Matthias Bullmahn - Interim Change Manager

Q: Where is Matthias based?

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

Q: What languages does Matthias speak?

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

Q: How many years of experience does Matthias have?

Matthias has at least 21 years of experience. During this time, Matthias has worked in at least 29 different roles and for 37 different companies . The average length of individual experience is 1 year and 6 months . Note that Matthias may not have shared all experience and actually has more experience.

Q: What is Matthias's latest experience?

Matthias's most recent position is Interim Change Manager at Automotive manufacturer (OEM) .

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

In recent years, Matthias has worked for Automotive manufacturer (OEM) , State police authority , Federal agency , FHDW , and State ministry .

Q: Which industries is Matthias most experienced in?

Matthias is most experienced in industries like Professional Services , Information Technology (IT) , and Government and Public Administration . Matthias also has some experience in Manufacturing , Tourism and Hospitality , and Education .

Q: Which business areas is Matthias most experienced in?

Matthias is most experienced in business areas like Information Technology (IT) , Sales , and Human Resources (HR) . Matthias also has some experience in Project Management , Strategy and Planning , and Finance .

Q: Which industries has Matthias worked in recently?

Matthias has recently worked in industries like Professional Services , Government and Public Administration , and Information Technology (IT) .

Q: Which business areas has Matthias worked in recently?

Matthias has recently worked in business areas like Information Technology (IT) , Human Resources (HR) , and Strategy and Planning .

Recommended expert

Solingen, Germany

Experience

Jun 2025 - Oct 2025

5 months

Germany

Interim Change Manager

Automotive manufacturer (OEM)

Agile transformation of the entire executive board division for battery development using SAFe.
Set up 5 Agile Release Trains and an agile portfolio.
Prepared the shift from a functional to a process-based organization.
Managed a scope of 400+ people across Germany, Europe and China.
Applied tailored SAFe methods.
Stakeholder management as well as consulting, training and coaching of leadership (product management, release train engineers, system architects).
Built a portfolio with budgets from around €150 million up to over €1 billion.
Trained junior colleagues at Big4 consulting firms.
Introduced PI plannings, quality metrics and team training.

Jan 2025 - Jun 2025

6 months

Germany

Interim Change Manager

State police authority

Agile transformation of a police software and infrastructure department at the state level, and partially for other states.
Oversaw development, operations, support and incident management (levels 1-3).
Advanced Scrum and Kanban methods.
Led change communication and one-on-one coaching for the department head and specialist coordinators.
Trained and coached product owners.
Introduced SAFe PI Planning and conducted a survey on agile maturity.
Advised on the implementation of the IT campus and the new pillar structure in an agile context.
Managed stakeholder engagement for over 50 people.

Aug 2024 - Dec 2024

5 months

Germany

Agile Coach

Federal agency

SAP S/4HANA greenfield implementation in the Agile Release Train P2P, SRM/MM module, as part of a SAFe solution train.
Supported a team and leadership in advancing the agile methodology.
Advised stakeholders and conducted leadership coaching.
Responsible for change communication and one-on-one coaching of team members.
Managed a scope of over 500 people in Germany using tailored SAFe.

Feb 2024 - Present

2 years 1 month

Germany

Lecturer

FHDW

Teaching Professional Negotiation.

Dec 2023 - Jun 2024

7 months

Czech Republic

Interim Head of Requirements Management and Transformation Manager

State ministry

Statewide replacement of the current software for health offices with a unified, cloud-based solution.
Supported teams and leadership in advancing the SAFe agile methodology.
Advised stakeholders and conducted leadership coaching.
Responsible for change communication and one-on-one coaching of team members.
Conducted process analyses and defined artifacts for MVP 1.
Managed a scope of over 60 people in Germany and Prague.

May 2023 - Dec 2023

8 months

Romania

Agile Leadership Coach

Steel company

Global rollout of AI-based pricing and new pricing software and processes in SAP S/4HANA.
Supported teams and leadership in advancing agile methods Scrum and SAFe.
Advised stakeholders and designed and delivered agile training and workshops.
Responsible for change communication and leadership coaching.
Scope of 200+ people in Germany and Romania.

Apr 2023 - Present

2 years 11 months

Germany

Lecturer

DIPLOMA

Created and delivered the Digital Leadership module for the Digital Management and Digital Value Creation certification.
Prepared the integration of the Digital Leadership module into the master's program.
Conducted workshops on leadership and professional negotiation.

Apr 2023 - Aug 2023

5 months

Executive Coach

Automotive manufacturer (OEM)

Introduced SAFe for 1,500+ people and in the corporate context for 10,000+ people.
Coached 15 executives.
Result: strategic decision by the entire executive board to roll out SAFe in phases for an initial 500+ people based on the presented strategy.

Nov 2022 - Present

3 years 4 months

Germany

Interim Restructuring Manager

Window and door manufacturer – insolvency under self-administration

Strengthened the management team under self-administration as a sparring partner – built quick decision-making skills and leadership confidence.
Managed site closures and staff reductions – executed with low conflict, securing cost structures sustainably.
Initiated end-to-end process analysis – identified inefficiencies and launched immediate measures to secure liquidity.
Held critical employee discussions – increased motivation, clarity, and performance focus during the restructuring phase.
Quantified and prioritized investment backlog – provided a solid basis for decisions by creditors and management.
Built and prioritized a strategic portfolio – directed capital to value-creating initiatives and created transparency for stakeholders.
Strengthened management's negotiation power – empowered purchasing, HR, and the managing board to secure significant improvements in conditions and persuaded existing suppliers to make concessions.
Initiated transformation into a value-stream-oriented organization – reduced lead times and increased operational transparency.
Coached new leaders on the job – strengthened leadership skills and avoided leadership errors during the crisis.

Oct 2022 - Apr 2023

7 months

Ukraine

Interim Transformation Manager

Information technology (hidden champion)

Implemented Lean Portfolio Management and advanced agile transformation with SAFe approaches.
Advised and coached the CEO and the Portfolio Manager.
Analyzed the business unit for the introduction of a product-focused organization.
Supported the Lean Portfolio Manager in furthering the agile transformation.
Conducted change communication, training, and coaching for all employees.
Scope of 200+ people in Germany and Ukraine.

Jul 2022 - Present

3 years 8 months

Germany

Trainer

Various Clients

Designed and delivered organizational trainings in agile, SAFe, and leadership.
Conducted trainings on sales psychology and negotiation techniques.
Conducted workshops and gave talks at international and national agile conferences.

Jul 2022 - Dec 2025

3 years 6 months

Germany

Senior Leadership Trainer

Accenture

Trained over 1,500 people.
Conducted SAFe trainings for leaders, including Leading SAFe, SAFe Release Train Engineer (RTE), SAFe Product Manager/Product Owner, SAFe Scrum Master, and SAFe for Architects.
Designed and delivered agile and "Agile 4/SAP" trainings.

Jan 2022 - Dec 2025

4 years

Germany

Trainer

IHK zu Dortmund

Designed and delivered the first IHK-certified training course for Agile Transformation Coach.

Oct 2021 - Jun 2022

9 months

Germany

Interim Transformation Manager

Automotive Group

Worked in R&D on a data platform for future car generations.
Advised and coached TMK/OMK and program management.
Analyzed agile ways of working and assessed the introduction of SAFe for projects with over 80 people.
Trained and coached leadership and teams on adopting agile ways of working.
Supported tendering projects using the SAFe methodology.
Managed over 110 people in Germany with a 200 million euro budget.

Jul 2021 - Oct 2021

4 months

Germany

Interim Transformation Manager

CATENA-X

Built a European data exchange platform for the automotive industry.
Set up an Agile Release Train for over 100 people for the first PI Planning.
Trained and coached key roles such as RTE, PM, SA, SE, and PO.
Supported product management in creating the backlog and vision.
Collaborated with product owners on backlog prioritization.
Managed a project of over 500 people in Germany with 5 Agile Release Trains and a budget of over 250 million euros.

Mar 2021 - Jun 2021

4 months

Interim Transformation Manager

Biotechnology and Pharmaceutical Group

Global SAP S/4 HANA greenfield implementation with a budget of over $1 billion.
Advising and coaching the program manager, vendor manager, and PMO leads.
Creating an MVP for the agile playbook and defining the agile ways of working.
Developing the training curriculum and conducting stakeholder management.
Strategic consulting for a tender to four global consulting firms and managing the vendor selection process.
Developing the change communication strategy and the solution roadmap.

Feb 2021 - Jun 2021

5 months

Germany

Interim Transformation Manager

Municipal Utilities

Reviewing all supplier contracts and converting them into process descriptions, job profiles, and value profiles.
Preparing a decision paper on insourcing and outsourcing.
Preparing the documents for a Europe-wide tender.
Developing a change concept including change communication.
Scope of 100+ people in Germany.

Jan 2021 - Present

5 years 2 months

Germany

Interim Manager / Founder

skAGIL

Specializing in tailored solutions at the heart of change and transformation processes.
Helping companies navigate the complexities of the digital transformation journey with precision and expertise.
Focusing on people and collaboration alongside successful transformation.
Conducting leadership development and building customized agile academies and training programs.

May 2020 - Aug 2020

4 months

Germany

Lean-Agile Coach / Workstream Lead

Specialized Machinery and Plant Engineering

Consolidating over 60 SAP systems into a single S/4 HANA system.
Advising the CIO/CFO and program leadership on developing the implementation strategy.
Supporting the creation of team and program backlogs.
Selecting and implementing an agile project management tool.
Preparing Big Room Planning and configuring stakeholder-specific training sessions.
Executing change communication and defining KPIs.
Scope of 200+ people globally with a budget of €200 million.

Jan 2020 - Apr 2020

4 months

Germany

Lean-Agile Coach

Automotive OEM

Global SAP finance and controlling template for all brands.
Advising the client's program management and Accenture senior management on agile strategy.
Scope of 400+ people globally with a budget of €150 million.

Aug 2019 - Nov 2019

4 months

Germany

Interim Transformation Manager

Statutory Health Insurance Fund

Introduced agile ways of working as part of the company-wide AOK 2022 transformation.
Prepared and supported the execution and follow-up of the first two Big Room Planning sessions.
Scope of 100+ people in Magdeburg.

Jul 2019 - Jul 2019

1 month

Proposal Lead

European Aviation Company

Prepared proposal to deliver agile training.
Organized, coordinated and delivered the on-site sales presentation.
Result: Placed 2nd due to cost; feedback was best presentation under the time limit.

Jun 2019 - Dec 2019

7 months

United States

Lean-Agile Coach, SAFe Coach

Electrical and Energy Technology

Global Salesforce rollout for the customer journey.
Introduced SAFe including 2 PI planning workshops.
Acted as RTE for 2 PIs and handed over to the customer counterpart.
Provided training and coaching at all levels, including the executive board.
Coached product management on backlog creation, roadmap planning and prioritization.
Carried out change communication.
Scope of 180+ people across 14 offices worldwide with a budget of EUR 100 million.

May 2019 - May 2019

1 month

United Kingdom

Program Management Coach

Mobile Communications and Telecommunications

SAP S/4 HANA transformation with a budget of GBP 150 million.
Strategic advisor to the CFO and the Accenture program leadership on using SAFe.
Scope of 300+ people in the UK.

Jan 2019 - May 2019

5 months

Austria

Senior Team Coach

Insurance Company

Consolidated all SAP systems with a budget of EUR 2 billion.
Conducted CIO coaching and increased visibility of workflow blockers.
Optimized workflow and carried out change communication.
Rolled out the Agility Health Radar across the company to measure agile transformation success for over 50 teams.
Scope of 150+ people in Austria.

Mar 2018 - Dec 2018

10 months

Latvia

SAFe Portfolio Coach

Insurance and Financial Services

SAP HANA native development program with a budget of 200 million euros.
Introduced SAFe with 2 Agile Release Trains.
Coordinated portfolio-level activities for outcome-oriented epic prioritization.
Coached epic owners and optimized flow to reduce impediments.
Built a LACE (Lean-Agile Center of Excellence) team and led 4 agile coaches.
Executed change communications.
Scope of 250+ people globally.

Dec 2017 - Mar 2018

4 months

Germany

Lean-Agile Coach

Diversified conglomerate

Consolidated six SAP BI systems with a budget of 20 million euros.
Prepared for the agile project kick-off and trained all project team members.
Delivered on-site training and coaching in India.
Supported backlog creation and defined and implemented metrics.
Prepared and conducted PI planning and supported change communications.
Scope of 80+ people globally.

Nov 2017 - Jan 2021

3 years 3 months

Germany

Senior SAP Lean-Agile Coach / Consultant / Trainer

Accenture

Founding member and part of the leadership team for the SAP Delivery Excellence Domain, responsible for recruiting and sales.
Designed and launched the world's first global SAP-Agile Academy for employees at manager level and above.
Trained participants to become Lean-Agile experts in bootcamps and co-developed the financial concept.
Developed a training academy for the open market and ICAgile-certified trainings.
Further developed the SAP-Agile Jump Start talent program to increase the maturity of new hires.
Coached and led 8 colleagues as a career counselor using OKRs.
Conducted a coaching experiment to improve agile leadership skills.
Advised senior managers and program owners up to board level at Accenture and for clients.
Responsible for change communications within the department and to the global organization.

Jan 2017 - Oct 2017

10 months

Germany

Senior Consultant, Salesforce

entero AG

Jul 2014 - Dec 2016

2 years 6 months

Germany

SAP Consultant

Accenture GmbH

Worked as an SAP consultant in the modules Finance / Controlling (FI/CO), ABAP, and Logistics (SD/MM).

Mar 2013 - Jun 2014

1 year 4 months

Germany

SAP CRM Consultant

ITML GmbH

Consulting in the Finance / Controlling (FI/CO), ABAP and Logistics (SD/MM).

Jan 2012 - Jul 2012

7 months

Germany

Account Manager, Executive Search

division one

Oct 2010 - Dec 2011

1 year 3 months

Germany

Sales Associate for freelance SAP experts

K2 Partnering Solutions

Apr 2006 - Sep 2009

3 years 6 months

United Kingdom

Freelance tour guide

TUI Wolters

Assignments in the Lofoten Islands and on the Channel Islands.

Nov 2003 - Mar 2004

5 months

Germany

Service staff

Diskotheken Klapsmühle/Neuschwanstein

Jan 2003 - Oct 2003

10 months

Germany

Sales Representative, Inventory Management Software

KDT Internet GmbH

Oct 2002 - Dec 2002

3 months

Germany

System Technician

D-Consult

Apr 2002 - Sep 2002

6 months

Germany

Interim IT Manager

DATEV e.G.

Responsible for 2 DATEV locations and 5 training centers.

Jul 2001 - Feb 2002

8 months

Germany

Sales Representative, Inventory Management Software

Haussmann & Wynen DV GmbH

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 (14.5 years), Information Technology (13.5 years), Government and Administration (4 years), Manufacturing (3.5 years), Tourism (3.5 years), and Education (3 years).

Professional Services

Information Technology

Government and Administration

Manufacturing

Tourism

Education

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 Information Technology (13 years), Sales (9.5 years), Human Resources (9 years), Project Management (7 years), Strategy (5.5 years), and Finance (4 years).

Information Technology

Sales

Human Resources

Project Management

Strategy

Finance

Summary

Matthias Bullmahn is a hands-on interim manager with a clear signature: delivering transformations to the finish line – even when it gets tough. He combines many years of leadership experience in international corporations with deep operational grounding, from the shop floor to the executive board.

He started his career as an SAP consultant and has since supported global S/4HANA programs, digital transformations and complex portfolio and organizational developments with budgets ranging from €30 million to over €1 billion. As a founding member of a global delivery unit at Accenture, he was responsible for recruiting, training and operational control in large-scale programs.

Matthias stands out for his pragmatic approach, high speed-to-impact and consistent result orientation. He builds stakeholder commitment, creates transparency, stabilizes leadership teams and enables organizations to execute effectively – especially in challenging situations like restructurings or self-administered insolvencies.

Whether in the public sector or industry, enterprise or mid-market: Matthias Bullmahn delivers quick stabilization, clear decision-making foundations and sustainable transformation results. Interim providers appreciate him as a reliable fit for roles like transformation manager, change lead, program steering or restructuring.

Skills

Interim Management
Restructuring (Incl. Self-administered Insolvency)
Business Process Development
Digitization
C-level Consulting
Change And Transformation Management
Organizational Development
Stakeholder Management
Portfolio Management
Sales Psychology
Professional Negotiation Management
Lean Agile Portfolio Management
Lean Methods
Global Sap Roll-out
Sap S/4hana
Co-initiator And Trainer "Agile Transformation Coach" Ihk Dortmund
Incident Management

Languages

German

Native

English

Advanced

Education

Sep 2005 - Feb 2010

Jade University of Applied Sciences Wilhelmshaven

Diploma in Business Administration (FH) · Business studies · Wilhelmshaven, Germany · 2.3

Aug 1997 - Jul 2000

Datev e.G.

IT systems clerk (IHK) · Vocational training as IT systems clerk · Nuremberg, Germany

Certifications & licenses

Crisis Communication

Scotland Yard

Storytelling Coach

Stories That Sell

Self-control in negotiations

TÜV Rheinland certified "Expert in Sales Psychology"

TÜV Rheinland

Business Storytelling

FBI Crisis Negotiation and Influence

Certificate of Excellence in Business Negotiations I - IV, CEBN®

CEBN®

Training from the Back of the Room Practitioner

Sales Psychology

Matthias Niggehoff

emTrace® Coach, Level 2

Dirk W. Eilert

Advanced Negotiation Skills

Scotwork

Advanced seminar 'Zürcher Resource Model'

INeKO Köln

ERP with SAP S/4HANA, TS410

Hogan Assessment Consultant Certification

SAP FI – General Ledger & Financial Closing with SAP S/4HANA

Systemic Coach and Change Manager

INeKO Köln

emTrace® Coach, Level 1

Dirk W. Eilert

ICAgile Authorized Instructor, SAP Delivery Agility Fundamentals

ICAgile

ICAgile Certified Professional

ICAgile

ICAgile Certified Professional - Agile Coaching

ICAgile

ICAgile Certified Professional - Agile Team Facilitation

ICAgile

ICAgile Certified Professional - Agility in the Enterprise

ICAgile

ICAgile Certified Professional – Coaching Agile Transitions

ICAgile

Agility Health Facilitator

Certified Agile Requirements Specialist

Certified Kanban Management Professional

Certified SAFe® 6 Program Consultant (SPC)

Certified SAFe® 6 Release Train Engineer (RTE)

Lean Sigma Six, Yellow Belt

Prince 2 Foundation

Scrum Master, PSM 1

Scrum.org

Salesforce ADM 201

Certified SAP ABAP Developer

Alfa Institut

ITIL

Profile

Created

May 2024

Last Update

January 2026

Need a freelancer? Find your match in seconds.

Try FRATCH GPT

Frequently asked questions

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

Where is Matthias based?

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

What languages does Matthias speak?

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

How many years of experience does Matthias have?

Matthias has at least 21 years of experience. During this time, Matthias has worked in at least 29 different roles and for 37 different companies. The average length of individual experience is 1 year and 6 months. Note that Matthias may not have shared all experience and actually has more experience.

What roles would Matthias be best suited for?

Based on recent experience, Matthias would be well-suited for roles such as: Interim Change Manager, Agile Coach, Lecturer.

What is Matthias's latest experience?

Matthias's most recent position is Interim Change Manager at Automotive manufacturer (OEM).

What companies has Matthias worked for in recent years?

In recent years, Matthias has worked for Automotive manufacturer (OEM), State police authority, Federal agency, FHDW, and State ministry.

Which industries is Matthias most experienced in?

Matthias is most experienced in industries like Professional Services, Information Technology (IT), and Government and Public Administration. Matthias also has some experience in Manufacturing, Tourism and Hospitality, and Education.

Which business areas is Matthias most experienced in?

Matthias is most experienced in business areas like Information Technology (IT), Sales, and Human Resources (HR). Matthias also has some experience in Project Management, Strategy and Planning, and Finance.

Which industries has Matthias worked in recently?

Matthias has recently worked in industries like Professional Services, Government and Public Administration, and Information Technology (IT).

Which business areas has Matthias worked in recently?

Matthias has recently worked in business areas like Information Technology (IT), Human Resources (HR), and Strategy and Planning.

What is Matthias's education?

Matthias attended Jade University of Applied Sciences Wilhelmshaven for Business studies.

Does Matthias have any certificates?

Matthias has 34 certificates. Among them, these include: Crisis Communication, Storytelling Coach, and Self-control in negotiations.

What is the availability of Matthias?

Matthias is immediately available full-time for suitable projects.

What is the rate of Matthias?

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