Rüdiger Tiedemann - Interim Head of Finance

Q: Where is Rüdiger based?

Rüdiger is based in Cologne, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Rüdiger speak?

Rüdiger speaks the following languages: German (Native), English (Advanced), French (Advanced), Spanish (Intermediate) .

Q: How many years of experience does Rüdiger have?

Rüdiger has at least 29 years of experience. During this time, Rüdiger has worked in at least 21 different roles and for 28 different companies . The average length of individual experience is 1 year and 1 month . Note that Rüdiger may not have shared all experience and actually has more experience.

Q: What is Rüdiger's latest experience?

Rüdiger's most recent position is Finance Director at PSG Germany GmbH, a Dover company .

Q: What companies has Rüdiger worked for in recent years?

In recent years, Rüdiger has worked for PSG Germany GmbH, a Dover company , Schokoladenmuseum Köln GmbH , Alpha Trains Europa GmbH , CMR CureDiab Metabolic Research GmbH , and Macaw netzkern GmbH .

Q: Which industries is Rüdiger most experienced in?

Rüdiger is most experienced in industries like Media and Entertainment , Retail , and Manufacturing . Rüdiger also has some experience in Biotechnology , Pharmaceutical , and Professional Services .

Q: Which business areas is Rüdiger most experienced in?

Rüdiger is most experienced in business areas like Finance , Accounting , and Human Resources . Rüdiger also has some experience in Audit , Strategy , and Business Intelligence .

Q: Which industries has Rüdiger worked in recently?

Rüdiger has recently worked in industries like Biotechnology , Pharmaceutical , and Advertising .

Q: Which business areas has Rüdiger worked in recently?

Rüdiger has recently worked in business areas like Finance , Accounting , and Audit .

Recommended expert

Cologne, Germany

Check rate

Experience

Sep 2025 - Mar 2026

7 months

On-site

Finance Director

PSG Germany GmbH, a Dover company

B2B pumps for chemical, life science, semiconductors, etc. Stabilized and optimized the finance function: closing, budgeting, reporting, audits, SOX, and PMI.

Apr 2025 - Aug 2025

5 months

Head of Finance

Schokoladenmuseum Köln GmbH

Led finance & HR for 120 employees and 4 direct reports
ERP: DATEV
Optimized accounting, cash, and payment processes
Implemented modern HR software including AI features
Restructured internal reporting including cost centers
Increased automation in HR and finance
Improved data quality and decision-making for management

Nov 2024 - Feb 2025

4 months

Senior Accounting Specialist

Alpha Trains Europa GmbH

Leasing of rail vehicles, ERP: MS Dynamics 365
Accounting for complex syndicated loans under IFRS 9
Operational accounting for two subsidiaries in Italy and the UK
Operational support for the CFO

Oct 2024 - Present

1 year 8 months

CFO (part-time)

CMR CureDiab Metabolic Research GmbH

Biotech/pharma start-up with 4 employees, ERP: DATEV
Set up finance processes with external accounting
Created business plan and seed pitch deck
Aligned finances with medical management
Established investor-ready reports and financial planning
Implemented an efficient structure for early-stage financing

Nov 2023 - Sep 2024

11 months

Finance Manager / Senior Expert

Macaw netzkern GmbH

Digital agency / online marketing, ERP: Unit4 and MS Dynamics NAV
Headed finance projects in Germany with 6 staff
Prepared multi-year financial statements for three entities
Built monthly reports in LucaNet and Power BI
Cleaned up balance sheets including provisions and intercompany items
Restored closing capability and audited financial statements
Established standardized group-level reporting

Feb 2023 - Jun 2023

5 months

Finance Consultant

Egon Zehnder AG

HR services – Executive Search, Leadership Advisory, ERP: Oracle NetSuite
Finance process optimization across various locations
Implementation of purchase orders
Establishment of optimized processes

Apr 2022 - Jan 2023

10 months

CFO

Safran Data Systems GmbH

Aerospace, part of the French Safran Group, 75 employees, ERP: Infor M3
Responsibility for fast close & reporting, locally and internationally
Optimization of internal control systems (ICS)
Transition of reporting tools from Hyperion to SQL
Shortened closing cycles and improved group communication
Strengthening of internal control mechanisms

Aug 2021 - Mar 2022

8 months

Head of Accounting

next e.GO Mobile SE

Automotive start-up, approx. 300 employees, ERP: eGecko / Penta
Set up group accounting for IPO preparation
IFRS conversion including IFRS 15/16
Digitization of the purchase-to-pay process
IFRS-compliant closing within four months
Achieved audit readiness for IPO preparation

Mar 2021 - Feb 2022

1 year

Head of Finance / CFO

T-Balance Therapeutics GmbH

Biotechnology start-up, ERP: DATEV Unternehmen Online
Established budget and cash management
Developed pitch materials and investor reports
Successfully prepared and supported the seed round
Created financial transparency for investors

Oct 2020 - Jul 2021

10 months

Head of Accounting / LCA

KVP Pharma + Veterinär GmbH

Animal pharmaceuticals, carve-out from Bayer/Elanco, ERP: SAP R/3
Took over accounting, treasury, and reporting in the carve-out
Implementation of SOX test plans
Optimization of P2P/O2C/R2R processes
Liaison between Bayer and Elanco during the exit
Successful SAP migration and achieved international SOX audit readiness

Oct 2019 - Sep 2020

1 year

Senior Expert Finance

Interxion GmbH

Data centers / IT infrastructure, ERP: SAGE, Reporting: HFM
Fixed asset accounting, CAPEX and IFRS 16
Reporting and SOX documentation for Digital Realty
Support of US reporting and closing processes
Implemented and automated standardized reporting structures
Successful IFRS-compliant financial statements

Aug 2019 - Sep 2019

2 months

Senior Controlling Expert

Groupe SEB

Home appliances / consumer goods, ERP: SAP R/3
Short-term project in commercial controlling
Analysis of invoice terms (approx. 15,000 line items)
Reconciliation of entries, contracts and Excel analyses
Resolution of complex legacy items
Improved traceability of provisions

Oct 2018 - Apr 2019

7 months

Senior Finance & Controlling Expert

Jack Wolfskin

Outdoor clothing and equipment, group revenue €350 M, ERP: MS Dynamics NAV, SAP, AX
Controlling of participations, OPEX, CAPEX, forecast and budget for 1–3 years
Operational reports for owners and management
Participation in group consolidation (13 entities), IFRS 15/16, introduction of fast close
Implementation of BI systems for sales controlling and ERP preparation
Restructuring after acquisition by Callaway Golf with US GAAP/IFRS reconciliations
Improved reporting quality and speed
Successful conversion to new P&L/balance sheet structure and chart of accounts

Jun 2018 - Sep 2018

4 months

Co-CFO / Senior Finance Expert

New Flag GmbH

FMCG / personal care, revenue €50 M, ERP: MS Dynamics NAV
Finance & controlling projects including BI systems and group consolidation (7 companies)
Setup of P&L by products, key accounts and sales channels
Analysis of tax filings vs. payments, reclassifications and pricing
Implementation of robust structures for reporting and performance 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 revenue €3 B, ERP: QAD, HFM
Head of finance and controlling in Mulhouse including HR, payments and accounting
US reporting, budget/forecast, letters of credit and creditworthiness
Setup of a shared service center in Lindau and outsourcing payroll in France
SOX compliance and internal audits
Stabilization and integration of the finance function after site migration
Significant improvement in compliance and process quality

Apr 2016 - Jul 2016

4 months

Finance Manager

Harman Connected Services GmbH

Automotive software (connected car), entity revenue EUR 10 million, ERP: MS Dynamics AX
Annual financial statements 2014/2015 and HR/payroll audit
Support for expatriates and development of tax optimizations
Audit-compliant closings despite on-site gaps
Stabilization of HR and tax processes during the interim period

Feb 2016 - Feb 2016

1 month

Finance Consultant

Erasco/Continental Foods GmbH

Food / FMCG, PE (CVC), entity revenue EUR 120 million, ERP: SAP R/3
Analysis of sales processes, key account controlling and campaign tracking
Improvement of sales controlling structure

Jun 2015 - Nov 2015

6 months

Münster, Germany

Interim Treasury Manager

COMPO Expert GmbH

Chemicals / premium fertilizers, ERP: SAP R/3
Set up the treasury function after carve-out by PE Triton
Implemented factoring within four weeks
Developed liquidity planning and cash pooling
Negotiated trade credit insurance and payment processes
Rapid liquidity assurance and structured treasury processes across 20 entities

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
Operational finance management and controlling
Monthly reporting to HQ including variance analyses
Ensured transition of responsibilities after the sudden departure of the finance director

Jan 2015 - Dec 2016

2 years

Cologne, Germany

Finance/Controlling Lecturer

Fresenius / ISM

Teaching IFRS, group accounting and international controlling (DE/EN)
Developed practice-oriented course modules for students at international partner universities

Apr 2014 - Sep 2014

6 months

Vienna, Austria

Finance Manager

DIC Europe GmbH

Specialty chemicals, ERP: MS Dynamics NAV and Magnitude
Production controlling at the new plant in Vienna
Reporting to a US group using Magnitude
Optimization of finance and administrative processes
Establishment of international reporting structures and fast close

Feb 2013 - Dec 2013

11 months

Braunschweig, Germany

Head of Controlling

Essilor GmbH

Medical technology / eyeglass lenses, ERP: Oracle and NAV
Development of a Cubeware BI system for revenue and gross profit
Implementation of QlikView sales reporting
Business partnering with sales, HR, and SCM
Integration and automation of planning and reporting
Increased transparency of customer and product margins

Jan 2011 - Nov 2012

1 year 11 months

Mettmann, Germany

CFO

TechnikService24 GmbH

Aftersales service for household appliances, ERP: MS Dynamics NAV
Commercial management after post-carve-out by PE investor ELBE
ERP implementation and consolidation for investor reporting
Negotiations with key accounts and social plans during closures
Support during insolvency and successful sale
Establishment of a central IT/finance platform

Feb 2010 - Jan 2011

1 year

Berlin, Germany

Interim CFO

Medici Arts b.v.

Classic film production & distribution, US media group
Restructuring and liquidity management
Daily liquidity planning and creditor negotiations
Restructuring and transfer of rights
Due diligence and sale preparation of multiple units
Continuation of operations and successful sale preparation

Oct 2009 - Jan 2010

4 months

Ludwigshafen, Germany

Consultant

Pfalzwerke AG

Energy supplier, ERP: SAP R/3
Cost optimization in procurement and fleet
Analysis and identification of cost saving potentials in overheads
Presentation of results to management
Identification of significant optimization opportunities

Oct 1996 - Mar 2009

12 years 6 months

Cologne, Germany

Finance Director

TASCHEN GmbH

Publishing / Media / Retail, ERP: MS Dynamics NAV
Group-wide financial management with 150 employees in 9 companies
Implementation of the NAV ERP system in seven countries
Setup of group consolidation and MIS
Responsible for treasury, controlling, HR and M&A
Reduced closing cycle from D7 to D3
Established global financial integration and reporting

Sep 1995 - Jul 1996

11 months

Berlin, Germany

Consultant

GrundyUfa TV Produktions GmbH

TV production / Media
Project-based commercial management
Setup of contract database and budget planning
Optimization of 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
Process optimization in trade, manufacturing and banking
Cost reduction and efficiency improvement projects
Achieved measurable cost reductions in multiple assignments

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Retail, Media and Entertainment, Manufacturing, Biotechnology, Pharmaceutical, and Professional Services.

Retail

Media and Entertainment

Manufacturing

Biotechnology

Pharmaceutical

Professional Services

Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Finance, Accounting, Human Resources, Audit, Strategy, and Business Intelligence.

Finance

Accounting

Human Resources

Audit

Strategy

Business Intelligence

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 with set-up, transformations, exit preparation, and digitization – in companies with revenues from €0 to €25 billion. 2 years in business consulting and projects, 13 years as CFO etc. in owner-led mid-sized companies/hidden champions, and 16 years as interim.

Skills

Core Competencies

Fp&A, Cash Flow Management, Treasury, Audit, Consolidation
M&A, Carve-Outs, Pmi, Ipo Readiness, Pe Reporting
Restructuring, Transformation, Shared Services

Accounting Standards

Hgb, Ifrs, Us Gaap, Local Gaaps (De/Uk/Fr/Es/Jp/Cn)

Systems And Tools

Erp: Sap R/3, Microsoft, Datev, Oracle, Sage, Infor, Qad, Egecko
Bi: Lucanet, Power Bi, Hfm, Cubeware, Qlikview, Professional Planner
Hr/Payroll: Personio, Datev Payroll
Office: Ms Office Suite Incl. Excel (Pivot, Powerquery), Powerpoint, Word, Outlook

Languages

German

Native

English

Advanced

French

Advanced

Spanish

Intermediate

Education

Oct 1990 - Jun 1993

University of Cologne

PhD · Economics · Cologne, Germany

Oct 1984 - Jun 1990

Universities of Münster & Cologne

Diplom-Kaufmann · Business Administration · Cologne, Germany

Certifications & licenses

CINA IFRS Certificate

Statistics

Experience

Total positions 28

Experience in Retail 14 y

Avg length 1 y 2 m

Longest experience 12 y 5 m

Global Experience

Countries worked in 3 (Germany, France, Austria)

Primary country Germany

Expertise

Recent roles Finance Director, Head of Finance, Senior Accounting Specialist

Main industries Retail, Media and Entertainment, Manufacturing

Main business areas Finance, Accounting, Human Resources

Qualifications

Highest degree Doctorate

Certifications earned 1

Profile

Created

May 2025

Last Update

May 2026

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Frequently asked questions

Have questions? Find more information here.

Where is Rüdiger based?

Rüdiger is based in Cologne, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Rüdiger speak?

Rüdiger speaks the following languages: German (Native), English (Advanced), French (Advanced), Spanish (Intermediate).

How many years of experience does Rüdiger have?

Rüdiger has at least 29 years of experience. During this time, Rüdiger has worked in at least 21 different roles and for 28 different companies. The average length of individual experience is 1 year and 1 month. Note that Rüdiger may not have shared all experience and actually has more experience.

What roles would Rüdiger be best suited for?

Based on recent experience, Rüdiger would be well-suited for roles such as: Finance Director, Head of Finance, Senior Accounting Specialist.

What is Rüdiger's latest experience?

Rüdiger's most recent position is Finance Director at PSG Germany GmbH, a Dover company.

What companies has Rüdiger worked for in recent years?

In recent years, Rüdiger has worked for PSG Germany GmbH, a Dover company, Schokoladenmuseum Köln GmbH, Alpha Trains Europa GmbH, CMR CureDiab Metabolic Research GmbH, and Macaw netzkern GmbH.

Which industries is Rüdiger most experienced in?

Rüdiger is most experienced in industries like Media and Entertainment, Retail, and Manufacturing. Rüdiger also has some experience in Biotechnology, Pharmaceutical, and Professional Services.

Which business areas is Rüdiger most experienced in?

Rüdiger is most experienced in business areas like Finance, Accounting, and Human Resources. Rüdiger also has some experience in Audit, Strategy, and Business Intelligence.

Which industries has Rüdiger worked in recently?

Rüdiger has recently worked in industries like Biotechnology, Pharmaceutical, and Advertising.

Which business areas has Rüdiger worked in recently?

Rüdiger has recently worked in business areas like Finance, Accounting, and Audit.

What is Rüdiger's education?

Rüdiger holds a Doctorate in Economics from University of Cologne and a Master in Business Administration from Universities of Münster & Cologne.

Does Rüdiger have any certificates?

Rüdiger has 1 certificate: CINA IFRS Certificate.

What is the availability of Rüdiger?

Rüdiger is immediately available full-time for suitable projects.

What is the rate of Rüdiger?

Rüdiger's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.