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Irmgard Drey

Selfemployed - Interims Management in M&A Environments

Irmgard Drey
Dachau, Germany

Experience

Aug 2025 - Present
7 months

Selfemployed - Interims Management in M&A Environments

Irmgard Drey e.K.

  • Consulting and implementation in the areas of human resources, finance, and IT for medium-sized companies in the telecommunications, plant engineering, real estate, metal processing, pharmaceutical, and energy supply sectors
  • Setting up and redesigning HR departments—specifically in carve-out or merger environments
  • Management coaching and interim HR management
  • HR IT: SAP HCM implementation of various requirements, compensation management, works agreements, outsourcing, payroll, budget planning/HR controlling
  • Centralised support and advice to management on HR strategy and end-of-year reporting processes
  • Developing company pension schemes, building reporting tools, and generating HR/payroll reports
  • Implementing the Company Pensions Strengthening Act and designing corporate frameworks
  • Developing coordinated training programs for departments and department managers
  • Junior manager coaching
  • Compensation/benefits, recruiting, interviews, search
  • Introducing time management with SAP HCM, process optimisation for time tracking, general data protection regulation document management, etc.
  • Digitisation project for tax audits, such as personnel files and expense compensation for employees in the construction industry
  • Cost reduction projects to improve operational efficiency
  • Leading negotiations with works councils and economic committees
  • Redesigning compensation concepts in personnel management—fit for the future.
Jan 2025 - Oct 2025
10 months
Nuremberg, Germany
Hybrid

Global HR Transformation & PMI / Carve-out - Interim Senior HR / Change & PMI Lead

(Industry / Technology)

Tasks

  • Leading HR workstreams in multiple post-merger and carve-out projects (EU/international)
  • Harmonising contracts, company agreements, compensation and HR policies
  • Providing sparring support to the board, management, legal, and people & culture teams Results / KPIs
  • Harmonised over 85% of all HR regulations within 9 months
  • Reduced HR-related PMI risks by over 40% (audit & legal findings)
  • On-time PMI implementation without delaying the business go-live
  • Acceptance rate of new HR standards among leaders over 90%
Mar 2024 - Sep 2025
1 year 7 months
Moosburg, Germany
Hybrid

Post-Merger Integration HR - Interim HR & Payroll Transformation Lead

Tasks

  • Reorganising HR and payroll support structures
  • Introducing integrated time management
  • Coordinating with the parent company
  • Recruiting specialists
  • Budget planning and succession planning

Results / KPIs

  • Stabilised payroll within 3 months
  • Works agreements
  • Introduced transparent time management for over 20 employees
  • Works council approval of all new models without escalation
Nov 2023 - Apr 2024
6 months
Frankfurt, Germany
Hybrid

Compensation & Benefits International - Interim C&B / HR Systems Lead

(Pharma / Biotech)

Tasks

  • Integrating international C&B structures into SAP HCM
  • Building budget, forecast, and reporting logic
  • Audit-proof documentation

Results / KPIs

  • International comparability of compensation data for 100% of target roles
  • Shortened budget and forecast cycles by ~25%
  • Successful internal and external audits without findings
Aug 2023 - Feb 2024
7 months
Nuremberg, Germany
On-site

HR Systems & Payroll Excellence - Interim SAP HCM / Payroll Expert

Tasks

  • Optimising reporting requirements (DEÜV, A1, social security, international)
  • Harmonising master data and wage types
  • Quality assurance after system updates Results / KPIs
  • Reduced reporting error rate to under 0.3%
  • Cut manual corrections by over 50%
  • Stable payroll processes after releases from the first payroll run
May 2023 - Feb 2024
10 months
Siegen, Germany
Hybrid

Global HR Shared Services Build-out - Interim Head of HR Shared Services

(Industriekonzern)

Responsibilities

  • Set up and lead an international HR service center
  • Manage external payroll providers (e.g., ADP)
  • Implement governance, SLA, and reporting structures Results / KPIs
  • Established an SSC for over 6 countries / more than 5,000 employees
  • Reduced payroll cycle times by ~30%
  • Achieved provider SLA compliance >98%
  • Saved about 20% annually in HR operating costs
Nov 2022 - Present
3 years 4 months
Munich, Germany

Founder, Managing Director

TripleCar GmbH

  • Spearheaded the expansion of service lines encompassing vehicle and real estate trading, international vehicle rentals, hospitality, and business consulting, aligning operational objectives across strategy, personnel, systems, and coaching functions
  • Built payroll-system for the rapid expansion of private hire transport operations in 2 new expanison markets
  • Led 40 employees in various sectors of the secondary automotive transport market
  • Increased revenues year on year expanding self-drive rentals to 3 new countries within the EU and 50+ Vehicles on the road
  • Secured key partnerships with international mobility providers and financial institutions, enabling expansion of service offerings and solidifying TripleCar GmbH's position within the European mobility and real estate sectors.
Jan 2022 - Dec 2025
4 years
Hybrid

Payroll & HR Transformation - Interim Head of Payroll / HR Operations

(Energie / Infrastruktur)

Responsibilities

  • Stabilize error-prone SAP HCM payroll processes
  • Ensure year-end closings, audits, and special payroll runs
  • Integrate time management and collective bargaining rules Results / KPIs
  • Reduced payroll error rate from over 6% to under 0.5%
  • 100% on-time payroll within three payroll cycles
  • Successful external audits with no findings
  • Significant reduction in escalations from business units (-60%)
Aug 2020 - Dec 2022
2 years 5 months
Roth, Germany
On-site

Carve-out & Restructuring - Interim HR Director / Payroll Lead

Responsibilities

  • HR-side separation of multiple entities including SAP HCM separation
  • Introduction of new working time and shift models
  • Social plan, transfer company, staff reduction Results / KPIs
  • Successful carve-out with no interruption of payroll
  • Legally compliant handling of over 100 transfer and severance cases
  • Introduction of new shift models for more than 1,000 employees
  • Led a team of 14 in the HR shared service center
Jan 2019 - Nov 2020
1 year 11 months
On-site

Audit Support & HR System Landscape Build-out - Interim HR Consultant

Responsibilities

  • Support social security and tax audits
  • Build a new HR system landscape (SAP system transformation)
  • Roll out new time management processes Results / KPIs
  • Error-free audit execution
  • Successful SAP transformation with zero downtime
  • Fully integrated, automated, and error-free time management
Jul 2018 - Sep 2019
1 year 3 months
Munich, Germany
On-site

Payroll Reorganization & Leadership Coaching - Interim Payroll Lead / HR Coach

Responsibilities

  • Stabilized payroll after leadership change
  • Coached new HR and payroll leaders
  • SAP customizing, testing, regulatory reporting

Results / KPIs

  • Successfully handed over to new leadership after 6 months
  • Established sustainable backup and knowledge-sharing structures
  • Increased team satisfaction (internal feedback) by >30 %
Oct 2017 - Aug 2019
1 year 11 months
Munich, Germany
On-site

Reorganization & Team Leadership for HR Business Partners and Payroll - Interim HR Business Partner and Payroll Lead

Telecommunications

Responsibilities

  • Compensation and benefits management
  • Filling leadership positions
  • Strategic realignment of departments
  • Led teams in 2 departments

Results / KPIs

  • Error-free processing of >1,500 payroll cases
  • Separation support
  • BEM (company integration management) interviews
  • Leadership coaching
  • 100% implementation of digital personnel file
Mar 2000 - Present
26 years

CEO / Financial Management

Mac Cicero GmbH

  • B2B - advertising agency and general advertising services
  • PR-Branding in the pharmaceutical industry especially for congresses and fairs
  • Directed financial planning and resource allocation initiatives to sustain business growth in the competitive pharmaceutical sector, aligning fiscal strategies with long-term organizational objectives.
May 1998 - Present
27 years 10 months

Entrepreneur / Managing Director

Irmgard Drey e.K.

  • General management consulting and related services, particularly in the areas of human resources, strategy, systems, consulting, and coaching
  • Directed operational improvements by restructuring internal workflows, streamlining project management processes, and guiding cross- department collaboration to support sustainable organizational growth in different industries.
Mar 1993 - Jun 2017
24 years 4 months
Ingolstadt, Germany

Payroll-Accounting Management

Media-Saturn-Holding GmbH

  • Assumed management responsibility for payroll accounting for ca. 3,500 individual accounting cases with 4 employees under management
  • Implemented and introduced an international accounting software SAP R/3 with data transfer from legacy systems
  • Took over the billing and payroll-accounting for Saturn Electro- Handelsgesellschaft mbH with approx. 1000 billing cases
  • Established payroll systems in the expansion countries and led the introduction of the SAP HR modules OM, PA, PY and PT
  • Expansion of national personnel administration and accounting into an internationally operating Competence Center (CC) HRIS with the following structure: National service center "Accounting" with the main tasks of file management, time management, personnel data maintenance, data maintenance for organizational management, preparation of monthly accounting Service, process and product management Accounting and special support "Top management both nationally and internationally"
  • HR-Controlling Business Partner - Country Support
  • Developed international HR payroll policy with communication concept for policy competence
  • Business process management
  • Business development: developed and implemented professional excellence in the HR Services & Processes department; led the development of internal communication and work platform for HR-PY managers
  • International project management with quality and risk management
  • Led the Post-Merger-Integration of HR Processes and Systems
  • Led specialist team for Due Diligence of HR Systems for mergers and acquisitions
  • Organised and coordinated workshops for human resources strategy development
  • Reengineering of business process for efficient human resource management
  • Intra-company change management consultation
  • Great Place to Work – managed and coordinated the development of an information and communication concept
  • In cooperation developed and introduced the HR-IT roadmap
  • Establishment and expansion of an international HR controlling agency
  • Developed and implement strategic and operational HR reports
  • Introduction of SAP BW with international rollout
  • Consolidated international payroll and personnel administration processes, ensuring seamless alignment with regulatory frameworks across multiple expansion markets.
Jan 1992 - Feb 1993
1 year 2 months
Munich, Germany

Authorized Signatory

Rheinhold & Mahla Unterstützungskasse GmbH

  • Administered legal and financial obligations as an authorized signatory for the in-house support fund, ensuring accurate documentation and regulatory adherence during fund transactions and stakeholder communication.
May 1991 - Feb 1993
1 year 10 months
Munich, Germany

Human Resources Department - Taskforce | IT-Coordinator

Rheinhold & Mahla AG

  • Communicative bridge between employees and payroll-management
  • Active member of internal cost committee for the reduction of general administrative costs
  • Statistics and ad-hoc reporting for general labor cost oversight
  • Support fund management for in-house retirement fund
  • Prepared and managed pension commitments for unionized and senior employees
  • Processed due diligence for employee construction loans
  • Procurement and processing of information for annual / year-end reporting to stakeholders
  • Procurement and implementation of new personnel information system at Reinhold & Mahla
  • Severely disabled person registration, professional association registrations, State Statistical Office, trade tax breakdown, contributions for the various employers' associations, contribution splitting for the occupational and occupational health service, Chamber of Commerce and Industry membership fees
  • Generalist support function operational departments in preparation of documents related to foreign contract workers
  • Led team for the settlement and adjustment of pension benefits
  • Coordinated cross-functional collaboration to streamline pension benefit calculations, ensuring compliance with evolving regulatory requirements and enhancing process transparency.
Jan 1985 - Dec 1990
6 years
Munich, Germany

Human Resources Department - HR Coordination

Siemens AG

  • Payroll-Management and execution
  • Travel-Expense-Reporting
  • Account reconciliation
  • Domestic and foreign secondments
  • Processing of hiring, transfers and terminations, appointments and contract changes.

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 Professional Services (29.5 years), Pharmaceutical (26 years), Advertising (26 years), Retail (24.5 years), Manufacturing (8 years), and Energy (4 years).

Professional Services
Pharmaceutical
Advertising
Retail
Manufacturing
Energy

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 Human Resources (40.5 years), Project Management (33 years), Strategy (28 years), Finance (27.5 years), Marketing (26 years), and Accounting (24.5 years).

Human Resources
Project Management
Strategy
Finance
Marketing
Accounting

Summary

Senior HR executive with many years of international experience leading HR and HRIS transformation programs in the context of carve-outs, mergers & acquisitions, and post-merger integrations. Specialised in stabilising and realigning HR and SAP HCM landscapes, data harmonisation, organisation design, governance, and overseeing global workstreams. Strong leader, confident decision-maker, and experienced in handling complex stakeholders, international management teams, and external providers. Highly skilled in separating, migrating, and reintegrating HR processes and systems—with a clear focus on business continuity, compliance, and sustainable process quality.

Skills

  • Income Tax Law
  • Social Security Law
  • Labor Law
  • Coaching Training - Dehner Academy
  • Sap R/3 Hr - Modular Programming

Languages

German
Native
English
Advanced

Education

Oct 1990 - Jun 1997

Fernuniversität Hagen

Intermediate diploma with subject-specific higher education entrance qualification · Economics · Hagen, Germany

Oct 1988 - Jun 1990

Telekolleg München

University Entrance Qualification · Munich, Germany

Oct 1986 - Jun 1988

Evening school (adult education center)

...and 3 more

Certifications & licenses

Boating License SBF Sea And Inland Navigation

Certificate Of Participation In The Training According To Section 4 Paragraph 1 No. 4 Of The Restaurant Act

Certificate Of Professional Suitability For Domestic And International Transport By Taxi And Rental Car

Passenger Transport License - (Taxi)

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Irmgard based?

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

What languages does Irmgard speak?

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

How many years of experience does Irmgard have?

Irmgard has at least 41 years of experience. During this time, Irmgard has worked in at least 18 different roles and for 12 different companies. The average length of individual experience is 2 years and 3 months. Note that Irmgard may not have shared all experience and actually has more experience.

What roles would Irmgard be best suited for?

Based on recent experience, Irmgard would be well-suited for roles such as: Selfemployed - Interims Management in M&A Environments, Global HR Transformation & PMI / Carve-out - Interim Senior HR / Change & PMI Lead, Post-Merger Integration HR - Interim HR & Payroll Transformation Lead.

What is Irmgard's latest experience?

Irmgard's most recent position is Selfemployed - Interims Management in M&A Environments at Irmgard Drey e.K..

What companies has Irmgard worked for in recent years?

In recent years, Irmgard has worked for Irmgard Drey e.K., (Industry / Technology), (Pharma / Biotech), (Industriekonzern), and TripleCar GmbH.

Which industries is Irmgard most experienced in?

Irmgard is most experienced in industries like Professional Services, Pharmaceutical, and Advertising. Irmgard also has some experience in Retail, Manufacturing, and Energy.

Which business areas is Irmgard most experienced in?

Irmgard is most experienced in business areas like Human Resources (HR), Project Management, and Strategy and Planning. Irmgard also has some experience in Finance, Marketing, and Accounting.

Which industries has Irmgard worked in recently?

Irmgard has recently worked in industries like Professional Services, Pharmaceutical, and Advertising.

Which business areas has Irmgard worked in recently?

Irmgard has recently worked in business areas like Human Resources (HR), Project Management, and Strategy and Planning.

What is Irmgard's education?

Irmgard attended Fernuniversität Hagen for Economics.

Does Irmgard have any certificates?

Irmgard has 4 certificates. Among them, these include: Boating License SBF Sea And Inland Navigation, Certificate Of Participation In The Training According To Section 4 Paragraph 1 No. 4 Of The Restaurant Act, and Certificate Of Professional Suitability For Domestic And International Transport By Taxi And Rental Car.

What is the availability of Irmgard?

Irmgard is immediately available full-time for suitable projects.

What is the rate of Irmgard?

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

How to hire Irmgard?

To hire Irmgard, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

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900
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Market avg: 940-1100 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.