designed, developed, tested, and implemented corporate planning (budget, forecast)
- Designed quality management processes
- Ensured clear data requirements, data management, data quality assessment, and data migration
- Data warehouse migration from SAP BW to MS SQL
- Created and expanded personnel reports, budget reports, and BU and group reports
- Built and led a team of functional and technical staff
- Methods/Technologies used:
- BOARD, Microsoft Power BI, Excel
- Scrum and traditional IT project management
- Jira, Confluence
- SAP CO, MS SQL
Assistant to the Managing Director / Head of Controlling Department
Deerberg GmbH
- Assisted management and led controlling
- Strategic planning and budget responsibility
- Process optimization and digitization projects
- Performed analyses and reporting
- Team leadership and project management
Team Lead Controlling & Business Intelligence
Deerberg GmbH
- Responsible for controlling and BI development
- Managed reporting and analysis projects
- Further developed costing and planning systems
- Implemented new BI solutions and dashboards
Business Informatics Specialist / BI Consultant
Deerberg GmbH
Advising and supporting management on strategic and operational projects
Establishing and managing corporate controlling (marketing, sales, online, purchasing, supply chain, stores, HR, IT)
Leading and quality managing agile (SCRUM) and traditional software projects (ERP, PIM, e-shop, data warehouse, BI systems)
Creating dashboards and visualizations and performing data mining on customer data and assortment structures
Restructuring and coordinating digitalization and data strategy
Conducting actual vs. target comparisons, analyses, budget planning and liquidity planning
Participating in annual and monthly financial statements and inventory valuations
Building and leading a team of business and technical staff
Methods/Technologies used:
Tableau, SAP BusinessObjects
mgm Commerce ERP (Choice 6)
Scrum and traditional IT project management
Jira, Confluence
Talend, MS SQL, Datev, SQL, PIM – eggheads
Senior-Software-Engineer
AIC Group GmbH
- Further development of analytical campaign management and data quality services
- Leading technical implementations and optimizations
- Creating complex reports and data warehouse solutions
Software-Engineer
AIC Group GmbH
Designing, specifying, requirements analysis, and implementing analytical campaign management software
Developing customer master data and data quality services
Creating custom reports, data warehouse, and data quality systems for retail companies
Methods/Technologies used:
MicroStrategy
Java/Spring, REST, Hibernate
Scrum, Jira
Talend
MS SQL, Oracle, DB2
ai.Suite, SaaS-OfferEngine
Software-Engineer
Werum Software & Systems AG
Software development, specification, and implementation of production software (MES) in the pharmaceutical sector
Designing and implementing quality and test management processes
Methods/Technologies used:
Java, JUnit
Scrum, Jira
PAS-X MES Suite
GMP
Working Student and Master's Thesis
bonprix Handelsgesellschaft mbH (Otto Group)
Executing own software projects in teleshopping and competitor analysis (web mining)
Reporting for purchasing management
Methods/Technologies used:
PHP, Oracle, SQL
Student Research Assistant, Diploma Thesis Student and Intern
Fraunhofer Institute IITB (now IOSB)
Concept, design and implementation of information systems in multinational research projects (EU-CHIL, NATO-CAESAR)
Methods/technologies used:
Java
OWL, Ontologies, Semantic Web, Protege
Software agents
Statistical Information Systems Intern
Werum Software & Systems AG
Concept, design and implementation of web applications
Methods/technologies used:
PHP, MySQL
Industries Experience
See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.
Experienced in Retail (7 years), Fashion (6.5 years), Information Technology (4.5 years), Pharmaceutical (2.5 years), Food and Beverage (1.5 years), and Media and Entertainment (1.5 years).
Business Areas Experience
The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.
Experienced in Business Intelligence (11.5 years), Information Technology (9.5 years), Project Management (9.5 years), Finance (7.5 years), Product Development (5.5 years), and Accounting (3.5 years).
Summary
- Strong interdisciplinary, strategic and solution-oriented working approach
- Leadership of company-wide software and digitization projects
- Setup and migration of BI, controlling and reporting systems
- Extensive experience in controlling and process optimization
Skills
Ms Office(++)
Tableau(+)
Power Bi(++)
Cloverdx(+)
Talend(+)
Board(o)
Databases(++)
Jira(+)
Confluence(+)
Ms Visio(+)
Datev(o)
Ms Nav(+)
Ms Business Central(o)
Sap Co(o)
Ms Fabric(o)
Sql(++)
Java(+)
Php(+)
Bpmn(++)
Python(o)
Xml(+)
Scrum(++)
Project Management(++)
Requirements Management(++)
Data Quality(++)
Data Governance(++)
Software Selection(++)
Data Mining(o)
Neural Networks(o)
Liquidity Planning(++)
Budget And Company Planning(++)
Kpi Metrics(++)
Process Optimization(++)
Customer Analysis(++)
Cost Optimization(++)
Restructuring(+)
Calculation(+)
Data Protection(o)
(Online) Marketing/sales(++)
Project(++)
Purchasing(++)
It(++)
Finance(+)
Production(+)
Hr(+)
Logistics(+)
Languages
Education
Leuphana Universität Lüneburg
Master of Science in Business Information Systems · Business Information Systems · Lüneburg, Germany · 2,0
FH Nordostniedersachsen
Diploma in Business Informatics (FH) · Business Information Systems · Lüneburg, Germany · 2,0
Technische Universität Braunschweig
Computer Science · Braunschweig, Germany
Certifications & licenses
Professional Scrum Master (PSM I)
scrum.org
OKR Foundation
OKR Institute
In-Memory Data Management Certificate
openHPI - Hasso Plattner Institute
Profile
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