Olaf Martens - Senior Interim Head Of Finance, Hamburg

Recommended expert

Hamburg, Germany

Check rate

Experience

Jun 2025 - Present

1 year 3 months

Hybrid

Interim Manager Head of Finance

Euromobil GmbH

Bridging the Head of Finance position until it was filled again
Use of SAP R/3
Hybrid working model
10% English

Jan 2025 - Mar 2025

3 months

Interim Manager Finance Controlling

TimberTec GmbH

Implementation of cost center budgets
Change of the ERP system to GUS-OS
Implementation of treasury
Preparation of annual financial statements under HGB
Leadership and stabilization of a team (6 employees)
Use of GUS-OS and LucaNet
Hybrid working model
40% English

May 2024 - Dec 2024

8 months

Interim Manager Finance Controlling

Iptor Germany GmbH

Implementation of budgets and forecasts
Transfer pricing project for integration into the group
Introduction of IFRS via shared service center after acquisition
Legal entity reduction project
Reduction of receivables by 78%
Leadership and stabilization of the team (6 employees)
Use of Diamant and DC1
Hybrid working model
60% English

Apr 2024 - Apr 2024

1 month

Head of Finance

Indivumed Services GmbH

Integration into group structure
Preparation of annual financial statements under HGB and IFRS including contact with auditors
Treasury management
Preparation of budgets and planning
Support with customizing SAP client setup
Management of a team (2 employees)
Use of SAP
Mainly on site
90% English

Feb 2023 - Mar 2024

1 year 2 months

Interim Manager Finance

Indivumed GmbH

Carve-out and ERP change due to company sale
Project work for the complete setup of accounting in Germany
Support for complete accounting and financial planning
Preparation of annual financial statements under HGB and IFRS
Consolidation for Italy, Spain and Japan
Use of SAP
Mainly on site

Jan 2022 - Jan 2023

1 year 1 month

Interim Manager Finance

METRO-Markets GmbH

General ledger accounting
Implementation and expansion of monthly closing processes according to HGB and IFRS
Training of new employees
Use of SAP
Remote
95% English

Mar 2021 - Jan 2022

11 months

Interim Manager Finance

SPORTFIVE Germany GmbH

Projects in accounts receivable and accounts payable
Account reconciliations
Consolidation of various acquired companies
Preparation of annual financial statements according to HGB
Use of SAP and LucaNet
Remote

Feb 2021 - Sep 2021

8 months

Interim Manager Finance

Fabulously Old Things

Complete accounting for retail store
Use of Excel
95% English

Feb 2021 - Aug 2021

7 months

Remote

Interim Manager Accounts Payable

ENERCON GmbH

Accounts payable accounting
Use of SAP via Citrix
Fully remote

Oct 2020 - Feb 2021

5 months

Remote

Interim Manager Finance

SPORTFIVE Germany GmbH

IC account reconciliation and clearing
Use of SAP and LucaNet
On site and remote

Aug 2020 - Present

6 years 1 month

Self-employed

OlafMartens FiCo-Services

Mar 2020 - Jul 2020

5 months

Project

Familienfokussierte Zeit

Revision of the 5-year plan

Jan 2012 - Nov 2019

7 years 11 months

Virum, Denmark

Manager Financial Planning & Analysis (FP&A) and Head of Product Central Europe Hamburg

NOVASOL A/S

Preparation of budgets and forecasts
Contract drafting for projects
Personnel management, payroll, and recruitment
Support during tax audits
Recruitment of holiday property owners by leading local specialist teams (seven countries)
Administrative tasks
Execution of acquisitions, integrations, incorporations, restructurings, and liquidations

Results:

Development and implementation of a results-driven and product-specific monitoring and evaluation tool
Redesign of project contracts with a focus on VAT aspects
Digitization of personnel management
Expansion of project focus in purchasing, tripling revenue

Apr 2002 - Dec 2011

9 years 9 months

Hamburg, Germany

Head of Accounting

NOVASOL A/S

Management of all accounting tasks across all German entities
Preparation of annual financial statements according to HGB and IFRS
Support during tax and business audits
Planning and controlling incl. budget preparation, forecast, and cash flow planning
Implementation of restructuring measures related to VAT
Personnel management, payroll, and recruitment as well as support during tax audits

Results:

Completion of monthly account reconciliations
Responsibility for implementing compliance guidelines (SOX)
Introduction of a forecast system to ensure regular cost control across all departments in Germany

Jul 2001 - Jan 2002

7 months

Hamburg, Germany

Group Head of Controlling

Berendsohn AG

Jan 2000 - Jul 2001

1 year 7 months

Hamburg, Germany

Controller

Solution42 AG / Portal Software GmbH

Sep 1997 - Jan 2000

2 years 5 months

Hamburg, Germany

Accounting Team Lead

Car Professional Management GmbH

Complete transfer of accounting from Munich to Hamburg
Integration into the new owner's ERP system
Technical and disciplinary management of two employees

Jan 1993 - Sep 1997

4 years 9 months

Hamburg, Germany

Accounts Receivable and Financial Accountant

Walter Bau-AG

Sep 1991 - Jan 1993

1 year 5 months

Hamburg, Germany

Commercial Manager, BS Construction Equipment Service branch

Walter Bau-AG

May 1991 - Sep 1991

5 months

Hamburg, Germany

Accounts Payable Accountant

Walter Bau-AG

Jun 1989 - Jan 1990

8 months

Hamburg, Germany

Construction Clerk for Joint Ventures

Walter Bau-AG

Industry Experience

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

Experienced in Tourism, Real Estate, Construction, Professional Services, Automotive, and Information Technology.

Tourism

Real Estate

Construction

Professional Services

Automotive

Information Technology

Business Area Experience

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

Experienced in Accounting, Finance, Audit, Human Resources, Operations, and Strategy.

Accounting

Finance

Audit

Human Resources

Operations

Strategy

Summary

As an interim manager in FINANCE and CONTROLLING with decades of professional and leadership experience, I take on leadership roles and projects or work hands-on. In doing so, I bring structure and clarity to all finance areas - reliably and pragmatically to noticeably relieve my clients.

Whether it is a short-term vacancy, a complex system change, or challenging projects - I make sure in a team-oriented and needs-based way that FINANCE, as the backbone of your company, delivers reliable numbers and that decisions are well founded.

Skills

Core Areas Of Expertise

Accounting
Controlling
Projects
Human Resource Management
Fp&A
Product Development
Commercial Business Management
Securing Of Financing
M&A
Operational And Tax Audits
Liquidity Management, Treasury And Cash Planning
Budget Control & Forecast Preparation

Additional Qualifications / It Skills

As400
Bankline On Autobahn
Citrix
Dc1
Gus-Os
Lucanet
Microsoft Office: Word, Excel And Outlook
Multicash
Powerpoint
Sage Classic Line
Sap Fi/Co
Sfirm
Tagetik
Communication Via Skype
Communication Via Ms Teams
Communication Via Zoom
Communication Via Gotomeeting
Communication Via Slack
Communication Via Webex

Languages

German

Native

English

Advanced

Education

Oct 1991 - Nov 1996

AKAD Bildungsgesellschaft

Dipl.-Betriebswirt (FH) · Business Administration, Human Resources and Organizational Management · Stuttgart, Germany

Aug 1986 - Jun 1989

Walter Bau-AG

Industrial Clerk (IHK) · Hamburg, Germany

Höhere Handelsschule

Subject-specific higher education entrance qualification · Hamburg, Germany

Certifications & licenses

Comparison of HGB Vs. IFRS

KPMG

Ihk training withholding tax usa

VAT Update

nesemann & grambeck

Posting Techniques in the Group

LucaNet Academy

Incident Response Retainer

GDATA

International Accounting

MANAGER INSTITUT

SAP user certification in financial accounting

Pa11 training payroll accounting

sage

The minimum wage in practice

Deloitte.

Sage Classic Line

sage KHK

Internal Auditor ISO Certification

BaaN

Statistics

Experience

Total positions 21

Experience in Tourism 17.5 y

Avg length 2 y

Longest experience 9 y 8 m

Global Experience

Countries worked in 2 (Germany, Denmark)

Primary country Germany

Expertise

Recent roles Interim Manager Head of Finance, Interim Manager Finance Controlling, Head of Finance

Main industries Tourism, Real Estate, Construction

Main business areas Accounting, Finance, Audit

Qualifications

Certifications earned 11

Profile

Created

August 2025

Last Update

August 2026

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Frequently asked questions

Have questions? Find more information here.

Olaf is based in Hamburg, Germany.

Olaf speaks the following languages: German (Native), English (Advanced).

Olaf has at least 35 years of experience. During this time, Olaf has worked in at least 16 different roles and for 16 different companies. The average length of individual experience is 2 years and 8 months. Note that Olaf may not have shared all experience and actually has more experience.

Based on recent experience, Olaf would be well-suited for roles such as: Interim Manager Head of Finance, Interim Manager Finance Controlling, Head of Finance.

Olaf's most recent position is Interim Manager Head of Finance at Euromobil GmbH.

In recent years, Olaf has worked for Euromobil GmbH, TimberTec GmbH, Iptor Germany GmbH, Indivumed Services GmbH, and Indivumed GmbH.

Olaf is most experienced in industries like Tourism, Real Estate, and Construction. Olaf also has some experience in Professional Services, Automotive, and Information Technology.

Olaf is most experienced in business areas like Accounting, Finance, and Audit. Olaf also has some experience in Human Resources, Operations, and Procurement.

Olaf has recently worked in industries like Professional Services, Retail, and Manufacturing.

Olaf has recently worked in business areas like Finance and Accounting.

Olaf attended AKAD Bildungsgesellschaft for Business Administration, Human Resources and Organizational Management.

Olaf has 11 certificates. Among them, these include: Comparison of HGB Vs. IFRS, Ihk training withholding tax usa, and VAT Update.

Olaf is immediately available for suitable projects.

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Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.

Average rates for similar positions

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Daily rate avg. 899 €

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Median rate 896 €

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.

Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.