Rüdiger (Tiedemann) T.

Interim CFO

Cologne, Germany

Experience

Apr 2025 - Present
5 months
Cologne, Germany

Interim Head of Finance & HR

Schokoladenmuseum Köln GmbH

Museum and events. Led finance & HR, 120 employees, 4 direct reports. ERP: DATEV.

  • Optimized accounting, cash, and payment processes
  • Implemented modern HR software with AI features
  • Restructured internal reporting including cost centers
  • Increased automation in HR and finance
  • Improved data quality and management decision-making
Nov 2024 - Feb 2025
4 months
Cologne, Germany

Senior Accounting Specialist

Alpha Trains Europa GmbH

Rail vehicle leasing, ERP: MS Dynamics 365, project lead: CFO, staff: 150.

  • Accounted for complex syndicated loans under IFRS 9
  • Managed operational accounting for two subsidiaries in Italy and the UK
  • Provided operational support to the CFO
Oct 2024 - Present
11 months
Düsseldorf, Germany

CFO

CMR CureDiab Metabolic Research GmbH

Biotech / pharma start-up. Built finance function, seed financing, 4 employees. ERP: DATEV.

  • Set up finance processes with external accounting
  • Developed business plan and seed pitch deck
  • Aligned finances with medical management
  • Established investor-ready reports and financial planning
  • Implemented efficient structure for early-stage financing
Nov 2023 - Sep 2024
11 months
Wuppertal, Germany

Finance Manager / Senior Expert

Macaw netzkern GmbH

Digital agency / internet marketing. Finance project lead for Germany, 6 employees. ERP: Unit4, MS Dynamics NAV.

  • Prepared multi-year annual financial statements for three entities
  • Developed monthly reports in LucaNet and Power BI
  • Cleansed balance sheets including provisions and intercompany items
  • Restored audit readiness, audits completed
  • Established standardized group-level reporting

Objective: Restoring audit readiness for three German entities, clearing multi-year backlogs, and integrating them into group structures.

  • Prepared several overdue annual financial statements
  • Implemented structured monthly reporting (LucaNet & Power BI)
  • Resolved balance sheet items (provisions, accruals)
  • Aligned transfer pricing; supported external audits
  • Coordinated closely with the Group CFO in the Netherlands
  • Restored audit readiness for all entities
  • Established automated CFO-level reporting
  • Significantly reduced manual adjustments and legacy issues
Feb 2023 - Jun 2023
5 months
Zürich, Switzerland

Finance Consultant

Egon Zehnder AG

HR services – executive search, leadership advisory. ERP: Oracle NetSuite.

  • Optimized finance processes across various offices
  • Implemented purchase orders
  • Established optimized processes
Apr 2022 - Jan 2023
10 months
Bergisch Gladbach, Germany

CFO

Safran Data Systems GmbH

Aerospace / Part of the French Safran group. Finance management for Germany, 75 employees. ERP: Infor M3.

  • Responsible for fast close & local/international reporting
  • Optimized internal control systems (ICS)
  • Migrated reporting tools from Hyperion to SQL
  • Shortened closing cycles and improved group communication
  • Strengthened internal control mechanisms
Aug 2021 - Mar 2022
8 months
Aachen, Germany

Head of Accounting

next e.GO Mobile SE

Automotive start-up. Finance management for accounting, approx. 300 employees. ERP: eGecko / Penta.

Objective: Prepare a high-growth e-mobility start-up for a potential IPO. Transition to IFRS, set up internal controls, digitize the procurement process (P2P), and implement consolidated group reporting.

  • Built group accounting for IPO preparation
  • IFRS conversion incl. IFRS 15/16
  • Digitized the P2P process
  • IFRS-compliant closing within 4 months
  • Achieved audit readiness for IPO preparation
  • IFRS transition incl. IFRS 15 & 16
  • Digitized the purchase-to-pay process
  • Established consolidation across multiple entities
  • Designed and implemented an internal control system (ICS)
  • Supported due diligence and IPO documentation
  • IFRS-compliant fast close within 4 months
  • Public-market-ready, digitized financial processes
  • Successful audits with no major findings
Mar 2021 - Feb 2022
1 year
Frankfurt, Germany

Head of Finance / CFO

T-Balance Therapeutics GmbH

Biotechnology start-up. CFO role in early stage. ERP: DATEV Unternehmen Online.

  • Set up budget and cash management
  • Developed pitch materials and investor reports
  • Successfully prepared and supported seed round
  • Created financial transparency for investors
Oct 2020 - Jul 2021
10 months
Kiel, Germany

Head of Accounting / LCA

KVP Pharma + Veterinär GmbH

Animal pharmaceuticals, formerly Bayer, then Elanco. Financial responsibility in carve-out. ERP: SAP R/3.

  • Took over accounting, treasury, reporting in the carve-out
  • Implemented SOX test plans
  • Optimized P2P/O2C/R2R processes
  • Acted as interface between Bayer and Elanco during exit
  • Successfully migrated SAP in the carve-out
  • Achieved international SOX audit readiness in a short time
Oct 2019 - Sep 2020
1 year
Frankfurt, Germany

Senior Expert Finance

Interxion GmbH

Data centers / IT infrastructure. Fixed assets & finance expert. ERP: SAGE, reporting: HFM.

  • Accounting for fixed assets, CAPEX, IFRS 16
  • Reporting and SOX documentation for Digital Realty
  • Supported US reporting and closing processes
  • Converted and automated standardized reporting structures
  • Successfully implemented IFRS-compliant accounting
Aug 2019 - Sep 2019
2 months
Frankfurt, Germany

Senior Expert Controlling

Groupe SEB

Household appliances / consumer goods. Short-term project in Commercial Controlling. ERP: SAP R/3.

  • Analysis of invoice terms, approx. 15,000 line items
  • Reconciliation of postings, contracts and Excel reports
  • Resolution of complex legacy items
  • Improved traceability of provisions
Oct 2018 - Apr 2019
7 months
Idstein, Germany

Senior Expert Finance & Controlling

Jack Wolfskin

Outdoor apparel and equipment. Group, sales €350M. ERP: MS Dynamics NAV, SAP, AX (implementation). Project manager: Group Finance Director.

  • Controlling: equity investments, OPEX, CAPEX, forecast, budget 1–3 years, operational reports for owners & management
  • Support in group consolidation (13 entities), IFRS 15/16, introduction of Fast Close
  • BI systems for sales controlling, ERP preparation (SAP, AX)
  • Restructuring after takeover by Callaway Golf (US GAAP, IFRS reconciliations)
  • Improved reporting quality & speed
  • Successful switch to new P&L/balance sheet structure & chart of accounts
Jun 2018 - Sep 2018
4 months
Munich, Germany

Co-CFO/Senior Finance Expert

New Flag GmbH

FMCG / personal care. Mature company, sales €50M. ERP: MS Dynamics NAV, project manager: Group COO.

  • Finance & controlling projects including BI systems, group consolidation (7 companies)
  • Set up P&L by product, key accounts, sales channels
  • Analysis of tax returns vs. payments, reclassifications, pricing
  • Implementation of robust structures for reporting and control metrics
  • Significantly increased transparency in product/customer profitability
Aug 2016 - Jul 2018
2 years
Mulhouse, France

Finance Manager

Crane Xomox

Mechanical engineering (industrial valves). Group sales €3B. ERP: QAD, HFM, project manager: CFO USA/Europe. Direct reports: 7.

Objective: Set up a shared service center (SSC) and harmonize processes between German and French entities – including ERP rollout and SOX compliance.

  • Head of Finance/Controlling in Mulhouse including HR, payments, accounting
  • Reporting for USA, budget/forecast, letters of credit, credit management
  • Set up shared service center in Lindau, outsourced payroll in France
  • SOX compliance & internal audits
  • Stabilized & integrated finance after site migration
  • Significantly improved compliance & process quality
  • Designed a cross-border target organization (Finance & HR)
  • Migrated French accounting to Lindau
  • Outsourced payroll & tax in France
  • SSC operational within 6 months
  • Standardized ERP and reporting processes
  • Cost reduction through process consolidation and outsourcing
Apr 2016 - Jul 2016
4 months
Bochum, Germany

Finance Manager

Harman Connected Services GmbH

Automotive software (connected car). Entity sales €10M. ERP: MS Dynamics AX. Project manager: CFO India.

  • Year-end closing 2014/2015, audit of HR/payroll
  • Support for expatriates, development of tax optimizations
  • Audit-compliant closings despite on-site gaps
  • Stabilized HR/tax processes on an interim basis
Feb 2016 - Feb 2016
1 month
Lübeck, Germany

Finance Consultant

Erasco/Continental Foods GmbH

Food / FMCG. PE (CVC). Entity revenue EUR 120 million. ERP: SAP R/3. Project lead: CFO.

  • Analysis of sales processes, key account controlling, campaign tracking
  • Improvement of sales controlling structure
Jun 2015 - Nov 2015
6 months
Münster, Germany

Interim Treasury Manager

Compo Expert GmbH

Chemicals, premium fertilizers. Treasury management after carve-out (PE XIO). ERP: SAP R/3.

Objective: Implement a factoring solution within 4 weeks after carve-out under private equity ownership. Ensure liquidity and compliance with the consortium loan terms.

  • Set up treasury after the carve-out from COMPO / PE Triton
  • Implemented factoring within 4 weeks
  • Built liquidity planning & cash pooling
  • Negotiated credit insurance & payment processes
  • Secured rapid liquidity after spin-off
  • Rolled out structured treasury processes across 20 companies
  • Identified legal and SAP system hurdles
  • Structured the factoring agreement with lenders
  • Automated receivables transfer in SAP
  • Trained accounting on new procedures
  • Went live on the factoring portal
  • Completed receivables sale within the deadline
  • Achieved error-free SAP integration with no reconciliation issues
  • Stabilized liquidity immediately after the carve-out
Mar 2015 - Apr 2015
2 months
Hartha, Germany

Financial Controller

Trimas Germany GmbH

Automotive supplier, group revenue approx. EUR 1 billion, entity revenue EUR 15 million; ERP: Infor Syteline, project lead: CFO, direct reports: 2.

  • Managed operational finance
  • Controlled and provided monthly reporting to HQ, including variance analysis
  • Ensured smooth handover after the finance manager's sudden departure
Jan 2015 - Dec 2016
2 years
Cologne, Germany

Lecturer: Finance/Controlling

Hochschulen Fresenius, ISM

  • Taught IFRS, group accounting, international controlling (DE/EN) to students from international partner universities
  • Developed hands-on course modules
Apr 2014 - Sep 2014
6 months
Düsseldorf, Germany

Finance Manager

DIC Europe GmbH

Specialty chemicals. Finance responsibility across multiple countries. ERP: MS Dynamics NAV, Magnitude.

  • Managed production controlling for the new plant in Vienna
  • Reported to a US group in Magnitude
  • Optimized finance and administration processes
  • Implemented efficient international reporting structures
  • Established fast close
Feb 2013 - Dec 2013
11 months
Braunschweig, Germany

Head of Controlling

Essilor GmbH

Medical technology / eyeglass lenses. Head of Controlling, 3 employees. ERP: Oracle, NAV.

Objective: Replace an outdated Access tool with a scalable BI system for revenue and margin planning by customer and product group.

  • Developed Cubeware BI system for sales & gross profit
  • Implemented QlikView sales reporting
  • Business partnering with sales, HR and SCM
  • Highly integrated and automated planning and reporting
  • Increased transparency on customer/product margins
  • Expanded the Cubeware BI system and data model
  • Managed an external implementation partner
  • Worked closely with sales on model design
  • Rolled out in phases including training and testing
  • New BI system live in 6 months
  • Full margin transparency by customer & product
  • Planning basis for price and SCM optimization
Jan 2011 - Nov 2012
1 year 11 months
Mettmann, Germany

CFO

TechnikService24 GmbH

After-sales service for home appliances. Commercial director (post-carve-out, PE investor ELBE). ERP: MS Dynamics NAV.

  • Introduced ERP & consolidated for investor reporting
  • Negotiated with major customers, managed social plans during closures
  • Supported insolvency process & sale
  • Established central IT/finance platform
  • Successfully completed restructuring & sale
Feb 2010 - Jan 2011
1 year
Paris, France

Interim CFO

Medici Arts b.v.

Classical film production & distribution, US media group. Restructuring & cash flow management as needed.

  • Guaranteed liquidity through daily planning & creditor negotiations
  • Restructuring and transfer of rights
  • Due diligence and sale preparation of multiple units
  • Continued operations during a continuously critical phase
  • Successfully completed sale preparation
Oct 2009 - Jan 2010
4 months
Ludwigshafen, Germany

Consultant

Pfalzwerke AG

Energy supplier. Cost optimization in purchasing and fleet management. ERP: SAP R/3.

  • Analyzed and identified savings potentials in overhead costs
  • Presented results to management
  • Uncovered significant optimization opportunities in purchasing and fleet management
Oct 1996 - Mar 2009
12 years 6 months
Cologne, Germany

Finance Director

Taschen GmbH

Publishing / media / retail. Group-wide head of finance, 150 employees, 9 entities. ERP: MS Dynamics NAV.

Objective: Replace various legacy systems with a unified ERP system. Roll out to 9 entities and build global consolidation and management information systems (MIS).

  • Implemented NAV ERP system in 7 countries
  • Established group consolidation and MIS
  • Responsible for treasury, controlling, HR and M&A
  • Shortened closing cycle from D7 to D3
  • Established global financial integration & reporting
  • Supported and safeguarded business development from a finance perspective
  • Selected and implemented Microsoft Dynamics NAV
  • Rolled out in Germany, USA, Spain, Japan and others
  • Integrated finance, logistics, CRM and e-commerce modules
  • Introduced consolidation and MIS tools
  • Fully integrated ERP in a global group structure
  • Shortened closing cycle from D7 to D3 (flash P&L at D1)
  • High acceptance and data quality across all functions
Sep 1995 - Jul 1996
11 months
Berlin, Germany

Consultant

Bertelsmann / GrundyUfa TV Produktions GmbH

TV production / media. Financial management, project assignment. individual.

  • Set up contract database and budget planning
  • Optimized marketing, merchandising and music production
  • Increased contract transparency and improved budget control
Mar 1994 - Mar 1995
1 year 1 month
Düsseldorf, Germany

Consultant

Droege & Comp.

Management consulting. Advisor for process optimization.

  • Projects to reduce costs and increase efficiency in trade, manufacturing and banking
  • Achieved measurable cost reductions in several assignments
Jan 1987 - Dec 1988
2 years
Cologne, Germany

Student Assistant

Universität Köln

Germany

Intern

Ford

Milwaukee, United States

Intern

Harley-Davidson

Germany

Intern

Mannesmann

Cologne, Germany

Intern

Stadtsparkasse Köln

Germany

Intern

Thyssen

Summary

Experienced CFO and interim finance executive with over 30 years of responsibility in mid-sized and international corporate structures. Specialized in restructuring, carve-outs, post-merger integration, IFRS/US GAAP, treasury, and ERP rollouts. Supports owners, investors, and founders in setup, transformations, exit preparation, and digitalization - in companies from €0 to €25 billion in revenue.

Languages

German
Native
English
Advanced
French
Advanced
Spanish
Intermediate

Education

Oct 1993 - Jun 1993

University of Cologne

PhD · Economics · Cologne, Germany

Oct 1990 - Jun 1990

University of Münster & University of Cologne

Diploma in Business Administration · Business Administration · Cologne, Germany

Certifications & licenses

CINA IFRS Certificate

CINA

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions